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Bearings exhibit a strong regularity in the course of its use, and the repeatability is very good. High quality stainless steel bearings used in the beginning, vibration and noise are relatively small, but some scattered spectrum, amplitude is small, may be due to some defects in the manufacturing process, such as surface burrs caused by.
The campaign for a period of time, to maintain a certain level of vibration and noise, frequency spectrum is very single, only appeared one or two times. Rarely appears three times above the frequency spectrum, stainless steel ball bearing condition is stable, entered the period of stable work.
Continue to run into the use of late, 30308 roller dimensions bearing vibration and noise began to increase, and sometimes appear abnormal sound, but the vibration increases as the initial fault.
First, the bearing spectral analysis found that nonferrous metal element concentration anomaly, and iron spectrum in many nonferrous metal components of the submicron wear particles; exceed the standard lubricating oil water content exceed the standard, acid value, that 30308 roller dimensions bearing tile surface corrosion.
Second, bearing spectral analysis of iron concentrations found abnormal, many of Ferrographic submicron wear particles of iron components, lubricating oil water content and acid value anomaly, show that the bearing tile back due to fretting wear.
Third, stainless steel ball bearing iron spectrum in iron cutting abrasive or black oxide particles, temper the metal surface, show that the journal surface bearing by injury.
Fourth, 30308 roller dimensions bearing iron spectrum is found to have a cutting abrasive, and abrasive composition for non-ferrous metals, show that the bearing surface strain.
Fifth, bearing spectral analysis of iron concentrations found abnormal, the sub micron particle has a lot of Ferrographic iron composition of lubricating oil water content exceed the standard value, or that exceed the standard, the journal surface of needle bearing corrosion.
Now know why 30308 roller dimensions bearing fault, then we mainly pay attention to these aspects, the service life will be that of stainless steel bearing long.
When the external hard particle material into the bearing, and the pressure between the body and the raceway, can make the surface indentation. In addition, excessive impact load can also produce local plastic deformation and the formation of pits contact surface. When the 30308 roller dimensions bearing static, even if the load is very small, the vibration of surrounding environment will also be in the raceway formation of uniformly distributed pits.
When the 30308 roller dimensions bearing seal is not good, make the material dust or particles into the bearing, or poor lubrication, abrasion of contact surface will cause serious or wear, and the vibration and noise of stainless steel bearing.