Selection of the Material on the Basis of Wear and Friction in Journal Bearing

The importance of friction and wear control cannot be over emphasized for economic reasons and longterm reliability. The savings can be substantial, and these savings can be obtained without the deployment of investment. Tribology is crucial to modern machinery which uses sliding and rolling surfaces. This article describes the tribological behavior analysis for the conventional materials i.e. PTFE (Graphite), Nickel, Nickel Chrome, Molybdenum Disulphide and New nonmetallic material Nylon. Friction and Wear are the most important parameters to decide the performance of any bearing. In this paper attempt is made to check major tribological parameters for these five materials and try to suggest better new material compared to conventional existing material. After Test on wear machine we found that MoS2 is best suitable for bearing applications because of its low wear rate, low frictional force, low coefficient of friction, low cost, better mechanical properties than others.