How to determine the timing of bearing repair

The specific method of judging whether the bearing should be reported for repair, that is, the specific method of judging whether the bearing has been fully utilized and the near damage occurs is as follows:
1) Use bearing working condition monitoring instrument
It is the most convenient and reliable method to use such as ferrograph or SPM or I-ID-1 bearing working condition monitoring instrument to judge the working condition of the bearing and decide when the bearing should be reported for repair.
For example, when using the HD-1 instrument, when the pointer approaches the danger zone from the warning zone, but the pointer does not return after taking measures such as improved lubrication, it can be determined that the bearing itself is the problem, and you can take advantage of it before entering the danger zone. At the time, report the bearing for repair. Exactly how far away from the dangerous zone is to report for repairs can be adjusted by experience.
With such an instrument, the working potential of the bearing can be fully utilized, the bearing can be reported for repair in time, and failures can be avoided, which is safe and economical.
2) Use simple tools to monitor
In the absence of the above-mentioned equipment, the operator can hold a tool such as a rod or wrench against the part of the machine housing closest to the bearing, and put the ear on the tool to listen to the sound of the bearing running from the tool. Of course, it can also be modified with a medical stethoscope. .
The normal bearing running sound should be uniform, stable and not harsh, while the abnormal bearing running sound has a variety of intermittent, impact or harsh sounds. First, get used to the normal bearing running sound, and then We can grasp and judge the abnormal bearing running sound, and then through the accumulation of practical experience, we can further analyze what kind of abnormal sound corresponds to what kind of abnormal bearing phenomenon.