• 57mm Aluminum Block — Swivel
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Harken

57mm Aluminum Block — Swivel

57mm Aluminum Block — Swivel

£209.00
£209.00
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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.

Harken Part No: 3215

heave Ø (mm) 57 mm
Sheave Ø (in) 2 1/4 in
Length (mm) 119 mm
Length (in) 4 11/16 in
Weight (g) 152 g
Weight (oz) 5.36 oz
Shackle pin Ø (mm) 6 mm
Shackle pin Ø (in) 1/4 in
Maximum line Ø (mm) 12 mm
Maximum line Ø (in) 7/16 in
Maximum working load (kg) 1134 kg
Maximum working load (lb) 2500 lb
Breaking load (kg) 2268 kg
Breaking load (lb) 5000 lb
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