Practical Solutions to Machinery and Maintenance Vibration Problems
Chapter 8, Vibration in Bearings
Section 8, Further Considerations for Bearing Defect Vibration Amplitude and Frequency Symptoms
As vibration amplitudes due to bearing problems are often relatively
small when compared to other vibration sources, "threshold-type"
alarms that measure "overall" vibration do not usually give
adequate warning for impending bearing failure. Instead, "power
band-type" alarms, which measure "root mean square" (rms)
values, are most often more appropriate as they give a better idea of
"vibration defect energy."
This textbook contains only part of the information in our Practical Solutions seminar.