INA plastic bearing noise "detection method discussion"

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INA plastic bearing noise "detection method discussion"

Source: Bearing network time: 2013-03-26
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If there are cracks, indentations or rust on the tumbling surface of the INA bearing, periodic oscillations and noises such as riveted rivets will occur; the period can be fixed but most of them are in constant correspondence with the rotational speed; the flaw will be continuous on the channel. Occurs; the scar is hidden on the steel ball; and this noise has a certain transition with equipment and smooth conditions.
The control method of this kind of noise is as follows: the equipment does not strike the bearing; when the plastic bearing is assembled with the shaft and then assembled into the bearing housing, the INA bearing is prevented from being inclined, the bearing is prevented from being corroded during storage and the shock oscillation is avoided during transportation, and the viscosity is high. Smooth fat.
Smooth agent selection is faulty, lack of smoothing agent or aging hardening; can cause oscillation and noise of INA bearing; and this noise has no necessary rules. For this situation; only need to choose suitable smoothing agent; adjust its smoothing dose; Extend the service life of the smoothing agent and determine the conversion period reasonably.
There are dust and other foreign matter in the rolling bearing; non-periodic oscillations and so-called dust sounds occur; the oscillation and noise are uncertain; and there are or none.
The control methods of dust sound are: improving the cleaning method of the bearing; the bearing, the shaft, the seat hole and the general fitting parts are all clean and clean before the equipment, the foreign matter in the smoothing agent is eliminated, the sealing of the plastic bearing is improved, and the use of the material is not pure or Plastic embedded with foreign bodies adhere to the frame.
At the top of the list, check the sound condition of the INA bearing when it rolls over because the bearing will be damaged even if it has slight peeling; it will announce abnormal sounds and irregular sounds; therefore, the sounder can be used for resolution; the sounder is selected; the plastic in operation The size and sound quality of the bearing tumbling sound are viewed; it has the effect of preventing it early.
Second, to see the temperature of the INA bearing transformation, if the oil hole can directly measure the bearing outer ring temperature; then more suitable. Under normal conditions; the temperature of the bearing; usually based on the temperature outside the plastic bearing can be estimated If it is smooth and the device is suitable, the bearing temperature will rise sharply; abnormal high temperature will occur; it is necessary to stop the work; take necessary precautions.
Third, check the oscillation condition of INA bearing in the work from the shedding, indentation, rust, crack, wear, etc., which will be reflected in the vibration measurement of the bearing; the bearing oscillation is very sensitive to the damage of the plastic bearing; The bearing oscillating measuring device (frequency analyzer, etc.) can measure the large oscillation. U De Shi Zhi 豢 豢 鲆 鲆 5 5 5 5 5 5 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为Not the same; it is necessary to analyze the measurement value of each machine beforehand and determine its discriminant specification.
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