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Harken

Block - Black Magic 57mm Single - Wide Sheave / Loop

Harken Block - Black Magic 57mm Single - Wide Sheave / Loop
$347.95 (List Price: $395.40)
12% OFF This Week! You save $47
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Our Part #: HAR3387 | Mfr. Part #: 3387
Free Shipping for US Continental orders over $99.

DescriptionImperialMetric
Sheave Dia.2 1/4 in.63.00 mm.
Length3 4/10 in.88.00 mm.
Width1 3/8 in.35.00 mm.
Weight6.40 oz.181.30 g.
Maximum working load2500.00 lb.1134.00 kg.
Breaking load5000.00 lb.2268.00 kg.

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.