Abstract: Disclosed is a permanent magnetic direct current motor apparatus which provides high constant torque and constant speed through a large stepping angle under varying output shaft load conditions. The apparatus includes a rotor, a plurality of stators and an electronic control device for providing a constant torque and speed. The rotor is constructed of a cylindrical homogeneous core having an outer, segmented ring formed from a plurality of permanent magnets. The magnets are of alternating polarity and are divided into groups. There is a stator apparatus surrounding the rotor which is composed of cylindrically spaced rows of electrically conductive coils radially spaced apart. A timing disk concentric with and rotating with the rotor senses the speed of the rotor and feeds back periodic timing pulses to an electronic switching system to control the current through the stators. The stators are electromagnetically coupled to the permanent magnet rotor surface.