Unfortunately, there is no easy way to know or even measure if your electric motor system is generating eddy currents that can damage your bearings. It depends upon many factors such as motor condition, motor load, RPM, grounding conditions, etc. Some electric motor systems can operate for years without a problem and then a change is made to how the system operates or how other systems operate in the plant and the bearings begin to be eroded. The Aaki motor shaft grounding module offers one more level of protection against these costly premature motor failures.