{"title":"Ronstan Sailing Blocks","description":"\u003cp class=\"nvn-collection-hero\"\u003eRonstan builds blocks that run smooth and hold up to load. Match the bearing type, sheave size, and configuration to your line diameter and where the block lives in the system.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-collection-guide\"\u003e\n\u003cp\u003eBlocks are the heart of a running rigging system, and Ronstan builds them for everything from dinghies to offshore keelboats. This collection covers the full range of ball bearing and plain bearing blocks, single through triple, plus fiddle, ratchet, and cam variants. Choosing right comes down to your line diameter, the working load, and where the block sits in the system.\u003c\/p\u003e\n\u003ch3\u003eSize the sheave to your line\u003c\/h3\u003e\n\u003cp\u003eStart with line diameter. Each block lists a maximum line size, and the sheave diameter should be large enough that the line runs freely without pinching or excess friction. A sheave that is too small chafes the line and adds drag, so match the block to the largest line that will pass through it and leave a little room.\u003c\/p\u003e\n\u003ch3\u003eBall bearing or plain bearing\u003c\/h3\u003e\n\u003cp\u003eBall bearing blocks spin freely under light to moderate load, which makes them ideal for sheets and control lines that you trim constantly, like a mainsheet or spinnaker gear. Plain bearing blocks carry higher static loads with less concern for free running, which suits halyards and high-load turning points that sit under tension but move less. Match the bearing to how the block is used.\u003c\/p\u003e\n\u003ch3\u003ePick the configuration\u003c\/h3\u003e\n\u003cp\u003eSingle blocks turn a line, while double and triple blocks build purchase in a tackle. A fiddle block stacks two sheaves of different sizes for a compact multi-part system. A ratchet block holds load in one direction so you can hand-hold a sheet without it slipping, which saves your hands and a cleat. Choose the configuration that builds the purchase and control your system needs.\u003c\/p\u003e\n\u003ch3\u003eAttachment matters\u003c\/h3\u003e\n\u003cp\u003eBlocks attach by shackle, loop head, or lashing. Loop and lashing heads articulate and save weight, which racers like, while shackle heads are quick to swap. Match the attachment to your padeye or becket and the load, and add a becket where you need to dead-end a line in the tackle.\u003c\/p\u003e\n\u003ch3\u003eMatch the load to the boat\u003c\/h3\u003e\n\u003cp\u003eRonstan groups blocks into series by size and load rating. Bigger boats and higher loads need a larger series with a higher safe working load. Do not undersize a block at a high-load turning point, because a failure under load is dangerous and expensive.\u003c\/p\u003e\n\u003cp\u003eNot sure which blocks your rig needs? Tell our crew your line sizes and where the blocks go, and we will match the series, bearing, sheave, and attachment so the system runs smooth and holds load.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-collection-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I size a block to my line?\u003c\/summary\u003e\n    \u003cp\u003eEach block lists a maximum line diameter, and the sheave should be large enough that the line runs freely without pinching. Match the block to the largest line passing through it and leave a little room so it does not chafe or add drag.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eBall bearing or plain bearing blocks?\u003c\/summary\u003e\n    \u003cp\u003eBall bearing blocks spin freely under light to moderate load, ideal for sheets and control lines you trim often. Plain bearing blocks carry higher static loads with less concern for free running, which suits halyards and high-load turning points.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is a ratchet block for?\u003c\/summary\u003e\n    \u003cp\u003eA ratchet block holds load in one direction so you can hand-hold a sheet without it slipping back. It saves your hands and reduces the need to cleat off, which is handy on a mainsheet or jib sheet.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is a fiddle block?\u003c\/summary\u003e\n    \u003cp\u003eA fiddle block stacks two sheaves of different sizes in one body, which builds a compact multi-part purchase system. It is common in mainsheet and vang tackles where you want power in a small package.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know a block is strong enough?\u003c\/summary\u003e\n    \u003cp\u003eRonstan groups blocks into series by size and safe working load. Match the series to your boat size and the load at that point, and never undersize a block at a high-load turning point, since a failure under load is dangerous.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eRelated Collections\u003c\/h2\u003e\n\u003cul class=\"nvn-related-collections\"\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.nvnmarine.com\/collections\/sailing\"\u003eSailing\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.nvnmarine.com\/collections\/ronstan-products\"\u003eRonstan\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.nvnmarine.com\/collections\/sailing-shackles-rings-pins\"\u003eShackles, Rings \u0026amp; Pins\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"CollectionPage\",\n    \"name\": \"Ronstan Sailing Blocks\",\n    \"description\": \"Shop Ronstan sailing blocks: ball bearing and plain bearing, single to triple, fiddle and ratchet. Size to your line and load. Same-day shipping.\",\n    \"url\": \"https:\/\/www.nvnmarine.com\/collections\/ronstan-products-blocks\"\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"BreadcrumbList\",\n    \"itemListElement\": [\n        {\n            \"@type\": \"ListItem\",\n            \"position\": 1,\n            \"name\": \"Home\",\n            \"item\": \"https:\/\/www.nvnmarine.com\"\n        },\n        {\n            \"@type\": \"ListItem\",\n            \"position\": 2,\n            \"name\": \"Ronstan Sailing Blocks\",\n            \"item\": \"https:\/\/www.nvnmarine.com\/collections\/ronstan-products-blocks\"\n        }\n    ]\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I size a block to my line?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Each block lists a maximum line diameter, and the sheave should be large enough that the line runs freely without pinching. Match the block to the largest line passing through it and leave a little room so it does not chafe or add drag.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Ball bearing or plain bearing blocks?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Ball bearing blocks spin freely under light to moderate load, ideal for sheets and control lines you trim often. Plain bearing blocks carry higher static loads with less concern for free running, which suits halyards and high-load turning points.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is a ratchet block for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A ratchet block holds load in one direction so you can hand-hold a sheet without it slipping back. It saves your hands and reduces the need to cleat off, which is handy on a mainsheet or jib sheet.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is a fiddle block?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A fiddle block stacks two sheaves of different sizes in one body, which builds a compact multi-part purchase system. It is common in mainsheet and vang tackles where you want power in a small package.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I know a block is strong enough?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Ronstan groups blocks into series by size and safe working load. Match the series to your boat size and the load at that point, and never undersize a block at a high-load turning point, since a failure under load is dangerous.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","products":[{"product_id":"66130-ronstan-series-25-t-track-composite-slide","title":"Ronstan Series 25 T-Track - Composite Slide - Series 40 BB Orbit Block\u0026#153; - Stand Up - Suits 9mm(5\/16\u0026quot;) Rope","description":"\u003cb\u003eSeries 25 T-Track - Composite Slide - Series 40 BB Orbit Block 153; - Stand Up - Suits 9mm(5\/16\") Rope\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eFor small keel boats and sportsboats T-track jib leads are a great blend of performance and functionality in a simple, efficient package. Composite slide bodies with plunger stops run on anodised aluminium track, and allow quick and easy manual adjustment. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eLightweight\u003c\/b\u003e\u003cbr\u003eComposite jib lead cars continue the design philosophy of the award winning Ronstan BB and RT Orbit Blocks™, with virtually all metal components now replaced with high-tech polymers and fiber equivalents. The car design has been modelled and optimised using finite element analysis and rapid prototyping techniques to achieve maximum strength-to-weight characteristics. Orbit Block™ models use a Dyneema® Link which is 10 times stronger and lighter than steel, to provide the articulated connection between block and car.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIntegrated Functionality\u003c\/b\u003e\u003cbr\u003eThe clever 2-piece car body is molded from a composite material that delivers low friction on the alloy track without the need for separate inserts. It also provides the required mechanical strength without the weight and corrosion drawbacks of metal parts. An integrated becket at the forward end of the car suits 2:1 sheet systems and the removable threaded pin allows easy fitting of alternate blocks and accessories.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLow Profile and Compact\u003c\/b\u003e\u003cbr\u003eSleek styling and the positioning of the attachment pin provide a low lead aft for the lead block. The Dyneema® Link allows full articulation. The plunger stop button has a flush finish and the contoured form of the car eliminates the chance of lines and sails becoming snagged.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePrecise Adjustment\u003c\/b\u003e\u003cbr\u003eThe ergonomic plunger stop toggle combined with low friction of the car body allows for easy one-handed adjustment. The toggle is located at the rear of the car for easy access from the cockpit on sports boats and small keel boats. An arrow is located on the side to indicate the position of the stop for repeatable settings. A 'Racing' track has 25mm(63\/64\") stop hole spacing for even more precise control of the car position and sheeting angle.