Description
Harken 125mm Aluminum Loop 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: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon roller bearings separated and parallel to reduce friction. The sheave center carries primary load, allowing a smaller, lighter weight block. The soft-attachment Loop block has a removable deadend post for attachment to a padeye. Lashings can also be used. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Technical Description
| Sheave Ø (mm) | 125 mm |
| Sheave Ø (in) | 4 15/16 in |
| Length (mm) | 163 mm |
| Length (in) | 6 in |
| Width (mm) | 127 mm |
| Width (in) | 5 in |
| Weight (g) | 674 g |
| Weight (oz) | 23.78 oz |
| Maximum line Ø (mm) | 19 mm |
| Maximum line Ø (in) | 3/4 in |
| Maximum working load (kg) | 4990 kg |
| Maximum working load (lb) | 11000 lb |
| Breaking load (kg) | 9979 kg |
| Breaking load (lb) | 22000 lb |
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