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HARKEN Big Boat Sheave

Model # 6580518Mfg # 500


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In stock online.

Product Description

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:
Spinnaker sheets

  • Sheave Dia.: 3"
  • Width: 7/8"
  • Center Hole Dia.: 3/8"
  • Max. Working Load: 4950lb.
  • Breaking Load: 9900lb.


Big Boat Sheave

Max Line Diameter N/A
Type Spare Sheave

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