How to determine and repair the bearing repair

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How to determine and repair the bearing repair

Source: China Bearing Network Time: 2018-02-23

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First, determine the best opportunity for bearing repairs. It is better to roll the bearing to the condition to be repaired; this should be judged from the damage rules and characteristics of the bearing. The damage of the most used small and medium-sized bearings; usually by ferrule or tumbling Body fatigue and excessive wear are dominant. When the bearing rolls over the surface into wear for the third period; or has pitting and falling off; the bearing will soon tend to fail; at this moment the damage of the raceway appearance is very serious; Hard; or has lost the repair value.
However, the bearing is before the above period; the wear is fine; the fatigue may only occur in the depth of several micrometers to several tens of micrometers under the outer surface of the tumbling outer surface; therefore, the bearing is repaired at this moment; it can be better with a small value. The repairing effect of the rolling bearing; the repair period of the rolling bearing is to be used for a period of time when the bearing has been operating properly; it has been fully utilized; and it is most appropriate to enter the repair before the damage is presented.
Second, the bearing repair opportunity to determine the method of whether the bearing should be repaired in detail; that is, the bearing has been fully utilized and the near-damage of the detailed discriminating method is as follows:
1) Using the bearing operation monitoring instrument, such as the iron spectrometer or SPM or I-ID 1 bearing operation monitoring instrument to determine the bearing operation status and when the bearing should be repaired; this is the most convenient and reliable method .
For example, when using the HD 1 type instrument; when the pointer is close to the danger zone by the warning zone; and the pointer does not come back after adopting the method of improving the smoothness, etc.; it can be found that the bearing itself is a problem; at this moment, when the danger zone is not entered; Repair the bearing. After all, it is far from the danger zone to start repairing; it can be adjusted by experience.
The use of such instruments; can fully utilize the potential of bearing operations; repair the bearings in time; and prevent the occurrence of problems; it is safe and economical.
2) Use simple things to monitor in the case where the above instruments are not available; the operator can hold the round bar or the wrench and other things that are closest to the outer casing of the bearing; the ear is ashamed to monitor the sound of the bearing from the thing; It can also be modified with a medical stethoscope.
The normal bearing working sound should be uniform, smooth and not sharp sound, and the abnormal bearing working sound has a lot of intermittent, impact or sharp sound. First of all, you should get used to the normal bearing working sound, and then you can grasp the abnormal working sound of the bearing; then accumulate through the practical experience; and further can distinguish what kind of abnormal sound corresponds to what kind of bearing is not normal. Representation. There are many types of abnormal sounds in bearings; it is difficult to tell;
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