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 mmSheave Ø (in)4 15/16 inLength (mm)240 mmLength (in)9 1/2 inWidth (mm)183.5 mmWidth (in)7 7/32 inWeight (g)950 gWeight (oz)33.52 ozMaximum line Ø (mm)19 mmMaximum line Ø (in)3/4 inMaximum working load (kg)4990 kgMaximum working load (lb)11000 lbBreaking load (kg)9979 kgBreaking load (lb)22000 lbClevis pin Ø (mm)19 mmClevis pin Ø (in)3/4 in