Product

HARKEN SINGLE RUNNER BLOCK BKT 125MM

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Old Style Harken Black Magic Runner Block. Available only while stocks last.

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.

Sheave Ø (mm)
125 mm

Sheave Ø (in)
4 15/16 in

Length (mm)
195 mm

Length (in)
7 11/16 in

Width (mm)
183.5 mm

Width (in)
7 7/32 in

Weight (g)
844 g

Weight (oz)
29.76 oz

Clevis pin Ø (mm)
19 mm

Clevis pin Ø (in)
3/4 in

Maximum line Ø (mm)
19 mm

Maximum line Ø (in)
3/4 in

Maximum working load (kg)
4990 kg

Maximum working load (lb)
11000 lb

Breaking load (kg)
9980 kg

Breaking load (lb)
22000 lb