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow profile and lightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRemovable attachment pin to suit either Dyneema® Link or a shackle\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIntegrated becket for 2:1 headsail sheet systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eHeadsail sheet leads on boats up to 8M (26').\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003eToughened, glass fibre reinforced Nylon slide.\u003cbr\u003e\u003cbr\u003eD\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eLength:\u003c\/b\u003e\t102mm(4\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t325kg(715lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t700kg(1,540lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t144g(5.1oz) \u003cbr\u003e\u003cbr\u003e\"Rope for small keel boats and sportsboats T-track JIB leads are a great blend of performance and functionality in a simple, efficient package. Composite slide bodies with plunger stops run on anodised aluminium track, and allow quick and easy manual adjustment. Lightweight composite jib lead cars continue the design philosophy of the award winning Ronstan BB and RT orbit blocks, with virtually all metal components now replaced with high-tech polymers and fibre equivalents. The car design has been modelled and optimised using finite element analysis and rapid prototyping techniques to achieve maximum strength-to-weight characteristics. Orbit block models use a dyneema link which is 10 times stronger and lighter than steel, to provide the articulated connection between block and car. Integrated functionality: the clever 2-piece car body is molded from a composite material.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55019\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RC72536S\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800435326\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537147342941,"sku":"55019","price":71.59,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-25-t-1_7bf76f23-a840-46c4-a469-7600bf67e546.jpg?v=1673091351"},{"product_id":"66135-ronstan-race-sheave-acetal-ball-bearing","title":"Ronstan Race Sheave - Acetal Ball Bearing - 28mm (1-1\/8\u0026quot;) OD","description":"\u003cb\u003eRace Sheave - Acetal Ball Bearing - 28mm(1-1\/8\") OD\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003ePrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAcetal Sheaves:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eChoice of bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings - minimum friction under moderate loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eU.V. resistant Acetal sheaves\u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003e\u003cbr\u003eRace pulley-acetal ball bearing-28mm (1-1\/8\") outer diameter precision molded acetal pulley runs on glyoxal or Torlon ball bearings to provide high performance and low friction. Acetal ...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55024\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF1020\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800073375\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537148522589,"sku":"55024","price":7.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-race-sheave-acetal-1.jpg?v=1673091363"},{"product_id":"66136-ronstan-race-sheave-acetal-ball-bearing","title":"Ronstan Race Sheave - Acetal Ball Bearing - 38mm (1-1\/2\u0026quot;) OD","description":"\u003cb\u003eRace Sheave - Acetal Ball Bearing - 38mm(1-1\/2\") OD\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003ePrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAcetal Sheaves:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eChoice of bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings - minimum friction under moderate loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eU.V. resistant Acetal sheaves\u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003e\u003cbr\u003eAcetal ball bearings-38mm (1-1 \/ 2) outer diameter precision molded acetal pulleys running on acetal or Torlon ball bearings provide high performance and low friction.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55025\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF1766\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800130177\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537148620893,"sku":"55025","price":17.25,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-race-sheave-acetal-1_646a9ba7-ddcb-4690-af1d-26fae1902cce.jpg?v=1673091366"},{"product_id":"66138-ronstan-race-sheave-acetal-solid-bearing","title":"Ronstan Race Sheave - Acetal Solid Bearing - 28mm (1-1\/8\u0026quot;) OD","description":"\u003cb\u003eRace Sheave - Acetal Ball Bearing - 28mm(1-1\/8\") OD\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003ePrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAcetal Sheaves:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eChoice of bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSolid bearing - high strength and durability, utilizing the self-lubricating properties of Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eU.V. resistant Acetal sheaves\u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003e\u003cbr\u003eAcetal Ball Bearings-28mm outer diameter (1-1\/8) precision molded acetal pulleys running on acetal or Torlon ball bearings provide high performance and low friction.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55027\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF128\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800055272\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537148948573,"sku":"55027","price":4.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-race-sheave-acetal-1_20d14544-cbbb-4622-b635-24bf1d82efb0.jpg?v=1673091371"},{"product_id":"66139-ronstan-race-sheave-rope-wire-nylatron","title":"Ronstan Race Sheave - Rope\/Wire - Nylatron\u0026reg; - 25mm (1\u0026quot;) OD","description":"\u003cb\u003eRace Sheave - Rope\/Wire - Nylatron® - 25mm(1\") OD\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThese sheaves are made from a unique plastic material which is suitable for use with wire.  Nylatron® is a cast, partially cross-linked polyamide compound which has been modified with a MoS2 filler. It has excellent wear resistance, self lubrication and low friction properties.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExcellent wear resistance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for use with wire or rope\u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003e\u003cbr\u003e\"These sheaves are made from a unique plastic material which is suitable for use with wire. Nylatron is a cast, partially cross-linked polyamide compound which has been modified with a mos2 filler. It has excellent wear resistance, self lubrication and low friction properties. Features: excellent wear resistance suitable for use with wire or rope high quality made of great materials weight 0. 09 Lb color: green.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55028\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF131\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800022755\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537149079645,"sku":"55028","price":5.14,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-race-sheave-rope-1.jpg?v=1673091374"},{"product_id":"66140-ronstan-series-40-ap-sheave-acetal","title":"Ronstan Series 40 AP Sheave - Acetal Solid Bearing - 40mm (1-9\/16\u0026quot;)OD","description":"\u003cb\u003eSeries 40 AP Sheave - Acetal Solid Bearing - 40mm(1-9\/16\")OD\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003ePrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAcetal Sheaves:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eChoice of bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSolid bearing - high strength and durability, utilizing the self-lubricating properties of Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eU.V. resistant Acetal sheaves\u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003e\u003cbr\u003eRonstan's Acetal pulley series is made of specially modified UV-resistant materials, which can provide a long service life in harsh marine environments. Acetal has high strength, impact resistance and wear characteristics, which is very suitable for this application. It also has excellent low friction properties and is suitable for bearing applications. A 1 9\/16 inch B 9\/16 inch C 5\/16 inch Maximum wire rope Ø3\/8 in. Max. Cable Ø-suit block series 40 universal weight-oz.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55029\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF41000\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800066971\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537149767773,"sku":"CWR-55029","price":8.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-40-ap-1.jpg?v=1673091377"},{"product_id":"66141-ronstan-race-sheave-acetal-solid-bearing","title":"Ronstan Race Sheave - Acetal Solid Bearing - 50mm (1-15\/16\u0026quot;) OD","description":"\u003cb\u003eRace Sheave - Acetal Ball Bearing - 50mm(1-15\/16\") OD\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003ePrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAcetal Sheaves:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eChoice of bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSolid bearing - high strength and durability, utilizing the self-lubricating properties of Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eU.V. resistant Acetal sheaves\u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003e\u003cbr\u003eRonstan Acetal Rope, 1 15\/16\" x 11\/32\" | For sailboats. * Ronstan's sheaves utilize Acetal's self-lubricating properties to provide high strength, durability and durability.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55030\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF1759\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800129959\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537149898845,"sku":"55030","price":7.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-race-sheave-acetal-1_fbb0c961-4938-4a8a-8500-aa38a2828484.jpg?v=1673091380"},{"product_id":"66143-ronstan-race-sheave-acetal-solid-bearing","title":"Ronstan Race Sheave - Acetal Solid Bearing - 66mm (2-5\/8\u0026quot;) OD","description":"\u003cb\u003eRace Sheave - Acetal Ball Bearing - 66mm(2-5\/8\") OD\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003ePrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAcetal Sheaves:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eChoice of bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSolid bearing - high strength and durability, utilizing the self-lubricating properties of Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eU.V. resistant Acetal sheaves\u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003e\u003cbr\u003eAcetal Ball Bearings-Precision molded acetal pulleys running on acetal or Torlon ball bearings with an outer diameter of 66mm (2-5\/8 inches) provide high performance and low friction.