Judge IKO high temperature bearing fault maintenance method in use of knowledge - bearing

High temperature bearing showed a strong regularity in the process of its use, and the repeatability is very good. Normal high quality bearing, at the beginning of the use of vibration and noise are relatively small, but there are some scattered of spectrum amplitude is small, may be due to some defects in the process of manufacturing, such as surface caused by burrs, etc. Movement after a period of time, maintain a certain level of vibration and noise, frequency spectrum is very single, only one or two times the frequency. Rarely appear more than three times the power frequency spectrum, IKO bearing condition is very stable, steady working period. Continue to run into the use of late, after bearing vibration and noise began to increase, sometimes a different sound, but the change of vibration increase is relatively slow, at this point, the bearing kurtosis value began suddenly reaches a certain value. We believe that the bearing is characterized by the early failure. At this point, requires the high temperature bearing is monitored closely, pay close attention to the change. Since then, bearing kurtosis value began falling fast, and is close to normal, and significant increase in vibration and noise, it began to accelerate the increase, when the vibration more than standard ( Such as ISO2372 standard) , its bearing kurtosis value also began to increase rapidly, when more than vibration standard, and kurtosis value is more than normal ( Available kurtosis relative standard) When we think of IKO bearing fault has entered the late production, should be timely maintenance equipment, replace the bearing. Swedish high temperature bearing show late fault feature to severe fault ( For bearing damage, such as holding shaft commonly, burns, sand spallation, raceway, wear beads, etc. ) Most of time not more than a week, the bigger the equipment capacity, the faster the speed, the shorter the time interval. Therefore, in actual IKO bearing fault diagnosis, once found late fault characteristics, should be decisive judgment is bearing fault, arrange inspection as soon as possible. Use factors mainly refers to install, use, maintenance, maintenance, repair and so on meets the technical requirements. According to the bearing installation, use, maintenance, maintenance of technical requirements, IKO bearings in operation on the load, speed, temperature, vibration, noise and lubrication condition monitoring and inspection, found that abnormal immediately to find the reason, adjustment, so that it is back to normal. First of all, the spindle spindle bearing during operation, to fully guarantee the lubrication, and according to the actual usage add lubricating oil regularly, not long time cutting oil. So, for the user enterprise, should choose a better, more suitable spindle lubricating oil. New special spindle oil can significantly improve the lubrication performance, extend the oil change period, prolong the service life of the spindle and IKO bearings, also has good anti-rust, anti-corrosion performance, etc. Secondly, using reinforced nylon material cage bearing, using temperature should be lower than 120 ℃, it is strictly prohibited to cooking oil to clean. In addition, the spindle maintenance should be paid attention to when cleaning method, to prevent damage or scratch the surface of the roller. Try to remove the Swedish residue, high temperature bearing parts should be flush, suction bolsters internal cleaning method of residual oil is preferred. Attention should be paid to avoid the dumping of type and make the clean garbage accumulation residue in bearing parts, lead to IKO bearings produce the problem such as noise, wear failure.