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Harken 57 mm Black MagicŪ High-load Doubl footblock
Cat. No. HAR 3222
Weight 1 lbs

1964 57 mm High-load Double Foot Block

Black Magic® footblocks carry some of the highest loads imposed by running rigging. The Torlon® rollers on these lightweight, free-running blocks are housed in a center cage, with no contact between bearings. UV-resistant, carbon-black Delrin® balls handle sideloads.

Either metric or imperial flathead fasteners may be used for mounting and are not exposed.

Use for:

Description Double hi-load
Sheave dia. (in) 2 1/4
Length (in) 3 5/16
Height (in) 1 13/16
Weight (oz) 6.9
Line dia. - max. (in) 7/16
SWL (lb) 1650
Breaking strength (lb) 3300
Fasteners (FH) (in) 4 x 1/4
A (in) 3/8
B (in) 15/16
C (in) 2 1/16
D (in) 5/8
E (in) 2 3/8
F (in) 3 5/16
G (in) 1/2

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