Many methods are available for babitting of bearing surfaces, the selection of a particular material and process requires thorough analysis of the actual service conditions. Babbitting by wire spray process is recommended for bearings of turbine, compressors, pumps, Diesel and Petrol engines etc. In a typical microstructure of tin base babbit, there are copper tin rods arranged in a star-shaped pattern and large cubes of tin-Antimony compounds, all in a ductile tin-rich entectic. The tin-Antimony cubes are hard and contribute to the excellent wear resistance of babbit. The function of the coating is to provide wear resistance with a low coefficient of Friction, in lubricated services. This can only be achieved by spray technique of lead free tin babbit. The finished surface has microscopic surface pores which hold lubricant and release it when needed.