Ronstan Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head

SKU: 70625 - UPC: 9316800447473 - MPN: RF45140
$31.99 $51.87 ( / )

Available Stock : 3

  • Super lightweight
  • Low friction two-stage orbital ball bearing system
  • The highest workload in its class
  • Small and compact
  • High-performance cutting
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Ronstan Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head Product Description

Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head

Features:

  • Ultra Lightweight
  • Low friction 2-stage Orbital ball bearing system
  • Highest working load in its class
  • Low profile and compact
  • High performance cleating
  • Swivel shackle head for unlimited block rotation -grade 316 stainless steel.
  • Stainless steel shackle head for ultimate durability with harsh fixing points.

Lightweight

Kilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub.

Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.

Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.

 Highest Working Load In It's Class

The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.

The floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized.

Recommended fasteners - 2 x 4mm (5/32") countersunk head screws

Applications:

  • Mainsheet systems on spinnaker sheet on dinghies to 5m (16ft)
  • Spinnaker sheets on dinghies, sportsboats and small keel boats to 5m (16ft)
  • Halyard, vang and backstay applications on boats to 8m (26ft)
  • Control line applications on larger yachts

Materials:

  • Ball Bearings - High compression strength carbon black Acetal.
  • Stage 2 Bearing - Glass fiber reinforced, MoS2 impregnated Nylon
  • Frame/Cheeks - Toughened, glass fiber reinforced Nylon
  • Sheave - Carbon fiber reinforced, PTFE impregnated Nylon


RonstanRonstan Orbit Blocks represents the future of racing sailing hardware. As the best racer's choice in the world, they provide an uncompromising solution.

Save $19 when you buy the Ronstan Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head for only $31 from NVN Marine! Same day shipping before 3pm.

Ronstan Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head Videos

Ronstan Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head Technical Specifications

Type: 

Sailing | Blocks

Vendor: 

Ronstan

Weight: 

0.2 lb

Ronstan Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head User Reviews

Ronstan Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head Shipping & Return

Shipping Weight: 

0.2 lb

Box Sizes: 

1.00 (h) x 2.00 (w) x 5.00 (l)

Cubic Feet: 

10.0

Returnable: 

Yes

USPS First Class: 

Yes

For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.

Ronstan Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head

$31.99 $51.87 ( / )