--- title: 3 Things You Need to Know About UL Recognized Component Mark - Is it Required for AEGIS Rings? description: 3 things you need to know about UL Recognized Component Mark - is it required for AEGIS Rings? image: https://blog.est-aegis.com/hubfs/Imported_Blog_Media/2018-EASA-in-Milwaukee-Dec-22-2021-03-23-47-15-PM.jpg --- [![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) # 3 Things You Need to Know About UL Recognized Component Mark - Is it Required for AEGIS Rings? [Home](https://www.est-aegis.com/) » [Blog](https://blog.est-aegis.com/) » 3 Things You Need to Know About UL Recognized Component Mark - Is it Required for AEGIS Rings? [AEGIS](https://blog.est-aegis.com/author/estaegis) May 7, 2018 The AEGIS® Shaft Grounding Ring does not require a UL® listing or a UL recognized component certificate and its installation does not alter the UL listing of the product onto which it is installed. AEGIS shaft grounding rings are designed to be installed by: 1. Motor manufacturers on new motors in the factory. 2. Motor Repair shops on existing motors and new motors. 3. Field maintenance personnel on installed motors. ### Here are the 3 things you need to know: #### 1. Scenario: You are an electric motor repair business or maintenance technician and someone tells you "*unless there is a UL RECOGNIZED COMPONENT MARK on the component, it can't be installed on the motor." * **Not true.  ** 1. Per information on the UL website, the [UL RECOGNIZED COMPONENT MARK](https://www.ul.com/marks/ul-listing-and-classification-marks/appearance-and-significance/marks-for-north-america/) is for components that are *"**to be installed at the factory, not in the field and they may have restricted performance capabilities that limit their use."*** 2. Some suppliers of spring-enabled carbon block brushes have applied and received the "UL RECOGNIZED COMPONENT MARK."  If this is the case **one should ask if their component has any restricted performance capabilities which would restrict their use.** 3. AEGIS Shaft Grounding Rings do not have a UL RECOGNIZED COMPONENT MARK because it is not required by the motor or equipment manufacturers.  **The mark has nothing to do with motor repair or field installations and AEGIS Rings have no "restricted performance capabilities."** 4. The AEGIS Shaft Grounding Ring is a passive shaft grounding device with no moving parts.  They simply sit over the motor's shaft and the hundreds of thousands of conductive microfibers do the work, discharging shaft voltage away from the motor's bearings to ground. [![Illustration of AEGIS ring on an electric motor](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/lunch-and-learn-2.jpg?width=320&height=247&name=lunch-and-learn-2.jpg)](http://www.est-aegis.com/) #### 2. Is it required that ALL components which go into a motor or system have a UL RECOGNIZED COMPONENT MARK?  **The simple answer is NO.** 1. An electric motor is considered a component and most carry the UL RECOGNIZED COMPONENT MARK on their nameplates.  That is because they ***"are intended to be installed in another device, system or end product"*** \[[source: UL website](https://www.ul.com/marks/ul-listing-and-classification-marks/appearance-and-significance/marks-for-north-america/)\] 2. Not every subcomponent in an electric motor has a UL RECOGNIZED COMPONENT MARK, and they are not required by the motor manufacturer to have one. 3. AEGIS Rings for example, as a subcomponent to a motor, do not need a UL RECOGNIZED COMPONENT MARK.   ![Motor nameplate with UL Listing and other information](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Motor-Name-Plate_jpg-300x189.png?width=300&height=189&name=Motor-Name-Plate_jpg-300x189.png) Motor Nameplate with [UL RECOGNIZED COMPONENT MARK](https://www.ul.com/marks/ul-listing-and-classification-marks/appearance-and-significance/marks-for-north-america/) #### 3. If a shaft grounding ring does not have the "UL RECOGNIZED COMPONENT MARK" can it be installed on UL Listed equipment or an electric motor by the motor manufacturer?  **Of course, it can!** 1. AEGIS Shaft Grounding Rings are [factory installed on electric motors](https://www.est-aegis.com/where-to-buy/oems-with-aegis/) manufactured by ABB (Baldor), WEG, Regal, Leeson, TECO, GE, NIDEC, and others.  These motors have the UL RECOGNIZED COMPONENT MARK on their nameplates. [![Motors-with-AEGIS-Inside-2](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/Motors-with-AEGIS-Inside-2.jpg?width=500&height=294&name=Motors-with-AEGIS-Inside-2.jpg)](http://www.est-aegis.com/oems.php) Motors with **AEGIS Shaft Grounding Rings** Factory Installed #### The following is an excerpt from the UL website.  Visit the link below for the most up to date information UL RECOGNIZED COMPONENT MARK *"These are Marks consumers rarely see because they are specifically used on component parts that are part of a larger product or system. These components may have restrictions on their performance or may be incomplete in construction." * *"Components covered by UL’s Recognized Component program are intended to be installed in another device, system or end product. They are to be installed at the factory, not in the field and they may have restricted performance capabilities that limit their use."* [Shaft Grounding Rings](https://blog.est-aegis.com/tag/shaft-grounding-rings), [FAQ](https://blog.est-aegis.com/tag/faq), [Motors with AEGIS Installed](https://blog.est-aegis.com/tag/motors-with-aegis-installed) ### Subscribe To Our Blog ## Read On ### [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,... ### [Facility Managers Know:  Motor Downtime is Disruptive and Expensive!](https://blog.est-aegis.com/15-costs-you-can-avoid-in-your-facility?hsLang=en-us) In any facility, when electric motors fail, the costs can be very high. In any maintenance... ### [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... 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