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Harken Sheaves are designed for sailors to use in custom applications.
Big Boat and high-load sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks.
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.
Harken High Load & Steering are offered as replacement parts or for use in special applications. Their bearing system combines sideload-carrying balls with a PTFE composite bushing to carry radial loads. While not as free-rolling as the standard Harken® ball/roller bearing system, this compact bearing system is extremely durable and perfect for carrying high loads in a restricted diameter.
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