Causes of heating of rolling bearing and its elimination method
Bearing precision is low: select bearing with specified precision grade.
Spindle bending or box hole with different center: repair main shaft or box body.
Poor lubrication: select the specified brand of lubrication materials and appropriate cleaning.
Low assembly quality: improve assembly quality.
Running ring of bearing inner shell: replace bearing and related wear parts.
The axial force is too large: the clearance of the seal ring between 0.2mm and 0.3mm should be cleaned and adjusted, and the diameter of the balance hole of the impeller and the static balance value should be corrected.
Bearing damage: replace bearing.