AEGIS® Shaft Grounding Ring technology is the only technology that combines both contact and non-contact nanogap technology to reliably protect bearings from electrical discharges that cause pitting, frosting and fluting damage
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Parts / Accessories
The Press Fit design can be installed as an internal and external installation and is best suited for OEM’s and motor repair shops. For an external mount, the ring is press fit into end bracket which is bored to a specific diameter. For an internal mount, the ring is installed on the bearing cap.
The AEGIS® Conductive MicroFiber™ Shaft Grounding Ring from Electro Static Technology improves the reliability of HVAC/R systems by dramatically extending motor life. By protecting bearings from electrical damage for the life of the motor, the AEGIS® SGR prevents bearing noise and costly motor repairs and downtime. It is ideal for OEM motor and fan manufacturers, repair shops, HVAC service contractors, and in-house maintenance departments and can be easily installed as part of a preventive maintenance program. Detailed technical information is available at www.est-aegis.com.
When AC motors, commonly used in HVAC/R systems to drive fans, air pumps, chillwater pumps, compressors, and other air-handling equipment, are employed with variable frequency drives (VFDs), currents are induced on the motor shafts. Without a grounding device, these currents typically discharge through the motor bearings, causing frosting, pitting, fusion craters, and fluting. This damage can lead first to noise that travels throughout a building's ductwork, then to motor failure, and finally to failure of the entire HVAC/R system. By safely channeling harmful shaft current away from the motor bearings to ground, the SGR prevents electrical bearing damage, and the noise and motor failures it causes.