A suspension system includes a swing arm having an end engaging a framework of a vehicle, an end engaging skid rails for a track. A front link has an end engaging the framework and a second end. The first end engages. A middle link has a end joined to the second end and a front portion of the swing arm, and a shock end. A shock has a end joined to the shock end, and a rail end engaging the skid rails. The front link, middle link and shock enable a rising rate system. A rear arm has an end engaging the framework, an end engaging a rear portion of the skid rails, and a length approximately a length of the swing arm. The rear arm is positioned approximately parallel to the swing arm during a travel range of the suspension system for controlling an orientation of the skid rails.

A suspension system includes a swing arm having an end engaging a framework of a vehicle, an end engaging skid rails for a track. A front link has an end engaging the framework and a second end. The first end engages. A middle link has a end joined to the second end and a front portion of the swing arm, and a shock end. A shock has a end joined to the shock end, and a rail end engaging the skid rails. The front link, middle link and shock enable a rising rate system. A rear arm has an end engaging the framework, an end engaging a rear portion of the skid rails, and a length approximately a length of the swing arm. The rear arm is positioned approximately parallel to the swing arm during a travel range of the suspension system for controlling an orientation of the skid rails.

A track assembly for assisting in moving a farm implement along a ground surface in a line of travel is provided. The track assembly includes a tilt arm comprising front and rear ends. The track assembly includes a camber arm coupled to the tilt arm such that the camber arm permits the tilt arm to pivot about a first axis perpendicular to the line of travel and a second axis parallel to the line of travel. The camber arm is located between the front and rear ends of the tilt arm.

A track assembly for assisting in moving a farm implement along a ground surface in a line of travel is provided. The track assembly includes a tilt arm comprising front and rear ends. The track assembly includes a camber arm coupled to the tilt arm such that the camber arm permits the tilt arm to pivot about a first axis perpendicular to the line of travel and a second axis parallel to the line of travel. The camber arm is located between the front and rear ends of the tilt arm.

A track assembly for a farm implement includes a camber arm mounted in a camber arm housing, a first mounting bracket coupled to the upper connection point on the front end and pivotably coupled to the lower pivot point on the front end, and a second mounting bracket coupled to the upper connection point on the back end and pivotably coupled to the lower pivot point on the back end. The track assembly further includes first and second set arms having idler wheel sets mounted on one end and bogie wheel sets mounted on another end. The first set arm is pivotably coupled to the first mounting bracket, and the second set arm is pivotably coupled to the second mounting bracket, such that the idler wheel sets and bogie wheel sets are movable in opposing vertical directions.

A rotary shock absorber for a vehicle and a pneumatic spring, in particular for a rotary shock absorber, are disclosed. The rotary shock absorber for a vehicle comprises a first component and a second component, wherein the second component is rotatably arranged relative to the first component. The rotary shock absorber comprises a pneumatic spring that is adapted to provide an elastic force F against rotation of the second component relative to the first component. The second component forms a pneumatic cavity of the pneumatic spring. The second component forms a hydraulic cavity of the pneumatic spring. The hydraulic cavity comprises a toroidal section.

A crawler drive for an agricultural work machine, comprising front and rear main wheels, front and rear main frames associated with each respective main wheel, two support wheels, a running belt surrounding the two main wheels, and an articulation point through which the crawler drive is pivotably connected to a body of the agricultural work machine. The two main frames are coupled to one another to pivot about a common pivot axle, the support wheels are arranged on a common support frame, and the support frame is pivotably connected to the front main frame via a support wheel swing arm. The crawler drive further comprises a damping device with at least one piston-cylinder unit and hydraulically acting pressure device. The piston-cylinder unit is coupled at a swing arm end to the support wheel swing arm and at a frame end to the rear main frame.

A crawler drive for an agricultural work machine, comprising front and rear main wheels, front and rear main frames associated with each respective main wheel, two support wheels, a running belt surrounding the two main wheels, and an articulation point through which the crawler drive is pivotably connected to a body of the agricultural work machine. The two main frames are coupled to one another to pivot about a common pivot axle, the support wheels are arranged on a common support frame, and the support frame is pivotably connected to the front main frame via a support wheel swing arm. The crawler drive further comprises a damping device with at least one piston-cylinder unit and hydraulically acting pressure device. The piston-cylinder unit is coupled at a swing arm end to the support wheel swing arm and at a frame end to the rear main frame.

A tracked ATV includes a frame, a track coupled to the frame, and a power source supported by the frame and drivingly coupled to the track. The tracked ATV further includes a steering and drive assembly, which has a first hydraulic pump coupled to the tracks for large radius turns. The steering and drive assembly also has a second hydraulic pump coupled to the tracks for small radius turns.

A tracked ATV includes a frame, a track coupled to the frame, and a power source supported by the frame and drivingly coupled to the track. The tracked ATV further includes a steering and drive assembly, which has a first hydraulic pump coupled to the tracks for large radius turns. The steering and drive assembly also has a second hydraulic pump coupled to the tracks for small radius turns.