Shaft grounding rings are used to protect electric motor bearings from damaging shaft currents, especially in motors powered by variable frequency drives. VFDs can create high-frequency common mode voltage that seeks a path to ground through the motor bearings. Over time, this can cause electrical discharge machining, bearing pitting, fluting, increased vibration, and unplanned motor downtime.
VFDs.com carries AEGIS shaft grounding rings designed for bearing protection in demanding industrial applications. Use this category to find the correct shaft grounding ring size for your motor and reduce the risk of premature bearing failure caused by VFD-induced shaft voltage.
