Description
Series 25 Ball Bearing Orbit Block™ Becket & Swivel ShackleSingle sheave ball bearing block with becket hub and swivel shackle head. Series 25 Ball Bearing Orbit Blocks™, delivering superior strength, reduced weight, and exceptional performance for highdemand 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 strengthtoweight 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 meters.Each block has a stainless steel hub for versatile lashing attachments and throughsheave 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:2stage ball bearing system.Suits up to 8mm (5/16”) lines.Hollow hub for becket takeoff.Lashing blocks suit up to 4mm (5/32”) lashing.Specifications:Max. Rope diameter (in): 5/16M.W.L. (lb): 500Sheave diameter (in): 1B.L. (lb): 990Weight (oz): 0.6Applications:Mainsheet and spinnaker sheet turning blocks on dinghies to 4m (13ft).Control lines.Cascading vangs.Leech lines & cunninghams.Materials:Frame/cheeks: Toughened, glass fibre reinforced nylon. BB Sheave and balls: high compression strength acetal.