Runners are used on running backstays of offshore boats to adjust mast bend for different wind conditions. Integrated sideplate bails and recessed cotter key help produce a smooth design that wont snag lifelines. Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C. Sheave Ø (mm)125 mm Sheave Ø (in)4 15/16 in Length (mm)240 mm Length (in)9 1/2 in Width (mm)183.5 mm Width (in)7 7/32 in Weight (g)950 g Weight (oz)33.52 oz Maximum line Ø (mm)19 mm Maximum line Ø (in)3/4 in Maximum working load (kg)4990 kg Maximum working load (lb)11000 lb Breaking load (kg)9979 kg Breaking load (lb)22000 lb Clevis pin Ø (mm)19 mm Clevis pin Ø (in)3/4 in