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Question:

What is the cause of a large bearing vibration of a turbine and other bearings?

What is the cause of a large bearing vibration of a turbine and other bearings?

Answer:

There is a lot of vibration in a single bearing, and it needs to be analyzed in combination with the data on the disk. I hope you find out the reason at an early date.
May be: 1, the bearings to measure the vibration of the probe loose, measured false value; 2, the bearing cover loose; 3, to the bearing oil film instability; 4, the bearing bush defects; 5, the bearing clearance gap.
Because other bearing vibration is normal, can eliminate unbalance, misalignment and rubbing may, bearing vibration large connection stiffness problems, such as lack of lubricating oil, bearing, bearing seat, platen and the foundation of the existence of deficiencies and possible loosening of the tight force.
If the shock bearing is not new, there may be the bearing itself, then change it. If the new bearings and bearings are genuine, I suggest you detect dynamic balance

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