An improved suspension system for a track-driven work vehicle includes a main undercarriage support beam and a rear suspension assembly provided in operative association with the main undercarriage support beam. In one embodiment, the rear suspension assembly includes a rear rocker arm that pivotably couples both a rear idler wheel and a separate rear roller wheel of the system to the main undercarriage support beam.

An improved suspension system for a track-driven work vehicle includes a roller beam and at least one roller wheel assembly coupled to the roller beam. The roller wheel assembly includes an inboard roller shaft, an inboard roller wheel coupled to the inboard roller shaft, an outboard roller shaft, and an outboard roller wheel coupled to the outboard roller shaft. Additionally, the roller wheel assembly includes a pivot mechanism coupling the inboard roller shaft to the outboard roller shaft.

A track wheel suspension for a construction machine is provided including a track wheel engageable to a track, a swing device, a swing bar and a restraining mechanism for at least restraining a movement of the swing device about a swing axis in at least a first direction.

A track assembly includes an elongated main frame supported for pivotal movement on a transverse axis and having opposite end portions supporting a set of end wheels. An endless flexible belt extends around the end wheels and has an upper run and a lower run for engaging the ground. A plurality of longitudinally spaced bogie wheels are positioned below the main frame and engage the lower run of the belt. The bogie wheels are carried by bogie frames supported for vertical movement and also for tilting movement relative to a plane defined by the axes of the end wheels. The bogie frames are urged or biased downwardly against the lower run of the belt by compression members extending from the main frame and preferably in the form of annular rubber spring members.

A track wheel suspension for a construction machine is introduced. The track wheel suspension includes a track wheel engageable to a track and a swing device including a first coupling portion. The first coupling portion is arranged for rotatably supporting the track wheel. Furthermore, the track 5 wheel suspension including a swing bar with a first bar end which is arranged for being mounted to a second coupling portion of the swing device. The swing bar provides a swing axis which is offset from a rotation axis of the track wheel such that a swing movement of the swing device enables a movement of the track wheel in a direction which is substantially perpendicular to the rotation axis.

A track system for traction of a vehicle (e.g., a construction vehicle such as a compact track loader). The track system comprises a track comprising a ground-engaging outer side for engaging the ground and an inner side opposite to the ground-engaging outer side. The track system comprises a track-engaging arrangement for driving and guiding the track around the track-engaging arrangement. The track-engaging arrangement comprises a drive wheel for driving the track and a plurality of roller wheels for rolling on the inner side of the track along a bottom run of the track. The track system comprises a frame for supporting components of the track system, including the roller wheels. The frame may be configured to avoid constraining the roller wheels, which may allow the roller wheels to be wider and better distributed loading onto the track. A rolling contact interface between a roller wheel and the inner side of the track may be nonparallel to a widthwise direction of the track.

A track assembly includes an elongated main frame supported for pivotal movement on a transverse axis and having opposite end portions supporting a set of end wheels. An endless flexible belt extends around the end wheels and has an upper run and a lower run for engaging the ground. A plurality of longitudinally spaced bogie wheels are positioned below the main frame and engage the lower run of the belt. The bogie wheels are carried by bogie frames supported for vertical movement and also for tilting movement relative to a plane defined by the axes of the end wheels. The bogie frames are urged or biased downwardly against the lower run of the belt by compression members extending from the main frame and preferably in the form of annular rubber spring members.

A roller suspension system for a track-driven work vehicle may generally include a support beam and a resilient bushing configured to be coupled to the support beam. The resilient bushing may define a shaft opening. In addition, the system may include a roller wheel assembly having a roller wheel and a roller shaft. The roller wheel may be rotatable relative to the roller shaft. In addition, the roller shaft may be received within the shaft opening of the resilient bushing such that the roller shaft is coupled to the support beam via the resilient bushing.

A pivot assembly for connecting a ground-contacting wheel assembly to a frame member of a track system assembly has a base defining a first interlocking member, a resilient body structured for being received at least partially within the base and having a second interlocking member connectable to the first interlocking member, and an axle assembly configured for rotatably connecting the ground-contacting wheel assembly to the frame member, the axle assembly including a third interlocking member connectable to the second interlocking member. The resilient body is at least partially wrappable around the peripheral surface of the axle assembly. Upon deformation of the resilient body, the axle assembly is pivotally movable relative to the frame member of the track system assembly about at least one of a longitudinal axis and a vertical axis.

A track assembly for providing traction to an off-road vehicle, such as an agricultural vehicle, a construction vehicle, or another work vehicle, in which the track assembly may comprise a suspension between a frame of the track assembly and a bogie carrying roller wheels of the track assembly.