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Narrow Halyard & Steering Sheaves

127 mm Narrow Sheave

Part No. 693
$392.55  Limited Quantities In Stock
Sheave Ø (mm)127 mm
Sheave Ø (in)5 in
Maximum line Ø (mm)12 mm
Maximum line Ø (in) 7/16 in
Maximum working load (kg)5443 kg
Maximum working load (lb)12000 lb

Narrow high-load sheaves in mastheads improve sail handling, speed sail changes, and allow the use of smaller, lighter halyard winches. Sheaves combine sideload-carrying balls with a PTFE composite bushing for radial loads.

Sheave Ø (mm)127 mm
Sheave Ø (in)5 in
Width (mm)19 mm
Width (in) 3/4 in
Weight (g)340 g
Weight (oz)12 oz
Center pin Ø (mm)19.1 mm
Center pin Ø (in) 3/4 in
Maximum line Ø (mm)12 mm
Maximum line Ø (in) 7/16 in
Maximum wire Ø (mm)8 mm
Maximum wire Ø (in) 5/16 in
Maximum working load (kg)5443 kg
Maximum working load (lb)12000 lb
Breaking load (kg)16828 kg
Breaking load (lb)37100 lb
FootnoteBreaking load based on use of solid 304 stainless shafts. 
DWG: 693.dwg (open/save)
DXF: 693.dxf (open/save)
IGS: 693.igs (open/save)
EPS: 693.eps (open/save)
High-res JPG: 693.jpg (open/save)

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.

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