A drive unit is disclosed that includes case portions, a gasket interposed between the case portions, shafts, bearings having respective bearing races, and a bearing shim plate. One shaft includes an input oil tube which provides a fluid pathway between the bearing shim plate and a rotor of the drive unit. Interposed between bearings, and the bearing shim plate, are shims. An approach for sizing shims for use with a drive unit is also disclosed, the approach including determining the distance from a mating flange of a case portion, to different bearing races, selecting shims based on the determined distances, and attaching the bearing shim plate to the case portion with shims interposed therebetween.

A carrier arrangement of a planetary gear, in particular a planetary gear of a side door drive, includes a planetary carrier, preferably in one-piece, with a flange that extends along a rotational axis (APT) and which is provided with a first side and a second side, at least one planetary wheel, which is retained at a distance from the pivoting axis (APT) and is pivot-mounted around a planetary wheel rotational axis (APR), wherein at least one recess is arranged between the first side and the second side, in which the at least one planetary wheel is pivotally mounted and retained by means of at least one planetary wheel axle, wherein the planetary carrier and the planetary wheel are made of plastic and the planetary wheel axle is made from steel or plastic. The disclosure relates, moreover, to a method for the manufacture of such a planetary carrier arrangement.

An electric drive unit and method of assembling the same is disclosed. The electric drive unit includes a rotor having a rotor shaft, and gear shaft, where the rotor shaft is inserted into the gear shaft. The gear shaft is supported by two bearings, while the rotor shaft supported directly at one end by a bearing and at the other by the gear shaft. A wave spring is also disclosed that provides an axial loading to the rotor shaft. Also disclosed is a balancing ring secured to an end of the rotor via a locknut. The balancing ring can be machined in order to balance the rotor. The rotor shaft can be connected to the gear shaft via a spline connection. The rotor shaft can bear against the gear shaft via a pilot journal and pilot bore defined on the rotor shaft and gear shaft respectively.

A gear box and method of providing oil through the same is provided. The gear box includes a windage tray that includes a tray having a bleed hole therein, and another tray having another second bleed hole therein. Oil is provided through the bleed holes to respective gears situated in the trays. The windage tray may also include a magnet positioned within a magnet slot of the windage tray, for removing debris from the oil. A tube may also be attached to the windage tray, which tube can include a bleed hole therein, for spraying the oil out of the tube and towards a differential, for example. The windage tray and tube can be made from molded plastic, and can be made using the same mold. The gear box housing may further define a drain in an inner side wall to provide oil to a differential bearing, for example.

The invention proposes an actuator for a component of a land motor vehicle, of the type including an actuator casing (12) which is produced by injection molding of thermoplastic polymer material and which delimits an internal volume in which are arranged: at least one electric motor (16), and an internal mechanical transmission (18) comprising at least a first gear wheel (24), which has an axis of rotation (A2) perpendicular to the axis of rotation (A1) of the drive shaft (20), characterized in that the first gear wheel (24) has a toothing (28), called axial toothing, which is formed of gear teeth having a bottom-top extension according to the direction of the axis of rotation (A2) of the first gear wheel (24), and which meshes with the output pinion (22) of the electric motor (16).

A gear-box casing in a gas turbine engine, in particular an aircraft engine, characterized in that the gear-box casing has partially a region including fiber reinforced plastic, the fibers in this region being arranged only in an angular range of +/40 to 50, in particular of +/42 to 48, most particularly +/45, in relation to the main axis of rotation of the gear-box casing. The invention also concerns a method for producing a gear-box casing and a gas turbine engine.

A housing for a motor-transmission unit with at least two housing sections which have in each case at least one accommodation segment for receiving a motor and an internally-toothed, internal ring gear segment for receiving a gear of a planetary gear unit, wherein the housing sections can be or are connected with each other and wherein, in the assembled state, the accommodation segments of the housing sections together form at least one accommodation compartment for holding the motor, and the internal ring gear segments of the housing sections together form an internal ring gear for mating with a gear on the planetary gear unit.

A housing for a plastic gearbox and associated plastic gearbox and a robot. The housing includes a body including an inner engaging portion circumferentially arranged on an inner surface of the body, the inner engaging portion adapted to be engaged with a transmission assembly of the plastic gearbox; and an adjusting mechanism arranged around the body and operable to squeeze the body inwardly to reduce an inner diameter of the body. By using the adjusting mechanism to squeeze the body of the housing inwardly, the fit error between the inner engaging portion and the transmission assembly can be compensated in an efficient way. Furthermore, the adjusting mechanism is a part of the housing and thus the body of the housing which is made of plastic does not need to be too thick, which makes injection molding easier and manufacturing precision improved.

A deceleration mechanism is provided with first and second gears, a first tooth part arranged in the first gear and extending spirally in an axial direction of the first gear, an engagement projected part arranged on the first tooth part, second tooth parts arranged on the second gear, and an engagement recessed part arranged between the adjacent second tooth parts. The engagement projected part is formed in an arc shape in a direction orthogonal to the axial direction of the first gear and has a curvature center eccentric from a rotation center of the first gear. The second tooth parts are inclined with respect to the axial direction of the first gear and arranged in a circumferential direction of the second gear. The engagement projected part is formed in an arc-shape in a direction orthogonal to the axial direction of the first gear and engaged with the engagement projected part.

A deceleration mechanism is provided with first and second gears, a first tooth part arranged in the first gear and extending spirally in an axial direction of the first gear, an engagement projected part arranged on the first tooth part, second tooth parts arranged on the second gear, and an engagement recessed part arranged between the adjacent second tooth parts. The engagement projected part is formed in an arc shape in a direction orthogonal to the axial direction of the first gear and has a curvature center eccentric from a rotation center of the first gear. The second tooth parts are inclined with respect to the axial direction of the first gear and arranged in a circumferential direction of the second gear. The engagement projected part is formed in an arc-shape in a direction orthogonal to the axial direction of the first gear and engaged with the engagement projected part.