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Identification of INA bearings
Identification of INA bearings and the selection of KOYO bearings
Bearing Vibration
Precautions for SKF Bearing Vibration generation and operation

Vibration of fag bearing and temperature inspection of fag bearing

  • FAG bearing vibration is very sensitive to bearing damage.For example, spalling, indentation, corrosion, crack, wear, etc. will be reflected in bearing vibration measurement. Therefore, the vibration can be measured by using a special bearing vibration meter, and the specific abnormal conditions can not be inferred by frequency division.
  • The measured values are different due to the service conditions of the bearing or the installation position of the sensor. Therefore, it is necessary to analyze and compare the measured values of each machine in advance to determine the judgment standard.

Temperature of fag bearing

  • Generally, the temperature outside the bearing chamber can be inferred. It is more appropriate if the outer ring temperature of the bearing can be directly measured by using the oil hole.
  • The temperature of bearing begins to rise slowly with the operation of bearing.Stable state after 1-2 hours. The normal temperature of fag bearing varies with the thermal capacity, heat dissipation, rotating speed and load of the machine.
  • If the lubrication and installation parts are appropriate, the bearing temperature will rise sharply and abnormal high temperature will occur. At this time, the operation must be stopped and necessary preventive measures must be taken.
Vibration and temperature inspection of fag bearing
Vibration and temperature inspection of fag bearing
fag bearing

The thermal sensor can monitor the operating temperature of the bearing.The thermal sensor can be used to monitor the working temperature of bearing at any time, and automatically alarm or stop when the temperature exceeds the specified value to prevent the occurrence of combustion shaft accident.

  1. High temperature often indicates that bearing is in abnormal condition.High temperatures are also detrimental to bearing lubricants. Sometimes bearing overheating can be attributed to bearing lubricant. If the temperature of bearing exceeds 125 ℃ for a long time, the service life of bearing will be reduced. 
  2. The causes of high temperature bearings include insufficient or excessive lubrication and lubricant. It contains impurities, excessive load, FAG bearing ring damage, insufficient clearance, high friction caused by oil seal, etc.
  3. Continuous monitoring of bearing temperature is necessary.Whether measuring bearing itself or other important parts. If the operating conditions remain unchanged, any temperature change can indicate that a fault has occurred.
  4. Regular measurement of bearing temperature can be made by means of thermometer.For example, the digital thermometer can accurately measure the temperature of bearing and display it in ℃ or Fahrenheit.

Importance of fag bearings

It means that when it is damaged, the equipment will be shut down. Therefore, this kind of bearing should be equipped with a temperature detector.Under normal conditions, FAG bearings will have a natural temperature rise after just lubricated or re lubricated and last for one or two days.

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