The excavator and bulldozer track chain assy with track shoe assy consists of the following parts: track link, track pin and bushing,seal, bolt and nut, track plate.
The track chain usually has an unusual shape, and the most important area is the area that will be in contact with the ground, the rolling surface, as it is required to have properties that prevent very rapid wear.
In order to extend the service life, the track chain is made of a material with high strength in the rolling surface area, which can meet the most critical requirements. The connecting rod assembly, bushings and pins are inserted into opposite sides and ends respectively to ensure that the pins and bushings do not slip out of the connecting rod, so a press fit is used. The link has a larger contact area with the ground because it is under pressure, thus achieving a closer fit. Surfaces subjected to greater stress to improve their hardness properties are heat-quenched to ensure that the wear that occurs is less uneven.
