The present invention relates to an electric motor. The electric motor according to an embodiment of the present invention comprises: a cylinder-shaped electric motor case; an electric motor shaft mounted rotatably on the center of the electric motor case; a magnet mounted on an inner circumferential electric motor case; a coil mounted to correspond to the magnet; a brush mounted between the coil and the electric motor shaft and connected to an external power to transmit the current; and a commutator supplying the power to the coil by receiving the power from the brush.
