A wheel steering system includes: a rear suspension mechanism inclusive of a knuckle member for rotatably holding a right rear wheel; a first cam and a second cam that are rotatably supported; a first cam follower 18 that follows the first cam; a second cam follower 20 that follows the second cam 16; cam grooves 48 respectively provided in the first and second cams; a first engaging pin and a second engaging pin that engage with the respective cam grooves; and a rotational driving force transmitter that transmits a rotational driving force of an electric motor to the first and second cams, wherein the first cam and the first cam follower are arranged on a front side in the vehicle front-rear direction of an axle, and the second cam and the second cam follower are arranged on a rear side in the vehicle front-rear direction of the axle.

A machine includes a frame, a first steering arm, a second steering arm, a first hydraulic actuator coupled to the frame and the first steering arm, and a second hydraulic actuator coupled to the frame and the second steering arm. A first angle sensor measures a rotational displacement of the first hydraulic actuator relative to the first steering arm. A first link couples the first hydraulic actuator and the first sensor, and isolates movements other than the first rotational displacement. A second angle sensor measures a second rotational displacement of the second hydraulic actuator relative to the second steering arm. A second link couples the second hydraulic actuator and the second sensor, and isolates movements other than the second rotational displacement.

A wheel end assembly having upper and lower arms and a tie rod coupled to a wheel carrier at an outer tie rod joint. A pin member is disposed between upper and lower mounting extensions of the wheel carrier or extends from a single mounting extension. The pin member includes a first end, a second end and an expanded ball portion between the first and second end. The expanded ball portion is offset toward one of the first and second ends. The tie rod joint is defined by a pivotal coupling of the tie rod end to the pin member. An adjustable height pin for the tie rod allows adjust of height on the tie rod.

A wheel end assembly having upper and lower arms and a tie rod coupled to a wheel carrier at an outer tie rod joint. A pin member is disposed between upper and lower mounting extensions of the wheel carrier or extends from a single mounting extension. The pin member includes a first end, a second end and an expanded ball portion between the first and second end. The expanded ball portion is offset toward one of the first and second ends. The tie rod joint is defined by a pivotal coupling of the tie rod end to the pin member. An adjustable height pin for the tie rod allows adjust of height on the tie rod.

The disclosure relates to a steering system useful for providing stable control during rear axle steering of harvesters, such as self-propelled windrowers. The steering system utilizes a single steering cylinder and retracted caster cylinders to regulate rotation of the casters during rear axle road operation mode. The steering system locks the steering cylinder and uses the caster cylinders for damping during in-field operation mode.

Self-steering axle assembly has an axle with central tube having a longitudinal central axis. A king pin is connected with an end portion of the axle. A knuckle is connected with the king pin. The knuckle includes a torque plate section. A first arm of the knuckle extends from a side of the torque plate section and receives a first end portion of the king pin. A second arm extends from the torque plate section in the same direction as the first arm. The second arm receives a second end portion of the king pin. A spindle is friction welded to the torque plate section and has a longitudinal central axis. The torque plate section has at least one surface on the torque plate section extending substantially perpendicular to the longitudinal central axis of the spindle. A tool engages the surface during friction welding of the spindle to the torque plate section. The relative locations of the axle, spindle and king pin enable an air disc brake actuator to avoid contact with components of the heavy-duty vehicle during steering and with the ground and debris.

A low suspension arm strut coupling is provided for a suspension of an off-road vehicle. The suspension comprises a lower suspension arm that is hingedly coupled between a chassis of the off-road vehicle and a spindle assembly that is coupled with a front wheel. An upper suspension arm is hingedly coupled between the chassis and the spindle assembly. A strut is coupled between the lower suspension arm and the chassis. A lower pivot couples the strut to the lower suspension, and an upper pivot couples the strut to the chassis. The upper and lower pivots provide a lower center of gravity of the off-road vehicle and a relatively smaller shock angle. The lower suspension arm is reinforced to withstand forces due to movement of the front wheel and operation of the strut in response to travel over terrain.

An adapter for a ball stud separator tool may include a cylindrical body. The cylindrical body may include a threaded end and a mating end oppositely facing the threaded end. A plurality of adapter threads may be recessed into the cylindrical body proximate the threaded end and may be configured to threadably receive a plurality of ball stud threads of a ball stud. A flared cylindrical wall may be recessed into the cylindrical body proximate the mating end. The flared cylindrical wall may terminate at a curved seat disposed in the cylindrical body.

A universal axle-hub assembly is provided for an off-road vehicle. The universal axle-hub assembly comprises a wheel hub that receives a constant velocity (CV) axle snout into an opening extending through an axle support of the wheel hub. An outboard-most portion of the opening is a splined portion that engages with similar splines disposed on an outboard-most portion of the CV axle snout. An inboard-most portion of the opening is a smooth portion that receives a smooth portion of the CV axle snout. The axle support extends through an entirety of the width of a bearing that supports the wheel hub, such that the bearing supports the smooth portion of the CV axle snout and substantially eliminates shear forces acting on the splined portion of the CV axle snout. A bearing carrier supports the bearing and may be fastened onto a trailing arm or a spindle of the off-road vehicle.

A leading-edge steering system is provided for a front suspension of an off-road vehicle. The leading-edge steering system is comprised of a spindle assembly that supports a drive axle assembly to conduct torque from a transaxle to a front wheel. A first rod-end joint pivotally couples an upper suspension arm and the spindle assembly, and a second rod-end joint pivotally couples a lower suspension arm and the spindle assembly. A steering rod-end joint pivotally couples a first end of a steering rod with a leading-edge portion of the spindle assembly. A steering gear is coupled with a second end of the steering rod and configured to move the steering rod, such that the spindle assembly rotates with respect to the upper and lower suspension arms. The leading-edge portion is configured to exert primarily tensile forces on the steering rod during travel over rough terrain.