Harken 57mm Aluminum Low Load Black Magic Block w/Swivel
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Special Order
BC, Warehouse
"Special Order" items will take longer to process and ship then "Express" items. Typically takes no more then 14 days for delivery. For next day parts. Visit our express parts catalog Here. In Stock
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57mm Aluminum Low Load Black Magic Block with Swivel
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 the 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 head posts. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Specifications:
- Sheave: 57mm/2-1/4in
- Length: 119mm/4-11/16in
- Weight: 154g/5.44oz
- Shackle Pin: 6mm/1/4in
- Maximum Line: 12mm / 7/16in
- Maximum Working Load: 7/16kg / 1655lbs
- Breaking Load: 1500kg / 3300lb

