Description
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. The low-load block has a red isolator. It uses Delrin? ball bearings, with a 17-4 PH stainless headpost and 316 stainless steel shackles. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.#
Sheave ? (mm) 75 mm
Sheave ? (in) 2 15/16 in
Length (mm) 129 mm
Length (in) 5 1/8 in
Weight (g) 335 g
Weight (oz) 11.82 oz
Shackle pin ? (mm) 8 mm
Shackle pin ? (in) 5/16 in
Maximum line ? (mm) 14 mm
Maximum line ? (in) 9/16 in
Maximum working load (kg) 1361 kg
Maximum working load (lb) 3000 lb
Breaking load (kg) 2722 kg
Breaking load (lb) 6000 lb
