BEARING PROTECTION FACTS:

Bearing protection for motors and attached equipment: Only AEGIS^®SGR will protect both motor bearings and the bearings in attached equipment. VFD induced currents on the shaft can discharge through motor bearings or coupled equipment like gear boxes, pumps. fan bearings, pillow blocks, encoders, brake motors, etc. AEGIS^®SGR addresses the root of the problem and channels harmful currents to ground.
 

AEGIS^® SGR is effective in grease, oil, dirt or dust: Lab and field tested. The conductive micro fibers "sweep" away contaminants from the shaft surface and maintain a conductive path even when oil, grease, dirt or dust get on the shaft. The AEGIS^®SGR Bearing Protection Ring is the only technology which works in contaminated environments.

EDM Currents Damage Bearings

►High Frequency Circulating Currents in Large AC and DC Motors

In addition to potential bearing failures in motors from VFD induced EDM currents, AC and DC motors above 100hp (75 kW) may also experience bearing failures caused by high frequency circulating currents. VFD induced high frequency circulating currents are in the kilohertz or even megahertz range and circulate through the motors bearings because of magnetic flux imbalances in the stator. This type of VFD induced current becomes the more dominant destructive current in higher hp/kW motors.

High Frequency Currents Damage Bearings

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