A method of controlling an axle assembly. At least one wheel hub may be operatively connected to a differential assembly having a ring gear when the ring gear does not receive torque from a torque source. Torque from the wheel hub may rotate the ring gear and the ring gear may provide splash lubrication.

A gear for use in a transmission system. The gear comprises an outer annular element having gear teeth on a radially outer surface thereof and an inner support element arranged coaxially with the outer annular element. The gear further comprises first and second opposing side walls, each side wall extending from the outer annular element to the inner support element to form an annular space. At least one of the first and second side walls extends from the outer annular element at an angle greater than 0 degrees with respect to a direction perpendicular to the rotational axis of the gear.

A final drive for a motor vehicle, with a first input shaft, a second input shaft, a first output shaft and a second output shaft, the first input shaft being permanently coupled to the first output shaft by a first crown gear drive and the second input shaft being permanently coupled to the second output shaft by a second crown gear drive. The first input shaft and the second input shaft are arranged coaxially with each other and the first output shaft and the second output shaft extend in opposite directions starting from the respective crown gear drives, an axial plane extending the rotational axes of the input shafts and encloses a plane perpendicular to the axis plane with the rotational axes of the output shafts.

A vehicle driveline component having a limited slip differential with a differential gearset and a pair of clutch packs received in a differential case. The differential gearset employs side gears that are meshed with first differential pinions, which are mounted about a first pin axis, and second differential pinions, which are mounted about a second pin axis that is not perpendicular to the first pin axis. The teeth of the first differential pinions are formed with drive side having a first pressure angle. The teeth of the second differential pinions are formed with a coast side having a second pressure angle that is different from the first pressure angle. The teeth of the side gears are asymmetric and have a first side, which is formed with the first pressure angle, and a second side that is formed with the second pressure angle.

A method for manufacturing a differential device includes a first step and a second step. The first step is to cast a differential case by pouring molten cast iron into, via a gate, a mold having, on a mold surface, a mark formation site that has a specific positional relationship to the gate. The second step is to fit the differential case with a ring gear and weld the differential case and the ring gear together entirely around a prescribed axis. In the second step, the differential case and the ring gear are welded together using a mark formed on the differential case by the mark formation site in the first step so that an overlap of welding does not occur in a portion of the differential case formed near the gate of the mold.

A vehicle drivetrain assembly, and method for making the assembly, including first and second torque transmitting members, one of which is made of aluminum and the other of which is made of steel, and being joined by an electromagnetic pulse weld progressively applied along a radial direction relative to a central axis of the assembly.

A positive displacement pump for hydraulic limited differential comprises a first external gear and a second external gear juxtaposed inside a casing, wherein one or more outer teeth sections of the external gear are tangential to the casing. The casing is filled with a fluid via an opening and sealed using a plug member on both sides to define a fluid tight sealing configuration and a pair of shafts are configured to couple the first external gear and the second external gear. The clockwise rotation of the first external gear is configured to drive the second external gear in counter clockwise direction in the casing to allow the movement of the fluid inside the casing via one or more countersinks to create a pressure difference for internal circulation of the fluid in the permitted gaps to control the differential slip for increasing the stability of the driving vehicle.

A differential housing includes a body including an outer surface. The body has a first end, a second end, and an intermediate portion extending therebetween. A ring gear support member extends outwardly of the body at the second end. A ring gear support surface forms a first section of the intermediate portion. The ring gear support surface defines a first outer diameter of the intermediate portion. A ring gear is mounted to the outer surface of the body. The ring gear includes an inner annular surface having a first region defining a first inner diameter and a second region defining a second inner diameter. The first region includes a sawtooth profile to establish a desired alignment of the ring gear and the body and the second region facilitating an interference fit with the ring gear support surface.

An axle assembly that includes a housing assembly, an input pinion, a ring gear, a ring gear bearing, and a differential assembly having a differential case. The ring gear bearing supports the ring gear for rotation on the housing assembly as well as handles thrust loads between the ring gear and the housing assembly in opposite axial directions. The ring gear bearing includes an outer bearing race having a first race member, which may be unitarily and integrally formed with the ring gear, and a second race member that is received in a groove formed on the ring gear. The differential case is coupled to the ring gear and secures the second race member to the ring gear.

The present disclosure relates to a drive axle assembly, comprising: a differential assembly including a pinion gear and a crown gear, the pinion gear configured to drive the crown gear and the crown gear rotatable about a rotation axis, and
a lubricant baffle, wherein the lubricant baffle axially overlaps with the pinion gear and faces a toothed front face of the crown gear, and wherein the lubricant baffle has, with respect to the rotation axis of the crown gear, an axial dimension, a radial dimension and a circumferential dimension, the axial dimension being smaller than the radial dimension and the circumferential dimension.
The present disclosure further relates to a set including two drive axle assemblies of the aforementioned type.