Four row cylindrical roller bearing temperature and vibration of the troubleshooting methods

One, the vibration of the bearing, bearing vibration is sensitive to bearing damage, such as peeling, indentation, rust, crack and wear will be reflected in four row cylindrical roller 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. Second, bearing temperature: the temperature of the bearing, 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, four row cylindrical roller bearing temperature as bearing operation began to rise slowly, 1 - After 2 hours to reach steady state. The normal temperature of bearing 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 bearing temperature at any time, and realize e. automatic alarm when the temperature exceeds or stop to prevent the shaft accidents. Four row cylindrical roller bearing fault feature show serious fault of no more than a week old, equipment, the capacity is bigger, faster, the shorter the time interval. Therefore, the actual bearing fault diagnosis of faults, its advanced function, once the should decisively determines the spherical roller bearing fault, repair as soon as possible. 1, selection of shaft and the bearing chamber tolerance and control: after the bearing pressure into the bearing should be flexible rotation without blocking. If there are any obvious rotation is not flexible, indicates the size of the shaft is too big, tolerance to downgrade. 2, bearing assembly way: because the bearing is high precision products, such as improper assembly is easy to cause damage to channel four row cylindrical roller bearing, result in bearing damage. 3, the assembly to prevent foreign body: four row cylindrical roller bearings in loaded on the rotor dynamic balance when it is easy to dynamic balance of iron into the bearing inside, so it is best to install bearing before do dynamic balance. 4, paint, rust prevention: paint rust is characterized by multiple in sealing type motor, the motor sound is very good, when it is assembled but put some time in the warehouse, the motor sound is very big, remove the bearing has serious rust phenomenon. Four row cylindrical roller bearing in the process of inspection, if there are too many problems, also suggests that this bearing is probably the counterfeit import bearings. Also is to remind you must be careful in the choice.