Electrical machine comprising: - a stator comprising an electrically conductive winding support electrically connected with earth or a reference potential and a central body defining a rotation axis and a stator winding, - a bearing arrangement comprising a first bearing arranged on the central body and a second bearing arranged on the central body, wherein the winding support of the stator is arranged in an axial direction parallel to the rotation axis between the first bearing and the second bearing, - a rotor rotatably supported around the rotation axis by means of the bearing arrangement, - an electrically conductive first shielding unit electrically connected with earth or a reference potential that comprises a first ring part extending in a ring-shaped manner in a circumferential direction around the rotation axis and extending starting from a radial inner end radially outward to a radial outer end, wherein the radial inner end is arranged between the first bearing and the winding support and is connected with the central body, - an electrically conductive second shielding unit that is electrically connected with earth or a reference potential that comprises a second ring part extending in a ring-shaped manner in circumferential direction around the rotation axis and extending starting from a radial inner end radially outward to a radial outer end, wherein the radial inner end is arranged between the second bearing and the winding support and is connected with the central body, characterized in that the first ring part and/or the second ring part comprise through-holes arranged with distance to one another in circumferential direction, the respective edge of which has a first edge section arranged at an air guide part, wherein the air guide part extends obliquely over the through-hole and a second edge section of the edge of the respective through-hole oppositely arranged in circumferential direction, is offset in axial direction relative to the first edge section. - a stator comprising an electrically conductive winding support electrically connected with earth or a reference potential and a central body defining a rotation axis and a stator winding, - a bearing arrangement comprising a first bearing arranged on the central body and a second bearing arranged on the central body, wherein the winding support of the stator is arranged in an axial direction parallel to the rotation axis between the first bearing and the second bearing, - a rotor rotatably supported around the rotation axis by means of the bearing arrangement, - an electrically conductive first shielding unit electrically connected with earth or a reference potential that comprises a first ring part extending in a ring-shaped manner in a circumferential direction around the rotation axis and extending starting from a radial inner end radially outward to a radial outer end, wherein the radial inner end is arranged between the first bearing and the winding support and is connected with the central body, - an electrically conductive second shielding unit that is electrically connected with earth or a reference potential that comprises a second ring part extending in a ring-shaped manner in circumferential direction around the rotation axis and extending starting from a radial inner end radially outward to a radial outer end, wherein the radial inner end is arranged between the second bearing and the winding support and is connected with the central body,