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harken-603

Harken 76 mm Wide Big Boat Sheave

Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of hardcoat-anodized, PTFE-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.

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 L.L.C.

Specifications

  • Breaking load (kg) 4490
  • Center pin Ø (mm) 10
  • Fasteners (mm) 10
  • Maximum line Ø (mm) 18
  • Maximum working load (kg) 2245
  • Sheave Ø (mm) 76
  • Weight (g) 284

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