Linear stepper motor, device and method for producing a linear stepper motor with a ball-bearing rotor shaft

摘要

Linear stepping motor with a fork-shaped adjusting rod (1) guided in a stator assembly (17) so that it is longitudinally displaceable, with a stator (5) and a bell-shaped rotor (6), on whose screw-threaded rotor shaft (13) designated as a spindle (13) the longitudinally displaceable adjusting rod (1) runs, the inner end of which forms a spindle nut section (9), the middle part of which is formed from two opposing parallel webs connecting the two ends, which on the drive side (D side) of the linear stepper motor through two openings (4) correspondingly recessed in the cover (4) 8) are guided against rotation, the stator (5) is designed as a stator assembly (17) fully encapsulated, characterized in that the spindle (13) only between two bearing balls (9) between a stator recess (14) of the stator encapsulation (12) and a cover recess (15) in the cover (4) is mounted to a point.