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 2.5" Wide Sheave
    Regular Price: $227.90
    Sale Price: $200.99
    Harken 3" Wide Sheave
    Regular Price: $337.90
    Sale Price: $297.99
    Harken 4.5" Wide Sheave
    Regular Price: $604.05
    Sale Price: $531.99
    Harken 3" Sheave
    Regular Price: $205.95
    Sale Price: $180.99
    Harken 4" Sheave
    Regular Price: $316.80
    Sale Price: $278.99
    Harken 4.5" Sheave
    Regular Price: $505.10
    Sale Price: $444.99
    Harken 5.5" Sheave
    Regular Price: $653.50
    Sale Price: $574.99
    Harken 7" Sheave
    Regular Price: $1,068.05
    Sale Price: $939.99