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DGMK-Project Lubricants

Limits of Wear Protection for Grease Lubricated Rolling Bearings

2016 to 2020
Research Center
MSE - Institute for Machine Elements and Systems Engineering at RWTH Aachen University
Dr. Andreas Stratmann

GFE Gemeinschaftslabor für Elektronenmikroskopie of the RWTH Aachen
Prof. Dr. Joachim Mayer
IGF Plan
19279 N
Reason and Goal

The investigations carried out up until now, to clarify the wear protection effect of lubricating greases in rolling bearings, are limited to a narrow temperature range in each case. In order to enable an improved prognosis of the wear protection for grease-lubricated rolling bearing applications, a systematic consideration of the additive effectiveness in a broader, more practical temperature range is necessary. The aim of the project is therefore to clarify the temperature-related wear protection effect of greases in rolling bearings and the underlying mechanisms. Thus, the limits of action or use of the lubricants for the application will be determined and the basis for an improved design reliability will be created.


The project provides for systematic, experimental investigations on the influence of the operating temperature (-40 to 120 °C) on the wear protection effect of lubricating greases in rolling bearings. Bearing load and operating speed will be varied in a targeted manner taking into account the results of DGMK project 730. The use of known lubricating grease formulations allows the determination of additive-specific ranges of action. The wear protection mechanisms of the lubricating greases can be analysed in depth by means of detailed microanalytical investigations accompanying the tests.


The DGMK Research Report 774 has been published.

Project Status

Research Report
0,00 €
Project Chairperson

Dr. Axel Figge



Project Coordinator

Jan Ludzay

Head of the Refining and Product Application Department

Nadine Ludzay



IGF - Industrial Collective Research

Federal Ministry for Economic Affairs and Energy (BMWi)