Abstract: An electrical machine, in particular for use in a hybrid or fully electrical power train of a motor vehicle includes a stator and a rotor coaxially and rotatably arranged therein; a balancing disk for receiving and/or removing at least one balancing mass arranged on the rotor for conjoint rotation therewith, the balancing disk rotating in a radial plane of the rotor and being impinged by cooling fluid that is conducted radially outwards along at least one face under the effect of centrifugal force when the balancing disk rotates. On its face, the balancing disk includes a first fluid conducting element which runs radially more and more outwards in the axial direction out of the balancing disk such that the cooling fluid can be directed from the balancing disk toward the stator at an angle ? relative to the radial plane when the balancing disk rotates.