A planetary gearbox includes a first planetary stage with a component, a sun gear, and a planet gear meshing with the sun gear via a toothing system, a second planetary stage, and a lubricant transfer device arranged between the first planetary stage and the second planetary stage. The lubricant transfer device includes a discharge component arranged in a co-rotating manner on a component of the second planetary stage, and a receiving component designed to receive lubricant and arranged in a co-rotating manner on the component of the first planetary stage. A lubricant conduit communicates with the lubricant transfer device and is configured to extend over an entire axial extent of a tooth engagement region of the sun gear of the first planetary stage radially within the toothing system of the sun gear with the planet gear of the first planetary stage.

A transmission assembly including a housing, an electric motor, and a baffle is provided. The housing may include first and second drainage channels. The electric motor may be disposed within the housing adjacent the drainage channels and a torque converter. The baffle may be disposed within the housing upon a housing inner surface, and may define an opening to the first and second drainage channels. The baffle may include a baffle flange sized for positioning adjacent the torque converter to minimize contact of oil within the housing to the torque converter. The housing may define first and second partition walls each partially extending over one of the first and second drainage channels. The baffle may further include first and second seal features each disposed at one of two baffle ends.

A system has an input shaft driving a first gear and supported by at least one input shaft bearing. The first gear drives at least a second gear. The second gear drives an output shaft. The output shaft is supported by at least one output shaft bearing. A gear bearing also supports at least one of the first and second gears. Lubricant movement structure is associated with at least one of the first and second gears for moving lubricant in an axial and in a radial direction to drive the lubricant toward at least one of the shaft bearing and the gear bearing. A spacecraft is also disclosed.

A hybrid module shaft assembly includes a rotational axis, a housing with a tubular portion, a shaft extending through the tubular portion, a first seal, a first ball bearing, and a plain bearing. The tubular portion has a first distal end arranged on an engine side of the housing, and a second distal end arranged on a transmission side of the housing. The first seal is arranged to seal the shaft to the first distal end, and the first ball bearing is disposed on the engine side adjacent to the first seal to position the shaft in the tubular portion. The plain bearing is arranged at the second distal end to position the shaft.

The present disclosure relates to a powertrain assembly for an industrial vehicle, including: an axle housing receiving an output wheel, a geartrain including: a first input shaft, a second input shaft, an output shaft engaged with the output wheel, 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.

Provided is a multiplate wet clutch having capability of preventing damage of an axial groove portion formed in an inner cylindrical portion of a shaft.

An inner cylindrical portion 3 of the shaft is formed with an axial groove 75 which is opened to a circumferential groove 53 and with which other members of the multiplate wet clutch for regulating movement of a retaining ring 55 toward axially on the other side are to be engaged. A pressure plate 35 is formed, on a surface 36b axially on the other side thereof, with a recessed portion 77 axially opposed to an opening portion 81 of the axial groove 75 through the retaining ring 55.

A gear unit includes a shaft and a housing part. A bearing is received in the housing part, and a flange part is connected to the housing part. The flange part is sealed from the shaft using a first and a second labyrinth seal, and the first labyrinth seal is axially spaced apart from the second labyrinth seal. The shaft has an elevation that is arranged axially, e.g., in the axial direction, between the first labyrinth seal and the second labyrinth seal.

An apparatus comprising: a flywheel mounted on a flywheel shaft; a bearing arrangement on which the flywheel shaft is supported; a gearing arrangement for torque coupling the flywheel to a drive member; a sealing arrangement; and a housing for containing the flywheel, bearing and gearing arrangements, the gearing arrangement being arranged to be in torque transmitting engagement with the flywheel, via the flywheel shaft, and having an engagement means for being in torque transmitting engagement with the drive member, the sealing arrangement comprising a pair of seals, defining a cavity, and forming a hermetic seal, between the engagement means and the housing, whereby, in use, a first pressure is maintained within the housing that is lower than a second pressure outside of the housing, and the seals retain a fluid within the cavity, and maintain the fluid at an intermediate pressure between the first and the second pressure.

A gearbox vent apparatus includes: a gearbox; an accessory contained in a case mounted to the gearbox such than an interior space of the case communicates with an interior space of the gearbox, wherein the case includes a sidewall and an endwall, a hollow drive shaft mounted for rotation inside the case; an annular first seal element mounted to the drive shaft; an annular second seal element mounted to the case and contacting the first seal element so as to define a sealing interface; and a vent tube having a forward end coupled to the endwall in fluid communication with the drive shaft.

A drive device mounted on a vehicle, the drive device comprising: an electric motor housed in the electric motor chamber; a first shaft arranged parallel to or coaxial with a rotor shaft of the electric motor; a counter gear for transmitting rotation of the rotor shaft to the first shaft; a second shaft for rotating wheels of the vehicle; a hypoid gear for transmitting rotation of the first shaft to the second shaft; an oil seal for sealing a gap between the first shaft and the case; a first lubricating oil housed in the electric motor chamber and the counter gear chamber; and a second lubricating oil housed in the hypoid gear chamber.