--- title: What is Shaft Grounding? | AEGIS® Blog | AEGIS description: News and articles about AEGIS® Shaft Grounding Rings and other elements of electric motor reliability. --- [![Electro Static Technology](https://blog.est-aegis.com/hubfs/raw_assets/public/public/images/electro-static-technology.svg "Electro Static Technology")](https://www.est-aegis.com/) [![Aegis](https://blog.est-aegis.com/hubfs/raw_assets/public/public/images/Aegis.svg "Aegis")](https://www.est-aegis.com/) - [+1 866-738-1857](tel:+1%20866-738-1857) - [Products](https://www.est-aegis.com/products/) - [AEGIS® SGR – for motors under 500 HP/375 kW](https://www.est-aegis.com/product/sgr/) - [AEGIS® uKIT – for common NEMA/IEC frame size](https://www.est-aegis.com/product/sgr-ukit/) - [AEGIS® RPPR – for reactor recirculating pumps](https://www.est-aegis.com/rppr-resources/) - [AEGIS® EV and EVO Rings - for electric vehicles](https://www.est-aegis.com/product/ev-evo-rings/) - [AEGIS® PRO Series – for motors over 300 HP/225 kW](https://www.est-aegis.com/product/pro-series/) - [Shaft Voltage Testing and Accessories](https://www.est-aegis.com/product/mounting-accessories/) - [Online Product Catalog](https://catalog.est-aegis.com/) - [AEGIS® 2-Year Extended Warranty](https://www.est-aegis.com/product/extended-warranty/) - [Applications](https://www.est-aegis.com/applications/) - [Electric Vehicle Solutions](https://www.est-aegis.com/applications/electric-vehicle-solutions/) - [Food & Beverage](https://www.est-aegis.com/applications/food-beverage/) - [HVAC](https://www.est-aegis.com/applications/hvac/) - [Industrial & Chemical](https://www.est-aegis.com/applications/industrial-chemical/) - [Other Industries](https://www.est-aegis.com/applications/other-industries/) - [Power Generation & Renewable Energy](https://www.est-aegis.com/applications/power-generation-renewable-energy/) - [Transportation](https://www.est-aegis.com/applications/transportation/) - [Water Treatment](https://www.est-aegis.com/applications/water-treatment/) - [Bearing Protection](https://www.est-aegis.com/bearing-protection/) - [Shaft Voltage & Bearing Currents](https://www.est-aegis.com/bearing-protection/shaft-voltage-and-bearing-currents/) - [Fluting & Bearing Inspection](https://www.est-aegis.com/bearing-protection/fluting-and-bearing-inspection/) - [Best Practices & Installation](https://www.est-aegis.com/bearing-protection/best-practices-and-installation/) - [Resources](https://www.est-aegis.com/resources/) - [AEGIS® Bearing Protection Handbook](https://www.est-aegis.com/resources/handbook/) - [IEEE-841, Hazardous Locations, & AEGIS®](https://info.est-aegis.com/technical-codes-and-ieee-841-standards) - [Recorded Webinars Library](https://www.est-aegis.com/resources/recorded-webinars/) - [Installation Instructions](https://www.est-aegis.com/resources/installation-instructions/) - [Videos](https://www.est-aegis.com/resources/videos/) - [Technical Papers](https://www.est-aegis.com/resources/technical-papers/) - [Case Studies](https://www.est-aegis.com/resources/case-studies/) - [Specifying AEGIS®](https://www.est-aegis.com/resources/specifying-aegis/) - [Request Training](https://www.est-aegis.com/resources/training/) - [Product Sheets](https://www.est-aegis.com/resources/product-sheets/) - [About](https://www.est-aegis.com/about/) - [News](https://blog.est-aegis.com/) - [Tradeshows](https://www.est-aegis.com/about/tradeshows/) - [Blog](https://blog.est-aegis.com/) - [Where to Buy](https://www.est-aegis.com/where-to-buy/) - [Distributors](https://www.est-aegis.com/where-to-buy/distributors?type=Distributor) - [Trained Installers](https://www.est-aegis.com/where-to-buy/installers?type=Installer) - [Explosion Proof Installers](https://www.est-aegis.com/where-to-buy/installers?type=Explosion%20Proof%20Installer) - [Motors & Seals with AEGIS® Installed](https://www.est-aegis.com/where-to-buy/oems-with-aegis/) [Contact Us](https://www.est-aegis.com/contact/) - [+1 866-738-1857](tel:+1%20866-738-1857) ## Posts by AEGIS:     [Home](https://www.est-aegis.com/) » Blog # Blog [![Municipal Pool Pump](https://blog.est-aegis.com/hs-fs/hubfs/20161202BA-39.jpg?width=365&name=20161202BA-39.jpg)](https://blog.est-aegis.com/swimming-pool-pumps-vfd-bearing-protection-aegis-ring?hsLang=en-us) ## [Swimming Pool Pumps and AEGIS Shaft Grounding](https://blog.est-aegis.com/swimming-pool-pumps-vfd-bearing-protection-aegis-ring?hsLang=en-us) Around this time every year, people around the Northern Hemisphere remember what a wonderful... [Read More](https://blog.est-aegis.com/swimming-pool-pumps-vfd-bearing-protection-aegis-ring?hsLang=en-us) [![motor bearing ](https://blog.est-aegis.com/hs-fs/hubfs/bluechip-xri-hazardous-duty.png?width=365&name=bluechip-xri-hazardous-duty.png)](https://blog.est-aegis.com/extend-electric-motor-life?hsLang=en-us) ## [Simple