Step motor with circumferential stators on opposite sides of disc-like rotor

摘要: An electric step motor has a rotor member and stator aligned on common axis with one of the two members having pairs interdigital pole teeth extending perpendicularly to axis. The are axially spaced from each other inner in pair both radially circumferentially outer that pair. A coils associated for magnetizing opposite polarities when corresponding coil is energized. multiple permanent magnets located between so energization either draws into register selected teeth. polarized axial direction adjacent preferably directions, offset