Electrical Bearing Failures in VFD Motors: The Hidden Reliability Killer
Introduction The adoption of Variable Frequency Drives (VFDs) has transformed industrial operations—improving efficiency, control, and flexibility. However, it has also introduced a new class of failure mechanisms, often misunderstood and misdiagnosed. One of the most critical among them is: Electrical erosion of motor bearings The bearings fail. Not randomly. Not mysteriously.But silently……











