Description
Harken 100mm Aluminum Double Block Swivel
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. Shackle blocks lock in two directions or swivel to keep line from twisting. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Technical Description
| Sheave Ø (mm) | 100 mm |
| Sheave Ø (in) | 3 15/16 in |
| Length (mm) | 227 mm |
| Length (in) | 8 15/16 in |
| Weight (g) | 1284 g |
| Weight (oz) | 45.28 oz |
| Shackle pin Ø (mm) | 12 mm |
| Shackle pin Ø (in) | 1/2 in |
| Maximum line Ø (mm) | 16 mm |
| Maximum line Ø (in) | 5/8 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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