--- title: What is Shaft Grounding? | AEGIS® Blog (22) description: News and articles about AEGIS® Shaft Grounding Rings and other elements of electric motor reliability. (22) --- [![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/) - 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It saves money!](https://blog.est-aegis.com/why-protect-mv-ac-motors-and-large-lv-motors-from-bearing-currents-it-saves-money?hsLang=en-us) Using variable frequency drives (VFDs) or inverters to control the speed of large electric motors... [Read More](https://blog.est-aegis.com/why-protect-mv-ac-motors-and-large-lv-motors-from-bearing-currents-it-saves-money?hsLang=en-us) [![Eaton Downtime Cost Calculator](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Capture-300x166.jpg?width=365&name=Capture-300x166.jpg)](https://blog.est-aegis.com/how-much-does-downtime-cost-find-out-with-eatons-downtime-cost-calculator?hsLang=en-us) ## [How Much Does Downtime Cost? Find Out with Eaton's Downtime Cost Calculator.](https://blog.est-aegis.com/how-much-does-downtime-cost-find-out-with-eatons-downtime-cost-calculator?hsLang=en-us) Eaton Electrical published an article today; entitled [*Downtime can be disastrous*](https://www.technologydecisions.com.au/content/data-centres/article/downtime-can-be-disastrous-1114931887). While the article... [Read More](https://blog.est-aegis.com/how-much-does-downtime-cost-find-out-with-eatons-downtime-cost-calculator?hsLang=en-us) ## [Vibration Professionals of Wisconsin Annual Symposium](https://blog.est-aegis.com/vibration-professionals-of-wisconsin-annual-symposium?hsLang=en-us) The Wisconsin Chapter of the [Vibration Institute](https://www.vi-institute.org/) has a new name: The Vibration Professionals of... [Read More](https://blog.est-aegis.com/vibration-professionals-of-wisconsin-annual-symposium?hsLang=en-us) [![AEGIS Shaft Grounding Ring](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/with-2.jpg?width=365&name=with-2.jpg)](https://blog.est-aegis.com/five-reasons-for-aegis-inside?hsLang=en-us) ## [Five Reasons You Should Use Motors with AEGIS Shaft Grounding Factory-Installed Inside](https://blog.est-aegis.com/five-reasons-for-aegis-inside?hsLang=en-us) **1. Motors run on variable frequency drives (VFDs) need protection against bearing current ** [Read More](https://blog.est-aegis.com/five-reasons-for-aegis-inside?hsLang=en-us) [![Motor Drives Business Revenue Tracking](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Motor-and-drives-business-1-e1521129033486.png?width=365&name=Motor-and-drives-business-1-e1521129033486.png)](https://blog.est-aegis.com/vfd-motor-market-analysis?hsLang=en-us) ## [VFD Motor Market Analysis](https://blog.est-aegis.com/vfd-motor-market-analysis?hsLang=en-us) In GMR Analytics' VFD Motor Market Analysis report, ***Global Variable Frequency Drives Analysis***,... [Read More](https://blog.est-aegis.com/vfd-motor-market-analysis?hsLang=en-us) [![ABB shaft grounding motors](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/ABB-Shaft-Grounding-Motors-with-AEGIS-Rings-Installed-e1520608458101.png?width=365&name=ABB-Shaft-Grounding-Motors-with-AEGIS-Rings-Installed-e1520608458101.png)](https://blog.est-aegis.com/baldor-now-abb-shaft-grounding-motors-aegis-rings-installed-still-need-vfds?hsLang=en-us) ## [Baldor is now ABB - and their Shaft Grounding Motors with AEGIS Rings Installed are still what you need for VFDs](https://blog.est-aegis.com/baldor-now-abb-shaft-grounding-motors-aegis-rings-installed-still-need-vfds?hsLang=en-us) [Baldor Electric Company](https://www.baldor.com/), a member of the ABB group for more than seven years, will be known as ABB,... [Read More](https://blog.est-aegis.com/baldor-now-abb-shaft-grounding-motors-aegis-rings-installed-still-need-vfds?hsLang=en-us) [![ EDM break-down in a 6312 DGBB. 6.5 V 50 ns](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/EDM-breakdown.jpg?width=365&name=EDM-breakdown.jpg)](https://blog.est-aegis.com/one-way-measure-classify-bearing-currents?hsLang=en-us) ## [There is more than one way to measure and classify bearing currents](https://blog.est-aegis.com/one-way-measure-classify-bearing-currents?hsLang=en-us) In the article below we are re-publishing an article written by Gunnar Englund who invented the... [Read More](https://blog.est-aegis.com/one-way-measure-classify-bearing-currents?hsLang=en-us) [![ WEG Electric W22 Magnet Drive Motor with AEGIS installed FRAMES 364T and above](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/WEG-W22-PM-with-AEGIS-300x240.png?width=365&name=WEG-W22-PM-with-AEGIS-300x240.png)](https://blog.est-aegis.com/weg-electric-innovation-w22-magnet-drive-system?hsLang=en-us) ## [WEG Electric Innovation - the W22 Magnet Drive System](https://blog.est-aegis.com/weg-electric-innovation-w22-magnet-drive-system?hsLang=en-us) WEG Electrics's new W22 Magnet Super Premium motors meet the IE4 efficiency levels according to IEC... 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