Black Magic - 45 mm Single 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.
Specification: Single
Harken P/No: 3396
- Sheave Diameter: 45mm
- Weight: 82g
- Maximum Line: 10mm
- Maximum Working Load: 750kg
- Breaking Load: 1500kg