The roller body material is 40Mn or 50Mn,KTS factory professional produce high quality excavator parts for many years,our products are according to the standard of OEM to manufacture. Carrier roller is composed of roller shell,shaft,seal,collar,o-ring,block slice,bushing bronze.it is applicable to special model of crawler type excavators and bulldozers from 0.8T to 100T.it is widely applied in bulldozers and excavators of Komatsu,Hitachi,Caterpillar,Kobelco,Sumitomo,Kubota,Yanmar,and Hyundai etc,the function of top rollers is to carry the track link upwards,make certain things are linked tightly,and enable the machine to work faster and more steadily,our products use special steel and produced by new process,every procedure goes through strict inspection and the property of compressive resistance and tension resistance can be ensured.
