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What is the reason for the noise of 4010 DC fan?

Time:2022-01-20Views:0


  The DC fan belongs to the motor series and is a high-speed rotating electronic product. Various abnormal changes may be found during operation, such as no rotation, abnormal noise (also known as noise), slow rotation, etc. The easiest and most controversial problem of DC fans is noise. What is the reason?

 

    1. When choosing a DC fan, the bearing is very important. Among them, oil-bearing DC fans are the most prone to noise. This bearing has low cost and low bearing accuracy. It mainly relies on grease to have a lubricating function to maintain a quiet running sound. After waiting for the interference to the grease, the DC fan slowly appeared abnormal noise.

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    2. Some manufacturers use expired or second-hand ball bearings. As time goes by, the life of second-hand balls is on the edge. After a period of operation, it is normal for the noise to slowly come out.

 

    3. The process of production of DC fans, such as whether the oil-containing fan is designed to be suspended, whether the fan blades and shaft cores are cleaned during assembly, whether the ball bearings are deformed, whether there is sweat contacting the balls to cause rust, etc. Causes noise from the DC fan.


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