Description
Harken 57mm-150mm Black Magic Air 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.
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3220 | 57 mm Black Magic Air Aluminium Footblock | 57 (2 1/4) | 84 (3 5/16) | 122 (4.29) | 12 (7/16) | 1134 (2500) | 2268 (5000) | 25 (1) | 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) |
| 3234 | 75 mm Black Magic Air Aluminium Footblock | 75 (2 15/16) | 111 (4 3/8) | 277 (9.76) | 14 (9/16) | 2380 (5250) | 4762 (10500) | 32 (1 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) |
| 3249 | 100 mm Black Magic Air Aluminium Footblock | 100 (3 15/16) | 143 (5 5/8) | 555 (19.57) | 16 (5/8) | 3402 (7500) | 6804 (15000) | 33 (1 5/16) | 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) |
| 3257 | 125 mm Black Magic Air Aluminium Footblock | 125 (4 15/16) | 176 (6 15/16) | 972 (34.29) | 19 (3/4) | 4990 (11000) | 9979 (22000) | 43 (1 11/16) | 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) |
| 3263 | 150 mm Black Magic Air Aluminium Footblock | 150 (5 15/16) | 205 (8 1/16) | 1661 (58.58) | 25 (1) | 6804 (15000) | 13608 (30000) | 48 (1 7/8) | 4 | 16 FH (5/8 FH) | 20.5 (13/16) | 53.5 (2 3/32) | 129 (5 3/32) | 41 (1 5/8) | 154 (6 1/16) | 204 (8 1/32) | 33 (1 5/16) |
