Fault identification method of bearing

2022-07-27

It is very important to improve productivity and economy that bearing faults in operation can be identified or predicted without disassembly inspection. The main identification is as follows:

1) Recognition by voice

Sound recognition requires rich experience. Must be fully trained to be able to identify bearing sounds and non bearing sounds. For this reason, professionals should do the work as much as possible. The sound of the bearing can be heard clearly by sticking the sound listening stick on the housing.

2) Identification by operating temperature

This method belongs to the comparison method, and is only limited to the occasions where the operating state does not change much. Therefore, continuous temperature recording is necessary. When a fault occurs, the temperature will not only rise, but also change irregularly. This method is suitable for use with voice recognition.

3) Identification by lubricant

Sample and analyze the lubricant, and judge whether it is mixed with foreign matters or metal powder according to its pollution degree. This method is particularly effective for bearings that cannot be observed close to or large bearings.

It is impossible to directly observe the bearing during operation, but the abnormal condition of the bearing can be detected through noise, vibration, temperature, lubricant, etc.

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