Electric motor

A method of assembling an electric motor, the method comprising:

• providing a rotor assembly including a rotor shaft;
• providing a stator assembly including a core, an insulator at least partially covering the core, and a plurality of windings;
• providing a bus bar assembly including a non-conductive body and a plurality of conductors;
• ultrasonically welding the non-conductive body to the insulator;
• making an electrical connection between at least two windings of the plurality of windings and the plurality of conductors;
• and
• inserting a bearing within a bearing pocket of the non-conductive body, wherein the bearing pocket defines an outer circumferential surface, and wherein the insulator includes a coil protector portion having an inner annular surface, and wherein ultrasonically welding the non-conductive body to the insulator produces an ultrasonic weld located where the outer circumferential surface contacts the inner annular surface.