
Harken 57mm Black Magic Block - Stand-Up
Regular price £306.02Black 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.
Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Technical Information:
Sheave: 57 mm (2 1/4 in)
Length: 114 mm (4 1/2 in)
Weight: 200 g (7.04 oz)
Maximum Line: 12 mm (7/16 in)
Maximum Working Load: 1134 kg (2500 lb)
Breaking Load:2268 Kg (5000 lb)
Fasteners:6 mm (1/4 in)
Fasteners Circle:37 mm (1 15/32 in)
A:57 mm (2 7/32 in)
B:56 mm (2 3/16 in)
C:32 mm (1 1/4 in)
includes: Padeye