SKF imported bearing fault cleaning method

Source: China Bearing Network Time: 2014-07-12

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1. The temperature of the imported bearing is too high during the organization operation; the part of the imported bearing of the device promises a certain temperature; when the tissue is touched by the hand; the handle should not be felt as normal; otherwise, the bearing temperature is too high.
The reason why the temperature of the imported bearing is too high is that the quality of the smooth oil does not meet the demand or the enthalpy change; the viscosity of the smooth oil is too high, the structure device is too tight (the gap is lacking), the inlet bearing device is too tight, and the bearing race is changed on the shaft or the shell. The load is too large, the imported bearing cage or the rolling body is broken.
2. Imported bearing noise rolling bearing promises a subtle work noise during operation; if the sound is too loud or there is abnormal noise or impact sound, it indicates that there is something wrong with the imported bearing.
The cause of the noise of the rolling bearing is more complicated; the first is the wear and tear of the inner and outer rings of the imported bearing. Because of this kind of wear and tear; the cooperation between the imported bearing and the shell, the imported bearing and the shaft is destroyed; the axis is deviated from the correct one. Orientation; abnormal sound when the shaft is moving at high speed. When the imported bearing is exhausted; its outer metal is detached; it will also increase the radial gap of the imported bearing and cause abnormal noise. In addition; the imported bearing is smooth and lacking; constitutes a dry conflict; Bearing crushing, etc. will have abnormal movements. After the bearing wears loose, the cage is loose and damaged; it will also cause damage to the imported bearings.
When the rolling bearing is disassembled, the fault of the imported bearing can be judged according to the damage condition of the imported bearing.
1. The outer surface of the raceway is detached from the bearing and the inner and outer raceway surfaces are subjected to periodic pulsating loads; then the contact stress changes during the attack cycle. When the number of stress cycles reaches a certain value; in the roll or inside, On the outer ring raceway, there will be fatigue and shedding. If the load of the imported bearing is too large, this fatigue will be aggravated. Others; the imported bearing device is not correct, the shaft is tortuous; the raceway will be off the surface. The imported bearing raceway The fatigue shedding will lower the accuracy of the shaft's work; the tissue will oscillate and noise.
2. The imported bearings of imported bearings burn burn have tempering color on the raceway and roll body. The cause of burn is usually lack of smoothness, the quality of smooth oil does not meet the demand or change; and the bearing device is too tight.
3. The plastic deformation of the imported bearing has uneven pits on the touch surface of the roller and the roller; clarifies the plastic deformation of the bearing. The reason is that the imported bearing is under the effect of large static load or impact load; The succumb to the limit; this condition usually occurs on low-speed rotating inlet bearings.
4. The reason for the crack of the bearing bearing ring crack bearing seat can be that the imported bearing cooperation is too tight; the bearing foreign or inner ring is loose; the bearing of the imported bearing is deformed; the outer bearing of the device is poorly processed.
5. The reason why the cage is broken is that it is smooth and lacking; the rolling body is broken; the seat is inclined.
6. The reason why the metal of the cage adheres to the tumbling body is that the tumbling body is stuck in the cage or is lacking in smoothness.
7. Severe wear of the raceway can be caused by foreign objects falling into the race; lack of smooth oil or smooth oil trademark is not suitable.

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