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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
Product Information
Weight: 0.35 lb
Dimensions: 6× 3× 1in
Product Specifications
Manufacturer Part Number 3226
Manufacturer Name Harken
Drop Ships Direct from vendor no
Hazardous materials no
Truck Freight no
Exportable yes
First Class Mail yes
Oversized no
Remanufactured no
Closeout no
Prop 65 no
Returnable yes
Product Manuals & Guides

No user guides or manuals available for this product.

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Harken 57mm Aluminum Low Load Black Magic Block w/Swivel
Harken 57mm Aluminum Low Load Black Magic Block w/Swivel
$241.00