There is described a wheel axle for an agricultural vehicle such as a combine harvester. The wheel axle has at least one wheel suspension (32a) arranged to maintain a wheel axle parallel to the supporting surface, through use of a linkage arrangement (36, 38, 40) which is pivotally coupled to the axle frame (30). The configuration of the wheel suspension allows for the wheel axis to passively follow the surface profile, as any loads transmitted through the wheel carrier act to level out the wheel suspension to align with the underlying surface. As the wheel axle is adjusted to lie parallel with the underlying surface, accordingly the ground-contacting surface area of the associated wheels is maximised.

There is described a wheel axle for an agricultural vehicle such as a combine harvester. The wheel axle has at least one wheel suspension (32a) arranged to maintain a wheel axle parallel to the supporting surface, through use of a linkage arrangement (36, 38, 40) which is pivotally coupled to the axle frame (30). The configuration of the wheel suspension allows for the wheel axis to passively follow the surface profile, as any loads transmitted through the wheel carrier act to level out the wheel suspension to align with the underlying surface. As the wheel axle is adjusted to lie parallel with the underlying surface, accordingly the ground-contacting surface area of the associated wheels is maximised.

The pivot joint assembly includes a housing with an opening which extends along an axis. A bearing is received in the opening and which has a cylindrical outer surface that is in slidable contact with another surface so that the bearing can slide in an axial direction relative to the housing. The bearing has a curved inner bearing surface. The pivot joint assembly also includes an inner ring with a curved outer surface that is in slidable contact with the curved inner bearing surface of the bearing so that the inner ring can rotate and articulate relative to the housing.

A machine includes a frame, a suspension system mounted to the frame and including a plurality of struts, and a payload distribution monitoring system supported by the frame. The payload distribution monitoring system includes pressure sensors respectively arranged with the struts, a computer-readable medium bearing a payload distribution monitoring program, a controller, and an interface device. The controller is in operable communication with the pressure sensors to receive their signals and configured to execute the payload distribution monitoring program. The interface device is in operable communication with the controller and configured to display the payload distribution monitoring program's graphical user interface. The payload distribution monitoring program is configured to monitor the strut pressure signals for an unbalanced loading condition that occurs when a relative strut pressure differential, which is computed using the strut pressure signals from the pressure sensors, exceeds a differential limit.

A wheel suspension system for a vehicle having a chassis, comprising an opposing pair of wheel uprights having a plurality of pickup points located thereon, an opposing pair of main axis arms, an opposing pair of integrated axis arms, an internal cambering system comprising opposing pairs of camber links and radius rods, and an internal springing system comprising a single spring shock and an opposing pair of spring levers having tension links attached thereon. An internal roll-controlling weight transfer system comprising an opposing pair of weight transfer links having attached springing shocks may also be included.

A wheel suspension system for a vehicle having a chassis, comprising an opposing pair of wheel uprights having a plurality of pickup points located thereon, an opposing pair of main axis arms, an opposing pair of integrated axis arms, an internal cambering system comprising opposing pairs of camber links and radius rods, and an internal springing system comprising a single spring shock and an opposing pair of spring levers having tension links attached thereon. An internal roll-controlling weight transfer system comprising an opposing pair of weight transfer links having attached springing shocks may also be included.

The suspension beam or beams of a truck having a shortened bed are modified by bending a distal end of the suspension beam to decrease the distance between a frame mount point and a wheel mount (ball joint) point. The reduction in distance increases the structural support of the suspension sufficiently to eliminate non-uniform tire wear in shortened wheelbase vehicles.

The suspension beam or beams of a truck having a shortened bed are modified by bending a distal end of the suspension beam to decrease the distance between a frame mount point and a wheel mount (ball joint) point. The reduction in distance increases the structural support of the suspension sufficiently to eliminate non-uniform tire wear in shortened wheelbase vehicles.

A system for wheel alignment provides an indexable pair of washers in conjunction with a sleeve having non-concentric inner and outer surfaces that allow for adjustments to camber, toe, and thrust. The system can be retrofitted to existing axle systems using a sleeve that fits over the spindle of the axle. Rotation of the sleeve relative to the spindle provides for adjustment to wheel alignment. The indexable washers can be used to determine the precise amount of adjustment and fix the position of the sleeve once adjusted. The system can be implemented regardless of the circumferential position (i.e. azimuthal orientation) of a keyway or groove on the axle spindle that is typically used to lock the position of the axle nut.

A suspension module having a knuckle, a pedestal, an upper control arm, and first and second air springs. The pedestal may be disposed on the knuckle and may support the first and second air springs. The upper control arm may be pivotally mounted to the pedestal between the first and second air springs.