What is the cause of electrical corrosion of motor bearings? How to deal with electrical corrosion of motor bearings?
Electrical corrosion of motor bearings is primarily caused by shaft voltage, drive induced current, insufficient lubrication and poor grounding, electrostatic discharge (ESD), motor design issues, etc. If not addressed, it can result in severe motor damage, increased downtime, and expensive repairs. Preventive measures such as using insulated bearings, installing shaft grounding devices, optimizing grounding systems, and using drive filters are essential to reduce the risk. Regular inspections, vibration analysis, and proper maintenance further enhance protection.
