Sizes for Most NEMA Motors Available in standard sizes for:

• NEMA motors: 1 to 300 HP 

• Shaft diameters: 0.775" to 3.395" (20 mm to 85mm) 

• Larger sizes for up to 6" shafts 

• No RPM limitations

PROBLEM: 
Induced Shaft Currents Damage Bearings 
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.

SOLUTION: 
AEGIS™SGR*: The World’s Most Effective Shaft Grounding Brush 
The new AEGIS™SGR Conductive MicroFiber™shaft grounding brush prevents electrical damage to motor bearings by safely channeling 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.

The Longest Lasting Protection Available 
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 

Fast, Easy Installation

• Easily installed in minutes— even in the field 

• Mounts on either end of motor shaft 

• Simple screw-on mounting brackets 

• No machining required