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100 mm Aluminum Standup Block — Becket 100 mm Aluminum Standup Block — Becket
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100 mm Black Magic

100 mm Aluminum Standup Block — Becket

Part No. 3211
$1,005.90NEW!  Not available on-line. Please contact your Harken dealer.
Sheave Ø (mm)100 mm
Sheave Ø (in)3 15/16 in
Maximum line Ø (mm)16 mm
Maximum line Ø (in)5/8 in
Maximum working load (kg)3402 kg
Maximum working load (lb)7500 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.

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)235 mm
Length (in)9 1/4 in
Base Ø (mm)93 mm
Base Ø (in)3 21/32 in
Weight (g)921 g
Weight (oz)32.49 oz
Maximum line Ø (mm)16 mm
Maximum line Ø (in)5/8 in
Maximum working load (kg)3402 kg
Maximum working load (lb)7500 lb
Breaking load (kg)6804 kg
Breaking load (lb)15000 lb
Fasteners (mm)10 FH mm
Fasteners (in)3/8 FH in
A (mm)93 mm
A (in)3 21/32 in
B (mm)97 mm
B (in)3 27/32 in
C (mm)59 mm
C (in)2 5/16 in
IncludesIncludes padeye. Uses hole spacing and base dimensions of 648 padeye. 
Photo - EPS:  3211.eps (open/save)
Photo - JPG:  3211.jpg (open/save)
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