friction real aparent area
General Topics

Guidance Notes on Friction

19.03.2018 tribonet 1,495 Views

In dry sliding between a given pair of materials under steady conditions, the coefficient of friction may be almost constant. This is the basis for two EMPIRICAL Laws of Sliding Friction, which are often known […]

Contact Mechanics
General Topics

Contact Mechanics Book

06.03.2018 tribonet 258 Views

The Handbook on Contact Mechanics (Handbuch der Kontaktmechanik) co-authored by Honorary Professor of Tomsk Polytechnic University, head of the Department of System Dynamics and Friction Physics at Technical University Berlin, Valentin Popov, a TPU alumnus […]

Ertel-1955
General Topics

On the history of elastohydrodynamics

01.02.2018 tribonet 694 Views

Here we present an abstract to a paper devoted to the history of eastohydrodynamic theory and his founder – Alexander Mohrenstein-Ertel. This paper discusses in detailes the peculiar biography of the scientist and the early years of the […]

General Topics

After the Mystery of Rotary Lip Seals

07.02.2017 F. Xavier Borras 2,886 Views

Lip seals compete with mechanical face seals in sealing oil or grease in rotary shaft applications. Under certain running conditions both kinds of seals can be used however, the latter ones are generally used for […]

grease-image-featured
General Topics

What contributes to thicker grease films ?

27.09.2016 Febin Cyriac 212 Views

A rolling bearing preferably runs under EHL conditions. The film thickness between the rolling elements and the rings is determined by the lubricant properties, operating conditions and bearing design. During the initial phase of operation, […]