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Mechanical Core Chucks

The Convetech Mechanical Core Chuck’s precision-machined alloy steel components make it exceptionally rugged and durable. It provides the best torque capacity for braked unwinds.


The Mechanical Core chucks feature concentric lug expansion. They are available from 3” to 6” core chuck diameters. It bores to 1 ½” on 3” diameter units and bores to 3” to 6” diameter units.


The Mechanical Core Chucks are custom designed to fit your specifications. When placing an order for Mechanical Core Chuck, we ask that you specify the diameter you need a quote for so that we can make sure your Mechanical Core Chuck fits your needs and specifications.

As with all of our shafts, chucks, and accessories we guarantee that your Mechanical Core Chuck will be designed and manufactured to the same tolerances as all of our industry’s leading shaft adapters.


Please contact the office for a more specific lead time, to request a quote, or if you have other questions.

  • For light duty unwinds
  • Concentric lug expansion
  • 3” and 6” diameters
  • Bores to 1.5” on a 3” diameter chuck
  • Bores to 3” on 6” diameter chuck

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