Using a vibration analyzer, and some skill, personnel can pinpoint the causes of rough machinery condition. Such problems as rotor imbalance and misalignment make up a great proportion of mechanical deficiencies and can be identified and rectified. Other problems such as bearing wear are not only detected, but also qualified as to the severity of wear. In many instances, a historical case study can prognose the remaining life of bearings so that scheduled repairs can be prioritized.Techniques for analyzing machinery are well documented and are taught by instrument suppliers and formal education facilities.