Description
Harken 75mm Aluminum Standup Block
Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action. Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Technical Description
| Sheave Ø (mm) | 75 mm |
| Sheave Ø (in) | 2 15/16 in |
| Length (mm) | 151 mm |
| Length (in) | 5 15/16 in |
| Weight (g) | 442 g |
| Weight (oz) | 15.6 oz |
| Maximum line Ø (mm) | 14 mm |
| Maximum line Ø (in) | 9/16 in |
| Maximum working load (kg) | 2268 kg |
| Maximum working load (lb) | 5000 lb |
| Breaking load (kg) | 4536 kg |
| Breaking load (lb) | 10000 lb |
| Includes | Includes padeye. Uses hole spacing and base dimensions of 627 padeye. Maximum working load decreases at varying angles. |
| A (mm) | 75 mm |
| A (in) | 2 15/16 in |
| B (mm) | 72 mm |
| B (in) | 2 13/16 in |
| C (mm) | 43 mm |
| C (in) | 1 11/16 in |






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