A dumping vehicle includes a vehicle elevation system for elevating a body of a vehicle. The system can use one or more components of a vehicle as a main support against which a vehicle body is elevated. In certain examples, a suspension device of the vehicle can be used as the main support. The system further includes an elevation device arranged between the suspension device and a vehicle frame and configured to elevate the vehicle body by lifting the vehicle frame against the suspension device.

A vehicle suspension having a frame attachment portion attached to a saddle, first and second bolster springs mounted to spring mounts on an outboard side of the saddle and mounted on walls of a spring mount on an outboard side of an equalizing beam, and third and fourth bolster springs mounted to walls of a spring mount on an inboard side of the saddle and mounted to spring mounts on an inboard side of the equalizing beam, wherein upwardly extending flanges on the bottom of the first and second bolster springs are mounted to each other using a common fastener, and wherein upwardly extending flanges on the bottom of the third and fourth bolster springs are mounted to each other with a common fastener.

A walking beam assembly mounts onto the main frame of an agricultural trailer in place of a single axle assembly. The walking beam assembly has a main axle beam serving as the only connection to the main frame. Two walking beams, with a pair of wheels on each, are supported at opposing ends of the main axle beam. Two hubs are pivotally supported on the main axle beam at respective hub locations spaced inward axially of the main axle beam relative to the ends of the main axle beam. A pair of brace members are coupled between each hub and the respective walking beam at diametrically opposing sides of the walking beam pivot. The hubs and the brace members are pivotal relative to the main axle beam about the same walking beam axis as the walking beams.

A vehicle suspension having a frame attachment portion attached to a saddle, first and second bolster springs mounted to spring mounts on an outboard side of the saddle and mounted on walls of a spring mount on an outboard side of an equalizing beam, and third and fourth bolster springs mounted to walls of a spring mount on an inboard side of the saddle and mounted to spring mounts on an inboard side of the equalizing beam, wherein upwardly extending flanges on the bottom of the first and second bolster sprints are mounted to each other using a common fastener, and wherein upwardly extending flanges on the bottom of the third and fourth bolster springs are mounted to each other with a common fastener.

A bogie axle system having a slew bearing assembly that pivotally couples a chain housing to an axle housing. The slew bearing assembly includes a plurality of bearing elements that are received in a bearing groove of a spindle and that are disposed between the spindle and an outer race.

A walking beam assembly includes a support beam and a mount member configured to mount the support beam on a vehicle chassis. Furthermore, the assembly includes a gear assembly that is supported proximate an end of the support beam. The gear assembly includes a gear train and a gear housing. The gear train is operably coupled to a wheel hub. The gear housing substantially encloses the gear train. Moreover, the walking beam assembly includes an input drive assembly with at least one movable part configured to deliver an input torque from the vehicle engine to the gear train. The input drive assembly includes an input drive housing that substantially encloses the at least one movable part. The input drive housing is attached to the gear housing such that an interior of the input drive housing is in fluid communication an interior of the gear housing.

A walking beam assembly includes a support beam and a mount member configured to mount the support beam on a vehicle chassis. Furthermore, the assembly includes a gear assembly that is supported proximate an end of the support beam. The gear assembly includes a gear train and a gear housing. The gear train is operably coupled to a wheel hub. The gear housing substantially encloses the gear train. Moreover, the walking beam assembly includes an input drive assembly with at least one movable part configured to deliver an input torque from the vehicle engine to the gear train. The input drive assembly includes an input drive housing that substantially encloses the at least one movable part. The input drive housing is attached to the gear housing such that an interior of the input drive housing is in fluid communication an interior of the gear housing.

A vehicle walking beam assembly includes a support beam and a mount member configured to rotatably mount the support beam on the chassis. A gear assembly with a gear train and a gear housing is supported by the support beam. The gear train includes a gear with a first journal surface, and the housing includes a second journal surface. The walking beam assembly additionally includes an input drive assembly that delivers input torque from the engine to the gear train. Moreover, the walking beam assembly includes a reaction member connected to one of the gear housing and the gear of the gear train. The reaction member is configured to transfer a reaction force between the chassis and the one of the gear housing and the gear of the gear train as the first journal surface journals on the second journal surface.

A bolster spring for a vehicle suspension including a base plate, a top plate, elastomeric material positioned between the base plate and the top plate, a first flange comprising a pair of ears having a bottom mounting surface upwardly extending from a first end of the base plate at an angle , and one or more mounting holes positioned in the pair of ears in the first flange adapted for attachment to a pair of ears on an upwardly extending flange on a second bolster spring.