Examining the operational parameters of electric drives and diverse electrical equipment regarding reliability and longevity of bearing units reveals that wear or deviations in linear dimensions and geometric conformity of the bearing seats from regulatory standards result in a disturbance of the harmonized configuration of electric motor components, particularly their rotors. The variance in linear dimensions and geometric conformity of bearing seating areas results in an alteration of the air gap between the rotor and the stator of electric motors. Consequently, this alteration induces a reduction in both the power factor cosφ and the efficiency coefficient η, affecting not only the electric motor but also the entire electric drive system. Examination of technical data and literature reveals that details regarding the extent and form of wear on bearing housing apertures for rolling bearings are frequently probabilistic and contingent upon the operational conditions and modes of electric drive operation.