--- title: What is Shaft Grounding? | AEGIS® Blog | Carbon Brush description: Carbon Brush | 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 Carbon Brush:     [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) [![Grams of carbon dust worn off of a shaft grounding brush](https://blog.est-aegis.com/hs-fs/hubfs/RotorEarth005.jpg?width=365&name=RotorEarth005.jpg)](https://blog.est-aegis.com/electrical-bearing-protection-qa-part-30?hsLang=en-us) ## [Electrical Bearing Protection Q&A - Part 30 Grounding Rings and Brushes](https://blog.est-aegis.com/electrical-bearing-protection-qa-part-30?hsLang=en-us) Q1. What are the pros and cons of using a shaft grounding ring, as opposed to a shaft grounding... [Read More](https://blog.est-aegis.com/electrical-bearing-protection-qa-part-30?hsLang=en-us) [![bearing failure ](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/pg18_2-150x150-1.png?width=365&name=pg18_2-150x150-1.png)](https://blog.est-aegis.com/8-answers-to-shaft-grounding-questions-dont-let-bearing-failures-cost-you?hsLang=en-us) ## [8 Answers to Shaft Grounding Questions - Don't Let Bearing Failures Cost You](https://blog.est-aegis.com/8-answers-to-shaft-grounding-questions-dont-let-bearing-failures-cost-you?hsLang=en-us) Questions and Answers from the Plant Services Webinar, "Motors & Drives: VFDs and Motors -- What... [Read More](https://blog.est-aegis.com/8-answers-to-shaft-grounding-questions-dont-let-bearing-failures-cost-you?hsLang=en-us) [![ Carbon Block Brush causes Non-Conductive Coating on Motor Shaft ](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Carbon-Block-with-patena-film-on-shaft-277x300.jpg?width=365&name=Carbon-Block-with-patena-film-on-shaft-277x300.jpg)](https://blog.est-aegis.com/what-is-the-coating-on-the-shaft-when-a-carbon-block-brush-is-used?hsLang=en-us) ## [What is the coating on the shaft when a Carbon Block Brush is used?](https://blog.est-aegis.com/what-is-the-coating-on-the-shaft-when-a-carbon-block-brush-is-used?hsLang=en-us) A highly resistive glaze may form on brush surface, requiring periodic cleaning. This is sometimes... 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