for US Continental orders over $99
Harken 57mm Black Magic Block - Stand-Up
Our Part #: HAR3227 | Mfr. Part #: 3227
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)
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.
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.