Motor having stator assembly with integrated mounting and heat sink features

A step motor, comprising:

• a stator assembly having a lamination structure defining a plurality of stator poles with stator teeth thereon and with stator windings coiled around the stator poles, the lamination structure further defining a plurality of mounting holes therethrough located radially outward from the stator poles;
• a rotor-shaft assembly having a rotor on an axial shaft, the rotor having a rotor teeth thereon;
• and
• a pair of end caps, each with a central bearing assembly for mounting the rotor-shaft assembly concentrically within the stator assembly such that stator teeth and rotor teeth are uniformly spaced proximate to one another so as to interact electromagnetically for rotor rotation;
• wherein the mounting holes are adapted to receive mounting screws such that the lamination structure provides a mounting surface that will be in direct contact with a mounting plate whenever the step motor is mounted onto such plate by means of the mounting screws.