Harken 75mm Wide Black Magic Loop Block
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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. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Sheave Ø (mm) 82 mm
Sheave Ø (in) 3 1/4 in
Length (mm) 116 mm
Length (in) 4 17/32 in
Width (mm) 42 mm
Width (in) 1 5/8 in
Weight (g) 345.5 g
Weight (oz) 12.2 oz
Maximum line Ø (mm) 14 mm
Maximum line Ø (in) 9/16 in
Maximum working load (kg) 2268 kg
Maximum working load (lb) 5000 lb
Breaking load (kg) 4536 kg
Breaking load (lb) 10000 lb
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