US Patent 7847449 Modular electric motor drive unit

An electromotor for regulating a drive in a motor vehicle. The electromotor includes an armature spindle mounted in a pole housing that includes a shell. At least on one front side of the shell a bearing cover is coupled thereon to accommodate an armature spindle bearing. The electromotor also includes a radial molding formed on the pole housing that receives a guide track of a gear assembly housing via radial insertion to fasten the electromotor to the gear assembly housing without the use of additional fasteners.