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Ronstan Series 25 Ball Bearing Orbit Block™ - Lashing

SKU: 110654 - UPC: RF28109 - MPN: RF28109
$16.02 $18.85 ( / )

Available Stock : 2

Series 25 Ball Bearing Orbit Block™ - LashingSingle sheave ball bearing block with becket and lashing head.The Series 25 Ball Bearing Orbit Blocks™ deliver superior strength, reduced weight, and exceptional performance for high-demand dinghy and small boat applications.Designed with competitive sailors and performance boats in mind, these compact 25mm blocks...
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Ronstan Series 25 Ball Bearing Orbit Block™ - Lashing Product Description

Series 25 Ball Bearing Orbit Block™ - Lashing

Single sheave ball bearing block with becket and lashing head.

The Series 25 Ball Bearing Orbit Blocks™ deliver superior strength, reduced weight, and exceptional performance for high-demand dinghy and small boat applications.

Designed with competitive sailors and performance boats in mind, these compact 25mm blocks are engineered to achieve the highest possible strength-to-weight ratio. Featuring Ronstan’s renowned high-compression strength acetal bearing system, the Series 25 BB Orbit Blocks are a lightweight yet durable solution, ideal for control line systems such as mainsheet and spinnaker sheet turning blocks, cunninghams, and cascading vangs on dinghies up to 4 metres.

Each block has a stainless steel hub for versatile lashing attachments and through-sheave becket functionality, making them adaptable to a wide range of rigging setups. The hub accommodates up to 4mm (5/32") lashing and ensures maximum efficiency without compromising reliability.

Features:

  • 2-stage ball bearing system.
  • Suits up to 8mm (5/16”) lines.
  • Hollow hub for becket take-off.
  • Lashing blocks suit up to 4mm (5/32”) lashing.

Specifications:

  • Max. Rope diameter (in): 5/16
  • Sheave diameter (in): 1
  • B.L. (lb): 1650
  • Weight (oz): 0.5

Applications:

  • Mainsheet and spinnaker sheet turning blocks on dinghies to 4m (13ft). 
  • Control lines.
  • Cascading vangs.
  • Leech lines & cunninghams.

Materials:

  • BB Sheave and balls: High compression strength acetal.
  • Frame/cheeks: Toughened, glass-fiber-reinforced nylon.




Save $2 when you buy the Ronstan Series 25 Ball Bearing Orbit Block™ - Lashing for only $16 from NVN Marine! Same day shipping before 3pm.

Ronstan Series 25 Ball Bearing Orbit Block™ - Lashing Technical Specifications

Type: 

Sailing | Blocks

Vendor: 

Ronstan

Weight: 

0.02 lb

Ronstan Series 25 Ball Bearing Orbit Block™ - Lashing User Reviews

Ronstan Series 25 Ball Bearing Orbit Block™ - Lashing Shipping & Return

Shipping Weight: 

0.02 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 25 Ball Bearing Orbit Block™ - Lashing

$16.02 $18.85 ( / )