Based on the fundamentals of mathematics, technical mechanics and materials, and rheology as well, the friction processes and the formationwear are explained. Moreover, the systematic approach to modelling and analysis of scientific problems will be explained in detail. As a result of this approach, it is desired, that friction and wear processes of pre-selected machine elements may be rated properly, analysed, and quantified finally.

Contents:

• Contact geometry of rough surfaces
• required energy density
• aparrent frictional energy density
• Lubricants
• Friction model for a grease lubricated contact
• Rheological wear of lubricating greases