Shaft Stress Calculator

Calculate bending stress, torsional shear stress, and combined von Mises equivalent stress for rotating shafts.

σ_b = 32M / (πd³) Bending Stress
τ = 16T / (πd³) Torsional Shear
σ_vm = √(σ_b² + 3τ²) von Mises

Shaft Diameter (mm)

Bending Moment (Nm)

Torque (Nm)

Material Yield Strength (MPa)AISI 1045=310, 4140=655, 4340=860