Electric motor e.g. stepper motor or brushless direct current motor, for use in actuator, has rotor axle that is radially guided by subjecting one or both sliding surfaces with force, where force presses axle ends at sliding surfaces

摘要

The motor has a rotor axle (20) whose ends (20a, 20b) stay in contact with sliding surfaces (31a, 31b) for axial guidance. The sliding surfaces are of plastic, and the rotor axle is radially guided by subjecting one or both the sliding surfaces with force. The force presses the axle ends at the surfaces, where a spring unit (40) is provided for producing the force. The rotor axle is provided with a worm gear for engagement in a drive.