tribology | Power Transmission Engineering Magazine

STLE Launches Sustainability Committee

June 18, 2024

The Society of Tribologists and Lubrication Engineers (STLE) — the premier technical society serving the needs of the tribology and lubrication engineering business sector — is pleased to announce the launch of a Sustainability Committee.

STLE Launches New “Women in Tribology” Publication and Panel

March 20, 2024

The Society of Tribologists and Lubrication Engineers (STLE) is pleased to announce a new publication and panel dedicated to women and future women in the tribology and lubrication engineering field.

STLE Opens Registration for 2024 Annual Meeting and Exhibition

February 15, 2024

The Society of Tribologists and Lubrication Engineers (STLE) — the technical society for individuals in the field of tribology and lubrication engineering — announced that registration is now open for the 2024 STLE Annual Meeting & Exhibition, May 19-23, at the Minneapolis Convention Center in Minneapolis, Minnesota

STLE Releases 2023 Report on Tribology and Lubrication Trends

July 27, 2023

The Society of Tribologists and Lubrication Engineers (STLE) – the premier technical society serving the needs of the tribology and lubrication engineering field – is pleased to announce the release of its 2023 Report on Emerging Issues and Trends in Tribology and Lubrication Engineering. The key conclusion from the 56-page report is that the application of existing and novel tribology approaches has the potential to significantly reduce greenhouse gas emissions and, as a consequence, play a prominent role in helping organizations implement sustainability practices and achieve climate change mitigation goals.

Applied Nano Surfaces Becomes Tribonex AB

June 22, 2022

Applied Nano Surfaces (ANS), founded 14 years ago as an advanced surface finishing and coating technology innovator, is now called Tribonex.

A Model for Rolling Bearing Life with Surface and Subsurface Survival - Tribological Effects

September 1, 2016

Until now the estimation of rolling bearing life has been based on engineering models that consider an equivalent stress, originated beneath the contact surface, that is applied to the stressed volume of the rolling contact. Through the years, fatigue surface–originated failures, resulting from reduced lubrication or contamination, have been incorporated into the estimation of the bearing life by applying a penalty to the overall equivalent stress of the rolling contact. Due to this simplification, the accounting of some specific failure modes originated directly at the surface of the rolling contact can be challenging. In the present article, this issue is addressed by developing a general approach for rolling contact life in which the surfaceoriginated damage is explicitly formulated into the basic fatigue equations of the rolling contact. This is achieved by introducing a function to describe surface-originated failures and coupling it with the traditional, subsurface-originated fatigue risk of the rolling contact. The article presents the fundamental theory of the new model and its general behavior. The ability of the present general method to provide an account for the surface–subsurface competing fatigue mechanisms taking place in rolling bearings is discussed with reference to endurance testing data.