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75 mm Runner Block 75 mm Runner Block
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Black Magic® Air Runner®

75 mm Runner Block

Part No. 3238
$424.00  Not available on-line. Please contact your Harken dealer.
Sheave Ø (mm)75 mm
Sheave Ø (in)2 15/16 in
Maximum line Ø (mm)14 mm
Maximum line Ø (in)9/16 in
Maximum working load (kg)2268 kg
Maximum working load (lb)5000 lb

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.

Sheave Ø (mm)75 mm
Sheave Ø (in)2 15/16 in
Length (mm)118 mm
Length (in)4 5/8 in
Weight (g)288 g
Weight (oz)10.16 oz
Clevis pin Ø (mm)12.7 mm
Clevis pin Ø (in)1/2 in
Maximum line Ø (mm)14 mm
Maximum line Ø (in)9/16 in
Maximum working load (kg)2268 kg
Maximum working load (lb)5000 lb
Breaking load (kg)4544 kg
Breaking load (lb)10000 lb
DWG: 3238.DWG (open/save)
DXF: 3238.DXF (open/save)
IGS: 3238.IGS (open/save)
EPS: 3238.eps (open/save)
High-res JPG: 3238.jpg (open/save)
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