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| Home: Marine Catalog: Deck Accessories: Blocks and Hardware:
Harken 57 mm Black Magic® Low-Load Block — Swivel, Becket
Cat. No. HAR 3229
Weight 1 lbs | $200.00 |
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.
Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface.
Center cage keeps Torlon® roller bearings separated and parallel to reduce friction.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Sheave Ø (mm)57 mm
Sheave Ø (in)2 1/4 in
Length (mm)140 mm
Length (in)5 1/2 in
Weight (g)169 g
Weight (oz)5.95 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)750 kg
Maximum working load (lb)1655 lb
Breaking load (kg)1500 kg
Breaking load (lb)3310 lb
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