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57mm Aluminum Footblock

57mm Aluminum Footblock

Part No. 3220

Sheave Ø (mm) 57 mm

Sheave Ø (in) 2 1/4 in

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

Use footblocks to redirect lines on the deck. Footblocks with lockoffs temporarily secure sheets. Either metric or imperial flathead fasteners may be used for mounting and are not exposed. 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)122 g
Weight (oz)4.29 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)7/8 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
Composer Export24315BOM IDDescriptionQty1AL-3715 BETA CHEEK12AL-3716 ALPHA CHEEK13H-34389A SHEAVE ASSM.14HBB85 ROLLR CAGE ASSM.15HFS796 FST. 4 X .7 X 12MM SHCS3tooltip
ID BOM Qty Price
HFS796 3 more info $0.30
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Fastener - M4 x .7 x 12mm Socket Head Cap Screw, Black

Fasten with M4 hex wrench.

HBB85 1 more info $28.00
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Roller Cage Assembly - 57mm Black Magic Block

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

H-34389A 1 more info $26.21
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Sheave Assembly - 57mm Black Magic Block

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

AL-3715 1 more info $78.00
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Top Plate with Isolators - 57mm Black Magic Footblock

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

AL-3716 1 more info

Bottom Plate with Helicoils - 57mm Black Magic Footblock

Sideplates are Hard Lube-anodized for maximum UV protection and a smooth surface. Dissimilar metals isolated to prevent corrosion.