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55032\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF1765\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800129980\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537150095453,"sku":"55032","price":11.15,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-race-sheave-acetal-1_95abe7a9-fede-4d15-a8d0-48289bc9caf4.jpg?v=1673091383"},{"product_id":"66144-ronstan-wire-block-tubular-rivet-head","title":"Ronstan Wire Block - Tubular Rivet Head w\/Removable Nylatron\u0026reg; Sheave - 45mm (1-3\/4\u0026quot;) Sheave Diameter","description":"\u003cb\u003eWire Block - Tubular Rivet Head w\/Removable Nylatron® Sheave - 45mm(1-3\/4\") Sheave Diameter\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eWire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire termination\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eFlared cheeks to minimise chafing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRemovable sheaves\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eWire blocks suit halyards, vang and backstay applications\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNylatron® sheave\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e 45mm(1-3\/4\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e 6mm(1\/4\")\u003cbr\u003e\u003cb\u003eM.W.L:\u003c\/b\u003e850kg(1,870lbs)\u003cbr\u003e\u003cb\u003eB.L.:\u003c\/b\u003e 1,700kg(3,740lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 88kg(3.1oz) \u003cbr\u003e\u003cbr\u003eA single block can use a cascaded block system to double the power of the rope block. Blocks with a pulley diameter of more than 1 inch have removable anodized aluminum pulleys with Delrin bushings...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55033\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF103\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800067466\u003cbr\u003e\n            \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537150193757,"sku":"55033","price":49.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-wire-block-tubular-1.jpg?v=1673091386"},{"product_id":"66145-ronstan-wire-block-ferrule-top-w-removable","title":"Ronstan Wire Block - Ferrule Top w\/Removable Nylontron\u0026reg; Sheave - 45mm (1-34\/\u0026quot;) Sheave Diameter","description":"\u003cb\u003eWire Block - Ferrule Top w\/Removable Nylatron® Sheave - 45mm(1-3\/4\") Sheave Diamter\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eWire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire termination\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eFlared cheeks to minimise chafing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRemovable sheaves\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eWire blocks suit halyards, vang and backstay applications\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNylatron® sheave\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e 45mm(1-3\/4\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e 6mm(1\/4\")\u003cbr\u003e\u003cb\u003eM.W.L:\u003c\/b\u003e850kg(1,870lbs)\u003cbr\u003e\u003cb\u003eB.L.:\u003c\/b\u003e 1,700kg(3,740lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 80kg(2.8oz) \u003cbr\u003e\u003cbr\u003eThe terms \"pulley\" and \"pulley\" are interchangeable. Suitable for wires from 3\/32\" to 5\/32\". These high-load wire blocks are used for slings, back supports, boom trucks and many other wires...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55034\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF104\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800054091\u003cbr\u003e\n            \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537158680669,"sku":"55034","price":46.81,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-wire-block-ferrule-1.jpg?v=1673091389"},{"product_id":"66146-ronstan-wire-block-tubular-rivet-head","title":"Ronstan Wire Block - Tubular Rivet Head w\/Nylatron\u0026reg; Sheave - 25mm (1\u0026quot;) Sheave Diameter","description":"\u003cb\u003eWire Block - Tubular Rivet Head w\/Nylatron® Sheave - 25mm Sheave Diameter\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eWire blocks have purpose designed narrow sheaves and grooves.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eWire blocks suit halyards, vang and backstay applications\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNylatron® sheave\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e 25mm(1\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e 3mm(1\/8\")\u003cbr\u003e\u003cb\u003eM.W.L:\u003c\/b\u003e450kg(990lbs)\u003cbr\u003e\u003cb\u003eB.L.:\u003c\/b\u003e 900kg(1,980lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 40kg(1.4oz) \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan wire blocks have purpose designed narrow sheaves and grooves with stainless steel cheek, clevis pin head blocks are ideal for spinnaker halyards where speed and minimum friction are important.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55035\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF418\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800087280\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537158778973,"sku":"55035","price":26.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-wire-block-tubular-1_263397df-9797-4991-bc82-328a5af83dd3.jpg?v=1673091392"},{"product_id":"66147-ronstan-wire-block-w-removable-clevis-pin-head","title":"Ronstan Wire Block w\/Removable Clevis Pin Head - Nylatron\u0026reg; Sheave - 25mm (1\u0026quot;) Sheave Diameter","description":"\u003cb\u003eWire Block w\/Removable Clevis Pin Head - Nylatron® Sheave - 25mm(1\") Sheave Diameter\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eWire blocks have purpose designed narrow sheaves and grooves.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003eRemovable clevis pin head\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eWire blocks suit halyards, vang and backstay applications\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNylatron® sheave\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e 25mm(1\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e 3mm(1\/8\")\u003cbr\u003e\u003cb\u003eM.W.L:\u003c\/b\u003e450kg(990lbs)\u003cbr\u003e\u003cb\u003eB.L.:\u003c\/b\u003e 900kg(1,980lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 40kg(1.4oz) \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan wire blocks have purpose designed narrow sheaves and grooves with stainless steel cheek, clevis pin head blocks are ideal for spinnaker halyards where speed and minimum friction are important.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55036\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF418C\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800237883\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537158877277,"sku":"55036","price":29.15,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-wire-block-w-1.jpg?v=1673091395"},{"product_id":"66148-ronstan-dinghy-wire-block-ferrule-top","title":"Ronstan Dinghy Wire Block - Ferrule Top w\/Removable Sheave - 25mm (1\u0026quot;) Sheave Diameter","description":"\u003cb\u003eDinghy Wire Block - Ferrule Top w\/Removable Nylatron® Sheave\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eWire blocks have purpose designed narrow sheaves and grooves. Removal sheave for easy fitting and without cutting the wire termination\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e Flared Cheeks to minimize chafing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRemovable Sheaves\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eWire blocks suit halyards, vang and backstay applications\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNylatron® sheave\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e 25mm(1\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e 3mm(1\/8\")\u003cbr\u003e\u003cb\u003eM.W.L:\u003c\/b\u003e450kg(990lbs)\u003cbr\u003e\u003cb\u003eB.L.:\u003c\/b\u003e 900kg(1,980lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 33kg(1.2oz)\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan wire blocks have purpose designed narrow sheaves and grooves with stainless steel cheek, clevis pin head blocks are ideal for spinnaker halyards where speed and minimum friction are important.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55037\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF468\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800044986\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537159008349,"sku":"55037","price":27.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-dinghy-wire-block-1.jpg?v=1673091398"},{"product_id":"66239-ronstan-series-30-block-single","title":"Ronstan Series 30 Block - Single - Narrow","description":"\u003cp\u003e\u003cstrong\u003eSeries 30 Block - Single - Narrow\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003c\/li\u003e\n\u003cli\u003eEconomical\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003cli\u003eHollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase\u003c\/li\u003e\n\u003cli\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSheave Ø:\u003c\/strong\u003e29mm(1-1\/8\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMax. Rope Ø:\u003c\/strong\u003e8mm(5\/16\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eM.W.L.:\u003c\/strong\u003e300kg(660lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eB. L.:\u003c\/strong\u003e900kg(1,980lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e20g(0.7oz)\u003c\/p\u003e \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan Series 29 blocks are simple, versatile and economical blocks which have many uses, Blocks are light weight, durable, and have V-jam cleats to allow fast secure cleating of control lines.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55128\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF185\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800068111\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537197576285,"sku":"55128","price":20.