Core Tips: 1. Determine the best timing for bearing repair. It is better to change the working condition of the rolling bearing to the repair. This should be judged from the damage law and characteristics of the bearing. The most used small and medium-sized bearings
First, determine the best time for bearing repair
It is better to change the state of the rolling bearing to the repair, which is judged from the damage law and characteristics of the bearing. The damage of the most used small and medium-sized bearings is usually based on fatigue and excessive wear of the ferrule or rolling element. When the rolling surface of the bearing enters the third stage of wear, or pitting and spalling have occurred, the bearing will quickly become ineffective, and the damage of the raceway surface is already severe, the repair is difficult, or the repair value has been lost.
However, before the above-mentioned stage of the bearing, the wear is relatively slight, and the fatigue may occur only in the depth of several micrometers to several tens of micrometers below the surface layer of the rolling surface, so that the bearing can be repaired at this time, and the better can be obtained at a small cost. Repair effect. In summary, the repair period of the rolling bearing has been fully utilized for a period of time when the bearing has been working for a long period of time, and it is most appropriate to enter the repair before the damage occurs.
Second, the method of determining the timing of bearing repair
The specific judgment method of whether the bearing should be repaired, that is, the specific judgment method that the bearing has been fully utilized and the adjacent damage occurs is as follows:
1) Using the bearing working condition monitoring instrument
It is the most convenient and reliable method to judge the working condition of the bearing and determine when the bearing should be repaired by using the instrument such as iron spectrometer or SPM or I-ID-1 bearing working condition monitoring instrument.
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 bearing itself is a problem. When the bearing is repaired. How far from the danger zone begins to repair, can be adjusted by experience.
With such an instrument, it is safe and economical to make full use of the bearing working potential, to repair the bearing in time, and to avoid malfunctions.
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 machine that is closest to the bearing, and shame the ear on the tool to monitor the sound of the bearing transmitted by the tool. Of course, it can be modified with a medical stethoscope.
First, determine the best time for bearing repair
It is better to change the state of the rolling bearing to the repair, which is judged from the damage law and characteristics of the bearing. The damage of the most used small and medium-sized bearings is usually based on fatigue and excessive wear of the ferrule or rolling element. When the rolling surface of the bearing enters the third stage of wear, or pitting and spalling have occurred, the bearing will quickly become ineffective, and the damage of the raceway surface is already severe, the repair is difficult, or the repair value has been lost.
However, before the above-mentioned stage of the bearing, the wear is relatively slight, and the fatigue may occur only in the depth of several micrometers to several tens of micrometers below the surface layer of the rolling surface, so that the bearing can be repaired at this time, and the better can be obtained at a small cost. Repair effect. In summary, the repair period of the rolling bearing has been fully utilized for a period of time when the bearing has been working for a long period of time, and it is most appropriate to enter the repair before the damage occurs.
Second, the method of determining the timing of bearing repair
The specific judgment method of whether the bearing should be repaired, that is, the specific judgment method that the bearing has been fully utilized and the adjacent damage occurs is as follows:
1) Using the bearing working condition monitoring instrument
It is the most convenient and reliable method to judge the working condition of the bearing and determine when the bearing should be repaired by using the instrument such as iron spectrometer or SPM or I-ID-1 bearing working condition monitoring instrument.
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 bearing itself is a problem. When the bearing is repaired. How far from the danger zone begins to repair, can be adjusted by experience.
With such an instrument, it is safe and economical to make full use of the bearing working potential, to repair the bearing in time, and to avoid malfunctions.
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 machine that is closest to the bearing, and shame the ear on the tool to monitor the sound of the bearing transmitted by the tool. Of course, it can be modified with a medical stethoscope.
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