Electric motor, associated drive unit and associated electric vehicle

An electric motor, for an electric vehicle, the electric motor comprising:

• a housing,
• a stator, mounted inside of the housing and extending along a main axis,
• a rotor comprising a rotor shaft, the rotor being mounted inside of the housing and coaxially mounted inside of the stator, the rotor shaft comprising:
• a central portion, aligned with the stator along the main axis,
• a first lateral portion, offset from the stator along the main axis and located on a first side of the stator, along the main axis, and
• a second lateral portion, offset from the stator along the main axis and located on a second side of the stator opposed to the first side, along the main axis, an output shaft, coaxially mounted inside the rotor shaft, the output shaft having an inner end and an outer end, the output shaft being fixedly secured with the second lateral portion of the rotor shaft by interference fit of the inner end with the rotor shaft, the output shaft being configured to be driven in rotation around the main axis by the rotor shaft when the electric motor is powered,
• a gear, integral with the output shaft, the electric motor being configured so that axial loads exerted on the gear, along the main axis, are transmitted to the rotor shaft via the output shaft,
• a first rolling bearing assembly, the first lateral portion of the rotor shaft being mounted with the housing via the first rolling bearing assembly, the first rolling bearing assembly being located on the first side of the stator, along the main axis, and
• a second rolling bearing assembly, the second lateral portion of the rotor shaft being mounted with the housing via the second rolling bearing assembly, the second rolling bearing assembly being located on the second side of the stator, along the main axis,
• wherein one of the first and second rolling bearing assemblies is configured to transmit radial loads exerted on the rotor shaft, radially to the main axis, to the housing, and wherein the other of the first and second rolling bearing assemblies is configured to transmit radial loads exerted on the rotor shaft, radially to the main axis, to the housing and is configured to transmit axial loads exerted on the rotor shaft, along the main axis, to the housing.