Quote Originally Posted by SiRed94
Well, there is an external casing that has two magnets mounted on either side of it. Then there is an armature/rotor assembly that is wound with copper wire that protrudes through the center of it and out through the front of the casing. Then there is usually a gear connected to the portion protruding from the casing. And on the other end of the armature shaft there is a cap to the casing that contains some brushes that transfer electrical current to the armature. When the casing is charged with - current and the armature is charged with + current the armature will begin to spin inside the magnets.
I'm glad someone knows the difference!