
Harken 57mm Black Magic Block - Triple - Swivel
Regular price £497.16/
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: 378 g (13.34 oz)
Shackle Pin: 8 mm (5/16 in)
Maximum Line: 12 mm (7/16 in)
Maximum Working Load: 2200 kg (4850 lb)
Breaking Load:9700 Kg (9700 lb)