When the wear reaches the upper limit, it shall be repaired or replaced in time. 

If the pinion surface is found to be rough, it can be polished manually to reduce the roughness of the gear surface; If the big gear is seriously worn, due to its high cost, it can be repaired or turned over to continue to use, which can not only prolong the service time, but also reduce the investment of the big gear. 

In this regard, SBM will configure corresponding vertical roller mill gears according to the needs and requirements of users, and adopt international well-known brands for supporting manufacturing, which can not only effectively ensure the efficient and stable operation of vertical roller mill, but also greatly reduce various problems of vertical roller mill.