Thrust Spherical Roller Bearing Fault common repair methods

Exercise period of time, to maintain a certain level of vibration and noise, the spectrum is very simple, there is only one or two multiplier. Rarely occurs more than three times the frequency spectrum, thrust spherical roller bearing condition is very stable, into a stable working period.
Continue to run late into the use of bearing vibration and noise begins to increase, sometimes different sound, but the change in vibration increases more slowly this time, thrust spherical roller bearings kurtosis value starts suddenly reaches a certain value. We believe that the performance of the initial point bearing failure.
At this time, it requires close monitoring of the bearing, pay close attention to the changes. Since then, bearing kurtosis values ​​began to decline rapidly, and close to normal, while the vibration and noise begins significantly increased, its growth began to accelerate significantly, when the vibration exceeds vibration standards (such as ISO2372 standard), and its bearing kurtosis value starts Rapid increases, when both exceed vibration standards, and kurtosis values ​​than normal (available kurtosis relative standard), we believe that the roller bearing has entered the late failures generate the need for timely maintenance equipment, replacement bearings.
Bearing fault characteristic late to exhibit serious failure (generally axle Backing bearings damage such as burns, sand shelf spallation, raceway, beads and wear) is not more than one week big time, equipment, greater capacity, faster speed, and its The shorter the interval. Therefore, the actual thrust spherical roller bearing fault diagnosis, once found fault with advanced features, should decisively determine the bearing is faulty, repair as soon as possible.
The fatigue life of rolling bearing lubrication and friction, wear, temperature, vibration, etc. have a major impact, there is no normal lubrication, bearings will not work. Cause bearing damage analysis showed that about 40% of the bearing damage are related with poor lubrication. Therefore, the bearing well lubricated bearing is to reduce friction and wear of effective measures. In addition, the bearing lubrication and cooling, rust, sealing, ease the impact and other effects, thrust spherical roller bearing lubrication effects can be briefly described as follows:
a. the two rolling surface contact with each other or form a film between the sliding surfaces of the second surface spaced from the contact surface to reduce friction and wear.
b. using oil lubrication, especially the use of circulating oil lubrication, oil mist lubrication and injection lubrication, the lubricant inside the bearing can take away most of frictional heat, serve as an effective heat sink.
c. lubricated with grease, you can prevent external dust and other foreign matter into the bearing and sealing effect.
d. lubricant has to prevent metal corrosion effect.
e. extend bearing fatigue life.