How to use the shaft shear stress calculator
Find the maximum shear stress in a solid circular shaft under torque. Enter torque, shaft diameter in the fields above; the maximum shear stress is computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “shaft twisting stress”, “torsion stress”, “drive shaft strength”, “calculate shaft shear stress”, “find maximum shear stress”.
Formula
Variables
- T — Torque (N·m)
- d — Shaft diameter (mm)
Worked example
With torque = 500 N·m, shaft diameter = 40 mm, the calculator gives maximum shear stress ≈ 39.78874 MPa.
Frequently asked questions
What is the shaft shear stress calculator used for?
Find the maximum shear stress in a solid circular shaft under torque. It helps with questions such as “shaft twisting stress”, “torsion stress”, “drive shaft strength”.
What is the formula for the shaft shear stress calculation?
Maximum shear stress (MPa) = 16 × T / (π × (d / 1000)^3) / 1e6. Here T is torque (N·m), d is shaft diameter (mm).
What inputs do I need for the shaft shear stress calculator?
You need torque in N·m, shaft diameter in mm. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the shaft shear stress calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the shaft shear stress result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.