komatsu excavator undercarriage parts

What are the differences between the friction-welded mini excavator track rollers and the traditional type of track roller? 1.Friction-welding mini excavator track rollers is better in the wear-resistance and has longer working lifetime. 2.Consumption of material For traditional track roller, the roller bodies are connected by the welding rod. For friction-welding mini excavator track rollers, the roller bodies are connected by the friction between roller bodies.Friction part of roller will be added more material to make sure roller is conformed to the standard size after friction-welding. 3.Interior parts For traditional track roller, the welding is done after two processes of fine machining, therefore the requirement to the size of interior parts is not that severe. For friction-welding track roller, after the welding, there is one more fine ma-chinning with concentric locating to make sure the conformity of inner sizes.And for which, the requirement to the size of interior parts is severe.Interior parts for friction-welding track roller are with higher standard. 4.Differences on the manufacturing processes

The track rollers of mini undercarriage parts is to distribute the energy and load of the excavator during work, and to prevent the track and the fuselage from derailing when the excavator is walking. Since most of the track rollers work in sand or harsh working environments, and bear a greater impact force than other components, they are prone to wear, breakage, oil leakage, etc. after a period of work. Therefore, the track rollers must have a very high bearing capacity, wear resistance and sealing. Kyushan load-bearing wheel adopts high-performance oil seal to ensure that the machine runs smoothly and has a stronger seal. With Kyushan's advanced welding and processing technology, the track rollers has a stronger bearing capacity and is more wear-resistant.

The track adjuster assembly is applied to excavator and bulldozer idler. Track adjuster assembly is made of track adjuster/ track cylinder, idler yoke, tension spring/recoil spring, seals, etc. It is made by forging, heat treatment.