Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of hardcoat-anodized, PTFE-impregnated 6061-T6 aluminum, sheaves feature Torlon® rollers to carry high radial loads and carbon-black Delrin® balls to support sideloads and provide UV protection. Delrin® is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates Torlon is a registered trademark of Solvay Advanced Polymers L.L.C. Product Specifications Sheave Ø (mm) 114 mm Sheave Ø (in) 4 1/2 in Width (mm) 25 mm Width (in) 1 in Weight (g) 454 g Weight (oz) 16 oz Center pin Ø (mm) 19.1 mm Center pin Ø (in) 3/4 in Fasteners (mm) 10 mm Fasteners (in) 3/8 in Fastener circle (mm) 35 mm Fastener circle (in) 1 3/8 in Maximum line Ø (mm) 18 mm Maximum line Ø (in) 3/4 in Maximum working load (kg) 3401 kg Maximum working load (lb) 7500 lb Breaking load (kg) 6803 kg Breaking load (lb) 15000 lb
