||AEGIS® Bearing Protection Ring
||Spring Loaded Carbon Block Brush
||Virtually no friction or wear, lasts for service life of equipment (no friction to shaft).
||Wears out due to friction
|Shaft Grounding Effectiveness
||Continuous discharge - no degradation over time.
||Decreases after only a few weeks due to coating buildup on shaft. Must be cleaned to restore contact.
||Surface rate and RPM do not effect performance or wear, tested at 20,000 RPM and high surface rate applications of 180 f/s.
||Higher surface rate/RPM results in faster wear and replacements, RPM limitation, less effective at higher RPM.
||No measurable dust collected or wear observed (less than 0.001") in 10,000 hours.
||Carbon block wear on shaft creates dust particles based on surface rate of shaft.
||Lasts for service life of equipment - nothing to wear out, estimated life is greater than 200,000 hours.
||Depends on material but may last for as little as 3-5 months.
||Never needs to be replaced.
||Replacement needed frequently (requires equipment shutdown).
|Motor/equipment shutdown lost production
||Periodic for maintenance or replacement needed.
|Periodic Shaft maintenance
||Periodic maintenance needed to clean/remove oxidation/coatings/contamination shaft.
||Periodic maintenance needed to clean/remove coatings/contamination brush contact surface.
|Works if oil/grease gets on shaft
|High frequency VFD currents
||Micro fiber is optimized for high frequency current discharges produced by high speed VFD dv/dt pulse width modulation (PWM) switching.
||Not as effective for high frequencies.
|Complex to install
||Simple screw-on brackets - mounts direct to end bell. Self centers for easy alignment, slim design minimizes shaft length requirement.
||Complex bracket installation and alignment, may require machining for bracket installation, may require over 1" of usable shaft length.
||Bearings on motors up to 100HP guaranteed not to fail from bearing fluting caused by electrical bearing discharges.
|Load on shaft
||No load on shaft - micro fibers "lightly" touch shaft surface
||Spring load on shaft, causes drag and decreases motor efficiency
|Effective conductive surface contact
||Three to four times greater, hundreds of thousands (even millions) of micro fibers surround shaft
||Only 15-30% contact on slipping surface.