Harken 57mm Black Magic Block - Double - Swivel

Harken 57mm Black Magic Block - Double - Swivel

£381.26
/
Tax included.

Black Magic Air blocks are a top favorite 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 center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting.

Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Technical Information:

Sheave: 57 mm (2 1/4 in)
Length: 132 mm (5 3/16 in)
Weight: 336 g (11.86 oz)
Shackle Pin: 8 mm (5/16 in)
Maximum Line: 12 mm (7/16 in)
Maximum Working Load: 1633 kg (3600 lb)
Breaking Load:3267 Kg (7200 lb)

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