The method for determining whether the outer spherical bearing should be replaced, that is, the specific method for the outer spherical bearing to be fully utilized and the adjacent damage occurs is as follows:
1) Using external spherical bearing working condition monitoring instrument
It is the most convenient and reliable method to judge the working state of the bearing and determine when the bearing should be repaired by using a working instrument monitoring instrument such as a spectrometer or an SPM or an I-ID-1 type NTN outer spherical bearing.
For example, when using the HD-1 type instrument, when the pointer approaches the danger zone from the warning zone, and the pointer does not return after taking measures such as improving lubrication, it can be found that the problem of the outer spherical bearing itself is not yet When entering the danger zone, repair the bearings. How far from the danger zone begins to repair, can be adjusted by experience. With such an instrument, the working potential of the outer spherical bearing can be fully utilized, the bearing can be repaired in time, and the failure can be avoided, which is safe and economical.

2) Monitor with simple tools
In the case where the above instruments are not available, the operator can hold a tool such as a round bar or a wrench against the outer casing of the outer spherical bearing, and shame the ear on the tool to monitor the sound of the bearing transmitted by the tool. Of course, the medical stethoscope is modified. Also.
Normal outer spherical bearing sound should be uniform, smooth and not harsh, and the abnormal bearing running sound has a variety of intermittent, impact or harsh sound. First of all, we should get used to the normal bearing operation sound, and then we can grasp the abnormal bearing operation sound, and then through the accumulation of practical experience, we can further analyze what kind of abnormal sound corresponds to what kind of bearing abnormality. There are many types of abnormal sounds in the outer spherical bearing, which are difficult to tell, and mainly rely on experience accumulation.
The above is a detailed introduction to the determination method of whether the outer spherical bearing should be replaced, I hope to help everyone.