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Circular Shaft and Polar Moment of Inertia

Last modified by
on
Oct 20, 2021, 2:01:13 PM
Created by
on
Jul 17, 2014, 4:47:31 PM
J=πD432
(D)Shaft inside Diameter
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0ba5e772-0dd2-11e4-b7aa-bc764e2038f2

Circular Shaft and Polar Moment of Inertia

Polar Moment of Inertia of a circular solid shaft can be expressed as

J = π D4 / 32    

where

  • J = Moment of Inertia in mm4
  • D = shaft outside diameter (mm, in)

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