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-block-1.jpg?v=1673091614"},{"product_id":"66240-ronstan-series-30-fiddle-block-narrow","title":"Ronstan Series 30 Fiddle Block - Narrow w\/Tube Rivot Head","description":"\u003cp\u003e\u003cstrong\u003eSeries 30 Fiddle Block - Narrow with Tube Rivet Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003c\/li\u003e\n\u003cli\u003eEconomical\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003cli\u003eHollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase\u003c\/li\u003e\n\u003cli\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSheave Ø:\u003c\/strong\u003e29mm(1-1\/8\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMax. Rope Ø:\u003c\/strong\u003e8mm(5\/16\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eM.W.L.:\u003c\/strong\u003e300kg(660lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eB. L.:\u003c\/strong\u003e600kg(1,320lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e50g(1.8oz)\u003c\/p\u003e \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan Series 29 blocks are simple, versatile and economical blocks which have many uses, Blocks are light weight, durable, and have V-jam cleats to allow fast secure cleating of control lines.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55129\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF186\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800023233\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537197805661,"sku":"55129","price":33.86,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-fiddle-1.jpg?v=1673091619"},{"product_id":"66241-ronstan-series-30-fiddle-block-narrow","title":"Ronstan Series 30 Fiddle Block - Narrow w\/Tube Rivet Head \u0026amp; V-Jam Cleat","description":"\u003cp\u003e\u003cstrong\u003eSeries 30 Fiddle Block - Narrow with Tube Rivet Head \u0026amp; V-Jam Cleat\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003c\/li\u003e\n\u003cli\u003eEconomical\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003cli\u003eAllows fast, sure cleating of control lines\u003c\/li\u003e\n\u003cli\u003eHollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase\u003c\/li\u003e\n\u003cli\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSheave Ø:\u003c\/strong\u003e29mm(1-1\/8\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMax. Rope Ø:\u003c\/strong\u003e8mm(5\/16\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eM.W.L.:\u003c\/strong\u003e300kg(660lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eB. L.:\u003c\/strong\u003e600kg(1,320lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e60g(2.1oz)\u003c\/p\u003e \u003cbr\u003e\u003cbr\u003e\"Ronstan Series  blocks are simple, versatile and economical blocks which have many uses, Blocks are light weight, durable, and have V-jam cleats to allow fast secure cleating of control lines.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55130\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF187\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800068180\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537197903965,"sku":"55130","price":39.07,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-fiddle-1_ba5e5b36-53c4-47d0-a33b-c343bf475b14.jpg?v=1673091621"},{"product_id":"66243-ronstan-series-20-ball-bearing-block","title":"Ronstan Series 20 Ball Bearing Block - Single - Loop Top","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Single - Loop Top\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCan be fitted with a shackle in either of two planes to allow correct alignment of the block\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy Vangs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e=\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t250kg(550lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t550kg(1,210lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t16g(0.6oz) \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan Ball Bearing blocks have been conceived and engineered for the demands of competitive sailing. Used on boats of all sizes for sheet, fine tune and control line applications they utilise a highly efficient, low friction bearing systems for optimum sheeting and trimming performance.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55132\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF20101\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800255528\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537198297181,"sku":"55132","price":13.21,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-20-ball-1.jpg?v=1673091625"},{"product_id":"66244-ronstan-series-20-ball-bearing-block","title":"Ronstan Series 20 Ball Bearing Block - Single - Loop Top Becket","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Single - Loop Top Becket\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCan be fitted with a shackle in either of two planes to allow correct alignment of the block\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy Vangs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t250kg(550lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t550kg(1,210lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t18g(0.6oz) \u003cbr\u003e\u003cbr\u003eRonstan ball bearing blocks are designed and manufactured to meet the needs of sailing. For boats of various sizes, for thin plates, fine-tuning and control lines...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55133\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF20111\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800255535\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537198624861,"sku":"55133","price":16.86,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-20-ball-1_72a158e8-5248-42fe-a120-4304599c8aaf.jpg?v=1673091629"},{"product_id":"66245-ronstan-series-20-ball-bearing-block","title":"Ronstan Series 20 Ball Bearing Block - Single - Cheek","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Single - Cheek\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDouble through-bolt mounting for maximum load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy Vangs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t250kg(550lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t550kg(1,210lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t14g(0.5oz) \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan Ball Bearing blocks have been conceived and engineered for the demands of competitive sailing. Used on boats of all sizes for sheet, fine tune and control line applications they utilise a highly efficient, low friction bearing systems for optimum sheeting and trimming performance.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55134\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF20151\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800255603\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537198788701,"sku":"55134","price":18.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-20-ball-1_fd231465-2873-40c0-95f6-28b46eb9e105.jpg?v=1673091633"},{"product_id":"66247-ronstan-series-20-ball-bearing-block","title":"Ronstan Series 20 Ball Bearing Block - Single - Cheek Rivet Mount","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Single - Cheek Rivet Mount\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for screw or pop rivet mounting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy Vangs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t200kg(440lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t550kg(1,210lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t17g(0.6oz) \u003cbr\u003e\u003cbr\u003e\"Ronstan Ball Bearing blocks have been conceived and engineered for the demands of competitive sailing. Used on boats of all sizes for sheet, fine tune and control line applications they utilise a highly efficient, low friction bearing systems for optimum sheeting and trimming performance.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55136\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF20151A\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800262007\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537198887005,"sku":"55136","price":22.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-20-ball-1_fce9af5a-1420-4b29-9d69-e29884348407.jpg?v=1673091637"},{"product_id":"66249-ronstan-series-20-ball-bearing-block","title":"Ronstan Series 20 Ball Bearing Block - Swivel Hook Head","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Swivel Hook Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile swivelling hook for quick and easy attachment\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHook suits rope, stainless steel and webbing fixing points\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy vangs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eStainless steel ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUV Stabilized Acetal sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t135kg(300lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t270kg(590lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t21g(0.7oz)\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan Ball Bearing blocks have been conceived and engineered for the demands of competitive sailing. Used on boats of all sizes for sheet, fine tune and control line applications they utilise a highly efficient, low friction bearing systems for optimum sheeting and trimming performance.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55138\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF20180\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800416622\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537199149149,"sku":"55138","price":26.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-20-ball-1_9aa124d5-82b4-42cf-bc92-e45f4328a25f.jpg?v=1673091641"},{"product_id":"66251-ronstan-series-20-ball-bearing-block","title":"Ronstan Series 20 Ball Bearing Block - Double - Becket - 2-Axis Shackle Head","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Double - Becket - 2-Axis Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTwo-Way head can be fixed at 0° or 90°\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy vangs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eStainless steel ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUV Stabilized Acetal sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003ePinØ:\u003c\/b\u003e  4mm(5\/32\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t350kg(770lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t700kg(1,540lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t44g(1.6oz) \u003cbr\u003e\u003cbr\u003e\"Dual Ball Bearing block offers friction free operation for lines up to 1\\\/4\\\". Ball Bearing blocks use a two stage bearing system. Under medium loads, the Acetal ball bearings ensure minimum friction. Under heavier loads, where of the ball bearings would increase friction, the bearing on a polished stainless steel race takes over, maintaining low friction performance. The quality build allows for long life and low maintenance for the life of the block. The shackle affixes to the loop top for easy installation on to your boat and fixed orientation of lines.The becket is fixed so be sure to splice the lines in to it if that is your intent. Ball Bearing Blocks meet the high performance demands of low friction applications with a two-stage bearing system. Fits lines up to 1\\\/4\\\". Precision moulded Acetal sheaves. Loop top with affixed shackle for quick installation.