--- title: What is Shaft Grounding? | AEGIS® Blog | Motors on VFD description: Motors on VFD | 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 about Motors on VFD:     [Home](https://www.est-aegis.com/) » Blog #   Blog [![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) [![chart ](https://blog.est-aegis.com/hs-fs/hubfs/Pitting-Discharge-Event.jpg?width=365&name=Pitting-Discharge-Event.jpg)](https://blog.est-aegis.com/resistance-is-futile?hsLang=en-us) ## [AEGIS Rings' Resistance Isn't Everything](https://blog.est-aegis.com/resistance-is-futile?hsLang=en-us) We recently wrote about how the static resistance of an AEGIS ring (measured with a multimeter) is... [Read More](https://blog.est-aegis.com/resistance-is-futile?hsLang=en-us) [![Hvac systems](https://blog.est-aegis.com/hs-fs/hubfs/AdobeStock_276554572.jpeg?width=365&name=AdobeStock_276554572.jpeg)](https://blog.est-aegis.com/what-is-vfd-in-hvac?hsLang=en-us) ## [What are Variable Frequency Drive Applications in HVAC Systems?](https://blog.est-aegis.com/what-is-vfd-in-hvac?hsLang=en-us) For the past few decades, the use of variable frequency drives (VFDs) in the motors of heating,... [Read More](https://blog.est-aegis.com/what-is-vfd-in-hvac?hsLang=en-us) [![chart ](https://blog.est-aegis.com/hs-fs/hubfs/ohmmeter.jpg?width=365&name=ohmmeter.jpg)](https://blog.est-aegis.com/what-is-the-resistance-of-an-aegis-ring?hsLang=en-us) ## [What is the Resistance of an AEGIS Ring?](https://blog.est-aegis.com/what-is-the-resistance-of-an-aegis-ring?hsLang=en-us) We get a lot of questions about the resistance (ohms) of our AEGIS Shaft Grounding Rings. Fair... [Read More](https://blog.est-aegis.com/what-is-the-resistance-of-an-aegis-ring?hsLang=en-us) [![shaft grounding ring](https://blog.est-aegis.com/hs-fs/hubfs/SGR-Group_NoBG-1536x1152.png.webp?width=365&name=SGR-Group_NoBG-1536x1152.png.webp)](https://blog.est-aegis.com/why-vfd-controlled-motors-need-shaft-grounding?hsLang=en-us) ## [Why VFD-Controlled Motors Need Shaft Grounding](https://blog.est-aegis.com/why-vfd-controlled-motors-need-shaft-grounding?hsLang=en-us) Premature failure can be a real problem in an AC motor equipped with a variable frequency drive... [Read More](https://blog.est-aegis.com/why-vfd-controlled-motors-need-shaft-grounding?hsLang=en-us) [![AEGIS rings being installed on pump motors ](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/blueash-21-300x225.jpg?width=365&name=blueash-21-300x225.jpg)](https://blog.est-aegis.com/pumping-systems-on-vfd-need-bearing-protection?hsLang=en-us) ## [Pumping Systems on VFD Need Bearing Protection](https://blog.est-aegis.com/pumping-systems-on-vfd-need-bearing-protection?hsLang=en-us) In most pump applications, running the pump at full speed is not always necessary. Flow rate has... [Read More](https://blog.est-aegis.com/pumping-systems-on-vfd-need-bearing-protection?hsLang=en-us) [![hazardous location](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/sawdust-e1596820238486-227x300.jpg?width=365&name=sawdust-e1596820238486-227x300.jpg)](https://blog.est-aegis.com/electrical-bearing-protection-qa-part-32/?hsLang=en-us) ## [Electrical Bearing Protection Q&A Part 32](https://blog.est-aegis.com/electrical-bearing-protection-qa-part-32/?hsLang=en-us) Part 32 in a series of questions and answers from our Q&A [webinars](https://www.est-aegis.com/training). [Read More](https://blog.est-aegis.com/electrical-bearing-protection-qa-part-32/?hsLang=en-us) [![three types of bearing current ](https://blog.est-aegis.com/hs-fs/hubfs/best-practice.png?width=365&name=best-practice.png)](https://blog.est-aegis.com/three-types-of-bearing-current-mitigation?hsLang=en-us) ## [Three Types of Bearing Current: Mitigation](https://blog.est-aegis.com/three-types-of-bearing-current-mitigation?hsLang=en-us) [Read More](https://blog.est-aegis.com/three-types-of-bearing-current-mitigation?hsLang=en-us) First Prev [1](https://blog.est-aegis.com?hsLang=en-us) [2](https://blog.est-aegis.com/tag/motors/page/2?hsLang=en-us) [3](https://blog.est-aegis.com/tag/motors/page/3?hsLang=en-us) [4](https://blog.est-aegis.com/tag/motors/page/4?hsLang=en-us) [5](https://blog.est-aegis.com/tag/motors/page/5?hsLang=en-us) [Next](https://blog.est-aegis.com/tag/motors/page/2?hsLang=en-us) [Last](https://blog.est-aegis.com/tag/motors/page/13?hsLang=en-us) ### Subscribe To Our Blog [![Electro Static Energy](https://blog.est-aegis.com/hubfs/raw_assets/public/public/images/logo-est-alt.svg) ![AEGIS](https://blog.est-aegis.com/hubfs/raw_assets/public/public/images/logo-aegis-alt.svg)](https://www.est-aegis.com) 31 Winterbrook Road Mechanic Falls, ME 04256 Phone: [+1 207-998-5140](tel:+1%20207-998-5140) Fax: [+1 207-998-5143](fax:+1%20207-998-5143) Contact Us: [Send Message](https://www.est-aegis.com/contact/) ## Subscribe to Our Emails - [Products](https://www.est-aegis.com/products/) - [AEGIS® SGR](https://www.est-aegis.com/product/sgr/) - [AEGIS® uKIT](https://www.est-aegis.com/product/sgr-ukit/) - [AEGIS® PRO Series](https://www.est-aegis.com/product/pro-series/) - [Testing & Accessories](https://www.est-aegis.com/product/mounting-accessories/) - [Custom Static Solutions](https://www.est-aegis.com/product/custom-static-solutions/) - [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](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/) - [Resources](https://www.est-aegis.com/resources/) - [Request a Training](https://www.est-aegis.com/contact/request-a-training/) - [AEGIS® Bearing Protection Handbook](https://www.est-aegis.com/resources/handbook/) - [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/) - [Product Sheets](https://www.est-aegis.com/resources/product-sheets/) - - - Copyright 2022 Electro Static Technology. 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