The Barton Size 3 45mm plain bearing double swivel block with becket is a compact sailing pulley designed to provide strong reliable purchase for dinghies dayboats and lightweight cruisers while keeping weight low.

When you need dependable rigging for mainsheet vangs or lead blocks the challenge is balancing strength durability and low maintenance. This block addresses that by combining a stainless steel frame with 30% glass-fibre filled nylon cheeks and Acetal sheaves so your lines run smoothly and components resist saltwater corrosion.

• 45mm Acetal sheave (45 x 13mm) sized for up to 10mm (3/8") rope
• Double swivel sheaves plus becket for versatile purchase configurations
• Rated SWL 400kg and break load 800kg for predictable load handling
• Lightweight construction at 143 g reduces weight aloft on small boats
• Stainless steel frame and engineered plastics for corrosion resistance and low maintenance

Compared to ball-bearing blocks this plain-bearing unit is simpler to service and better suited where compact strength and durability matter more than maximum rolling efficiency. Use it as a mainsheet block vang or lead block in compact purchase systems on small craft.

Specifications: Weight 143 g Dimensions 118 x 46 x 47 mm Sheave 45mm x 13mm Max rope 10mm SWL 400kg Break load 800kg Manufacturer part N03231. Learn more today to confirm compatibility with your rigging.