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Harken Big Boat are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of Hard Lube-anodized 661-T6 aluminum, sheaves feature Torlon® rollers to carry high radial loads and carbon-black Delrin® balls to support sideloads and provide UV protection. Select sheaves based on load-carrying capability.
Installation requires clamping or securing inner race.
MAURIPRO Sailing; your direct access to shop for Harken Big Boat. Chat with us regarding any sailboat equipment inquiries.