SKF bearing in operation how to check failures - bearing knowledge

1. First is based on the voice of SKF bearing rolling to identify and check we can adopt the measuring apparatus, the size and quality of SKF bearing rolling sound in operation to check. As SKF bearing even with slight stripping damage, also an exception and irregular, and therefore with the sound of the measuring device to identify, have the effect of prevention in advance. 2. Secondly, SKF bearing vibration in the operation to identify check SKF bearing vibration is very sensitive to bearing damage. Such as peeling, indentation, rust, crack and wear will be reflected in the SKF bearing vibration measurement, therefore, through the use of special SKF 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. 3. Finally on the basis of SKF bearing to check the temperature of SKF bearing temperature, usually on the basis of SKF bearing outside surface temperature can be predicted, if using the oil hole can directly measure temperature of bearing outer ring, is more appropriate. Usually, SKF bearing temperature with operation began to slowly rise, 1 - After 2 hours to reach steady state. SKF bearing 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.