The electric motor of three-phase induction rotor Ski cage has in its composition: a stator which is to be the core and the shell. The housing is nothing more than the outside of the electric motor is made of cast iron or steel plate and its function is to support the whole machine.
The core of the electric motor is made with iron sheets as well is formed a rigid package. In the interior, there are longitudinal slots in which the coils are housed.
The rotor or the armature is the part that moves the electric motor. Its composition is given with busbars which are closed in a short circuit through the ring. These bars is to form the squirrel cage.
When the electric motor is small, the driving rods and the short-circuit rings are made of aluminum alloys which can be cast or injected.