"The AEGIS
SGR Conductive MicroFiber Shaft Grounding Ring is ideal for predictive and
preventive maintenance programs on VFD-controlled AC motors and large DC
motors," said a company spokesperson. "By protecting bearings from electrical
damage, the SGR dramatically extends motor life, preventing bearing noise,
downtime and costly motor repairs/replacements.
"Preventing shaft current damage (in many cases for the life of the motor), the AEGIS SGR simplifies predictive/preventive maintenance programs for motor repair shops, maintenance contractors, HVAC service contractors and in-house maintenance departments. Unlike conventional shaft grounding brushes, the SGR's conductive microfibers work with virtually no friction or wear, are unaffected by dirt, grease or other contaminants and last for the life of the motor, regardless of RPM. A handy mounting kit simplifies installation of the SGR on any NEMA or IEC motor and provides clearance for motors with shaft shoulders, slingers, bearing caps or end-bell protrusions. Secured with three mounting screws and standoff posts, the entire assembly covers less than 1/2-inch of the motor shaft.
"When used to control the speed of an AC motor, a variable frequency drive (VFD) induces currents on the motor shaft which discharge through bearings, causing fusion craters on bearing race walls. Over time, this can lead to noise, vibration, bearing failure and catastrophic motor failure. The AEGIS SGR prevents bearing damage by channeling shaft currents to ground. Conductive microfibers inside the SGR provide the path of least resistance, allowing these shaft currents to discharge safely to the motor frame."
For more information contact:
Adam Willwerth
Sales and Marketing Manager
Electro Static Technology
31 Winterbrook Road
Mechanic Falls, ME 04256
207-998-5140
Fax: 207-998-5143