An axle assembly having a drive pinion that may be rotatably supported by first and second sets of roller bearing elements. A preload element may exert a preload force on at least one of the first and second sets of roller bearing elements. The preload element may be disposed on the drive pinion in an inboard direction from the yoke.

A driven wheel assembly includes a fixed axle spindle, a rotating drive shaft extending inside the axle spindle, a bearing, a hub, a brake disc, and a wheel rim. An inner ring of the bearing is mounted on the spindle. The hub is mounted on an outer ring of the bearing. The drive shaft, the brake disc and the wheel rim are coupled in rotation with the hub. The brake disc includes a radial friction part and a tubular portion which is fastened to the hub. The brake disc is fastened to the hub by a radial fastener extending along radial directions with respect to a rotation axis of the assembly and mounted through the tubular portion of the brake disc.

A wheel hub transmission unit for a drive wheel of a vehicle is provided. The wheel hub transmission unit includes a wheel axle, a pinion hub carrier concentrically arranged with respect to the wheel axle, a pinion mounted in a torsionally rigid manner onto said pinion hub carrier and configured to drive the drive wheel, and a torque transmission device having a transmission sleeve. The transmission sleeve is made from a magnetically coded material and includes a measuring area that is utilized to measure a torque by utilizing magnetic properties of the magnetically coded material of the transmission sleeve. An annular space is radially provided between the transmission sleeve and the wheel axle in the measuring area with a sensor coil being accommodated therein, the annular space being axially accessible from outside the transmission sleeve.

An axle assembly having an axle shaft subassembly. The axle shaft subassembly may include an axle shaft and an adapter ring. The adapter ring may receive the axle shaft and may be fixedly positioned with respect to the axle shaft. A hub may receive the adapter ring and may be fixedly positioned with respect to the adapter ring.

Axle shaft assemblies for use with a vehicle include a shaft formed from a first material having a first modulus of elasticity for providing the shaft with a flexibility adapted to withstand side impacts and resist deformation. A first end member can be engaged with a first end of the shaft, and a second end member can be engaged with the second end of the shaft. The end members can be formed from a second material having a second modulus of elasticity greater than the first, such that the end members are adapted to withstand a rotational force. The end members can include splined connectors, hub flanges, and other similar components. The resulting axle shaft assembly can thereby include modular combinations of materials having low and high moduli of elasticity.

Axle shaft assemblies for use with a vehicle include a shaft formed from a first material having a first modulus of elasticity for providing the shaft with a flexibility adapted to withstand side impacts and resist deformation. A first end member can be engaged with a first end of the shaft, and a second end member can be engaged with the second end of the shaft. The end members can be formed from a second material having a second modulus of elasticity greater than the first, such that the end members are adapted to withstand a rotational force. The end members can include splined connectors, hub flanges, and other similar components. The resulting axle shaft assembly can thereby include modular combinations of materials having low and high moduli of elasticity.

An outdoor power machine includes a chassis including first and second main frame rails; two or more drive wheel assemblies physically mounted to the chassis, each drive wheel assembly coupled to an electric motor; an electrical power pack configured to supply electric energy to the electric motors; at least one steer wheel pivotally mounted to the chassis; a mowing deck assembly; and a deck lift connecting the mowing deck assembly to the chassis, the deck lift including: a first lift assembly connected to the first main frame rail of the chassis at a first rotation point; a second lift assembly connected to the second main frame rail of the chassis at a second rotation point; wherein the first and second lift assemblies are separated at the first and second rotation points and the first and second rotation points are not interconnected.

An axle assembly that includes a spindle and an axle shaft. The spindle comprises a spindle hole that extends along an axis and a spindle journal that protrudes toward the axis. The axle shaft is disposed in the spindle hole and is rotatable about the axis. The spindle journal cooperates with an axle shaft journal or a seal to restrict lubricant from flowing between the axle shaft and the spindle.

Axle shaft assemblies for use with a vehicle include a shaft formed from a first material having a first modulus of elasticity for providing the shaft with a flexibility adapted to withstand side impacts and resist deformation. A first end member can be engaged with a first end of the shaft, and a second end member can be engaged with the second end of the shaft. The end members can be formed from a second material having a second modulus of elasticity greater than the first, such that the end members are adapted to withstand a rotational force. The end members can include splined connectors, hub flanges, and other similar components. The resulting axle shaft assembly can thereby include modular combinations of materials having low and high moduli of elasticity.

A straight axle for a vehicle drive assembly including an elongated shaft having a first free end with a plurality of splines formed thereon and a second free end with an externally threaded section that defines the second free end and a plurality of splines that are formed on the elongated shaft behind the externally threaded section. The plurality of splines at the first free end of the elongated shaft and the plurality of splines at second free end of the elongated shaft are configured to engage with complementary splines on associated drive components, and the externally threaded section is configured to receive a fastener that retains one of the associated drive components on the elongated shaft.