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: $199.95
    Sale Price : $175.99
    Harken 4.5" Sheave
    Regular price: $490.40
    Sale Price : $431.99
    Harken 5.5" Sheave
    Regular price: $634.45
    Sale Price : $558.99
    Harken 7" Sheave
    Regular price: $1,036.95
    Sale Price : $912.99
    Harken 4" Sheave
    Regular price: $307.55
    Sale Price : $270.99
    Harken 3" Wide Sheave
    Regular price: $328.05
    Sale Price : $288.99
    Harken 4.5" Wide Sheave
    Regular price: $586.45
    Sale Price : $515.99
    Harken 2.5" Wide Sheave
    Regular price: $221.25
    Sale Price : $194.99