1. Through the working temperature to recognize

This method is comparable recognition method, just by running state don't change occasion. Therefore, the need for temperature continuous record. Malfunction,not only temperature rise , still can appear irregular change.

2. Through the voice recognition

Through the voice recognition need to have rich experience. Must pass adequate training to able to identify with the bearing sound. Therefore, we should try to designate personnel to carry out the work. Use to listen to the sound device, or listen to sound great posted on the housing can be clearly heard the voice of the bearing.

3. Through the lubricant state of the recognition

 
Sampling analysis of lubricant, through its dirty degree or metal powder into whether foreign judgment, etc. This method can't close to the observation of bearing or bearing large is effective
 



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