The invention relates to an electric motor (1) comprising an electrically conductive motor housing (2) which encloses a stator (7), a rotor (3), and a commutator (8) ground by a brush system (9) and which has an opening (13) for a motor shaft (4) on one side. The brush system (9) includes a pot-type support housing (12) which closes the opening (13) of the motor housing (2), is made of electrically conductive plastic, and has a central shaft opening (16) to allow the motor shaft (4) to pass therethrough.
