Contemporary gear trains are faced with increasing expectations pertaining high kinematic accuracy and non-backlashoperation in precision lathes and indexing heads [1], geardrives [2], especially inside mechanisms dealing with accuracyof motion as well as positioning systems [3,4]. Even the mostprecise conventional spur gear drives cannot provide nonbacklash operation of a machine. This results in the pursuit ofbacklash elimination by executing new designs [5–7], as well asmanufacturing gear train components with high accuracy[5,8]. These factors should be accompanied by optimal workingconditions, so as to diminish the wearing of components [9,10].The presence and variations of backlash in a drive is atypical situation resulting from manufacturing inaccuracy ofthe drive's components [5], imprecise installation [11–13],conditions of operation [14,6], drive components' thermalexpansion [15], wear of some of the components [9,10], etc.And so the strive to eliminate the backlash in kinematicsystems and drives is an important technological anddesign task.