Description
Harken 57-125mm Black Magic Air Double Footblocks are used to redirect lines on the deck.
- Foot-blocks with lock-offs temporarily secure sheets.
- Either metric or imperial flathead fasteners may be used for mounting and are not exposed.
- 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.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
| Sku | Name | Sheave Ø mm (in) | Length mm (in) | Weight g (oz) | Maximum line Ø mm (in) | Maximum working load kg (lb) | Breaking load kg (lb) | Height mm (in) | Number of fasteners | Fasteners mm (in) | A mm (in) | B mm (in) | C mm (in) | D mm (in) | E mm (in) | F mm (in) | G mm (in) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3222 | 57 mm Black Magic Air Aluminium Double Footblock | 57 (2 1/4) | 84 (3 5/16) | 215 (7.6) | 12 (7/16) | 750 (1655) | 1500 (3310) | 46 (1 13/16) | 4 | 6 FH (1/4 FH) | 9.5 (3/8) | 22.5 (7/8) | 51.5 (2 1/32) | 16 (5/8) | 59 (2 5/16) | 84 (3 5/16) | 13 (1/2) |
| 3235 | 75 mm Black Magic Air Aluminium Double Footblock | 75 (2 15/16) | 111 (4 3/8) | 490 (17.28) | 14 (9/16) | 1572 (3465) | 3143 (6930) | 57 (2 1/4) | 4 | 8 FH (5/16 FH) | 11.5 (15/32) | 28.5 (1 1/8) | 70.5 (2 3/4) | 21 (13/16) | 77 (3) | 110 (4 5/16) | 17 (21/32) |
| 3250 | 100 mm Black Magic Air Aluminium Double Footblock | 100 (3 15/16) | 143 (5 5/8) | 967 (34.1) | 16 (5/8) | 2250 (4950) | 4500 (9900) | 62 (2 7/16) | 4 | 10 FH (3/8 FH) | 14.5 (9/16) | 37.5 (1 15/32) | 92.5 (3 21/32) | 28 (1 3/32) | 100 (3 15/16) | 143 (5 5/8) | 23 (29/32) |
| 3258 | 125 mm Black Magic Air Aluminium Double Footblock | 125 (4 15/16) | 176 (6 15/16) | 1711 (60.35) | 19 (3/4) | 3292 (7260) | 6585 (14520) | 71.5 (2 13/16) | 4 | 12 FH (1/2 FH) | 17 (21/32) | 45 (1 25/32) | 113 (4 7/16) | 34.5 (1 11/32) | 127.5 (5 1/32) | 176 (6 29/32) | 28 (1 3/32) |
