Maintenance is essential in all kinds of machinery. In order to prevent long-term breakdown or catastrophic failure, faults should be detected at their incipient stage. Bearing faults are the most frequent cause of failures of machinery. Most of the faults occurring in bearings will introduce impact-like vibration signals when bearings are rotating. Such impacts behave like damped oscillations and can be detected using accelerometers. This book introduces an automatic, effective but simpler-to-use system for bearing fault diagnosis so that the industry can use its equipment without the need of hiring experts.