Harken 57mm Aluminum Low Load Black Magic Block w/Swivel – 3226

Description:

57mm Aluminum Low Load Black Magic Block with SwivelBlack 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/2-1/4inLength: 119mm/4-11/16inWeight: 154g/5.44ozShackle Pin: 6mm/1/4inMaximum Line: 12mm / 7/16inMaximum Working Load: 7/16kg / 1655lbsBreaking Load: 1500kg / 3300lb Manufacturer : Harken Manufacturer Part No : 3226