HARKEN 100 mm Pulley

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. The sheave center carries primary load, allowing a smaller, lighter weight block. The soft-attachment Loop block has a removable deadend post for attachment to a padeye. Lashings can also be used. Specifications: - Sheave Ø (mm): 100 mm - Sheave Ø (in): 3 15/16 in - Length (mm): 128 mm - Length (in): 5 1/16 in - Weight (g): 371 g - Weight (oz): 13.9 oz - Maximum line Ø (mm): 16 mm - Maximum line Ø (in): 5/8 in - Maximum working load (kg): 3402 kg - Maximum working load (lb): 7500 lb - Breaking load (kg): 6804 kg - Breaking load (lb): 15000 lb