--- title: What is Shaft Grounding? | AEGIS® Blog (21) description: News and articles about AEGIS® Shaft Grounding Rings and other elements of electric motor reliability. (21) --- [![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)     [Home](https://www.est-aegis.com/) » Blog #   Blog [![EASA 2018 Convention](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/2018-EASA-in-Milwaukee-Dec-22-2021-03-23-47-15-PM.jpg?width=365&name=2018-EASA-in-Milwaukee-Dec-22-2021-03-23-47-15-PM.jpg)](https://blog.est-aegis.com/3-things-you-need-to-know-about-ul-recognized-component-mark-is-it-required-for-aegis-rings?hsLang=en-us) ## [3 Things You Need to Know About UL Recognized Component Mark - Is it Required for AEGIS Rings?](https://blog.est-aegis.com/3-things-you-need-to-know-about-ul-recognized-component-mark-is-it-required-for-aegis-rings?hsLang=en-us) The AEGIS® Shaft Grounding Ring does not require a UL® listing or a UL recognized component... [Read More](https://blog.est-aegis.com/3-things-you-need-to-know-about-ul-recognized-component-mark-is-it-required-for-aegis-rings?hsLang=en-us) [![](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/broked-1.jpg?width=365&name=broked-1.jpg)](https://blog.est-aegis.com/ask-for-aegis-shaft-grounding-by-name?hsLang=en-us) ## [All Shaft Grounding Devices Are Not Created Equal: Insist on the Best](https://blog.est-aegis.com/ask-for-aegis-shaft-grounding-by-name?hsLang=en-us) As variable frequency drives (VFDs) have become more common, awareness of the [electrical bearing...](https://www.est-aegis.com/bearing-protection/fluting-and-bearing-inspection/) [Read More](https://blog.est-aegis.com/ask-for-aegis-shaft-grounding-by-name?hsLang=en-us) [![preventing downtime in paper mills](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Large-Paper-Roll.jpg?width=365&name=Large-Paper-Roll.jpg)](https://blog.est-aegis.com/aegis-in-action-preventing-downtime-and-spoilage-in-paper-mills?hsLang=en-us) ## [Preventing Downtime and Spoilage in Paper Mills](https://blog.est-aegis.com/aegis-in-action-preventing-downtime-and-spoilage-in-paper-mills?hsLang=en-us) ### Protect Pulp and Paper Plant Motors from VFD-Caused Bearing Failure and Prevent Downtime [Papermaking](https://www.est-aegis.com/applications/industrial-chemical/) [Read More](https://blog.est-aegis.com/aegis-in-action-preventing-downtime-and-spoilage-in-paper-mills?hsLang=en-us) [![Techno Frontier in Chiba, Japan](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Techno-Frontier-Venu-e1524511660159.jpg?width=365&name=Techno-Frontier-Venu-e1524511660159.jpg)](https://blog.est-aegis.com/aegis-rings-at-techno-frontier-with-toshiba-japan?hsLang=en-us) ## [AEGIS Rings at Techno Frontier with Toshiba in Japan](https://blog.est-aegis.com/aegis-rings-at-techno-frontier-with-toshiba-japan?hsLang=en-us) *TECHNO*-*FRONTIER* 2018 - [AEGIS Rings at Toshiba -](https://www.est-aegis.com/where-to-buy/oems-with-aegis/)Held in Chiba, Japan, and with over 30,000... [Read More](https://blog.est-aegis.com/aegis-rings-at-techno-frontier-with-toshiba-japan?hsLang=en-us) [![Plant Engineering](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/csm_PLE1803_MAG_SOLUTIONS_VFD_Washdowns_MI_1B-slider_13a6c87434.jpg?width=365&name=csm_PLE1803_MAG_SOLUTIONS_VFD_Washdowns_MI_1B-slider_13a6c87434.jpg)](https://blog.est-aegis.com/plant-engineering-writes-about-how-vfd-driven-wash-down-systems-save-energy-and-extend-equipment-life?hsLang=en-us) ## [Plant Engineering writes about how VFD driven washdown systems save energy and extend equipment life](https://blog.est-aegis.com/plant-engineering-writes-about-how-vfd-driven-wash-down-systems-save-energy-and-extend-equipment-life?hsLang=en-us) ***In the article "Full speed in washdown? Not so fast!