Product Description

Harken 125mm Runner Block – becket

Description – The entire line of Black Magic AirBlocks has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same.

Black Magic Air Runners are strong, lightweight blocks with extremely free-rolling sheaves. Blocks feature Torlon roller bearings in a center cage for strength.

Heads are offered with parallel/perpendicular shackles. Tangs attach turnbuckles, toggles, and other fittings. No tools required for installation.

Sheave (mm) – 125 mm

Sheave (in) – 4 15/16 in

Length (mm) – 240 mm

Length (in) – 9 1/2 in

Weight (g) – 950 g

Weight (oz) – 33.52 oz

Clevis pin (mm) – 19 mm

Clevis pin (in) – 3/4 in

Maximum line (mm) 19 mm

Maximum line (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