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| Home: Marine Catalog: Deck Accessories: Blocks and Hardware:
Harken 57 mm Black MagicŪ High-load Single/lockoff footblock
Cat. No. HAR 3221
Weight 1 lbs | $214.51 |
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)84 mm
Length (in)3 5/16 in
Height (mm)25 mm
Height (in)1 in
Weight (g)154 g
Weight (oz)5.44 oz
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
Number of fasteners4
Fasteners (mm)6 FH mm
Fasteners (in)1/4 FH in
A (mm)9.5 mm
A (in)3/8 in
B (mm)22.5 mm
B (in)29/32 in
C (mm)51.5 mm
C (in)2 1/32 in
D (mm)16 mm
D (in)5/8 in
E (mm)59 mm
E (in)2 5/16 in
F (mm)84 mm
F (in)3 5/16 in
G (mm)13 mm
G (in)1/2 in
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