Abstract:

ESDU 73002 gives stress-endurance curves for constant amplitude torsion applied by the female member, the shaft being free of other loads. Data show the effect for various steels of varying spline height and root radius, the improvements resulting from surface treatments (induction hardening, case hardening or shot peening) and the effect of increasing the number of splines from six to 10 (and includes the special case of an involute form with 23 or 24 splines). Materials data are included.