Aegis for VFD AC Motors

AEGIS® Bearing Protection for VFD AC Motors

We offer AEGIS® shaft grounding brushes which provide effective electrical protection of bearings in variable speed AC motors

The new AEGIS® SGR Conductive MicroFiber™ shaft grounding brush prevents electrical damage to motor bearings by safely channelling harmful shaft currents to ground. Using proprietary Electron Transport Technology™, the conductive microfibers inside the AEGIS® SGR provide the path of least resistance for damaging shaft currents, preventing electrical damage to motor bearings and dramatically extending motor life.

Not only is the AEGIS® SGR the world’s most effective grounding brush, it offers the longest lasting protection available.

Benefits of the AEGIS® SGR grounding brush:

  • Maintenance-free
  • Unaffected by dirt, grease or other contaminants
  • Lasts for life of motor
  • Easily installed in minutes – even in the field
  • Mounts on either end of motor shaft
  • Simple screw-on mounting brackets
  • No machining required
  • We offer three options for shaft bearing protection


AEGIS® SGR: for small to medium sized motors; up to 10 amps; shaft diameters exceeding 152mm; available in solid and split designs.

  • Aegis
  • Morganite
  • National