Causes of Vibration in Centrifugal Fans2.0

Causes of Vibration in Centrifugal Fans

There are many causes of vibration in rotating machinery. Let’s take a look at the causes of vibration in centrifugal fans. 2. Bearings Since we are well aware of bearing maintenance, if we fail to follow proper bearing maintenance practices, we may find that bearing performance deteriorates. Every bearing has a specific service life. Therefore, if we fail to monitor the required bearing inspection parameters, the bearings may be damaged due to continuous operation during unscheduled maintenance. Once a bearing begins to fail, it may fail completely within a short period. When a bearing fails, for example, its rotating elements may shift out of the bearing cage, or its inner ring may be damaged. When the inner ring or rolling elements are damaged and the centrifugal fan continues to operate with a damaged bearing, this will cause the diameter at the bearing flange to decrease and may also create a notch at the flange where the bearing is secured. Once the bearing diameter decreases, there will be increased clearance between the shaft and the bearing, which can cause fasteners to loosen, thereby increasing the vibration amplitude we discussed earlier.