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55140\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF20212\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800255566\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537200099421,"sku":"55140","price":37.33,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-20-ball-1_2c9f8a95-83a5-4e55-95f5-4d5e6297be40.jpg?v=1673091645"},{"product_id":"66253-ronstan-series-20-ball-bearing-block","title":"Ronstan Series 20 Ball Bearing Block - Triple - Becket - 2-Axis Shackle Head","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Triple - Becket - 2-Axis Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTwo-Way head can be fixed at 0° or 90°\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy vangs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eStainless steel ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUV Stabilized Acetal sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003ePinØ:\u003c\/b\u003e  4mm(5\/32\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t850kg(1,870lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t64g(2.3oz)\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\"This triple Ball Bearing block offers friction free operation for lines up to 1\\\/4\\\". Ball Bearing blocks use a two stage bearing system. Under medium loads, the Acetal ball bearings ensure minimum friction. Under heavier loads, where of the ball bearings would increase friction, the bearing on a polished stainless steel race takes over, maintaining low friction performance. The quality build allows for long life and low maintenance for the life of the block. The shackle affixes to the loop top for easy installation on to your boat and fixed orientation of lines.The becket is fixed so be sure to splice the lines in to it if that is your intent. Ball Bearing Blocks meet the high performance demands of low friction applications with a two-stage bearing system. Fits lines up to 1\\\/4\\\". Precision moulded Acetal sheaves. Loop top with affixed shackle for quick installation.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55142\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF20312\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800255580\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537203736669,"sku":"55142","price":49.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-20-ball-1_cc15c9a4-868c-429c-ac13-e92cd74cc287.jpg?v=1673091648"},{"product_id":"66254-ronstan-series-20-ball-bearing-block","title":"Ronstan Series 20 Ball Bearing Block - Triple - Becket - Cam Cleat - 2-Axis Shackle Head","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Triple - Becket - Cam Cleat - 2-Axis Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTwo-Way head can be fixed at 0° or 90°\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy vangs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eStainless steel ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUV Stabilized Acetal sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003ePinØ:\u003c\/b\u003e  4mm(5\/32\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t850kg(1,870lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t122g(4.3oz)\u003cbr\u003e\u003cbr\u003e*Line Load through cleat not to exceed 125kg(275lbs) \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan Ball Bearing blocks have been conceived and engineered for the demands of competitive sailing. Used on boats of all sizes for sheet, fine tune and control line applications they utilise a highly efficient, low friction bearing systems for optimum sheeting and trimming performance.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55143\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF20332\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800255764\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537203834973,"sku":"55143","price":96.36,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-20-ball-1_f4197161-48b9-4de0-ac64-cb4ba7794ca0.jpg?v=1673091653"},{"product_id":"66255-ronstan-series-20-ball-bearing-block","title":"Ronstan Series 20 Ball Bearing Block - Single - Exit Cover Plate","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Single - Exit Cover Plate\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\u003cli\u003eExit blocks minimise friction in lines passing through the deck or exiting masts and booms\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eUV Stabilized Acetal sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t6mm(1\/4\")\u003cbr\u003e\u003cb\u003ePinØ:\u003c\/b\u003e  4mm(5\/32\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t250kg(550lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t22g(0.8oz)\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\"Ronstan Ball Bearing blocks have been conceived and engineered for the demands of competitive sailing. Used on boats of all sizes for sheet, fine tune and control line applications they utilise a highly efficient, low friction bearing systems for optimum sheeting and trimming performance.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55144\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF20711\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800255771\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537204424797,"sku":"55144","price":34.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-20-ball-1_907d6100-f0b0-4ee7-bbc5-f6a2a57495e8.jpg?v=1673091657"},{"product_id":"66265-ronstan-race-acetal-sheave-39mm-1-1-2","title":"Ronstan Race Acetal Sheave - 39mm (1-1\/2\u0026quot;) OD","description":"\u003cb\u003eRace Acetal Sheave Solid Bearing - 39mm(1-1\/2\") OD\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003eHigh strength \u0026amp; durability, utilizing the self-lubricating properties of Acetal \u003cbr\u003e\u003cbr\u003eRace Acetal pulley solid bearing -39mm (1-1 \/ 2) OD characteristics: high strength and durability, using Acetal's self-lubricating performance: this product is brand new,...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55154\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF251\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800005178\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537205932125,"sku":"55154","price":6.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-race-acetal-sheave-1.jpg?v=1673091693"},{"product_id":"66272-ronstan-series-30-block-single","title":"Ronstan Series 30 Block - Single - Loop Top","description":"\u003cp\u003e\u003cstrong\u003eSeries 30 Block - Single - Loop Top\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003cli\u003eEconomical\u003c\/li\u003e\n\u003cli\u003eLightweight durable construction\u003c\/li\u003e\n\u003cli\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance\u003c\/li\u003e\n\u003cli\u003eHollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUV Stabilized Acetal sheave\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSheave Ø:\u003c\/strong\u003e29mm(1-1\/8\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMax. Rope Ø:\u003c\/strong\u003e8mm(5\/16\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eM.W.L.:\u003c\/strong\u003e300kg(660lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eB. L.:\u003c\/strong\u003e600kg(1,320lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e20g(0.7oz)\u003c\/p\u003e \u003cbr\u003e\u003cbr\u003eRonstan series 29 blocks are simple, versatile and economical blocks with many uses; the blocks are light in weight, sturdy and durable, and have a V-shaped splint, which can be fast and securely fastened and nailed...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55161\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF280\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800033638\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537211535453,"sku":"55161","price":12.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-block-1_761b0b79-816a-4f47-a6fc-5875352863e9.jpg?v=1673091715"},{"product_id":"66282-ronstan-series-30-ball-bearing-block","title":"Ronstan Series 30 Ball Bearing Block - Single - Loop Top","description":"\u003cb\u003eSeries 30 Ball Bearing Block - Single - Loop Top\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction 2-stage ball bearing system provides consistent performance over the full working load range\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLight weight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVersatile head fittings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCan be fitted with a shackle in either of two planes to allow correct alignment of the block\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003ePrimary lead blocks on dinghies and catamarans\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl lines on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact modified, fiber reinforced and U.V. stabilized Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load straps and head fittings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t750kg(1,650lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t28g(1.0oz)\u003cbr\u003e \u003cbr\u003e\u003cbr\u003eRonstan ball bearing blocks are designed and manufactured to meet the needs of sailing. For boats of various sizes, for thin plates, fine-tuning and control lines...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55171\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF30101\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800258260\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537214189661,"sku":"55171","price":22.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-ball-1.jpg?v=1673091757"},{"product_id":"66286-ronstan-series-30-ball-bearing-orbit-block-153","title":"Ronstan Series 30 Ball Bearing Orbit Block\u0026#153; - Stand Up Swivel","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Stand Up Swivel\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t600kg(1,320lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t33g(1.2oz)\u003cbr\u003e \u003cbr\u003e\u003cbr\u003eRonstan series 30 ball bearing track block-upright rotating RF35140. This is achieved through a fully composite reinforced polymer material and multiple connection options. Their ...