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Narrow Halyard & Steering Sheaves

178 mm Masthead Sheave

Part No. C6730
$416.00$104.09 This limited quantity item sold out
Sheave Ø (mm)178 mm
Sheave Ø (in)7 in
Maximum line Ø (mm)16 mm
Maximum line Ø (in)5/8 in
Maximum working load (kg)6699 kg
Maximum working load (lb)14765 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)178 mm
Sheave Ø (in)7 in
Width (mm)25 mm
Width (in)1 in
Weight (g)852 g
Weight (oz)30 oz
Center pin Ø (mm)28.6 mm
Center pin Ø (in)1 1/8 in
Maximum line Ø (mm)16 mm
Maximum line Ø (in)5/8 in
Maximum working load (kg)6699 kg
Maximum working load (lb)14765 lb
FootnoteBreaking load based on use of solid 304 stainless shafts. 

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

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