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Home: Marine Catalog: Deck Accessories: Blocks and Hardware:

Harken 100 mm Black Magic Aluminum Double Block Swivel
Cat. No. HAR 3248
Weight 4 lbs
$1,200.00

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)100 mm
Sheave Ø (in)3 15/16 in
Length (mm)227 mm
Length (in)8 15/16 in
Weight (g)1284 g
Weight (oz)45.28 oz
Shackle pin Ø (mm)12 mm
Shackle pin Ø (in)1/2 in
Maximum line Ø (mm)16 mm
Maximum line Ø (in)5/8 in
Maximum working load (kg)4990 kg
Maximum working load (lb)11000 lb
Breaking load (kg)9979 kg
Breaking load (lb)22000 lb

DWG:3248.DWG (open/save)
DXF:3248.DXF (open/save)
IGS:3248.IGS (open/save)
EPS:3248.eps (open/save)






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