Aegis System

Bearing Protection Service
We offer the following services to help prevent electrical bearing damage:

  • Bearing Cutting and Inspection
  • Shaft Voltage Testing 
  • External AEGIS Installation
  • Internal AEGIS Installation

Your Bearings Can Fail from VFD-Induced Shaft Currents
VFDs allow large energy savings and precise control.  But they also generate electric voltages on motor shafts.  These shaft voltages can discharge through the bearings, causing pitting, fluting, and eventual bearing failure.

Above: Shaft voltage on a motor before (L) and after (R) AEGIS Installation.

Protect Your Bearings with AEGIS 
AEGIS® Shaft Grounding Rings are the leading bearing protection technology.  They protect bearings by giving shaft voltages a "path of least resistance" to ground, so the shaft discharges through the ring, not the bearing.  Unlike other shaft grounding products, AEGIS® rings are long-lived and maintenance-free, and can be installed inside or outside of the motor.

Download or Request a Free Copy of the AEGIS Bearing Protection Handbook

Company Information


Phone: 615-255-7331


Tennessee Electric Motor Co. is a charter member in Middle Tennessee. BBB Accredited Business since 10/01/1961

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Mission Statement

"To exceed expectations in every area of customer satisfaction with prompt, courteous service and the highest quality product." In short, "to give the highest value."