Allen 40mm Dynamic Single Swivel Block With Becket – A20401B
New for 2023. 40mm dynamic blocks are perfect for use on main, jib and spinnaker sheets on dinghies and keelboat control lines. Made from high-strength, lightweight glass-loaded nylon and featuring Allen’s dynamic bearing technology for a high-performance block suitable for keelboats and dinghies.
Key Features we love
- Bearings – Dynamic blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. The ball bearings are caged for further friction reduction. These features provide a superior load-carrying ability and longevity when compared to other bearing systems.
- Swivel Head – Featuring a 360-degree swivel head with a 4mm shackle. The shackle is load rated higher than the block, so although it might look small, it’s plenty strong enough!
- Becket – This block has a specific becket (tying) moulding. The becket allows you to make a purchase system. Ideal for mainsheet, cunningham, outhaul, and vang controls.
Specifications
- Breaking Load – 780kgs
- Length – 98mm
- Max Rope Diameter – 10mm
- Shackle Pin Diameter – 4mm
- Max Working Load – 240kgs
- Weight – 58grams