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Narrow Halyard & Steering Sheaves

76 mm Narrow Sheave

Part No. 691
$141.35  In Stock
Sheave Ø (mm)76 mm
Sheave Ø (in)3 in
Maximum line Ø (mm)10 mm
Maximum line Ø (in) 3/8 in
Maximum working load (kg)1814 kg
Maximum working load (lb)4000 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)76 mm
Sheave Ø (in)3 in
Width (mm)16 mm
Width (in) 5/8 in
Weight (g)128 g
Weight (oz)4.5 oz
Center pin Ø (mm)12.7 mm
Center pin Ø (in) 1/2 in
Maximum line Ø (mm)10 mm
Maximum line Ø (in) 3/8 in
Maximum wire Ø (mm)5 mm
Maximum wire Ø (in) 3/16 in
Maximum working load (kg)1814 kg
Maximum working load (lb)4000 lb
Breaking load (kg)7484 kg
Breaking load (lb)16500 lb
FootnoteBreaking load based on use of solid 304 stainless shafts. 
IGS: 691.IGS (open/save)
EPS: 691.eps (open/save)
High-res JPG: 691.jpg (open/save)

DO NOT use Harken Equipment for Human suspension.

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