A motor gearbox system includes a motor. The system further includes a mount configured to couple to the motor. The system also includes a housing configured to couple to the mount, and a coupler configured to couple to the housing, the coupler having at least one mounting feature configured to couple to a component. The system further includes a gear system operably coupled to the motor and configured to be disposed, at least in part, within a gearbox formed by the coupled mount, housing and coupler. The system includes an output shaft operably coupled to the gear system.

A swing gear set for a large scale or heavy machine can be produced from components of a swing gear set including an internal gear ring assembled from plurality of internal toothed segments and/or an external gear ring assembled from a plurality of external toothed segments. The internal toothed segments and/or the external toothed segments are produced by bisecting a metal block in the shape of a rectangular prism into first and second intermediate blanks. The metal block can be produced by a forging process and the intermediate blanks can be machined by various machining process to produce the finished internal and external toothed segments.

Apparatus and associated methods relate to a unitary ring gear-flange body (URGFB). In an illustrative example, the flange body may be spin-formed and may, for example, include a riser body extending substantially parallel to a longitudinal axis and a flange extending substantially radially outward from the riser body. To the riser body may, for example, be welded a ring gear to form a unitary assembly, the ring gear having an axis of revolution aligned with the longitudinal axis. A continuous coating may, for example, be applied to at least a selected portion of a surface of the unitary assembly. Various embodiments may advantageously provide a cost-efficient, weight-efficient, and/or time-efficient unitary body which may, for example, be coupled to machinery to provide a shaftless torque-transmitter.

Separate structural units for an inner gear and a housing of a planetary gear device include an inner gear with a first raised portion formed on the outer peripheral surface of the inner gear, where the first raised portion extends towards in a direction that is inclined with respect to the axial direction of the inner gear. A housing includes a second raised portion formed on an inner peripheral surface, where the second raised portion extends in a direction that is inclined in respect to the axial direction. The housing contains the inner gear such that there is a gap formed between the inner peripheral surface of the housing and the outer peripheral surface of the inner gear. Movement of the inner gear within the interior of the housing is limited through linear contact of the first raised portion and the second raised portion.

A reduction gear for a turbomachine (6) extending around an axis (X-X) of rotation, comprising a ring gear (9) connected to a ring gear carrier (12), wherein the ring gear carrier (12) has, according to a section view along a plane including the axis (X-X), an internal segment (124), an external segment (126) and a ring gear support (128), extending successively from the internal shaft (122) until the ring gear support (128), the internal segment (124) extends until a radius R1 with respect to the axis (X-X), the external segment (126) forms an angle β with the internal segment (124), the ring gear support (128) forms an angle α with the external segment (126), and is secured to the ring gear (9) via a bolted connection accomplished at a nominal radius R2 with respect to the axis (X-X), in that the ratio R1/R2 is comprised between 0.3 and 0.7.

Separate structural units for an inner gear and a housing of a planetary gear device include an inner gear with a first raised portion formed on the outer peripheral surface of the inner gear, where the first raised portion extends towards in a direction that is inclined with respect to the axial direction of the inner gear. A housing includes a second raised portion formed on an inner peripheral surface, where the second raised portion extends in a direction that is inclined in respect to the axial direction. The housing contains the inner gear such that there is a gap formed between the inner peripheral surface of the housing and the outer peripheral surface of the inner gear. Movement of the inner gear within the interior of the housing is limited through linear contact of the first raised portion and the second raised portion.

A ring gear assembly includes a ring gear, a gear box case, and a set of bolts. The ring gear includes a set of gear teeth inside the ring gear and arranged in a circle around the ring gear axis. The ring gear further includes a set of flanges arranged along at least one side of the ring gear. Each flange has a respective flange bolt hole therethrough, and each flange bolt hole has a respective bolt axis that is oriented perpendicular to the ring gear axis. The gear box case has a set of gear box bolt holes therethrough, each gear box bolt hole corresponding to a respective one of the flange bolt holes. Each of the bolts passes through a respective one of the gear box bolt holes and its corresponding flange bolt hole to fasten the ring gear to the gear box case.

A combination starter-generator device is provided for a work vehicle having an engine. The starter-generator device includes an electric machine and a gear set configured to receive rotational input from the electric machine and the engine. The gear set includes a ring gear formed by a cylindrical base with a perimeter surface facing the engine and a circumferential row of castellations extending in a radial direction from the perimeter surface. The starter-generator device further includes a mounting arrangement comprising a drive plate configured to be secured to a crank shaft of the engine and a flex plate mounted to the drive plate. The flex plate includes a row of engagement apertures configured to receive the castellations of the ring gear to rotationally couple the ring gear to the engine via the mounting arrangement.

Separate structural units for an inner gear and a housing of a planetary gear device include an inner gear with a first raised portion formed on the outer peripheral surface of the inner gear, where the first raised portion extends towards in a direction that is inclined with respect to the axial direction of the inner gear. A housing includes a second raised portion formed on an inner peripheral surface, where the second raised portion extends in a direction that is inclined in respect to the axial direction. The housing contains the inner gear such that there is a gap formed between the inner peripheral surface of the housing and the outer peripheral surface of the inner gear. Movement of the inner gear within the interior of the housing is limited through linear contact of the first raised portion and the second raised portion.

A gearwheel (10), in particular a parking interlock gear for a parking lock arrangement, includes an annular body with a radially acting first toothing (2), arranged on the outer circumference of the annular body (1), for the engagement of a locking pawl, an axially acting second toothing (3), arranged on a face end of the annular body and including a plurality of teeth (5) with oblique tooth flanks (5a, 5b), for the engagement of a corresponding axially acting third toothing (42), which includes teeth (44) with oblique tooth flanks (44a, 44b), of a shaft (40). A parking lock arrangement also includes the gearwheel.