3251
100mm Runner Block
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 3251
| Sheave diameter | 100 mm |
|---|---|
| Length | 157 mm |
| Weight | 481 g |
| Pin diameter | 15.9 mm |
| Maximum line diameter | 16 mm |
| Maximum working load | 3402 kg |
| Breaking load | 6804 kg |