Drive unit for a vehicle

A drive unit (10) for a vehicle comprising:

• an electric machine (12) having a rotor shaft (14) and a transmission (16) having a transmission shaft (18),
• wherein the transmission shaft (18) is rotatably mounted in a first housing section (22) by a first rolling bearing (20) and the rotor shaft (14) is rotatably mounted in a second housing section (26) by a second rolling bearing (24),
• wherein the transmission shaft (18) and the rotor shaft (14) are coupled to one another in a rotationally fixed manner,
• wherein a third rolling bearing (28) which comprises an inner bearing ring (30) is disposed at a transition between the transmission shaft (18) and the rotor shaft (14),
• wherein an inner surface (32) of the inner bearing ring (30) abuts the rotor shaft (14) and the transmission shaft (18),
• wherein the third rolling bearing (28) comprises an axially extended inner bearing ring (30) which projects axially from the third rolling bearing (28),
• wherein the third rolling bearing (28) comprises a shoulder (60) having an enlarged inner diameter on the inner bearing ring (30), and
• wherein the rotor shaft (14) abuts the inner bearing ring (30) with an outer peripheral surface (41) in this shoulder (60).