The radial clearance of the bearing is too small, and the radial clearance of the ultrafine mill bearing is too small, which will cause the bearing to over-grind and heat up, mainly because the bearing has a large bearing capacity, a high frequency, and the load keeps changing.

Solution: It is recommended that the bearing adopts a large clearance. If it is a bearing with ordinary clearance, the outer ring of the bearing can be ground to form a large clearance.

There needs to be a certain gap between the gland of the ultrafine mill and the outer ring of the bearing, so as to ensure the normal heat dissipation of the bearing and a certain axial movement.

Solution: If the top of the bearing gland is too tight, it can be adjusted by the gasket between the end cover and the bearing seat, and the gap can be adjusted to a suitable gap.