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AEGIS Bearing Protection Ring

AEGIS® PRO Series High Current Bearing Protection Ring

The AEGIS® PRO Series design provides reliable shaft grounding for medium voltage applications, generators, and turbines to divert harmful shaft voltages to ground and extend bearing life. Install the AEGIS® PRO on the DE and insulate the bearing on the opposite end (NDE) for best results. Large motors and generators often have much higher induced shaft voltages and bearing currents. The six circumferential rows of conductive microfber provide the extra protection for these high current applications.

Motor with AEGIS Bearing Protection Ring

The AEGIS Shaft Grounding Ring prevents electrical bearing fluting damage by safely diverting harmful shaft voltages and bearing currents to ground. Using proprietary Electron Transport Technology, the conductive microfibers inside the AEGIS Ring provide the most reliable current diversion technology for shaft grounding with a "path of least resistance" to dramatically extend motor life.

AEGIS® Products :


  • Shaft diameters: 0.311" to 6.020" [7.9mm to 152.9mm]    
  • Ships with mounting brackets, screws and washers, quick and easy installation to most surfaces.


For shaft diameter 2.5" to 30" [63.5mm to 762mm] Solid and Split Ring Design 6 rows of conductive microfiber™  Custom mounting brackets and Press Fit mounting available upon request


6 rows of conductive microfiber™ High current capable Long term reliable performance Up-tower retrofit capability available in Split and Solid designs.

AEGIS Shaft Voltage Tester

  • Detects presence and size of shaft voltage on running motors.
  • Incorporate testing into preventive and predictive maintenance programs.
  • Create test reports for customers or management.

AEGIS® HFGS High-Frequency Ground Strap

Ensures reliable conductive path from motor frame to ground Standard 12" and 24" lengths Pre-punched to fit bolts on standard motor foot size.

AEGIS® CS015 Colloidal Silver Shaft Coating

Recommended for all installations  Enhances the conductivity of the motor shaft surfaces 20-25 applications based on a 3" shaft Item is Hazardous Material Safety Data Sheet.

AEGIS® EP2400 Conductive Epoxy

Used to install the AEGIS® ring without drilling and tapping into motor bracket. Great for field retrofits.

  • Worldwide delivery

    For all oders over $99

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  • 24/7 Support

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