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NSK imported bearing demand exchange conditions "resolution strategy"
Source: China Bearing Network Time: 2018-05-14
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1. The cage wears significantly or the rivet is significantly relaxed.
2. The discoloration due to heat is significant.
3. There are severe indentations and marks on the raceway surface and the rolling body.
4. There are significant card injuries on the rolling track surface, the ribs and the rolling body.
5. There is crack on any one of the ferrule and the rolling body.
6. There is rust on the raceway surface and the rolling body; there is injury.
7, sealed with a smooth grease bearing; seal ring or dust cover damage is significant.
8. There is significant creep on the inner diameter surface of the inner ring or the outer diameter surface of the outer ring.
The following is a detailed description of the bearing that has been fully utilized and the near-damage is presented. 1. Use simple things to monitor in the absence of the above-mentioned instruments; the operator can hold the round bar or wrench and the most closely related parts of the machine casing; The ear is ashamed to monitor the sound of the bearing work transmitted from the east and west; of course, it can be modified by the medical stethoscope. The normal bearing operation sound should be uniform; the smooth and not sharp sound; the abnormal bearing operation sounds are broken. Continued; impact or sharp sound. First of all, you should get used to the normal bearing operation sound; then you can grasp the abnormal NSK imported bearing operation sound; then the accumulation of practical experience; further can be divided into what kind of The normal sound corresponds to what kind of bearing is not normal. There are many kinds of abnormal sounds in the bearing; it is difficult to say; it mainly depends on experience accumulation.
2, the use of bearing operation monitoring equipment using such as the spectrometer or SPM or I-ID 1 bearing operating condition monitoring instrument to determine the bearing operating conditions and when the bearing should be repaired; this is the most convenient and more secure approach .
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.
For example, when using the HD 1 type instrument; when the pointer is close to the dangerous area by the warning area; and the pointer does not come back after adopting the method of improving the smoothness, etc.; it can be found that the NSK imported bearing itself is difficult; at this moment, the danger zone is not entered. When the bearing is repaired. After all, it is far from the danger zone to start repairing; it can be adjusted by experience.
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