An undercarriage includes a plurality of bottom support rollers defining a bottom support roller platform distance and front and rear wheels defining a wheel pitch distance, and a track chain defining a link pitch distance and a ratio of the bottom support roller platform distance to the wheel pitch distance ranges from 0.70 to 0.95 and a ratio of the roller spacing distance to the link pitch distance ranges from 0.75 link pitch distance to 1.50 link pitch distances.

A track assembly is formed from an endless track, an elongate guide member, a drive sprocket, and a plurality of track engaging rollers. The endless track has an inner surface having a plurality of parallel circumferential ridges. Formed between the circumferential ridges is a circumferential channel. The guide member is at least partially positioned and closely received within the circumferential channel. The track engaging rollers are arranged in a pair of parallel rows near an outer side of each circumferential ridge. During track rotation, the guide member remains closely received within the channel, and the rollers contact the outer side of the ridges to resist lateral movement of the track. Positioning of the guide member in the circumferential channel, with the rollers outside the ridges, laterally stabilizes the track thereby reducing the risk of the track slipping off the track assembly.

A track assembly is formed from an endless track, an elongate guide member, a drive sprocket, and a plurality of track engaging rollers. The endless track has an inner surface having a plurality of parallel circumferential ridges. Formed between the circumferential ridges is a circumferential channel. The guide member is at least partially positioned and closely received within the circumferential channel. The track engaging rollers are arranged in a pair of parallel rows near an outer side of each circumferential ridge. During track rotation, the guide member remains closely received within the channel, and the rollers contact the outer side of the ridges to resist lateral movement of the track. Positioning of the guide member in the circumferential channel, with the rollers outside the ridges, laterally stabilizes the track thereby reducing the risk of the track slipping off the track assembly.

A track shoe for a track of a large hydraulic excavator comprises a plate-shaped base having a substantially rectangular base surface and being defined in a circumferential direction by a left side surface, a right side surface, a front surface and a rear surface. The front surface and the rear surface include a front stopper and a rear stopper, respectively. The front stopper and the rear stopper limit a negative rotation of adjacent track shoes in the track to a predetermined angle.

The invention relates to an anti-skid chain for tires, in particular for bogie axles, wherein the anti-skid chain has two laterally stable guide chains which, when installed, are arranged to the side of the treads of the tires, wherein the anti-skid chain has a flexible chain mesh which extends between the two guide chains, and wherein at least one guide chain has chain links which are interconnected in an articulated manner by means of joint pins in the circumferential direction, and at least one rotation-blocking element by means of which a maximum joint angle between two interconnected chain links is defined. In order to prevent lateral pulling of the anti-skid chain and, at the same time, to provide an anti-skid chain that is easy to produce, according to the invention, a part of the rotation-blocking element is located on at least one of the joint pins