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125 mm Aluminum Air® Runner Block 125 mm Aluminum Air® Runner Block
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125 mm Black Magic®

125 mm Aluminum Air® Runner Block

Part No. 3019
$984.20  In Stock
Sheave Ø (mm)125 mm
Sheave Ø (in)5 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

Runners® are used on running backstays of offshore boats to adjust mast bend for different wind conditions. 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.

Torlon® is a registered trademark of Solvay Advanced Polymers.

Sheave Ø (mm)125 mm
Sheave Ø (in)5 in
Length (mm)195 mm
Length (in)7 11/16 in
Weight (g)824 g
Weight (oz)29 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
DWG: 3019.dwg (open/save)
DXF: 3019.dxf (open/save)
IGS: 3019.igs (open/save)
EPS: 3019.eps (open/save)
High-res JPG: 3019.jpg (open/save)

DO NOT use Harken Equipment for Human suspension.

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