--- title: What is Shaft Grounding? | AEGIS® Blog | Shaft Voltage description: Shaft Voltage | 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 Shaft Voltage:     [Home](https://www.est-aegis.com/) » Blog #   Blog [![spark gap transmitters](https://blog.est-aegis.com/hs-fs/hubfs/spark_emit.png?width=365&name=spark_emit.png)](https://blog.est-aegis.com/detecting-bearing-current-other-methods?hsLang=en-us) ## [Detecting Bearing Current: Other Methods](https://blog.est-aegis.com/detecting-bearing-current-other-methods?hsLang=en-us) In our last post, we looked at how shaft voltage testing can be used to detect stray current arcing... [Read More](https://blog.est-aegis.com/detecting-bearing-current-other-methods?hsLang=en-us) [![Bearing current chart](https://blog.est-aegis.com/hs-fs/hubfs/cmv-vs-disch-2us.png?width=365&name=cmv-vs-disch-2us.png)](https://blog.est-aegis.com/detecting-bearing-current-with-shaft-voltage-testing?hsLang=en-us) ## [Detecting Bearing Current with Shaft Voltage Testing](https://blog.est-aegis.com/detecting-bearing-current-with-shaft-voltage-testing?hsLang=en-us) Electric motors controlled by drives are at risk of destructive bearing currents causing premature... [Read More](https://blog.est-aegis.com/detecting-bearing-current-with-shaft-voltage-testing?hsLang=en-us) [![best practice](https://blog.est-aegis.com/hs-fs/hubfs/best-practice-simp.png?width=365&name=best-practice-simp.png)](https://blog.est-aegis.com/prevent-bearing-failure-with-shaft-grounding-rings-protect-electric-motors?hsLang=en-us) ## [Why Use Shaft Grounding Rings on Electric Motors?](https://blog.est-aegis.com/prevent-bearing-failure-with-shaft-grounding-rings-protect-electric-motors?hsLang=en-us) Electric motors are the heartbeat of many industries. From manufacturing plants to office... [Read More](https://blog.est-aegis.com/prevent-bearing-failure-with-shaft-grounding-rings-protect-electric-motors?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) [![Digital Oscilloscope](https://blog.est-aegis.com/hs-fs/hubfs/tester-glam.jpg?width=365&name=tester-glam.jpg)](https://blog.est-aegis.com/digital-oscilloscope-for-shaft-voltage-testing?hsLang=en-us) ## [Advantages of Using a Digital Oscilloscope for Shaft Voltage Testing](https://blog.est-aegis.com/digital-oscilloscope-for-shaft-voltage-testing?hsLang=en-us) The[digital oscilloscope](https://www.est-aegis.com/product/mounting-accessories/shaft-voltage-tester/) is an important testing device for accurately measuring voltage signals,... [Read More](https://blog.est-aegis.com/digital-oscilloscope-for-shaft-voltage-testing?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) [![bearing current](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/phase-vi-300x217-1.png?width=365&name=phase-vi-300x217-1.png)](https://blog.est-aegis.com/three-types-of-bearing-current?hsLang=en-us) ## [Three Types of Bearing Current: Causes](https://blog.est-aegis.com/three-types-of-bearing-current?hsLang=en-us) [Read More](https://blog.est-aegis.com/three-types-of-bearing-current?hsLang=en-us) [![Oscillograph of shaft voltage discharging through bearing](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Pitting-Discharge-Event630px-300x238.jpg?width=365&name=Pitting-Discharge-Event630px-300x238.jpg)](https://blog.est-aegis.com/electrical-bearing-protection-qa-part-31?hsLang=en-us) ## [Electrical Bearing Protection Q&A - Part 31 Detecting Damage](https://blog.est-aegis.com/electrical-bearing-protection-qa-part-31?hsLang=en-us) Q1. Are there any widely accepted ways to quantify the degree of electrical damage a bearing has... [Read More](https://blog.est-aegis.com/electrical-bearing-protection-qa-part-31?hsLang=en-us) [![enhancing system reliability through vibration technology](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/sylvester-cover-203x300.png?width=365&name=sylvester-cover-203x300.png)](https://blog.est-aegis.com/a-new-technical-reference-for-condition-monitoring?hsLang=en-us) ## [A New Technical Reference for Condition Monitoring](https://blog.est-aegis.com/a-new-technical-reference-for-condition-monitoring?hsLang=en-us) *Enhancing System Reliability through Vibration Technology*, by James Sylvester, is a new manual of... 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