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Harken

Block - Black Magic 57mm Double - Swivel (Low-Load)

Harken Block - Black Magic 57mm Double - Swivel (Low-Load)
$419.95 (List Price: $476.65)
12% OFF This Week! You save $57
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Our Part #: HAR3228 | Mfr. Part #: 3228
Free Shipping for US Continental orders over $99.

DescriptionImperialMetric
Sheave2 1/4 in.57.00 mm.
Length5 1/5 in.132.00 mm.
Weight12.06 oz342.00 gr.
Maximum Line1/2 in.12.00 mm.
Maximum Working Load2756.25 lb.1250.00 kg.
Breaking Load5512.50 lb.2500.00 kg.
Shackle Pin1/3 in.8.00 mm.

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.

Low-load blocks have red isolators. They use Torlon® rollers and 316 stainless steel shackles. Standard blocks have 17-4 PH stainless headposts.

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

Our Part # HAR3228 | Harken Part # 3228