STUDY AND ANALYSIS OF DIFFERENT LUBRICANTS IN HYDRODYNAMIC BEARING

Lubricants act as an antifriction medium, allowing for smoother operation, lowering the risk of unfavourable frequent failures, and ensuring reliable machine operations among various rotating parts of machines. vegetable oils are now being used in lubricants for industrial and transportation applications. potential advantages include resource renewability and biodegradability, as well as adequate performance. two-stroke engines, chain saws, hydraulics, mould releases, open gears, and farming, mining, and forestry equipment are among the applications where such oils are finding a home. these oils have also been shown to be excellent greases and fuels. sae oils are widely used in lubrication, but they are nondegradable and pollute the environment. vegetable oils have been identified as potential replacements for sae oils, particularly in lubrication applications. vegetable oils have better properties such as flash point, fire point, viscosity, and load carrying capacity. as a result, it is critical to investigate and analyse the pressure distribution in hydro dynamic journal bearing with mineral oils and vegetable oils.