Powertrain assembly for an industrial vehicle

A powertrain assembly for an industrial vehicle, comprising:

• an axle housing receiving an output wheel,
• a geartrain comprising:
• a first input shaft,
• a second input shaft,
• an output shaft engaged with the output wheel, and
• an oil circulation pump configured to supply oil to gears of the geartrain,
• a first electric motor, comprising a rotor coupled to the first input shaft of the geartrain, the rotor being supported by a first sealing and bearing assembly,
• a second electric motor, comprising a rotor coupled to the second input shaft of the geartrain,
• a first oil supply channel configured to supply some of the oil flow of the oil circulation pump to the first sealing and bearing assembly,
• in which the rotor of the second electric motor is supported by a second sealing and bearing assembly, the powertrain assembly comprising:
• a first chamber in fluidic communication with the first sealing and bearing assembly, in which the first oil supply channel opens into the first chamber,
• a second chamber in fluidic communication with the second sealing and bearing assembly, and
• a second oil supply channel configured to convey some of the oil from the first chamber to the second chamber so as to lubricate the second sealing and bearing assembly,
• in which the first chamber is disposed at a higher height than the second chamber, along a vertical axis, when the powertrain assembly is in a nominal installation position in the vehicle.