It belongs to the category of permanent magnet synchronous motors and serves as the active torque and speed generation component of traditional motors, but lacks a shaft, bearings, housing, or end brackets. A frameless motor consists of only two parts: the rotor and the stator. The rotor, typically the inner component, is a rotating steel ring assembly with permanent magnets, mounted directly onto the machine shaft. The stator, the outer component, features steel laminations and copper windings around its teeth, generating electromagnetic forces and designed to be tightly installed within the machine housing.