Critical Column Load

For quickly determining the buckling load, the same result can be calculated by means of the following formula:

P_B = Buckling load [N]
d_N = Nominal diameter of ballscrew [mm]
l_s = Length of unsupported shaft [mm]
m = Coefficient of bearing configuration
fixed - fixed: 22,4 (1)
fixed - supported: 11,2 (2)
supported - supported: 5,6 (3)
fixed - free: 1,4 (4)

For safety reasons, a factor of 0.5 must be applied: