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Big Boat Sheaves

114 mm Wide Sheave

Part No. 657
$563.70  In Stock
Sheave Ø (mm)114 mm
Sheave Ø (in)4 1/2 in
Maximum line Ø (mm)18 mm
Maximum line Ø (in) 7/8 in
Maximum working load (kg)6736 kg
Maximum working load (lb)14850 lb

Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of hardcoat-anodized, PTFE-impregnated 6061-T6 aluminum, sheaves feature Torlon® rollers to carry high radial loads and carbon-black Delrin® balls to support sideloads and provide UV protection.

Delrin® is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.
Torlon® is a registered trademark of Solvay Advanced Polymers.

Sheave Ø (mm)114 mm
Sheave Ø (in)4 1/2 in
Width (mm)41 mm
Width (in)1 5/8 in
Weight (g)709 g
Weight (oz)25 oz
Center pin Ø (mm)19.1 mm
Center pin Ø (in) 3/4 in
Fasteners (mm)10 mm
Fasteners (in)3/8 in
Maximum line Ø (mm)18 mm
Maximum line Ø (in) 7/8 in
Maximum working load (kg)6736 kg
Maximum working load (lb)14850 lb
Breaking load (kg)13472 kg
Breaking load (lb)29700 lb
DWG: 657.dwg (open/save)
DXF: 657.dxf (open/save)
IGS: 657.igs (open/save)
EPS: 657.eps (open/save)
High-res JPG: 657.jpg (open/save)

DO NOT use Harken Equipment for Human suspension.

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