125mm Black Magic® Runner Block
Model #
17114521
Mfg #
3259
$1,473.99
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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. Sideload bearing strips dampen rig vibration.
- 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
- Width: 7 7/32 Inch
- Clevis Pin Diameter: 3/4 Inch
- Breaking Load: 22000 Pounds
Ball Bearings
Torlon
Becket
No Becket
Diameter
3/4 Inch or 19 mm
Direction
Any
Integral Cleat
No Integral Cleat
Length
7 11/16 Inches
Mount Type
Fixed Lashing Eye
Ratchet
Non Ratcheting
Safe Working Load
11000 Pounds
Type
Single
Weight
29.76 Ounces
Sheave Diameter
125 mm
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