Ultrasound spectrum of a Feed Water Pump ODE bearing revealed looseness at run speed with harmonics, confirmed by vibration analysis.
The following is an ultrasound spectrum of a Feed Water Pump ODE bearing in the Steam Plant section of a Pulp & Paper Mill.
The bearing was reported as running very hot prior to the ultrasound readings.
The ultrasound spectrum showed looseness at run speed with harmonics.
Follow-up measurements taken by the plants vibration analyst confirmed structural looseness on this Pump ODE bearing.