How to judge the bearing failure in the process of bearing operation?
Bearings are an important part of the conveyor.The use of roller bearings in the course of its show a strong regularity, and repeatability is very good. Normal high-quality bearings in the beginning to use, the vibration and noise are relatively small, but some scattered spectrum, the amplitude is smaller, may be due to some manufacturing processes, such as surface burrs caused. After a period of exercise, the vibration and noise are maintained at a certain level, the spectrum is very simple, and only the first and second harmonic frequencies appear. Rarely appear more than three times the frequency spectrum above, the bearing condition is very stable, into a stable working period.
Continue to run into late use, rolling bearing vibration and noise began to increase, and sometimes abnormal noise, but changes in vibration more slowly, this time, the bearing kurtosis value suddenly began to reach a certain value. In our opinion, the rolling bearing at this time is the initial failure.
At this time, it requires strict monitoring of the rolling bearing, pay close attention to its changes. Since then, the bearing kurtosis value again began to decline rapidly and approached the normal value, while the vibration and noise began to increase significantly, and the increase began to accelerate. When the vibration exceeded the vibration standard (such as ISO2372), the bearing kurtosis value began Rapid increase, when both exceed the vibration standard, and the kurtosis value also exceeds the normal value (available kurtosis relative standard), we believe that the bearing has entered the late failure, the timely maintenance of equipment, replacement of rolling bearings.
Rolling bearings show signs of late failure to a serious failure (usually bearing damage such as axle, burn, sand rack spalling, raceway, bead wear, etc.) for most of the time less than a week, the greater the capacity of the device, the faster the speed of its The shorter the interval. Therefore, in the actual rolling bearing fault diagnosis, once the late fault features found, should be determined to determine the existence of failure bearing as soon as possible to arrange maintenance.Use low-noise bearings that waviness is very small bearings, carefully choose the conditions of use. Rolling often affect the noise of the entire machinery, reducing raceway noise can reduce the noise of the entire machinery.
Tongxiang is a conveyor accessories manufacturers in China,if you need,please contact us.
Continue to run into late use, rolling bearing vibration and noise began to increase, and sometimes abnormal noise, but changes in vibration more slowly, this time, the bearing kurtosis value suddenly began to reach a certain value. In our opinion, the rolling bearing at this time is the initial failure.
At this time, it requires strict monitoring of the rolling bearing, pay close attention to its changes. Since then, the bearing kurtosis value again began to decline rapidly and approached the normal value, while the vibration and noise began to increase significantly, and the increase began to accelerate. When the vibration exceeded the vibration standard (such as ISO2372), the bearing kurtosis value began Rapid increase, when both exceed the vibration standard, and the kurtosis value also exceeds the normal value (available kurtosis relative standard), we believe that the bearing has entered the late failure, the timely maintenance of equipment, replacement of rolling bearings.
Rolling bearings show signs of late failure to a serious failure (usually bearing damage such as axle, burn, sand rack spalling, raceway, bead wear, etc.) for most of the time less than a week, the greater the capacity of the device, the faster the speed of its The shorter the interval. Therefore, in the actual rolling bearing fault diagnosis, once the late fault features found, should be determined to determine the existence of failure bearing as soon as possible to arrange maintenance.Use low-noise bearings that waviness is very small bearings, carefully choose the conditions of use. Rolling often affect the noise of the entire machinery, reducing raceway noise can reduce the noise of the entire machinery.
Tongxiang is a conveyor accessories manufacturers in China,if you need,please contact us.
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