An axle assembly with a housing, a shaft received in the housing, a shaft bearing supporting the shaft for rotation relative to the housing about a shaft axis, a differential assembly, an annular band and a secondary retainer. The shaft bearing has an inner race, which is received on and directly engaged to the shaft, and an outer race that is received on and directly engaged to the axle housing. The differential assembly has an output member that is non-rotatably coupled to the shaft. The annular band is fixedly coupled to the shaft at a location along the axle shaft axis between the inner race and the output member. The secondary retainer is disposed along the axle shaft axis between the annular band and the output member and is configured to limit movement of the annular band along the axle shaft axis in a direction toward the output member.

A vehicular power transmission device includes a differential mechanism including a pair of side gears, an inner case, and an outer case, a pair of side gear shafts respectively connected to the side gears and transmitting power to a pair of wheels, a clutch mechanism including a clutch hub, a clutch drum, a friction engagement element, and a piston, and an actuator configured to drive the piston, in which the clutch hub and the clutch drum include meshing teeth, the piston includes first meshing teeth and second meshing teeth, and the clutch hub, the clutch drum, and the piston are configured to switch an operation mode of the vehicular power transmission device to a first mode and a second mode.

A differential gear assembly for a vehicle includes: an annular ring gear having internal and external surfaces, and rotates around a rotational axis extending in an axial direction; first and second side gears respectively distribute a first and second output torque to first and second drive shafts; first and second differential pinion gears respectively engage the first and second side gears; a pinion pin extends diametrically across the ring gear, where the first and second differential pinion gears are rotatably arranged on the pinion pin. The ring gear comprises first and second slots for receiving the pinion pin, where the slots are arranged in connection to the internal surface and extend partly through the ring gear in the axial direction.

The power transmission device includes a speed reducer and a differential. The speed reducer includes a sun gear fixed to a hollow input shaft, stepped pinions, first and second ring gears. The stepped pinion has input and output gears, with the input gear engaging the sun gear. A first ring gear is fixed to a housing and engages the input gear. The second ring gear engages the output gear. The differential has a differential housing and first and second output shafts. The differential housing is fixed to the second ring gear. The first and second output shafts are arranged concentrically with the input shaft and extend in opposite directions from the differential housing. One of the first output shaft and the second output shaft passes through the inside of the input shaft. The differential housing is positioned to be surrounded by the output gears of the stepped pinions.

A differential may include a metal plate interlocking with a pinion, and at least one permanent magnet fixable to a case of the differential to generate an eddy current in the metal plate upon a relative rotation of the metal plate.

A transaxle according to the present application may include: a transaxle case; an input member supported within the transaxle case; a gear drivingly connected to the input member within the transaxle case; an output member which is supported within the transaxle case and arranged at the inner peripheral side of the gear concentrically with the gear; a cage with a roller as a bidirectional overrunning clutch interposed between the inner periphery of the gear and the outer periphery of the output member within the transaxle case; and a drag mechanism provided within the transaxle case to apply rotational resistance to the cage to make the bidirectional overrunning clutch be engaged. The cage has a first end and a second end, which oppose each other in an axial direction of the output member. The first end of the cage is close to a first bearing which pivotally supports the output member to the transaxle case. The drag mechanism has a rotation member which is locked to the cage at the first end of the cage so as to be relatively non-rotatable, and a spring member for applying the rotational resistance to the rotation member.

A differential gearbox is for receiving rotational power from a power unit (a motor and a gear) of a 1000 cc motorcycle via a drive shaft, where both the power unit and the differential gearbox are disposed centrally with respect to a transverse dimension of a Formula 1000 category race car chassis. The differential gearbox comprising a stationary differential gearbox case, an input shaft and a pinion sprocket, a power receiving sprocket that is rotatable by the input shaft and the pinion sprocket, a gearbox differential transmission assembly that is mechanically powered by and rotatable with the power receiving sprocket about a common axis, and two output drive shafts rotatable by the differential transmission assembly in different rotation speeds.

A vehicle powertrain may include a differential assembly having a housing disposed partially in a lubrication reservoir. The differential assembly translates rotational motion of a pinion gear to a pair of axle shafts extending from the housing and permits different rotational speeds of the axle shafts. One or more components of the differential assembly, e.g., one or more side gears, may include a plurality of radial grooves configured to distribute a lubricant from the lubrication reservoir while the first side gear rotates.

A differential is disclosed for use with a drivetrain of a mobile machine. The differential may have an input gear, a first side gear, a second side gear, and a side pinion disposed axially between and intermeshed with the first and second side gears. The differential may also have a carrier nested inside of the input gear and connected to the input gear and the side pinion. The carrier may at least partially surround the first side gear and the second side gear.

A differential apparatus includes a differential gear mechanism in which side gears mesh with pinion gears, a pinion shaft that rotatably supports the pinion gear, a slide member that supports the ends of the pinion shaft, and pinion gear washers each disposed between the slide member and a corresponding one of the pinion gears. Movement of each pinion gear washer toward the slide member in the axial direction of the pinion shaft is restricted. When a force of the pinion gear pressing the pinion gear washer toward the slide member is less than a predetermined value, a clearance is formed between the slide member and the pinion gear washer. When the force of the pinion gear pressing the pinion gear washer toward the slide member is greater than the predetermined value, the outer surface of the pinion gear washer abuts the inner surface of the slide member.