A method for connecting a first component to a second component to form an assembly forms a press fit connection between the first component and the second component, for which purpose the second component is produced having an annular component section. A recess is formed, in which the first component is at least partially arranged. At least the annular component section of the second component is produced as a sintered component and has net shape or near net shape quality at least in the region of the recess.

A method of assembling a fan drive gear system includes the steps of installing spherical bearings into respective races to provide a plurality of bearing assemblies, mounting at least one of the bearing assemblies onto a corresponding shaft of a torque frame, each of the shafts fixed relative to one another, installing at least one gear onto at least one of the bearing assemblies, the gears meshing with a ring gear and a centrally located sun gear and grounding the torque frame to a static structure to prevent rotation of the torque frame.

A torque transmission and sealing assembly includes a ring gear having a first axial end, a second axial end opposite the first axial end, an inner surface including a plurality of teeth and an axial-facing surface at the first axial end, a barrel portion joined to the second axial end of the ring gear, and a plurality of annular, axial extending fingers integrally formed with the ring gear and extending from the axial-facing surface.

A method for connecting a first component to a second component to form an assembly forms a press fit connection between the first component and the second component, for which purpose the second component is produced having an annular component section. A recess is formed, in which the first component is at least partially arranged. At least the annular component section of the second component is produced as a sintered component and has net shape or near net shape quality at least in the region of the recess.

A gear device includes a first double helical gear, a two-step gear, a second spur gear, and an intermediate shaft The two-step gear includes a second double helical gear meshing with the first double helical gear, and a first spur gear on a back surface side of the second double helical gear. The second spur gear meshes with the first spur gear. A housing includes a shaft support hole and a meshing guide groove. The shaft support hole houses one end side of the intermediate shaft. The meshing guide groove meshes the second double helical gear with the first double helical gear by guiding the intermediate shaft along a pitch circle of the second spur gear to a proximity of the shaft support hole while maintaining the first spur gear meshing with the second spur gear. The meshing guide groove rises up at the proximity of the shaft support hole.

A gear device includes a first double helical gear, a two-step gear, a second spur gear, and an intermediate shaft The two-step gear includes a second double helical gear meshing with the first double helical gear, and a first spur gear on a back surface side of the second double helical gear. The second spur gear meshes with the first spur gear. A housing includes a shaft support hole and a meshing guide groove. The shaft support hole houses one end side of the intermediate shaft. The meshing guide groove meshes the second double helical gear with the first double helical gear by guiding the intermediate shaft along a pitch circle of the second spur gear to a proximity of the shaft support hole while maintaining the first spur gear meshing with the second spur gear. The meshing guide groove rises up at the proximity of the shaft support hole.

Alignment tools and methods are provided for assembling a planetary gear sets. The alignment tools include a handle, and an elongated pin having a tip configured to be inserted through a mounting hole of a housing of the planetary gear set, through a first hole in a first washer, through a bore of a pinion gear between pinion needle rollers arranged in a tubular pattern within the bore, and through a second hole of a second washer. The elongated pin is configured to align the first washer, the pinion gear, the pinion needle rollers, and the second washer during insertion therethrough. The elongated pin is retractable relative to the handle in response to a force being applied to the tip in a first direction along a longitudinal axis of the elongated pin.

A gear and methods for mating the gear to at least on further gear. The gear, for example an idler gear, comprises a gear ring rotationally mounted around a gear hub, the gear hub comprising an axial gear hub opening, wherein the gear comprises a further inner hub rotationally engaging the gear hub, the further inner hub being provided in the gear hub opening, the further inner hub being provided for predeterminedly translating the center of rotation of the gear ring by moving the gear ring and the gear hub with respect to the center of rotation of at least one further gear from a first predetermined position in which the gear mates with the at least one further gear with substantially no backlash to a second predetermined position in which the gear mates with the at least one further gear with a predetermined backlash.

A cassette for a bicycle may include a plurality of sprocket portions joined together into a single unit. The cassette may include a cavity formed in the large end of the cassette. A related manufacturing method may include joining a first generally planar sprocket portion having a plurality of connector portions extending transverse to the plane of the first sprocket portion, to a second generally planar sprocket portion, e.g., by fusing at least one of the connector portions to the second sprocket portion.

A motor vehicle powertrain (10, 210, 310) having a rear driveline module (RDM) (20) for driving a pair of rear wheels (14a, 14b) and a method of assembly can include a hydraulically actuatable rear axle coupling clutch (28) operable to transmit rotary power between an input pinion shaft (22, 222) and a rear differential case (30, 230) and a hydraulic actuating assembly (16). The powertrain (10, 210, 310) can include a hydraulically actuatable differential control clutch (34) mounted coaxial to the rear axle coupling clutch (28) and a power take-off unit (PTU) (36) having a hydraulically actuatable PTU coupling clutch (42). The differential control clutch (34) can provide for speed differentiation between the rear differential case (30, 230) and a half axle shaft (26a, 26b) drivingly connected to the pair of rear wheels (14a, 14b). The PTU coupling clutch (42) can transmit rotary power between an input shaft operable to receive rotary power from a front differential case and an output pinion shaft (40) interconnected with the input pinion shaft (22, 222) through a driveshaft (18) in an all-wheel drive mode.