How to check operation of bearing fault and its processing method - bearing knowledge

Today to discuss with you in the process of operation, how to check the import bearings of rolling noise, vibration, temperature and lubrication condition, in order to find and solve problems in time, avoid unnecessary economic losses. Today is mainly about checking import bearings rolling noise, vibration and temperature of these aspects. We will be in a future article about lubrication to more detailed instructions. First is based on the imported bearing rolling voice to identify and check, we can use sound, the size and quality of imported bearings rolling sound in operation to check. Because of injury, such as import bearings even with slight detachment also emits an exception and irregular, and therefore with the sound of the measuring device to identify, have the effect of prevention in advance. Second import bearing vibration in the operation to identify the inspection, imported bearing vibration is very sensitive to bearing damage. Such as peeling, indentation, rust, crack and wear will be reflected in the imported bearing vibration measurement, therefore, through the use of special imported 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. Finally is based on import to check the temperature of the bearings, imported bearing temperature, generally can be predicted on the basis of imported bearings of the outdoor temperature, if using the oil hole can directly measure temperature of bearing outer ring, is more appropriate. Usually, the temperature of the imported bearing with operation began to slowly rise, 1 - After 2 hours to reach steady state. Imported bearings of normal temperature due to the heat capacity of the machine, 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. Based on a lot of test data, table 4 - 1 lists the various kinds of mechanical bearing outer temperature averages at work, for your reference. Due to temperature lubrication, rotational speed, load, the influence of environment, the temperature range of values in the table only said roughly. Using thermal device can monitor the bearing temperature at any time, and realize e. automatic alarm when the temperature is more than the household or stop to prevent the shaft accidents.