The size of each group of bearing clearance is not only related to the bearing inner diameter, but also related to the type of bearing. The clearance values of groups 0 and 4 of various common types of 320mm bearing with inner diameter are as follows:

1, deep groove ball bearings, 0 groups of 45~125μm, 4 groups of 195~300μm

2, cylindrical roller bearings, 0 groups of 145~225μm, 4 groups of 305~385μm

3, cylindrical hole aligning roller bearings, 0 groups of 200~310μm, 4 groups of 410~550μm

4, tapered hole allocing roller bearings, 0 groups of 270~360μm, 4 groups of 470~590μm

The calculation of the reduction of radial clearance of the bearing after installation can be calculated not only by knowing the temperature, but also by knowing the match between the bearing and the shaft and the hole, the temperature difference between the inner and outer rings, and the diameter of the raceway and the diameter of the rolling body of the ring.