Before scrolling past what may appear to be another boring article about fluting, VFD’s, grounding brushes and ceramic bearings, I urge you to read on and join in the discussion.
Variable frequency drives (VFDs) have become a preferred method of process control for electric motor driven equipment ranging from vertical water pumps to centrifugal air fans. The following is a basic discussion of risks of using a VFD with direct driven centrifugal fans and methods of mitigating those risks to maintain equipment reliability.
Within the vibration community, it is commonly accepted to describe a spalling process in a bearing in four stages; from the first microscopic sign to a severely damaged bearing...
We all know what a great job vibration analyst’s perform. They are all that stands between a manageable plant and the chaos and mayhem that can result from machines failing unexpectedly...
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