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55175\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF35140\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800415045\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537214910557,"sku":"CWR-55175","price":31.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-ball-1_caa105c8-9188-4581-91e4-b7c5b7de6def.jpg?v=1673091768"},{"product_id":"66288-ronstan-series-30-ball-bearing-orbit-block-153","title":"Ronstan Series 30 Ball Bearing Orbit Block\u0026#153; - Double","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Double\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t450kg(990lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t900kg(1,980lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t50g(1.7oz)\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cbr\u003eRonstan Orbit Blocks represents the future of racing sailing hardware. As the best racer's choice in the world, they provide an out-and-out solution.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55177\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF35202\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800404971\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537215828061,"sku":"55177","price":40.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-ball-1_cc9330cb-6c99-4a93-a882-8091fde42ee2.jpg?v=1673091772"},{"product_id":"66289-ronstan-series-30-ball-bearing-orbit-block-153","title":"Ronstan Series 30 Ball Bearing Orbit Block\u0026#153; - Triple","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Triple\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t550kg(1,210lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,100kg(2,430lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t73g(2.6oz)\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan Orbit Blocks represent the future of racing sailboat hardware. The choice of the worlds best racing sailors, they offer a no-compromise solution.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55178\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF35302\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800404995\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537215991901,"sku":"55178","price":55.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-ball-1_7695d0d9-a863-4683-b72b-6b022a2da509.jpg?v=1673091775"},{"product_id":"66290-ronstan-series-30-ball-bearing-orbit-block","title":"Ronstan Series 30 Ball Bearing Orbit Block - Triple - Becket","description":"\u003cb\u003eSeries 30 Ball Bearing Orbit Block™ - Triple - Becket\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  \u003cbr\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecure, versatile and secure attachement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 5M(16')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLink: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t30mm(1-3\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t8mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t550kg(1,210lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,100kg(2,430lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t75g(2.6oz)\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cbr\u003eRonstan Orbit Blocks represents the future of racing sailing hardware. As the best racer's choice in the world, they provide an uncompromising solution.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55179\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF35312\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800405008\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537216057437,"sku":"55179","price":57.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-ball-1_c97a1999-7a03-44bf-b9ca-65168f348588.jpg?v=1673091779"},{"product_id":"66312-ronstan-series-40-all-purpose-block","title":"Ronstan Series 40 All Purpose Block - Single - Universal Head","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t71g(2.5oz) \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan All Purpose Blocks with self-lubricating Acetal polymer sheaves running on polished Stainless Steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55201\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF41100\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800242870\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537223004253,"sku":"CWR-55201","price":25.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-40-all-1.jpg?v=1673091825"},{"product_id":"66313-ronstan-series-40-all-purpose-block","title":"Ronstan Series 40 All Purpose Block - Single - Loop Top","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Loop Top\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t54g(1.9oz)\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan All Purpose Blocks with self-lubricating Acetal polymer sheaves running on polished Stainless Steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55202\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF41101\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800243556\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537223233629,"sku":"55202","price":20.91,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-40-all-1_3c789770-dc91-4bee-9e0f-eaa5929d1f34.jpg?v=1673091829"},{"product_id":"66314-ronstan-series-40-all-purpose-block","title":"Ronstan Series 40 All Purpose Block - Single - Becket - Universal Head","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Becket - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.  Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\u003cli\u003eSpare parts - RF150 Shackle, RF41010 Replacement Becket Pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t80g(2.8oz) \u003cbr\u003e\u003cbr\u003eRonstan Series 40 Multifunctional Multifunctional Monoblock with Seat | Horizontal Type For Sailing. 40 series with Baker's universal monoblock. Ronstan's 40mm plain bearing seat is sturdy and compact.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55203\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF41110\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800244010\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537223659613,"sku":"55203","price":33.71,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-40-all-1_8734a1ab-9b0a-4f48-895e-880a71cb3a87.jpg?v=1673091833"},{"product_id":"66315-ronstan-series-40-all-purpose-block","title":"Ronstan Series 40 All Purpose Block - Single - Becket - Loop Top","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Stand Up\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.  Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpare parts - RF41010 Replacement Becket Pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t61g(2.2oz) \u003cbr\u003e\u003cbr\u003eRonstan Series 40 Universal Monoblock with Beckett and Ring Head | For sailboats. 40 series multifunctional universal monoblock valve with Beckett and ring head. Ronstan's 40mm plain bearings...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55204\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF41111\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800243730\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537223888989,"sku":"55204","price":31.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-40-all-1_2438bca0-c849-45ec-b930-e7bbf6c8ef12.jpg?v=1673091836"},{"product_id":"66317-ronstan-series-40-all-purpose-block","title":"Ronstan Series 40 All Purpose Block - Single - Cheek","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Cheek\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Can be mounted on masts and booms using the curved surface adapter. Can be stacked to create a double version, but no more than 60% of the rated working load should be applied to the upper sheave.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMount with 3 x 5mm (3\/16\") fasteners (not supplied)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t66g(2.3oz)\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cbr\u003eRonstan Series 40 Multifunctional Single Cheek | For sailboats. Series 40 multifunctional single cheek. Ronstan's 40mm plain bearing seat is sturdy and compact. For...\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55206\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF41151\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800244331\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537224249437,"sku":"55206","price":36.12,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-40-all-1_bd3ad046-3d7a-45ba-82e0-6ea188dc70a9.jpg?v=1673091840"},{"product_id":"66321-ronstan-series-40-ball-bearing-block","title":"Ronstan Series 40 Ball Bearing Block - Single - Universal Head","description":"\u003cb\u003eSeries 40 Ball Bearing Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e    5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t350kg(770lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t70g(2.5oz)\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan Ball Bearing blocks have been conceived and engineered for the demands of competitive sailing. Used on boats of all sizes for sheet, fine tune and control line applications they utilise a highly efficient, low friction bearing systems for optimum sheeting and trimming performance.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55210\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF40100\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800243891\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537224413277,"sku":"55210","price":33.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-40-ball-1.jpg?v=1673091849"},{"product_id":"66322-ronstan-series-40-ball-bearing-block","title":"Ronstan Series 40 Ball Bearing Block - Single - Stand Up","description":"\u003cb\u003eSeries 40 Ball Bearing Block - Single - Stand Up\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t350kg(770lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t800kg(1,7600lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t71g(2.5oz)\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\"RonstanRonstan Ball Bearing blocks have been conceived and engineered for the demands of competitive sailing. Used on boats of all sizes for sheet, fine tune and control line applications they utilise a highly efficient, low friction bearing systems for optimum sheeting and trimming performance.