FIELD: d c electric motors. SUBSTANCE: electric motor has res and spring, mounted in the case. The rest is disposed in one end of rotor shaft. Rotor is mounted for axial movement and is compressed by spring from the other end of the shaft, that results to capability to change value of air space under effect of external force and to change adjusting characteristics of electric motor correspondingly. EFFECT: improved capability of changing air space and characteristics of electric motor. 2 dwg
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