The centrifugal fan requires full sealing and no air leakage. Therefore, an exhaust pipe is placed above the bearing. There is a gap between the casing and the bearing. Even if the bearing sleeve is sealed, air will leak. Therefore, a hole is made on the bearing sleeve to go out of the exhaust pi
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To see this working, head to your live site.
In the Motexo online store in China, centrifugal fan are available at a low price.
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