Harken Big Boat Sheaves

Harken Big Boat Sheaves
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

  • Foot Blocks

  • Harken 3" Sheave
    Regular price: $216.25
    Our Price : $190.99
    Harken 4.5" Sheave
    Regular price: $530.35
    Our Price : $466.99
    Harken 5.5" Sheave
    Regular price: $686.20
    Our Price : $603.99
    Harken 7" Sheave
    Regular price: $1,121.45
    Our Price : $986.99
    Harken 4" Sheave
    Regular price: $332.65
    Our Price : $292.99
    Harken 3" Wide Sheave
    Regular price: $354.80
    Our Price : $311.99
    Harken 4.5" Wide Sheave
    Regular price: $634.25
    Our Price : $557.99
    Harken 2.5" Wide Sheave
    Regular price: $239.30
    Our Price : $210.99