• Harken 57mm Aluminum Low-Load Block — Swivel

The Symbol : 97653264453

Item number: 3226

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57mm Aluminum Low-Load Block — 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 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 headposts. 

Sheave Ø (mm): 57 mm

Length (mm): 119 mm

Weight (g): 154 g

Shackle pin Ø (mm): 6 mm

Maximum line Ø (mm): 12 mm

Maximum working load (kg): 750 kg

Breaking load (kg): 1500 kg

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