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55211\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF40140\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800244379\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537224675421,"sku":"55211","price":44.56,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-40-ball-1_12ed4ec3-0640-49b5-8213-eea579a3a2dc.jpg?v=1673091855"},{"product_id":"66328-ronstan-series-45-core-block-153-single","title":"Ronstan Series 45 Core Block\u0026#153; - Single - Swivel Shackle Head","description":"\u003cb\u003eSeries 45 Core Block™ - Single - Swivel Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eCore Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eUniversal Bearing\u003c\/b\u003e\u003cbr\u003eDynamic and high static load performance\u003cbr\u003e\u003cbr\u003eThe Ronstan Universal Bearing incorporates our proven 2-stage bearing system\u003cbr\u003e\u003cbr\u003e\u003cb\u003eStage 1\u003c\/b\u003e - Under moderate loads, Acetal ball bearings ensure minimum friction.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eStage 2\u003c\/b\u003e - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance.\u003cbr\u003e\u003cbr\u003eAdditionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn't perfect. Particularly important for cheek blocks.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAlloy Cheek Plates\u003c\/b\u003e\u003cbr\u003eBlock cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings.  Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimising rope wear.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eHigh dynamic and static load capacity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEfficient 2-stage bearing system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall bearings to counteract side thrust loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eClass leading performance and sleek, contemporary styling\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDurable aluminium alloy cheek plates\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCentral hub hole can be used as a becket take-off or tie-up point\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eIdeal for mainsheet, halyard and spinnaker sheet applications on boats to 10M (33')\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVarious control line applications on larger yachts\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAlloy sheave models are available for use with wire\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: U.V. stabilized Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek body: Aluminium Alloy\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShackle, head post \u0026amp; hub: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t45mm(1-3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t12mm(1\/2\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e\t5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t700kg(1,540lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,400kg(3,090lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t104g(3.6oz) \u003cbr\u003e\u003cbr\u003e\"Ronstan Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal \u0026amp; aluminium sheave options, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55217\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF44100\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800466153\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537225592925,"sku":"55217","price":71.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-45-core-1.jpg?v=1673091884"},{"product_id":"66330-ronstan-nylatron-sheave-box-single-upright","title":"Ronstan Nylatron Sheave Box - Single Upright Lead Block","description":"\u003cb\u003eNylatron Sheave Box - Single Upright Lead Block\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eLead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.When mounted in an inverted position, are frequently used as upright leads.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003eThe external tabs can be formed to fit the spar profile before fastening\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eTypically used in dinghy spars for control lines such as outhauls\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eNylatron® sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load housing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t22mm(7\/8\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t3mm(1\/8\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e\t3mm(1\/8\")\u003cbr\u003e\u003cb\u003eFastener Ø:\u003c\/b\u003e\t5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t160kg(350lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t350kg(700lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t30g(1.1oz) \u003cbr\u003e\u003cbr\u003eA single vertical lead block lead block is a low-profile solution, suitable for leading slings or other rig sail controllers back to splints or interferences.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55219\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF453\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800000425\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537226018909,"sku":"55219","price":32.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-nylatron-sheave-box-1.jpg?v=1673091888"},{"product_id":"66331-ronstan-series-40-ratchet-orbit-block-153","title":"Ronstan Series 40 Ratchet Orbit Block\u0026#153; - Single - Auto - Swivel Shackle Head","description":"\u003cb\u003eSeries 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic Ratchet\u003c\/b\u003e\u003cbr\u003eWith automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome Ratchet Block Holding Power\u003c\/b\u003e\u003cbr\u003eQuite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. The Series 40 delivers up to 14:1 holding power, almost double that of our nearest competititor.\u003cbr\u003e\u003cbr\u003eThe unique sheave design has 8 gripping faces which directly resist loaded line movement. Traditional designs have an angled resistance to line movement.  Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSimple and Secure Attachment\u003c\/b\u003e\u003cbr\u003eThe Dyneema® Link is easily fitted and is retained securely by a moulded retainer clip. The flexible link can be left with one end attached to the block when fitting - no more lost shackle pins.\u003cbr\u003e\u003cbr\u003eThe system is compatible with Dyneema®\/Spectra® strops, webbing and carbon connection points - much more so than steel loop tops or shackles.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSmooth Easing of Sheets\u003c\/b\u003e\u003cbr\u003eWith auto models the sheet runs out smoothly and freely as soon as the ratchet mechanism disengages. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eLow Profile Stand-Up Kit Allows  0™ or 90™ Alignment\u003c\/b\u003e\u003cbr\u003eStand-up kits feature a clatter-free rubber boot.  You can attach the Dyneema® link so that the block is aligned with the stand-up base or across it.  It's a neat low-profile solution which allows full articulation.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eUp to 14:1 holding power - highest available!\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFully Automatic load sensing ratchet engagemen\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlmited block rotation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy mainsheet systems\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet fine tune systems on sportsboats \u0026amp; small keel boats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet systems on sportsboats using RF7 mainsheet swivel cleat unit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker and job sheets on dinghies - especially modern asymmetric classes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: Hard anodised Aluminium\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    9mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t175kg(385lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t500kg(1,100lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t44g(1.5oz) \u003cbr\u003e\u003cbr\u003e\"Automatic ratchet with automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. Awesome ratchet block holding power quite simply, ronstan ratchet orbit blocks have the highest holding power available. The sophisticated nc-machined sheave features generation 2 of our sheave cross-hole geometry. The series 40 delivers up to 14:1 holding power, almost double that of our nearest competititor. The unique sheave design has 8 gripping faces which directly resist loaded line movement. Traditional designs have an angled resistance to line movement. Our generation 2 design has straight resistance faces which both distribute the load and minimise rope wear.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55220\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF46100\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800459513\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537226313821,"sku":"CWR-55220","price":77.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-40-ratchet-1.jpg?v=1673091892"},{"product_id":"66332-ronstan-series-30-utility-block-single","title":"Ronstan Series 30 Utility Block - Single - Ferrule Eye Head","description":"\u003cp\u003e\u003cstrong\u003eSeries 30 Utility Block - Single - Ferrule Eye Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003c\/li\u003e\n\u003cli\u003eEconomical\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters, etc on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSheave Ø:\u003c\/strong\u003e29mm(1-1\/8\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMax. Rope Ø:\u003c\/strong\u003e 10mm(3\/8\")\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eM.W.L.:\u003c\/strong\u003e350kg(770lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eB. L.:\u003c\/strong\u003e500kg(1,100lbs)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e40g(1.4oz)\u003c\/p\u003e \u003cbr\u003e\u003cbr\u003eThe 29 series utility block-ferrule, stainless steel cheeks and acetal pulleys ensure a long service life and almost no maintenance.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55221\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF469\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800051731\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537226412125,"sku":"55221","price":24.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-30-utility-1.jpg?v=1673091895"},{"product_id":"66343-ronstan-swivel-cleat-base","title":"Ronstan Swivel Cleat \u0026 Base","description":"\u003cb\u003eSwivel Cleat \u0026amp; Base\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eSwivel cleat bases permit easy cleating and releasing from any angle.Sheave can be relocated to allow the control line to feed from below\u003cbr\u003eComes complete with a 28mm(1-1\/4\") ball bearing sheave, small 'T-Cleat and the 'Fast Track' fairlead.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eTypically fitted to dinghy and catamaran spars for halyard, cunningham or outhaul control.