FIELD: electromechanical engineering. SUBSTANCE: motor is provided with additional pair of bearings, pair of shaft-endplate assemblies, draw-out weights, and power elements. One shaft-endplate assembly has central bore coupled with power elements and commutator and second is running shaft. Shaft-endplate assemblies are mounted for controlling axial displacement and have brake shoes installed for engagement of rotor. EFFECT: provision for speed control and improved smoothness of rotation. 2 cl, 2 dwg
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