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Square Shaft Torsion

This calculator calculates the maximum allowable torsion for a square shaft. This is done with the equation below.

T=2×τmaxH39T = \frac{2\times \tau_{max}H^3}{9}

The following are the variables for the equations...

  1. T = the torsion, twisting torque or tension. (Nm, lb f ft).
  1. τ (max) = maximum shear stress (Pa).
  1. H = the height of the shaft.
Figure 1: Diagram of a Square Shaft to Calculate The Torsion


Square Shaft Torsion Calculator

Inputs



Max shear stress, τ (max)
:40.00Pa​



Height, H
:1.50m​


Output



Torque, T
:30.00nm​


T=2×τmaxH39T = \frac{2\times \tau_{max}H^3}{9}

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