Description
Harken 57mm-150mm Black Magic Air Stand-up 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.
Side-plates and sheaves Hard Lube anodised for maximum UV protection and a smooth surface. Centre cage keeps Torlon® roller bearings separated and parallel to reduce friction.
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) | Fasteners mm (in) | A mm (in) | B mm (in) | C mm (in) | Includes | Footnote |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3227 | 57 mm Black Magic Air Aluminium Stand-up Block | 57 (2 1/4) | 114 (4 1/2) | 200 (7.04) | 12 (7/16) | 1134 (2500) | 2268 (5000) | 6 (1/4) | 57 (2 7/32) | 56 (2 3/16) | 32 (1 1/4) | Padeye | Fastener circle mm (in): 37 (1 15/32) | |
| 3244 | 75 mm Black Magic Air Aluminium Stand-up Block | 75 (2 15/16) | 151 (5 15/16) | 442 (15.6) | 14 (9/16) | 2268 (5000) | 4536 (10000) | 75 (2 15/16) | 72 (2 13/16) | 43 (1 11/16) | Includes padeye. Uses hole spacing and base dimensions of 627 padeye. Maximum working load decreases at varying angles. | Uses hole spacing and base dimensions of 627 padeye. Maximum working load decreases at varying angles. | ||
| 3254 | 100 mm Black Magic Air Aluminium Stand-up Block | 100 (3 15/16) | 195 (7 11/16) | 884 (31.18) | 16 (5/8) | 3402 (7500) | 6804 (15000) | 93 (3 21/32) | 97 (3 27/32) | 59 (2 5/16) | Includes padeye. Uses hole spacing and base dimensions of 648 padeye. | |||
| 3261 | 125 mm Black Magic Air Aluminium Stand-up Block | 125 (4 15/16) | 230 (9 1/16) | 127.5 (5 1/32) | 1268 (44.72) | 19 (3/4) | 4990 (11000) | 9979 (22000) | 93 (3 21/32) | 106 (4 3/16) | 57 (2 1/4) | Includes padeye. Uses hole spacing and base dimensions of 648 padeye. Maximum working load decreases at varying angles. | ||
| 3266 | 150 mm Black Magic Air Aluminium Stand-up Block | 150 (5 15/16) | 283 (11 1/8) | 153 (6 1/32) | 2419 (85.34) | 25 (1) | 6804 (15000) | 13608 (30000) | 95 (3 3/4) | 132 (5 3/16) | 92 (3 5/8) | Includes padeye. Uses hole spacing and base dimensions of 629 padeye. Maximum working load decreases at varying angles. | Uses hole spacing and base dimensions of 629 padeye. Maximum working load decreases at varying angles. |
