Determine the diameter of a shaft under torsion - dannybekaert.be

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shafts under torsion

Calculate the required diameter d of a shaft for power-based torsion

The calculation result is:

Torsion moment T	?	Nmm
Required resistance moment against torsion	?	mm³

Diameter d for torsion	?	mm
Corresponding support distance in case of free supporting	?	mm
Corresponding support distance in case of clamping	?	mm
Corresponding support distance in case of deformation β <= 0.001 rad	?	mm

Diameter d for a deformation smaller than 0.25 degree/m	?	mm
Corresponding support distance in case of free supporting	?	mm
Corresponding support distance in case of clamping	?	mm
Corresponding support distance in case of deformation β <= 0.001 rad	?	mm

Calculate the required diameter d of an axis based on a bending and torsion moment

The calculation result is:

Idealistic bending moment M_bi according to Poncelet	?	Nmm
Poncelet: 0.35 M_b+0.65 sqrt(M_b²+M_w²)
Idealistic bending moment M_bi according to Huber Hencky	?	Nmm
Huber Hencky: sqrt(M_b²+0.75 M_w²)
Diameter d according to Poncelet	?	mm
Diameter d according to Huber Hencky	?	mm

Enter your number values and press the Calculate! button to know the calculation result.

All calculated diameters d are full shafts, for conversion to hollow shafts see "Properties of sections part 2".

Standard shaft diameters are: 25, 30, 35, 40, 45, 50, 55, 60, 70, 80, 90, 100, 110, 125, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340, 360, 380, 400, 420, 440, 460, 480, 500 mm