Harken 4" Sheave

Harken 4" Sheave
Item# 550
Regular Price: $316.80
Sale Price: $278.99

Product Description

Harken 4" Sheave

Big Boat sheaves are available for special applicationsas well as for replacement sheaves in Big Boat blocks.Made of hardcoat-anodized, PTFE-impregnated6061-T6 aluminum, sheaves feature Torlon® rollers tocarry high radial loads and carbon-black Delrin® ballsto support sideloads and provide UV protection.

Delrin® is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.

Torlon® is a registered trademark of Solvay Advanced Polymers.


  • Sheave Ø: 4 in (102 mm)

  • Width: 7/8 in (22 mm)

  • Weight: 10 oz (284 g)

  • Center pin Ø: 3/8 in (10mm)

  • Fasteners: 3/8 in (10mm)

  • Maximum line Ø: 9/16 in (14mm)

  • Maximum working load: 4950 lb (2245 kg)

  • Breaking load: 9900 lb (4490 kg)