Description
Harken 57mm-125mm Black Magic Air Loop Blocks are a top favourite 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 centre cage keeps Torlon® roller bearings separated and parallel to reduce friction. The sheave centre carries primary load, allowing a smaller, lighter weight block. The soft-attachment Loop block has a removable dead-end post for attachment to a padeye. Lashings can also be used.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
| Sku | Name | Sheave Ø mm (in) | Length mm (in) | Width mm (in) | Weight g (oz) | Maximum line Ø mm (in) | Maximum working load kg (lb) | Breaking load kg (lb) |
|---|---|---|---|---|---|---|---|---|
| 3214 | 57 mm Black Magic Air Aluminium Loop Block | 57 (2 1/4) | 76 (3) | 92 (3.23) | 12 (7/16) | 1134 (2500) | 2268 (5000) | |
| 3230 | 75 mm Black Magic Air Aluminium Loop Block | 75 (2 15/16) | 100 (3 15/16) | 209 (7.36) | 14 (9/16) | 2268 (5000) | 4536 (10000) | |
| 3245 | 100 mm Black Magic Air Aluminium Loop Block | 100 (3 15/16) | 128 (5 1/16) | 371 (13.09) | 16 (5/8) | 3402 (7500) | 6804 (15000) | |
| 3255 | 125 mm Black Magic Air Aluminium Loop Block | 125 (4 15/16) | 163 (6) | 127 (5) | 674 (23.78) | 19 (3/4) | 4990 (11000) | 9979 (22000) |
