Big Boat sheaves are available for special applications
as well as for replacement sheaves in Big Boat blocks.
Made of Hardkote-anodized, Teflon® impregnated
6061-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.
Use for:
Mainsheets, Spinnaker sheets, Afterguy/foreguy and Footblocks.
Part Number: 640
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We do our best every day to ensure that our prices are the
best you can find. If within 30 days you find a better price,
we’ll refund the difference as a store credit. 
