Electrical Materials

AEGIS® shaft grounding ring

The AEGIS® bearing protection, grounding technology consists of a Conductive MicroFiber™ shaft grounding ring in an aluminium housing.

It is easy to install and maintenance free. The system is used for diverting damaging shaft currents to earth rather than travelling through the bearings. This protects the bearings from fluting and pitting and eventual bearing failure.

The use of variable-speed drives with AC motors induces electrical currents on the motor shaft. Once they exceed the resistance of the bearing lubricant, these currents discharge to ground (typically the motor housing), causing fusion craters in the bearings. Over time, these craters increase in size and number, resulting in frosting, pitting, fluting, and eventually bearing failure. This type of premature bearing failure can cost thousands of dollars in increased maintenance and lost production - we can offer a solution.

The technology is used in many motor and generator applications such as:

  • VFD AC motors
  • DC motors
  • Wind generators
  • Power generators
  • Test equipment

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

  • 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

For information on how you can use the AEGIS® SGR™ grounding brush in your application, contact us today.

See our full trademarks list and contact details for our Intellectual Property team here.