Insulation on one end (usually NDE) and AEGIS™ SGR
on opposite end
- This method offers the most reliable protection
- Motor frame must be well
grounded
- Non-Drive End: Bearing journal
should be insulated or Insulated/
Ceramic Bearing installed to
disrupt circulating currents
- Install AEGIS™ SGR Bearing
Protection Ring on opposite end
of insulation and Insulated/Ceramic Bearing (usually DE)
- Protects bearings in attached equipment (gear box, pillow block, encoder etc.)
* Recommend Colloidal Silver Shaft Coating PN CS015
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If insulation is not possible, the next best protection is to install AEGIS™ SGR on both ends of the motor
- Motor frame must be well grounded
- Install AEGIS™ SGR Bearing Protection
Ring on drive and non-drive end to provide
path of least resistance for circulating
currents and to channel VFD currents to
ground.
- Protects bearings in attached equipment
- NOT SUITABLE FOR CYLINDRICAL ROLLER BEARING
* Coat shaft with Colloidal Silver Shaft Coating
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Critical Applications: Insulate both ends and add AEGIS™ SGR Bearing Protection Ring
on both ends
- Motor frame must be well grounded
- Drive and Non-Drive end: Bearing
journals should be insulated or
Insulated/Ceramic Bearing installed
to disrupt circulating currents
- Install AEGIS™ SGRBearing Protection
Ring on drive and non-drive end to
provide path of least resistance for shaft voltages and to channel VFD induced currents to ground.
- AEGIS™ SGR required to protect bearings in attached equipment (gear box, pillow block, encoder, etc.)
* Coat shaft with Colloidal Silver Shaft Coating |
Large Motors & Generators over 1000HP (750kW)
AEGIS™ iPRO™ Bearing Protection Ring
Rated for 120 amps/3000 Volts peak
 Large motors and generators often have much higher induced shaft voltages and bearing currents which require a high current capable Bearing Protection Ring. High frequency circulating currents induced by variable frequency drives (VFD) will cause bearing fluting and catastrophic failure in these motors. Generators experience current surges which can cause electrical arcing in bearings and equipment.
- One end of the motor should be insulated. Install AEGIS™ iPRO™ on opposite end of insulation to protect the non-insulated bearing.
- Install AEGIS™ iPRO™ on both ends of motor or generator if bearing cannot be insulated.
* Coat shaft with Colloidal Silver Shaft Coating |
