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75mm Aluminum Double Footblock — Lockoff

75mm Aluminum Double Footblock — Lockoff

Part No. 3237

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) 1572 kg

Maximum working load (lb) 3465 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)75 mm
Sheave Ø (in)2 15/16 in
Length (mm)111 mm
Length (in)4 3/8 in
Height (mm)57 mm
Height (in)2 1/4 in
Weight (g)574 g
Weight (oz)20.24 oz
Maximum line Ø (mm)14 mm
Maximum line Ø (in)9/16 in
Maximum working load (kg)1572 kg
Maximum working load (lb)3465 lb
Breaking load (kg)3143 kg
Breaking load (lb)6930 lb
Number of fasteners4
Fasteners (mm)8 FH mm
Fasteners (in)5/16 FH in
A (mm)11.5 mm
A (in)15/32 in
B (mm)28.5 mm
B (in)1 1/8 in
C (mm)70.5 mm
C (in)2 3/4 in
D (mm)21 mm
D (in)13/16 in
E (mm)77 mm
E (in)3 in
F (mm)110 mm
F (in)4 5/16 in
G (mm)17 mm
G (in)21/32 in
Composer Export381467259BOM IDDescriptionQty1AL-3315 LOCKOFF22AL-3738 ALPHA CHEEK13AL-3739 BETA CHEEK14AL-3740 CENTER CHEEK15H-22888A MYLAR WASHER26H-34390A SHEAVE ASSM.27HBB86 ROLLER BEARING ASSM.28HCP355 O-RING29HFS791 FST. 5 X .8 X 40MM SHCS3tooltip
ID BOM Qty Price
AL-3315 2 more info $25.00
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Lockoff - ESP/Black Magic Footblock, Lockoff

Footblocks with lockoffs temporarily secure sheets.

H-34390A 2 more info $36.00
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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.

H-22888A 2 more info $1.10
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Mylar Washer - .557 ID x .750 OD

HBB86 2 more info $46.25
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Roller Cage Assembly - 75mm Black Magic Block

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

HCP355 2 more info $1.50
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O-Ring - 11/16 x 7/16

O-rings form a watertight seal.

HFS791 3 more info $2.25
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Fastener - M5 x 0.8 x 40 mm Socket Head Cap Screw, Black

Fasten with M5 hex wrench.

AL-3738 1 more info

Top Plate with Isolators - 75 mm Black Magic Footblock, Lockoff

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

AL-3739 1 more info

Bottom Plate with Helicoils - 75 mm Black Magic Footblock, Lockoff

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

AL-3740 1 more info

Center Plate - 75 mm Black Magic Double Footblock, Lockoff

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