Shaft Grounding RingTM
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. Morgan AM&T offer a 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.
Not only is the AEGIS™ SGR the world’s most effective grounding brush, it offers the longest lasting protection available.
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Maintenance-free
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Unaffected by dirt, grease, or other contaminants
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Lasts for life of motor
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Easily installed in minutes— even in the field
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Mounts on either end of motor shaft
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Simple screw-on mounting brackets
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No machining required
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Motor
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HP Shaft
Diameter
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Nema Frame
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| 1-2 |
0.875" |
143T, 148T, 182, 184 |
| 2-5 |
1.125" |
182T, 184T, 213, 215 |
| 3-10 |
1.375" |
213T, 215T, 254U, 256U |
| 5-30 |
1.625" |
254T, 256T, 284TS, 286TS, 284U, 286U |
| 10-75 |
1.875" |
284T, 286T, 324TS, 326TS, 364TS, 365TS,
324U, 326U |
| 20-100 |
2.125" |
324T, 326T, 404TS, 405TS, 364U, 365U |
| 30-300 |
2.375" |
364T, 365T, 444TS, 445TS, 447TS, 449TS,
404U, 405U |
| 50-100 |
2.875" |
404T, 405T, 444U, 445U |
| 75-300 |
3.375" |
444T, 445T, 447T, 449T |
Morgan AM&T offer 3 options for shaft bearing protection
Aegis SGRTM for small to medium sized motors
For up to 10 amps- shaft diameters exceeding 152 mm- available in solid and split designs
AEGIS WTGTM for wind turbine generators
High current capability 120- amp continuous current and 3000 volt peak- retrofitting with split ring option
AEGIS IPROTM for high voltage bearing protection for large motors and generators
High current capability 12- amp continuous current and 3000 volt peak-Aegis Ipro shaft current monitoring capability- up 762mm shaft size
Aegis is Manufactured by Electro Static Technology - An ITW Company
Aegis SGRTM, Conductive MicrofibreTM and Shaft GroundingTM are trademarks of Electro Static Technology-ITW
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