***" Ron Crutchfield and Gary Jacott of [Motion...](https://www.motionindustries.com/) [Read More](https://blog.est-aegis.com/plant-engineering-writes-about-how-vfd-driven-wash-down-systems-save-energy-and-extend-equipment-life?hsLang=en-us) [![AEGIS Bearing Protection Handbook](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/18-101B-AEGIS-Handbook-Edition-3-240x300-1.jpg?width=365&name=18-101B-AEGIS-Handbook-Edition-3-240x300-1.jpg)](https://blog.est-aegis.com/how-to-bearing-protection-handbook-details-best-practices-for-motor-repairs?hsLang=en-us) ## [How To: Bearing Protection Handbook Details Best Practices For Motor Protection and Repair](https://blog.est-aegis.com/how-to-bearing-protection-handbook-details-best-practices-for-motor-repairs?hsLang=en-us) This 56-page technical handbook describes best practices for protecting motor bearings from... [Read More](https://blog.est-aegis.com/how-to-bearing-protection-handbook-details-best-practices-for-motor-repairs?hsLang=en-us) [![Failed motors stored in a warehouse](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Failed-Motor-Bone-Yard-221x300.jpg?width=365&name=Failed-Motor-Bone-Yard-221x300.jpg)](https://blog.est-aegis.com/is-there-such-a-thing-as-a-throw-away-motor-lets-examine?hsLang=en-us) ## [Is there such a thing as a "throwaway" motor? Let's examine...](https://blog.est-aegis.com/is-there-such-a-thing-as-a-throw-away-motor-lets-examine?hsLang=en-us) When motor failure strikes, decisions must be made. Should the motor be repaired or replaced? Can... [Read More](https://blog.est-aegis.com/is-there-such-a-thing-as-a-throw-away-motor-lets-examine?hsLang=en-us) [![AEGIS Bearing Protection Rings](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Motors-with-AEGIS-Inside-1.jpg?width=365&name=Motors-with-AEGIS-Inside-1.jpg)](https://blog.est-aegis.com/if-you-sell-drives-its-smart-to-recommend-motors-with-shaft-grounding?hsLang=en-us) ## [If You Sell Drives, It's Smart to Recommend Motors with Shaft Grounding](https://blog.est-aegis.com/if-you-sell-drives-its-smart-to-recommend-motors-with-shaft-grounding?hsLang=en-us) Variable frequency drive users look to drive manufacturers and reps not only for quality products... [Read More](https://blog.est-aegis.com/if-you-sell-drives-its-smart-to-recommend-motors-with-shaft-grounding?hsLang=en-us) [![Overview of Fault Diagnostics for MV Motors by the Georgia Institute of Technology](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Slide-43-Overview-of-Fault-Diagnostics-for-MV-Motors-e1523486163380.png?width=365&name=Slide-43-Overview-of-Fault-Diagnostics-for-MV-Motors-e1523486163380.png)](https://blog.est-aegis.com/in-medium-voltage-motors-bearing-related-failures-can-account-for-41-of-faults?hsLang=en-us) ## [In medium voltage motors, bearing related failures can account for 41% of faults](https://blog.est-aegis.com/in-medium-voltage-motors-bearing-related-failures-can-account-for-41-of-faults?hsLang=en-us) The presentation "[***Medium Voltage Induction Motor Protection and Diagnostics***](https://publish.illinois.edu/grainger-ceme/files/2014/06/CEME308GeorgiaTech.pdf)," published online by... 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