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75mm Aluminum Loop Block

Part No. 3230

Sheave Ø (mm) 75 mm

Sheave Ø (in) 2 15/16 in

Maximum line Ø (mm) 14 mm

Maximum line Ø (in) 9/16 in

Maximum working load (kg) 2268 kg

Maximum working load (lb) 5000 lb

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. The sheave center carries primary load, allowing a smaller, lighter weight block. The soft-attachment Loop block has a removable deadend post for attachment to a padeye. Lashings can also be used. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Sheave Ø (mm)75 mm
Sheave Ø (in)2 15/16 in
Length (mm)100 mm
Length (in)3 15/16 in
Weight (g)209 g
Weight (oz)7.36 oz
Maximum line Ø (mm)14 mm
Maximum line Ø (in)9/16 in
Maximum working load (kg)2268 kg
Maximum working load (lb)5000 lb
Breaking load (kg)4536 kg
Breaking load (lb)10000 lb
Composer Export214563BOM IDDescriptionQty1AL-3336 DEAD END12AL-3726 ALPHA CHEEK13AL-3727 BETA CHEEK14H-34390A SHEAVE ASSM.15HBB86 ROLLER CAGE ASSM.16HFS806 FST. 5 X .8 X 16MM SHCS1tooltip
ID BOM Qty Price
H-34390A 1 more info $38.50
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Sheave Assembly - 75mm Black Magic Block

Sheaves are Hard Lube-anodized for maximum UV protection and a smooth surface. Captive Delrin® ball bearings carry side loads.

HCP1438 1 more info $4.55
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Line - 2 mm x 4 ft Maxibraid Plus, Grey with Black Tracer

Use as lashing line.

AL-3726 1 more info $128.40
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Sideplate with Helicoils - 75mm Black Magic Loop Block

Sideplates are Hard Lube-anodized for maximum UV protection and a smooth surface.

AL-3727 1 more info

Sideplate - 75mm Black Magic Loop Block

Sideplates are Hard Lube-anodized for maximum UV protection and a smooth surface.

AL-3336 1 more info $16.05
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Dead-End Post - 75mm Black Magic Loop Block

Patented Loop blocks have a removable deadend post for attachment to a padeye.

HBB86 1 more info $49.50
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Roller Cage Assembly - 75mm Black Magic Block

Center cage keeps Torlon® roller bearings separated and parallel to reduce friction.

HFS806 1 more info $1.07
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Fastener - M5 x .8 x 16mm Socket Head Cap Screw, Black

Fasten with M5 hex wrench.

Harken US Offices will be closed for Memorial Day. Any orders placed after 1pm on Friday May 27th will be processed Tuesday May 31st when offices reopen.

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