Harken 4 in. Halyard Sheave

Harken 4 in. Halyard Sheave

Product Details

    Tech Info

    Product Description

    Harken Narrow high load sheaves in mastheads improve sail handling, speed sail changes, and allow the use of smaller, lighter halyard winches. Used in steering systems, these sheaves return ''feel'' to wheel-steered boats.

    Sheaves combine sideload-carrying balls with a Teflon® composite bushing for radial loads. These durable sheaves are made of 6061-T6 aluminum and are well-suited for masthead and steering installations.

    Installation requires clamping or securing inner race.

    Use for:
    Masthead/halyard sheaves and Steering systems.

    Part Number: 692

    Imperial Metric
    Sheave Dia. 4" 102 mm
    Width 3/4" 19 mm
    Weight 8 oz 227 gr
    Center Pin Dia. 1/2" 12.70 mm
    Max Line Dia. 7/16" 12 mm
    Max Wire Dia. 5/16" 8 mm
    Maximum Working Load 8250 lbs 3742 kg
    Breaking Load * 16500 lbs 7484 kg
    * Based on use of solid 304 stainless shafts.