Three Methods of Identifying the Faults of Automobile Water Pump Shaft Bearing

Date:2019-10-31 Author: Click:

Three ways to identify faults in automobile water pump shaft bearings:

1. Recognize through sound

Recognition through sound requires a rich experience. It is necessary to go through plenty of practice to be able to distinguish between bearing sound and non-bearing sound. For this reason, a dedicated person should do the job as far as possible. You can clearly hear the sound of the bearing with a listening device or a listening stick attached to the shell.

2. Identify after operating temperature

This method is a comparative identification method and is limited to occasions where the work situation does not change much. For this reason, it is necessary to record the temperature continuously. When something goes wrong, not only will the temperature increase, but it will also show irregular changes. It is advisable to use this method together with the sound identification method.

3. Identified by the condition of the lubricant

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The lubricant is sampled and analyzed, and after its turbidity, it is judged whether it is mixed with foreign matter or metal powder. This method is especially useful for bearings that cannot be accessed for investigation or for large bearings

The characteristic of lacquer rust is that it mostly occurs in the sealed motor? The motor sounds very good during assembly? But after some time in the warehouse? The abnormal noise of the motor becomes very large. Remove the water pump shaft and the imported bearing. There is serious rust. . In the past, many manufacturers would think it was a problem with imported bearings? After our continuous publicity. The electric machine factory has realized that the problem is mainly the insulating paint.

This problem is mainly because the acidic substance volatilized from the insulating paint forms corrosive substances under a certain temperature and humidity. After the imported bearing groove is corroded, the imported INA bearing is damaged. The problem can only be to select a good insulating paint and ventilate for a period of time after drying and assembly.