A work machine includes an undercarriage assembly. The undercarriage assembly includes a chassis and a ground-engaging mechanism for rotating around the chassis to move the work machine. A pair of rails is coupled to the chassis. A pair of sliders is coupled to a front-assembly. The sliders are aligned with the rails and movable relative to the rails to facilitate movement of the front-end assembly relative to the chassis.

A work machine includes an undercarriage assembly. The undercarriage assembly includes a chassis and a ground-engaging mechanism for rotating around the chassis to move the work machine. A pair of rails is coupled to the chassis. A pair of sliders is coupled to a front-assembly. The sliders are aligned with the rails and movable relative to the rails to facilitate movement of the front-end assembly relative to the chassis.

A ground-engaging track shoe in a track joint assembly includes a shoe plate having bolt holes extending through a middle plate section between a planar link-bolting surface and a ground-contact surface. A weight relief channel is formed in the middle plate section upon a link-bolting side of the track shoe, and extends inwardly from the planar link-bolting surface. The weight relief channel is arranged between a forward bolt hole set of the bolt holes and a back bolt hole set of the bolt holes in a fore-aft direction.

A ground-engaging track shoe in a track joint assembly includes a shoe plate having bolt holes extending through a middle plate section between a planar link-bolting surface and a ground-contact surface. A weight relief channel is formed in the middle plate section upon a link-bolting side of the track shoe, and extends inwardly from the planar link-bolting surface. The weight relief channel is arranged between a forward bolt hole set of the bolt holes and a back bolt hole set of the bolt holes in a fore-aft direction.

A track section (10) adapted to be linked to a plurality of similar track sections to form a track belt for mounting around the outer periphery of vehicle tyres. The track section comprises a crossbar member (11) and two lateral support members (12). A ground engageable support surface is provided on the outer side (14) of the crossbar member and comprises first and second elongated support surface sections (16, 17) extending in parallel with each other in the longitudinal direction of the crossbar member on opposite sides of a longitudinal centre line of the crossbar member. Each one of these elongated support surface sections (16, 17) is undulated, at least over a major part of its longitudinal extension, so as to form undulated support surface areas (18) with wave crests (19)and wave troughs (20) extending in the cross-direction of the crossbar member.

A track section (10) adapted to be linked to a plurality of similar track sections to form a track belt for mounting around the outer periphery of vehicle tyres. The track section comprises a crossbar member (11) and two lateral support members (12). A ground engageable support surface is provided on the outer side (14) of the crossbar member and comprises first and second elongated support surface sections (16, 17) extending in parallel with each other in the longitudinal direction of the crossbar member on opposite sides of a longitudinal centre line of the crossbar member. Each one of these elongated support surface sections (16, 17) is undulated, at least over a major part of its longitudinal extension, so as to form undulated support surface areas (18) with wave crests (19)and wave troughs (20) extending in the cross-direction of the crossbar member.

A technique for steering a tracked vehicle includes controllably deforming at least a portion of a vehicle's track into a curved shape, causing the vehicle to follow a curve-shaped path as it drives. As the vehicle naturally tends to follow a curved path defined by the track's curvature, steering is accomplished with greatly reduced skidding against the ground.

The invention discloses a track element (80) for forming a continuous over tyre track (100), comprising a generally C-shaped rigid member (10) having a base portion (10a) extending transversely to the track (100), a tapered side guide member (10b) on each end of the base portion (10a), and at least one inter-engaging connector member (10c) on each side of the base portion (10a); wherein the rigid member (10) is encased in a coating of elastomeric material (20).

The invention discloses a track element (80) for forming a continuous over tyre track (100), comprising a generally C-shaped rigid member (10) having a base portion (10a) extending transversely to the track (100), a tapered side guide member (10b) on each end of the base portion (10a), and at least one inter-engaging connector member (10c) on each side of the base portion (10a); wherein the rigid member (10) is encased in a coating of elastomeric material (20).

A track chain member includes a shoe member, and a first rail member extending from the shoe member. The first rail member includes a first lug defining a first bore defining a first longitudinal axis and including a first bushing retention shelf disposed in the first bore, as well as a second lug including a second bushing retention shelf disposed in the second bore. A third lug extends in a direction opposite that of the first lug and second lug and is disposed axially between the first lug and the second lug.