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterial:\u003c\/b\u003e\u003cbr\u003eFiber reinforced Nylon body\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eRope Ø:\u003c\/b\u003e    2 - 8mm(3\/32\" - 5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t150kg(330lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t100g(3.5oz) \u003cbr\u003e\u003cbr\u003eThe pulley can be repositioned to allow the control line to feed from below. Equipped with 28 mm (1-1 \/ 4 inch) ball bearing pulleys, with small \"T-shaped splints\" and \"fast track\" fairleads.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55232\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF5\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800145829\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537228443741,"sku":"55232","price":73.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-swivel-cleat-base-1.jpg?v=1673091940"},{"product_id":"66358-ronstan-series-50-high-load-block","title":"Ronstan Series 50 High Load Block - Single - Universal Head","description":"\u003cb\u003eSeries 50 High Load Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eIdeal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for both rope or wire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyards and other primary applications on boats up to 10M(33')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eNylatron® sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t50mm(2\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    12mm(1\/2\")\u003cbr\u003e\u003cb\u003eMax. Cable Ø:\u003c\/b\u003e5mm(3\/16\")\u003cbr\u003e\u003cb\u003eMax. Pin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t800kg(1,760lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,500kg(3,310lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t117g(4.1oz) \u003cbr\u003e\u003cbr\u003eThe 50 series high-load block-single-head-universal head is ideal for high-load applications. Wear-resistant pulley material, lightweight,\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55247\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF50100HL\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800241453\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537237127261,"sku":"55247","price":70.03,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-50-high-1.jpg?v=1673092000"},{"product_id":"66364-ronstan-series-50-all-purpose-block","title":"Ronstan Series 50 All Purpose Block - Single - Universal Head","description":"\u003cb\u003eSeries 50 All Purpose Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eMainsheet and halyard applications, vang and spinnaker control lines on boats to  10M(33')\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eNylatron® sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t50mm(2\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    12mm(1\/2\")\u003cbr\u003e\u003cb\u003eMax. Pin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t750kg(1,650lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,500kg(3,310lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t118g(4.1oz)\u003cbr\u003e \u003cbr\u003e\u003cbr\u003eThe universal (AP) block is a good solution. The fixed universal lock can be fixed in any one of the two planes, and can also be freely rotated as required.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55253\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF51100\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800241101\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537241976925,"sku":"CWR-55253","price":36.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-50-all-1.jpg?v=1673092020"},{"product_id":"66366-ronstan-series-50-all-purpose-block","title":"Ronstan Series 50 All Purpose Block - Single - Becket - Universal Head","description":"\u003cb\u003eSeries 50 All Purpose Block - Single - Becket - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eMainsheet and halyard applications, vang and spinnaker control lines on boats to  10M(33')\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eNylatron® sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t50mm(2\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    12mm(1\/2\")\u003cbr\u003e\u003cb\u003eMax. Pin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t750kg(1,650lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,500kg(3,310lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t118g(4.1oz)\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\"  Load ratings for these pulleys are exceptionally high for their size, starting at 1650lb for the All Purpose single. UV stabilized acetal sheaves provide bearing performance on a polished stainless steel race that performs equally well with dynamic and static loads, to provide maximum durability and a long service life. Becket pins are removable so lines can be spliced prior to fitting, and are ingeniously locked into position without the use of clevis pins, split rings or tools.  1650 lbs maximum working load. 3310 lbs breaking load. 2\\\" sheave diameter. 1\\\/2\\\" maximum rope. 3\\\/16\\\" pin diameter. Bearing type: plain bearing.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55255\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF51110\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800241088\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537242075229,"sku":"55255","price":55.33,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-50-all-1_8156e162-8208-4b19-a9cf-a89afd650403.jpg?v=1673092025"},{"product_id":"66368-ronstan-series-55-ratchet-orbit-block-153","title":"Ronstan Series 55 Ratchet Orbit Block\u0026#153; - Single - Swivel Head - Auto \u0026 Manual","description":"\u003cb\u003eSeries 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto \u0026amp; Manual\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic Ratchet Block\u003c\/b\u003e\u003cbr\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cb\u003eAwesome Ratchet Block Holding Power\u003c\/b\u003e\u003cbr\u003eQuite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation.\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points.\u003c\/li\u003e\n\u003cli\u003eAutomatic \u0026amp; manual ratchet block\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8M(26')\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8M(26')\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on sportsboats and small keel boats (lateral lead blocks)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: Hard anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Aceetal\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003cli\u003eHead fitting: grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t55mm(2\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    10mm(1\/2\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t250kg(550lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t650kg(1,430lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t82g(2.9oz) \u003cbr\u003e\u003cbr\u003e\"RonstanPerfect for spinnaker sheet turning blocks. This Ronstan block is free wheeling at low wind velocity. As the wind velocity increases the pressure on the sheave automatically engages the ratchet. The sheet rope is never trapped in the sheave and can slide out the same as any other ratchet block without first pulling in and then releasing. 55mm sheave.\"\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55257\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF56100\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800440375\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537243713629,"sku":"55257","price":93.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-55-ratchet-1.jpg?v=1673092028"},{"product_id":"66369-ronstan-series-25-utility-block-single","title":"Ronstan Series 25 Utility Block - Single - Loop Head","description":"\u003cb\u003eSeries 25 Utility Block™ - Single - Loop Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEconomical\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters, etc on larger boats\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 Stainless Steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t25mm(1\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    6mm(1\/4\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t600kg(1,320lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t15g(0.5oz) \u003cbr\u003e\u003cbr\u003eThe 25 series multifunctional block-ring head stainless steel cheeks and acetal pulleys ensure a long service life and almost no maintenance.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55258\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF571\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800011070\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537243877469,"sku":"55258","price":13.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-25-utility-1.jpg?v=1673092031"},{"product_id":"66370-ronstan-series-25-utility-block-single","title":"Ronstan Series 25 Utility Block - Single - Swivel Shackle Head","description":"\u003cb\u003eSeries 25 Utility Block™ - Single - Swivel Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLightweight durable construction\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEconomical\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaintenance free\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters, etc on larger boats\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 Stainless Steel cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t25mm(1\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    6mm(1\/4\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 4mm(5\/32\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t150kg(330lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t300kg(660lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t20g(0.7oz) \u003cbr\u003e\u003cbr\u003eThe 25 series multifunctional block-rotating shackle head stainless steel cheeks and acetal pulleys ensure a long service life and almost no maintenance.\n\n            \u003cbr\u003e\n            \u003cb\u003eSKU:\u003c\/b\u003e NVN-55259\u003cbr\u003e\n            \u003cb\u003eMPN:\u003c\/b\u003e RF573\u003cbr\u003e\n            \u003cb\u003eUPC:\u003c\/b\u003e 9316800003877\u003cbr\u003e\n            ","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":32537244172381,"sku":"55259","price":21.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/products\/ronstan-series-25-utility-1_e5ce3cb1-df07-4aab-af6b-836a6959bb62.jpg?v=1673092035"}],"url":"https:\/\/nvnmarine.com\/collections\/ronstan-products-blocks.oembed?page=5","provider":"NVN Marine","version":"1.0","type":"link"}