20150311767 | MOTOR - A motor includes a stator unit, a rotor unit, and an anti-friction bearing unit. The stator unit includes a coil winding assembly. The rotor unit includes a permanent magnet assembly disposed to radially confront the coil winding assembly, and is rotatable relative to the stator unit as a result of electromagnetic forces acting between the permanent magnet assembly and the coil winding assembly. The anti-friction bearing unit is disposed between the stator and rotor units so as to stabilize rotation of the rotor unit. | 10-29-2015 |