Condition Monitoring of Self Aligning Ball Bearings at Various Angles and Speeds

Abstract

Computation of the signal of ball bearing vibrations conveys a safe and efficient procedure for evaluating thetear of bearings, to demonstrate the technical situationof bearing and of the complete machinery. The condition monitoring of self aligning ball bearing (1205K type) at different angular misalignments is the main concern of the study. In this study, the finding of reasons causing the destruction of self aligning ball bearing by evaluation of condition of signature spectrums in frequency domain on bearing housing, mounted on the test equipment. The bearing fault simulator system is created for vibration signal observation by inducing fault in the bearing.  The different imperfections taken as defect in ball element, inner race and outer race and vibrations are recorded for five speeds and five different angles. It is clear frequency domain signals that for the same defect size the maximum vibrations are produced by the bearing with ball defect and then by the outer race fault and lastly minimum by the inner race faulty bearing. So, on the basis of the results it becomes easy to recognize and diagnose the category of fault occurred in the bearing during operation before a major failure.