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Harken
Harken 75mm Black Magic Block - Single / Swivel / Low-Load

Harken 75mm Black Magic Block - Single / Swivel / Low-Load

Our Part #: HAR3243 | Mfr. Part #: 3243
$349.20 (was: $440.75)
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Sheave: 75 mm (2 15/16 in)
Length: 129 mm (5 1/8 in)
Weight: 335 g (11.82 oz)
Shackle Pin: 8 mm (5/16 in)
Maximum Line: 14 mm (9/16 in)
Maximum Working Load: 1361 kg (3000 lb)
Breaking Load: 2722 Kg (6000 lb)

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.

The low-load block has a red isolator. It uses Delrin® ball bearings, with a 17-4 PH stainless headpost and 316 stainless steel shackles.

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