125mm Black Magic® Swivel Block
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HARKEN125mm Black Magic® Swivel Block


Fulfilled from vendor
Model # 17114497 | Mfg # 3256UPC # 97653265757
125mm Black Magic® Swivel Block




125mm Black Magic® Swivel Block

Name Value
Ball Bearings Torlon
Becket No Becket
Diameter 3/4 Inch or 19 mm
Direction Any
Integral Cleat No Integral Cleat
Length 10 Inches
Mount Type Swivel Shackle
Ratchet Non Ratcheting
Safe Working Load 11000 Pounds
Sheave Diameter 125 mm
Type Single
Weight 37.31 Ounces

Product Overview

Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting.

  • Use for sheets, halyards, running backstays, control lines
  • Width: 5 Inch
  • Breaking Load: 22000 Pounds
  • Material: Aluminum


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