SKF angular contact ball bearing with damage to the cause of the failure analysis

In front of the angular contact ball bearing totally destroyed, it provides users find enough time, do not ignore the existence of this kind of friction, it will cause a decrease in the speed of riding, make long distance energy consumption greater speed slower. If subtle for surface roughness, if there is proper thickness of lube film, the surface stress generated by the probability is quite low, which is why the choice of appropriate for the reason of engine oil for lubrication, however, if the load exceeds the oil film pressure of pu value ( The fatigue load limit value, such as high speed, high pressure shock) , the material fatigue will come sooner or later. SKF bearing materials metallurgy quality was affected bearing the primary essential in early off work. Follow metallurgy skills ( For example, the bearing steel vacuum degassing, etc. ) The increase of the original data quality improvement. Original data quality elements in bearing off effect analyze the proportion of distinct decline once, but it is still the angular contact ball bearing off one of the primary influence factors. Material can be properly still are elements of a bearing off effect analysis needed to think. Bearing effect analysis of the primary obligation, that is, on the basis of many sets of data, analyze data and effective way, find out the formation bearing effect of primary factors, so as to puts forward improvement measures for extending bearing period of service, to prevent sudden angular contact ball bearing attack early off work. Bearing vibration is sensitive to SKF bearing damage, such as peeling, indentation, rust, crack and wear will be reflected in the angular contact ball bearing vibration measurement, therefore, through the use of special bearing vibration tester ( Frequency analyzer, etc. ) Can measure the size of the vibration, through frequency points cannot deduce the abnormal situation. Measured values of bearing or sensor installation position and different using conditions, thus requiring prior to each machine is analyzed by the measured value of the determined after judgment standard. Bearing temperature, generally have a bearing on the surface of the outdoor temperature can be predicted, if using the oil hole can directly measure temperature of bearing outer ring, is more appropriate. Usually, SKF bearing temperature as bearing operation began to rise slowly, 1 - After 2 hours to reach steady state. The normal temperature of deep groove ball bearings for machine heat capacity, heat dissipating capacity, rotational speed and load. If the appropriate lubrication, installation department, the bearing temperature will rise sharply, appear unusually high temperature, must stop at this moment, take the necessary precautions. Using thermal device can monitor the working temperature of angular contact ball bearing, and implement e. automatic alarm when the temperature exceeds or stop to prevent the shaft accidents. In high temperature often is in abnormal situation. High temperature also harmful to the bearing lubricant. Sometimes overheated bearings can be classified to the bearing lubricant. If the bearing temperature for a long time even the transfer of more than 125 ℃ lower SKF bearing life. The causes of high temperature bearing include: lubrication inadequate or excessive lubrication, the lubricant. Contains impurities, heavy load, bearing damage, clearance, high friction and oil seal and so on.