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75 mm Aluminum Double Footblock 75 mm Aluminum Double Footblock 75 mm Aluminum Double Footblock
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75 mm Black Magic

75 mm Aluminum Double Footblock

Part No. 1973
$589.80  In Stock
Sheave Ø (mm)75 mm
Sheave Ø (in)3 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

Carrying some of the highest loads imposed by running rigging, these strong, lightweight blocks feature Torlon® roller bearings housed in a center cage. Rollers stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion. Blocks are easily disassembled with a single hex wrench.

Either metric or imperial flathead fasteners may be used for mounting and are not exposed.

Torlon is a registered trademark of Solvay Advanced Polymers.

Sheave Ø (mm)75 mm
Sheave Ø (in)3 in
Length (mm)111 mm
Length (in)4 3/8 in
Height (mm)57 mm
Height (in)2 1/4 in
Weight (g)508 g
Weight (oz)18 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 fasteners
Fasteners (mm)8 FH mm
Fasteners (in)5/16 FH in
A (mm)10 mm
A (in)3/8 in
B (mm)29 mm
B (in)1 1/8 in
C (mm)71 mm
C (in)2 13/16 in
D (mm)21 mm
D (in)13/16 in
E (mm)76 mm
E (in)3 in
F (mm)110 mm
F (in)4 5/16 in
G (mm)16 mm
G (in)5/8 in
Manual: 4546.pdf (open/save)
DWG: 1973.dwg (open/save)
DXF: 1973.dxf (open/save)
IGS: 1973.igs (open/save)
EPS: 1973.eps (open/save)
High-res JPG: 1973.jpg (open/save)

DO NOT use Harken Equipment for Human suspension.

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