Abstract: The invention relates to an electric machine (5), in particular for a motor vehicle, comprising a housing (9), at least one shaft (8), a stator (6), a rotor (7), a cooling circuit for cooling the electric machine (5) using a liquid, in particular oil, wherein the liquid can be conveyed from at least one at least partially radially aligned channel (11) into at least one rotating part (12) of the electric machine (5) due to a rotational movement of the at least one channel (11), at least one outlet opening (13) for draining the liquid from the at least one channel (11), wherein the electric machine (5) is provided with at least one agent (14) for reducing the conveyed amount per unit time of liquid that can be conveyed from the at least one channel (11) due to the rotational movement of the at least one channel (11).