Bearing common sense of brush-making equipment-a brief description of the viewing method of roller bearing smoothing agent

Brush making equipment bearing common sense-a brief description of how to view the smoothing agent for roller bearings

First, apply a little smoothing agent to conflict between the two fingers, if there is contaminant , Can be felt; or apply a thin layer of smoothing agent on the back of the hand, and then perform sealing light inspection. Then it is time to replace the smoothing agent of the roller. After using the oil-smooth roller bearing to remove the old oil, if possible, you should fill in fresh oil and let the machine rotate for a few minutes at a low speed. As much as possible, make the oil collect the remaining contaminants, and then purify the oil. Note: The oil should be filtered before use. When using grease-smooth bearings to replace grease, the cleaver should be used to prevent any part of the bearing with cotton from connecting corners. Since these residual fibers may be wedged between the tumbling parts and cause damage, especially the use of small bearings should pay attention to this question.　　 After moving for a period of time, the oscillation and noise maintain a certain level, and the frequency spectrum is very single, showing only one or two times the frequency. The frequency spectrum above three times the power frequency is rarely present, and the roller bearing is in a very stable condition and has entered a stable operation period.　　 After continuous operation enters the later stage of operation, bearing oscillation and noise begin to increase, sometimes showing abnormal noise, but the increase in oscillation changes slowly. At this moment, the kurtosis value of angular touch ball bearing suddenly reaches a certain value. We believe that the bearing is now showing up as an early failure.　　 At this time, it is required to closely monitor the bearing and pay close attention to its changes. Afterwards, the bearing kurtosis value began to drop rapidly and approached the normal value, while the oscillation and noise began to increase significantly, and the increase began to accelerate. When the oscillation exceeded the oscillation specification (such as the ISO2372 specification), the bearing kurtosis value It is also beginning to increase rapidly. When both the oscillation specification and the kurtosis value exceed the normal value (the kurtosis can be used relative to the norm), we believe that the roller bearing has entered an advanced stage of failure, and it is necessary to repair the equipment in time and replace the bearing. The bearing exhibits the characteristics of late faults to the severe faults (usually bearing damage such as shaft holding, burns, spalling of the sand frame, raceway, bead wear, etc.). The larger the equipment capacity, the faster the speed. The shorter the interval. Therefore, in the practice of bearing fault diagnosis, once the characteristics of late faults are found, the bearing should be determined and repaired as soon as possible.