Harken 45mm Aluminum Black Magic Air Block w/Swivel

45mm Aluminum Black Magic Air 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. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Specifications:

• Sheave (mm): 45 mm


• Sheave (in): 1-3/4 in


• Length (mm): 100 mm


• Length (in): 3-15/16 in


• Weight (g): 79 g


• Weight (oz): 2.79 oz


• Shackle pin (mm): 5 mm


• Shackle pin (in): 3/16 in


• Maximum line (mm): 10 mm


• Maximum line (in): 3/8 in


• Maximum working load (kg): 750 kg


• Maximum working load (lb): 1653 lb


• Breaking load (kg): 1500 kg


• Breaking load (lb): 3306 lb