How to Inspect Bearings

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      Bearing is quite common in life. In the process of operation, bearings will have various problems. How to detect bearings? 39 bearing mesh bearing type inquiry.

Bearing oscillation and bearing oscillation are very sensitive to bearing damage, such as shedding, indentation, rust, cracks, wear and tear, etc. can be reflected in bearing oscillation measurement. Therefore, the large vibration can be measured by using a special bearing oscillator. The measured values vary according to the operating conditions of bearings or the orientation of sensor devices. Therefore, it is necessary to analyze and compare the measured values of each machine before determining the criterion.

Smoothness has an important impact on fatigue life and conflict, wear, temperature rise, oscillation of rolling bearings. Without normal smoothness, bearings can not work. Analysis of the causes of bearing damage indicates that about 40% of bearing damage is related to poor smoothness. Therefore, the excellent smoothness of bearings is a useful way to reduce bearing conflict and wear. Bearing smoothness also has many effects such as heat dissipation, rust prevention, sealing, flat cushioning and so on.
The rolling sound of bearings is inspected by a microphone. Even if the bearings are damaged by slight peeling, they will announce abnormal and irregular sounds, which can be distinguished by a microphone.
Bearing temperature, generally there is the temperature outside the bearing chamber can be estimated, if the use of oil holes can directly measure the temperature of the bearing outer ring, it is more appropriate. Generally, the temperature of the bearing rises gradually with the beginning of the operation and reaches a stable state after 1-2 hours. The normal temperature of the bearing varies with the heat capacity, heat dissipation, speed and load of the machine. If the device is smooth and suitable, the bearing temperature will rise sharply and abnormal high temperature will occur. At this time, it is necessary to stop the operation and adopt the necessary precautions. The use of heat sensors can monitor the operating temperature of bearings at any time, and complete the active alarm or stop when the temperature exceeds the specified value to avoid the occurrence of the end of the burning shaft.


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