The stationary part that typically houses the primary windings.
The design of rotating electrical machines is a complex blend of electromagnetic theory, material science, and mechanical engineering. Whether you are developing a high-speed motor for an electric vehicle or a large-scale industrial generator, the design process follows a rigorous path to ensure efficiency, reliability, and performance.
Rotating Electrical Machine - an overview | ScienceDirect Topics
The moving part that rotates within or around the stator.