The invention relates to a gearbox (40) having a park lock (42) which is integrated in a gearbox housing (60) of the gearbox (40). Said park lock comprises a transfer device (48), a detent (50), and a park lock gear (52). Outside the gearbox housing (60) there is an electromechanical actuator (44), which is centred on an interface to the transfer device (48) on the gearbox housing (48) and is sealed off from the gearbox housing (60) there.

A work of incorporating a speed reduction mechanism including a scissors gear into a gear case is facilitated. In a state where the angular positions of gear teeth of a first gear and the angular positions of gear teeth of a scissors gear are made to coincide with each other against the elastic force of a torsion spring (19), these angular positions are fixed by a fixing member (position fixing step). The first gear, the scissors gear, and a second gear are housed in a gear case, and the gear teeth of the second gear are made to engage with the gear teeth of the first gear and the gear teeth of the scissors gear (gear incorporating step). The fixing of the angular position of the first gear and the angular position of the scissors gear by the fixing member is released through an opening formed in the gear case.

A transmission case having a storage area inside for an assembling member, includes a first opening opening in the storage area; a seating portion provided in the storage area and on which the assembling member inserted from an opening direction of the first opening is to be seated; and a mirror-finished portion allowing an opposite portion of the assembling member facing the seating portion to be visually recognized when the assembling member is being inserted to the first opening from the opening direction.

Coaxial gear mechanism (1), with a toothing (5) oriented axially relative to a rotational axis (3) of the coaxial gear mechanism (1), a tooth carrier (7) with axially oriented guides (9), teeth (11) which are received in the guides (9) for engagement with the toothing (5), wherein the teeth are oriented with their respective longitudinal axes (13) axially in the guides (9) and are mounted so as to be axially movable in the guides (9), and a cam disk (15) which is rotatable about the rotational axis (3) for axially driving the teeth (11), wherein a plurality of bearing segments (17) is arranged between the cam disk (15) and the teeth (11) for supporting the teeth (11).

The present invention relates to a cycloidal speed reducer and a manufacturing method thereof, and more particularly, to a thin cycloidal speed reducer and a manufacturing method thereof that are capable of achieving a thin structure through an input member with a hollow portion.

A hybrid transmission device, comprising an electric machine, wherein the electric machine has an externally situated stator and an internally situated rotor shaft, wherein the hybrid transmission device furthermore comprises a transmission in a transmission housing and a clutch in a clutch housing, wherein the stator is fastened in the transmission housing, wherein the rotor shaft has, at a first end, a pinion that meshes with an intermediate gear of the transmission, wherein the rotor shaft is mounted in the region of the first end and in the region of the oppositely situated second end of the rotor shaft by means of a first and a second bearing, wherein an intermediate plate fastened to the stator is arranged axially in the region of the first end of the rotor shaft, wherein the second bearing for the mounting of the second end of the rotor shaft is fixed directly in the clutch housing, and the first bearing for the mounting of the first end of the rotor shaft is fixed to the transmission housing or is fixed to the intermediate plate, and a method for assembling a hybrid transmission device of said type.

A gear includes at least one gear tooth and an electrode mounted to the at least one gear tooth along a contact face of the at least one gear tooth. A flowable dielectric material is positioned on the contact face of the at least one gear tooth. The dielectric material is structured to be movable along the contact face of the at least one gear tooth responsive to a gravity force.

A pump assembly comprising at least one housing and two gear wheels. The housing comprises at least one base plate and a cover element, which are interconnectable to form a pressure chamber. An outer circumferential surface of each of the two gear wheels has a toothing, and the gear wheels intermesh via the toothings to convey a fluid. The gear wheels are arranged along an axial direction in the pressure chamber between the base plate and the cover element. The pressure chamber is formed in the housing at least by two bores. The first gear wheel is arranged in a first bore and the second gear wheel is arranged in a second bore. Centering pins are provided for aligning the bores and the gear wheels with respect to one another, wherein all centering pins are arranged exclusively in the cover element or exclusively in the base plate.

A method of assembling a modular hybrid transmission (MHT) is provided including (a) assembling an emotor clutch on a clutch shaft to form a clutch assembly, (b) press-fitting a bushing into a centering plate to form a centering assembly, (c) connecting the centering assembly to a torque converter, (d) assembling the torque converter to the clutch assembly with the bushing on an end of the clutch shaft, and (e) inserting the clutch assembly and the torque converter into a transmission housing while maintaining the centering of the clutch shaft to the transmission housing via the centering assembly connected to the torque converter. The assembled MHT is also provided which eliminates the needle bearing according to the prior art, avoiding the potential for damage during assembly.

A transmission arrangement for a vehicle includes an axial direction and a radial direction, a rotatable gear wheel having radially outer teeth for meshing engagement with a further gear member, and axially protruding engagement members, a first annular transmission member arranged next to the gear wheel and having corresponding axially protruding engagement members in torque transmission engagement with the engagement members of the gear wheel, and an annular groove provided in a radially facing surface, a second annular transmission member in torque transmission engagement with the first annular transmission member and having an annular groove provided in a radially facing surface and arranged radially overlapping with the annular groove of the first annular transmission member such that said annular grooves jointly define an annular space, and a locking member located within said annular space for axial locking of the first and second annular transmission members relative to each other.