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.

Check out what's inside the October TLT

In the Spotlight

PC-11 targets the oil that support tomorrow's engines
(posted on September 19, 2017)
How oil formulators, engine manufacturers, distributors and end-users will adapt. 
Read More >

2017 STLE Emerging Trends Report (posted on September 19, 2017)
The updated edition provides market-by-market analysis for industry managers, researchers and lubrication engineers. Read More >

Shifting demand impacts global base stocks market (posted on September 19, 2017)
Kline & Co. analyzes such factors as economic uncertainty, rapid technological advancement and the reduced need for Group I products. Read More >

4000 miles? Try 100,000 (posted on September 19, 2017)
The road to longer car warranties was paved by the hard work and research of the tribology community. Read More >

Careers in Tribology (posted September 19, 2017)
Please take a moment to answer our short survey about careers in tribology? The results will be the basis for an article in the November issue of TLT. Take the survey >


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 >


Reserve your Company Booth Space for STLE 2018
(Sept. 7, 2017)

STLE heads to the "Mini- Apple" next May with its 73rd Annual Meeting & Exhibition at the Minneapolis Convention Center, in Minneapolis, Minnesota (USA). Don't delay. Click here for more information.

Reserve Commercial Marketing Forum Timeslots for STLE2018
(Sept. 7, 2017)

Commercial Marketing Forum (CMF) timeslots are sold on a "first come, first serve" basis. Complete the online application, which allows you to select your timeslot.

Submit your Nominations for 2018 STLE Fellow Candidates
(July 31, 2017)

Any current STLE member may propose any other STLE member for Fellow Membership by submitting a completed Proposal for Fellow nomination form to the Society. Please note nominations restrictions apply. The deadline for Fellow nominations is Sept. 30, 2017.

2017-2018 Presidential Awards Program Applications Now Open
(July 31, 2017)

STLE is accepting applications for the Society's two academic awards offered through the Presidential Award Program: The E. Richard Booser Scholarship for undergraduate students and The Elmer E. Klaus Fellowship for graduate students. Applications are being accepted now through Dec. 1, 2017.

Upcoming Events

6th World Tribology Congress
Beijing, China | Sept. 17-22

STLE Chicago Section Meeting

Willowbrook, IL | Sept. 21

STLE Northern California Section Meeting
Berkeley, CA | Sept. 27

STLE Philadelphia Section Meeting

Oreland, PA | Sept. 28

STLE Featured Videos