--- title: What is Shaft Grounding? | AEGIS® Blog | AEGIS PRO Rings description: AEGIS PRO Rings | 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 AEGIS PRO Rings:     [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) [![proring collection ](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/AEGIS-PRO-ring-collection-300x200.jpg?width=365&name=AEGIS-PRO-ring-collection-300x200.jpg)](https://blog.est-aegis.com/aegis-pro-rings-advanced-motor-bearing-protection-solutions?hsLang=en-us) ## [Maximizing Bearing Protection with AEGIS PRO Rings](https://blog.est-aegis.com/aegis-pro-rings-advanced-motor-bearing-protection-solutions?hsLang=en-us) Electric motors are the backbone of many industrial operations. When they fail, the repercussions... [Read More](https://blog.est-aegis.com/aegis-pro-rings-advanced-motor-bearing-protection-solutions?hsLang=en-us) [![pro ring series](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/AEGIS-PRO-ring-collection-300x200.jpg?width=365&name=AEGIS-PRO-ring-collection-300x200.jpg)](https://blog.est-aegis.com/maximizing-electric-motor-performance-with-aegis-pro-series?hsLang=en-us) ## [Maximizing Performance with AEGIS® PRO Series](https://blog.est-aegis.com/maximizing-electric-motor-performance-with-aegis-pro-series?hsLang=en-us) Bearing protection plays a crucial role in the longevity of electric motors, generators, and... [Read More](https://blog.est-aegis.com/maximizing-electric-motor-performance-with-aegis-pro-series?hsLang=en-us) [![bearing protection ](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/AEGIS-PRO-ring-collection-300x200-2.jpg?width=365&name=AEGIS-PRO-ring-collection-300x200-2.jpg)](https://blog.est-aegis.com/aegis-launches-new-pro-series-line-of-shaft-grounding-rings-for-large-ac-and-dc-motors-turbines-and-generators?hsLang=en-us) ## [AEGIS PRO Rings:  Protection for Large Motors, Turbines, & Generators](https://blog.est-aegis.com/aegis-launches-new-pro-series-line-of-shaft-grounding-rings-for-large-ac-and-dc-motors-turbines-and-generators?hsLang=en-us) The [AEGIS PRO Series of shaft grounding rings](https://www.est-aegis.com/product/pro-series/) is designed to protect large motors in processes and... [Read More](https://blog.est-aegis.com/aegis-launches-new-pro-series-line-of-shaft-grounding-rings-for-large-ac-and-dc-motors-turbines-and-generators?hsLang=en-us) [![Monarch Cement Company’s plant in Humboldt, Kansas](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/cement-case-study1-e1527698570709.jpg?width=365&name=cement-case-study1-e1527698570709.jpg)](https://blog.est-aegis.com/cement-maker-protects-bearings-from-failure?hsLang=en-us) ## [Cement Maker Protects Bearings With AEGIS PRO Grounding Rings](https://blog.est-aegis.com/cement-maker-protects-bearings-from-failure?hsLang=en-us) ***It seemed as though nothing could stop the squealing.*** Not that the Monarch Cement Company’s huge... [Read More](https://blog.est-aegis.com/cement-maker-protects-bearings-from-failure?hsLang=en-us) [![large motor](https://blog.est-aegis.com/hs-fs/hubfs/dreamstime_s_62026330-300x200.jpg?width=365&name=dreamstime_s_62026330-300x200.jpg)](https://blog.est-aegis.com/electrical-bearing-protection-qa-19-large-motor-edition?hsLang=en-us) ## [Electrical Bearing Protection Q&A 19: Large Motor Edition](https://blog.est-aegis.com/electrical-bearing-protection-qa-19-large-motor-edition?hsLang=en-us) **Q1.  We have a 5000 hp dc motor, running at 40 rpm.  Is there an AEGIS®ring suitable for this...** [Read More](https://blog.est-aegis.com/electrical-bearing-protection-qa-19-large-motor-edition?hsLang=en-us) [![ethanol plant ](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/eth-plant-300x199.jpg?width=365&name=eth-plant-300x199.jpg)](https://blog.est-aegis.com/aegis-rings-in-ethanol-plant?hsLang=en-us) ## [High Proof Shaft Grounding: AEGIS Rings in an Ethanol Plant](https://blog.est-aegis.com/aegis-rings-in-ethanol-plant?hsLang=en-us) In early 2017, at [Red Trail Energy's ethanol plant](https://www.redtrailenergyllc.com/) in North Dakota, several large motors' ball... [Read More](https://blog.est-aegis.com/aegis-rings-in-ethanol-plant?hsLang=en-us) [![](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Picture1-300x255.png?width=365&name=Picture1-300x255.png)](https://blog.est-aegis.com/us-steel-mills-must-stay-productive?hsLang=en-us) ## [US Steel Mills Must Stay Productive](https://blog.est-aegis.com/us-steel-mills-must-stay-productive?hsLang=en-us) The American Iron and Steel Institute estimates that 20% of the cost of producing a ton of steel... [Read More](https://blog.est-aegis.com/us-steel-mills-must-stay-productive?hsLang=en-us) [![](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Picture1-e1527100456420.png?width=365&name=Picture1-e1527100456420.png)](https://blog.est-aegis.com/motor-repair-best-practices-for-vfd-driven-motors?hsLang=en-us) ## [Motor Repair Best Practices for VFD-Driven Motors](https://blog.est-aegis.com/motor-repair-best-practices-for-vfd-driven-motors?hsLang=en-us) Motors operated by variable frequency drives (VFD) are vulnerable to premature bearing failure from... [Read More](https://blog.est-aegis.com/motor-repair-best-practices-for-vfd-driven-motors?hsLang=en-us) First Prev [1](https://blog.est-aegis.com?hsLang=en-us) [2](https://blog.est-aegis.com/tag/aegis-pro-rings/page/2?hsLang=en-us) [Next](https://blog.est-aegis.com/tag/aegis-pro-rings/page/2?hsLang=en-us) [Last](https://blog.est-aegis.com/tag/aegis-pro-rings/page/2?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. All rights reserved. Made in America. - [Privacy Policy](https://www.est-aegis.com/privacy-policy/) - [Terms and Conditions](https://www.est-aegis.com/terms-and-conditions/) - [Sitemap](https://www.est-aegis.com/sitemap/)