Which component is NOT usually part of a stator assembly?

In a typical stator assembly, the components generally include windings, a frame, and a laminated stator. The windings are integral for creating the magnetic field when electricity flows through them, while the frame provides the necessary structural support and housing for the other components. Laminated stators are used to minimize energy losses due to eddy currents and enhance overall efficiency.

The commutator, on the other hand, is not a part of a stator assembly. Instead, it is associated with the rotor in applications such as brushed DC motors. The commutator's function is to reverse the direction of current flow through the rotor windings, allowing for continuous rotation. Thus, it is more accurate to identify the commutator as the component that does not belong to the stator assembly.