When the bearing is removed for inspection, it is necessary to use camera and other methods to make the appearance record. In addition, confer the amount of residual lubricant and sample the lubricant, then clean the bearing.
In order to distinguish whether the dismantled bearing can be used from scratch, it is necessary to check its standard accuracy, rotating accuracy, internal clearance and cooperation surface, raceway surface, holder and seal ring. The inspection results can be distinguished by the use of inertial bearings or bearings. The other criteria are different according to mechanical function and importance, and inspection cycle. If the following damage occurs, bearing shall not be used from the beginning, it is necessary to exchange.