Harken 76mm Big Boat Sheave 500

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 tocarry high radial loads and carbon-black Delrin balls to support sideloads and provide UV protection.