A drive shaft is configured by joining solid stub shafts formed of a medium carbon steel to both ends of a hollow tubular body formed of a medium carbon steel. When expressed as grain size number, the grain size of the hollow tubular body at joint parts where the hollow tubular body and the solid stub shafts are joined together ranges from #5 to #9, and the grain size of the solid stub shafts at the joint parts ranges from #10 to #12.

A drive shaft is configured by joining solid stub shafts formed of a medium carbon steel to both ends of a hollow tubular body formed of a medium carbon steel. When expressed as grain size number, the grain size of the hollow tubular body at joint parts where the hollow tubular body and the solid stub shafts are joined together ranges from #5 to #9, and the grain size of the solid stub shafts at the joint parts ranges from #10 to #12.

An axle final drive assembly for a work vehicle is provided. The axle final drive assembly includes a final drive housing; an output shaft extending from the final drive housing; a planetary gear set contained in the final drive housing and having an element fixed to the output shaft; and an input member contained in the final drive housing providing rotational input to the planetary gear set for driving the output shaft. The planetary gear set, at least in part, is pivotally coupled to the input member.

An electric drive axle for a motor vehicle including an axle housing, an electric motor having an output shaft directly driven by a bevel pinion gear coupled thereto, a fixed ratio planetary gear arrangement, a differential unit including a differential gear arrangement housed within a differential case and a first clutch selectively operable to connect a portion of the planetary gear set to a stationary member of the drive axle so that the drive axle operates in a first gear ratio.

Provided is a turning function-equipped having a reduced size and having improved strength to an external shock force and improved reliability. The turning function-equipped hub unit includes: a hub unit main body; a unit support member; and a turning actuator. The unit support member is provided to a chassis frame component. The unit support member includes an abutment part with which a part of the hub unit main body is brought into abutment in a vertical direction during non-normal time, the abutment part being separated from the hub unit main body in the vertical direction during normal time, and the non-normal time in which the abutment is caused, is a time when an impact load equal to or greater than a predetermined value acts on the hub unit main body in the vertical direction due to an external force from the wheel.

A gear assembly includes gears, housing components joined to one another about the gears, and a gasket. Each housing component includes an axial end wall and a sidewall projecting axially from the axial end wall. The sidewall of each housing component has an axial end surface that faces the axial end surface of the other housing component. One of the housing components includes a rib that projects axially from the axial end wall thereof and is spaced inward from the sidewall thereof. The gasket includes a seal portion and a baffle portion. The seal portion is disposed between the axial end surfaces of the housing components to create a seal therebetween. The baffle portion extends inward from the seal portion and cooperates with the rib, the sidewall, and the axial end wall to form a channel configured guide drainage of lubricant thrown from at least one of the gears.

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.

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.

A housing unit for use in an axle end assembly including first and second housing parts, wherein one of the first and the second housing parts are disposed to be mutually rotatable and define a housing interior space, wherein the first housing part for establishing on a hub has a flange, wherein the second housing part for safeguarding against rotation in relation to a stator of a wheel suspension has an engagement portion, wherein a gear wheel assembly is disposed in the housing interior space to transmit a torque of a driveshaft to the first housing part, wherein one of the first and the second housing parts, when dismantling the housing unit from the wheel suspension, are mutually established that the housing interior space remains closed such that at least 70% of the outwardly protruding faces of the housing unit are closed in a fluid-tight manner.

A modular chassis is provided for an off-road vehicle to improve assembly, servicing, and repairing of a drivetrain of the off-road vehicle. The modular chassis includes a chassis to support components of the off-road vehicle. A front frame module couples with a front of the chassis, and a rear frame module couples with a rear of the chassis. The front frame module supports lower suspension arms of the off-road vehicle by way of inboard bushing joints. The front frame module supports at least a steering gear and a front differential of the off-road vehicle. The rear frame module is a tube-frame structure that supports components of the off-road vehicle. A lower portion of the rear frame module extends rearward and acutely upward to a top frame member that couples with upper side portions of the chassis. Several cross-members impart structural integrity to the rear frame module.