Harken Narrow Sheave
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.
Note: Breaking load based on use of solid 304 stainless shafts.
| Part Number | Sheave Diameter | Width | Weight | Max. Line Diameter | Max. Working Load | Breaking Load | Max. Wire Diameter | Centre Pin Diameter |
|---|---|---|---|---|---|---|---|---|
| HKN-691 | 76mm | 16mm | 128g | 10mm | 1814kg | 7484kg | 5mm | 12.7mm |
| HKN-692 | 102mm | 19mm | 227g | 12mm | 3742kg | 7484kg | 8mm | 12.7mm |
