An electric machine has a stator and a rotor. The rotor is arranged on a rotor shaft that can be rotated about an axis of rotation. The stator surrounds the rotor radially on the outside with respect to the axis of rotation. The stator is surrounded radially on the outside by a one-piece housing with respect to the axis of rotation. As viewed around the axis of rotation, the housing extends only over a partial angular range. As viewed around the axis of rotation, a remaining angular range, in which the stator is not surrounded by the housing, thus remains. In end regions located at the ends of the partial angular range, the housing has housing-side form-closure elements, which cause a form closure of the housing with the stator in interaction with stator-side form-closure elements.

A double-jointed coupling includes a carrier ring with an internal tooth arrangement, a hollow pinion shaft connected to the internal tooth arrangement of the carrier ring, and an intermediate shaft with a coupling tooth arrangement for engagement in the internal tooth arrangement. The coupling tooth arrangement is constructed on the intermediate shaft such as to enable passage of the intermediate shaft through the hollow pinion shaft for passage through the hollow pinion shaft. A thrust ring is arranged on the intermediate shaft in a region of the coupling tooth arrangement and constructed for passage through the hollow pinion shaft.

A double-jointed coupling includes a carrier ring with an internal tooth arrangement, a hollow pinion shaft connected to the internal tooth arrangement of the carrier ring, and an intermediate shaft with a coupling tooth arrangement for engagement in the internal tooth arrangement. The coupling tooth arrangement is constructed on the intermediate shaft such as to enable passage of the intermediate shaft through the hollow pinion shaft for passage through the hollow pinion shaft. A thrust ring is arranged on the intermediate shaft in a region of the coupling tooth arrangement and constructed for passage through the hollow pinion shaft.