Steps to Avoid Motor Bearing Damage and Unplanned Downtime](https://blog.est-aegis.com/extend-electric-motor-life?hsLang=en-us) ## Motor Reliability is Critical to Avoiding Unplanned Downtime When critical motors fail... [Read More](https://blog.est-aegis.com/extend-electric-motor-life?hsLang=en-us) [![Shaft Grounding Rings for Wind Turbine Generators](https://blog.est-aegis.com/hs-fs/hubfs/20200707_145530.jpg?width=365&name=20200707_145530.jpg)](https://blog.est-aegis.com/shaft-grounding-rings-for-wind-turbine-generators?hsLang=en-us) ## [Improving Wind Generator Reliability with Shaft Grounding](https://blog.est-aegis.com/shaft-grounding-rings-for-wind-turbine-generators?hsLang=en-us) Electric generators are essentially motors in reverse: rather than drawing power from the line and... [Read More](https://blog.est-aegis.com/shaft-grounding-rings-for-wind-turbine-generators?hsLang=en-us) [![aegis shaft grounding and mining](https://blog.est-aegis.com/hs-fs/hubfs/cutter-motor-fluting.png?width=365&name=cutter-motor-fluting.png)](https://blog.est-aegis.com/case-study-mining-reliability-aegis-shaft-grounding?hsLang=en-us) ## [Case Study: Mining Reliability & AEGIS Shaft Grounding](https://blog.est-aegis.com/case-study-mining-reliability-aegis-shaft-grounding?hsLang=en-us) Electric motors are essential to modern mining.  From [conveyors](https://blog.est-aegis.com/conveyor-motors-on-drives-need-bearing-protection?hsLang=en-us) and crushers to electric trucks and... [Read More](https://blog.est-aegis.com/case-study-mining-reliability-aegis-shaft-grounding?hsLang=en-us) [![industrial motor](https://blog.est-aegis.com/hs-fs/hubfs/Industrial_MotorLineBlue_6016x4016.jpg?width=365&name=Industrial_MotorLineBlue_6016x4016.jpg)](https://blog.est-aegis.com/industrial-motor-maintenance-challenges-prevent-unplanned-downtime?hsLang=en-us) ## [Industrial Motor Maintenance Challenges: Addressing Common Causes of Unplanned Downtime](https://blog.est-aegis.com/industrial-motor-maintenance-challenges-prevent-unplanned-downtime?hsLang=en-us) *(Industrial Motor Maintenance Challenges — Series Kickoff)* [Read More](https://blog.est-aegis.com/industrial-motor-maintenance-challenges-prevent-unplanned-downtime?hsLang=en-us) [![Protect Against Circulating Current](https://blog.est-aegis.com/hs-fs/hubfs/circ-current-simple.png?width=365&name=circ-current-simple.png)](https://blog.est-aegis.com/why-cant-you-prevent-circulating-current-damage-with-two-aegis-rings?hsLang=en-us) ## [Why Not Use Two AEGIS Rings to Protect Against Circulating Current?](https://blog.est-aegis.com/why-cant-you-prevent-circulating-current-damage-with-two-aegis-rings?hsLang=en-us) For large motors on drives (over 100 HP/75kW), we recommend an AEGIS® Shaft Grounding Ring at one... [Read More](https://blog.est-aegis.com/why-cant-you-prevent-circulating-current-damage-with-two-aegis-rings?hsLang=en-us) [![A bullet-shaped 19th century electric vehicle](https://blog.est-aegis.com/hs-fs/hubfs/Jamais_contente_public-domain.jpg?width=365&name=Jamais_contente_public-domain.jpg)](https://blog.est-aegis.com/electrified-transportation-bearing-damage?hsLang=en-us) ## [Electrified Transportation & Bearing Damage](https://blog.est-aegis.com/electrified-transportation-bearing-damage?hsLang=en-us) It's hard to believe, but the first electric vehicles were created almost 100 years ago. Electric... [Read More](https://blog.est-aegis.com/electrified-transportation-bearing-damage?hsLang=en-us) [![Packages in a distribution center whooshed along by a conveyor](https://blog.est-aegis.com/hs-fs/hubfs/distribution_center.jpg?width=365&name=distribution_center.jpg)](https://blog.est-aegis.com/distribution-center-automation-electrical-bearing-damage?hsLang=en-us) ## [Distribution Center Automation & Electrical Bearing Damage](https://blog.est-aegis.com/distribution-center-automation-electrical-bearing-damage?hsLang=en-us) Distribution centers are a seldom-seen but hugely important component of the modern economy. These... [Read More](https://blog.est-aegis.com/distribution-center-automation-electrical-bearing-damage?hsLang=en-us) [![WEG W22 Cast Iron Motor, certifiable for Class I Div 1 with AEGIS installed](https://blog.est-aegis.com/hs-fs/hubfs/W22-cast-iron_MKT_WMO_US_IMAGE_W22_NEMA_PREMIUM_254_326_B3RD_1200Wx1200H.jpg?width=365&name=W22-cast-iron_MKT_WMO_US_IMAGE_W22_NEMA_PREMIUM_254_326_B3RD_1200Wx1200H.jpg)](https://blog.est-aegis.com/electrical-bearing-protection-for-hazardous-duty-motors?hsLang=en-us) ## [Electrical Bearing Protection for Motors in Hazardous Locations](https://blog.est-aegis.com/electrical-bearing-protection-for-hazardous-duty-motors?hsLang=en-us) All electric motors controlled by variable frequency drives are at risk of electrical bearing... 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