The shaft calculation module allows in-depth analysis and standard-conformant verification of static strength, time yield, and fatigue strength of shafts and axles. Building on a beam model, stresses and deformations are calculated using a finite element core. With this core, strength can be verified, bearing reaction forces can be determined, etc. The critical speed for flection and torsion can be calculated, as can buckling load. Particularly for cylindrical gears, flank deformation can be determined, and load distribution over the flank can be displayed, with consideration of crowning and helical angle corrections.