Avoidance of conventional lubricants in rolling bearings due to tribological coatings and increased operating life of dry-running rolling bearings

Third party funded individual grant

Project Details

Project leader:
Prof. Dr.-Ing. Sandro Wartzack
Dr.-Ing. Stephan Tremmel

Contributing FAU Organisations:
Lehrstuhl für Konstruktionstechnik

Funding source: Bayerisches Staatsministerium für Wirtschaft und Medien, Energie und Technologie (StMWIVT) (ab 10/2013)
Acronym: GreenBearings 2
Start date: 01/01/2016
End date: 31/12/2016

Research Fields

Tribologische PVD-/PACVD-Schichten
Lehrstuhl für Konstruktionstechnik
Lehrstuhl für Konstruktionstechnik

Abstract (technical / expert description):

In the GreenBearings project, it was shown that tribological coating systems in rolling bearings can be used to achieve a significant reduction in friction in the event of inadequate lubrication and an increase in operating life in dry operation. A reduction in friction means lower energy consumption in machines and plants and the complete avoidance of lubricants in dry-running ensures conservation of mineral oil resources and thus greater sustainability. Motivated by the knowledge gained in the first phase, the results for dry-running are to be statistically verified in the second phase and, in particular, the failure mechanisms are to be subjected to a more detailed damage analysis. In addition to the amorphous carbon coating systems investigated to date, other coating systems from the classic solid lubricant sector will also be investigated. These are to be modified for use in rolling contact and tested at component level under realistic conditions. The scientific work in the second phase is rounded off by the coating of rolling elements and subsequent tests in coating / coating contact. The aim is to develop a friction- and wear-reducing tribological system which will significantly increase the operating life of lubricant-free rolling bearings.


Kröner, J., Kursawe, S., Musayev, Y., & Tremmel, S. (2016). Analysing the Tribological Behaviour of DLC-Coated Dry-Running Deep Groove Ball Bearings with Regard to the Ball Material. Applied Mechanics and Materials, 856, 143-150. https://dx.doi.org/10.4028/www.scientific.net/AMM.856.143
Kröner, J., Tremmel, S., Kursawe, S., Musayev, Y., & Wartzack, S. (2016). GreenBearings 2 - Vermeidung konventioneller Schmierstoffe in Wälzlagerungen durch tribologische Schichten und Erhöhung der Gebrauchsdauer trockenlaufender Wälzlager.

Last updated on 2019-17-07 at 13:56