Generally, if the vertical roller mill operation has fatigue peeling, oxidation corrosion, worn pits, cracks or excessive noise, it will cause bearing heating and abnormal sound.

In addition, vibration caused by improper bearing disassembly and loose equipment anchor bolts will also lead to indentation of bearing raceway and rolling element, cracking of inner and outer race of bearing, resulting in heating of vertical roller mill operation.

Solution: replace the bearing in time; During the operation of vertical roller mill operation, periodic inspection, maintenance and other operations shall be carried out according to the regulations.