4 in, Sheave Inside Dia.
Sheave, Wire Rope, 5/16 in Max Cable Size, 1,700 lb Max Load, Zinc Plated None, Sheave Width 21/32 in, Bearing Type Bearingless, Block Material 316 Stainless Steel, Sheave Material Steel, Length 4 in, Width 4 in, Finish Zinc Plated, Standards ASME B30.26. 7/8 in, Eye Hook Inside Dia. Cable Size 5/16 in, Rope Diameter 5/16 in, Working Load Limit 1,700 lb, Sheave Outside Dia.