3239
75mm Runner Block w/Becket
Runners are used on running backstays of offshore boats to adjust mast bend for different wind conditions.
Integrated sideplate bails and recessed cotter key help produce a smooth design that won’t snag lifelines.
Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Technical specifications · Harken 3239
| Sheave diameter | 75 mm |
|---|---|
| Length | 146 mm |
| Weight | 318 g |
| Pin diameter | 12.7 mm |
| Maximum line diameter | 14 mm |
| Maximum working load | 2268 kg |
| Breaking load | 4536 kg |