The rotor electric motor is inside the stator and consists of a set of windings to rotate inside the stator. The electric motor rotor is composed of core, windings, rings and shaft.
The electric motor is widely used and in many sectors of the oil transportation industry and derivatives by pipelines and electric motor that receives the electric motor name induction. The electric induction motor has rotor of the squirrel cage which is caused by the rotor winding and its constitution has a copper bar or aluminum which are arranged to move and enclosed manner by rings which are metal and the conductive bars is engastam generating more rigid structure and the result is an effective geometry for the squirrel cage.
The rotor core electric motor serves to strengthen the electromagnetic field which is produced by the rotor windings and the core is made of layers also called steel sheet laminations that fit the rotor shaft.
The electric motor rotor and windings are fixed bars made of aluminum or copper and are short-circuited by closing the rotor rings.