Harken 57mm Runner Block
Harken 57mm 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 Description
| Sheave Ø (mm) | 57 mm |
| Sheave Ø (in) | 2 1/4 in |
| Length (mm) | 86 mm |
| Length (in) | 3 3/8 in |
| Weight (g) | 125 g |
| Weight (oz) | 4.42 oz |
| Maximum line Ø (mm) | 12 mm |
| Maximum line Ø (in) | 1/2 in |
| Maximum working load (kg) | 1134 kg |
| Maximum working load (lb) | 2500 lb |
| Breaking load (kg) | 2268 kg |
| Breaking load (lb) | 5000 lb |
| Clevis pin Ø (mm) | 10 mm |
| Clevis pin Ø (in) | 3/8 in |
Harken 57mm 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 Description
| Sheave Ø (mm) | 57 mm |
| Sheave Ø (in) | 2 1/4 in |
| Length (mm) | 86 mm |
| Length (in) | 3 3/8 in |
| Weight (g) | 125 g |
| Weight (oz) | 4.42 oz |
| Maximum line Ø (mm) | 12 mm |
| Maximum line Ø (in) | 1/2 in |
| Maximum working load (kg) | 1134 kg |
| Maximum working load (lb) | 2500 lb |
| Breaking load (kg) | 2268 kg |
| Breaking load (lb) | 5000 lb |
| Clevis pin Ø (mm) | 10 mm |
| Clevis pin Ø (in) | 3/8 in |
Original: $365.95
-70%$365.95
$109.78Description
Harken 57mm 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 Description
| Sheave Ø (mm) | 57 mm |
| Sheave Ø (in) | 2 1/4 in |
| Length (mm) | 86 mm |
| Length (in) | 3 3/8 in |
| Weight (g) | 125 g |
| Weight (oz) | 4.42 oz |
| Maximum line Ø (mm) | 12 mm |
| Maximum line Ø (in) | 1/2 in |
| Maximum working load (kg) | 1134 kg |
| Maximum working load (lb) | 2500 lb |
| Breaking load (kg) | 2268 kg |
| Breaking load (lb) | 5000 lb |
| Clevis pin Ø (mm) | 10 mm |
| Clevis pin Ø (in) | 3/8 in |
