What is tribology?
Tribology is the study of science and engineering of interacting surfaces in relative motion. It includes the study and application of the principles of friction, lubrication and wear. Tribology is a branch of mechanical engineering and materials science.

Tribology’s economic and commercial impact is vast. The science reduces energy use, lowers the cost of maintenance and replacement, develops new technology, and solves resource problems, such as the lack of clean water. Proper tribological procedures save an estimated 1.3% to 1.6% of a nation’s gross domestic product—a savings of hundreds of billions of dollars (U.S. currency) in larger countries. Virtually every nation has realized it cannot afford to overlook the economic, industrial, and commercial advantages of tribology. Consequently, tribology is a science that is constantly being advanced by thousands of researchers around the world. Lubrication engineering is the practical application of that science, generally in the development of lubricants and their proper usage and maintenance. 

What is STLE? 

STLE, one of the largest professional societies in the field, serves 15,000 industry professionals worldwide.

To advance the science of tribology and the practice of lubrication engineering in order to foster innovation, improve the performance of equipment and products, conserve resources and protect the environment.

Online webinars, education courses and professional certification programs offer opportunities for continuing education to enhance your career and create value for your company.


STLE organizes, supports, co-sponsors and hosts meetings to provide the tribology and lubrication communities an opportunity to network, exchange ideas and information.

Educating technical professionals to compete in the global business environment is STLE's core mission of serving as a trusted provider of education and a workforce development partner.

STEM programs, scholarships and student outreach programs are a cornerstone to communicating the value of tribological innovations to the next generation of scientists and engineers.

In the Spotlight


Tribology from all angles: Same problem, different perspectives
(posted on May 18, 2017)
When chemists, materials scientists and mechanical engineers work on the same problem, finding a common language can be an issue in itself.
Read More >

How I stopped worrying and learned to love risk (posted on May 18, 2017)
Forget the Fear Fascists. With time and a little understanding, you can conquer your anxieties.
Read More >
What a year! (posted May 18, 2017)
Increasing awareness and interest in the tribology community was among STLE's many 2017 accomplishments. 
Read More >


Personalize Your Education. Advance Your Career.
STLE Learning Pathways is a new online resource library for lubrication industry professionals to help identify, align and target their education and career development needs with access to technical articles, courses, webinars and books that will help them better serve their customers and employers. 
Learn More >


Tribology Opportunities for Enhancing America's Energy Efficiency 
The Tribology Opportunities for Enhancing America's Energy Efficiency Report, funded by the U.S. Department of Energy's Advanced Research Projects Agency-Energy (ARPA-E), summarizes the results from a workshop STLE hosted at the 2016 Annual Meeting in Las Vegas. The purpose of the workshop was to explore opportunities in advanced tribological science and engineering of energy technologies across a wide range of practical application sectors. You'll find the results of these efforts in the report. 
Order your free copy >


Trends in Tribology and Lubrication Engineering: Industry Leader Predictions Report

The Trends in Tribology and Lubrication Engineering: Industry Leader Predictions Report evaluates the impact of changes in industry, technology and the economy on the field. The 20-page report is based on a year-long study of nearly 1,000 industry experts surveyed with the goal of tapping into their collective wisdom and insight and drawing conclusions about the future of tribology and lubrication engineering. 
Order your free copy >

Report on Emerging Issues and Trends

STLE’s Report on Emerging Issues and Trends, is the culmination of a multi-phase research effort to evaluate trends and predict future developments impacting tribology and lubrication engineering. The research encompasses the global opinions and experiences of nearly 1,000 tribologists and lubrication engineers who participated in the project as advisors, interview and focus group participants, and survey respondents. Order your free copy >


Download the STLE 2017 Mobile App
(May 10, 2017)

The mobile app for STLE's 2017 Annual Meeting & Exhibition is now available for download. Search STLE 2017 in the app store or use the auto-detect link to download on your device. www.tripbuildermedia.com/apps/stle2017.

Representatives Ryan, Lipinski, and Doyle Introduce Resolution to Emphasize the Impact of Tribology on the U.S. Economy
(May 5, 2017)

Representatives Ryan, Lipinski, and Doyle introduced a resolution to emphasize the massive economic impact of tribology on the U.S. economy and highlight the need for further research and development into the field.

Plan your STLE2017 conference itinerary with the newly released Annual Meeting Program Guide
(May 2, 2017)

The final iteration of the 2017 Annual Meeting program guide has just been releases. Use this version of the guide to plan you meeting itinerary.

Rolling Element Bearing Roundtable Sessions @ STLE2017
(Posted April 28, 2017)

These sessions are designed to provide additional opportunities for attendees to learn and connect with industry colleagues.
Click here for more details on the roundtable session.

Upcoming Events

STLE 72nd Annual Meeting & Exhibition
Atlanta, GA | May 21-25

STLE Twin Cities Section Social Gathering 
Atlanta, GA | May 23

STLE Hamilton Section Golf Social
Burlington, ON, Canada | May 26

STLE Chicago Section Golf Outing
Woodridge, IL | June 6

NLGI 84th Annual Meeting
Squaw Creek, CA | June 10-13

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