Description
Harken 178mm Deck 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.
Technical Description
| Sheave Ø (mm) | 178 mm |
| Sheave Ø (in) | 7 in |
| Width (mm) | 29 mm |
| Width (in) | 1 1/8 in |
| Weight (g) | 1280 g |
| Weight (oz) | 45 oz |
| Maximum line Ø (mm) | 22 mm |
| Maximum line Ø (in) | 7/8 in |
| Fasteners (mm) | 12 mm |
| Fasteners (in) | 1/2 in |
| Fasteners circle (mm) | 64 mm |
| Fasteners circle (in) | 2 1/2 in |
| Center pin Ø (mm) | 38 mm |
| Center pin Ø (in) | 1 1/2 in |
| Maximum working load (kg) | 6349 kg |
| Maximum working load (lb) | 14000 lb |
| Breaking load (kg) | 12698 kg |
| Breaking load (lb) | 28000 lb |
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