Experimental investigation of natural oils with and without additives in gear box lubrication.

There is a steady increment in the interest of eco-accommodating bio-ointments. The present research work analyses the tribological properties and behavior of natural oil blends under consideration when used as lubricating oil for worm gear box for evaluating possibility of these selected blends to be used as an effective lubricant in future. A worm gear box test rig is designed for this investigation. Coconut oil and castor oil are nominated as base oils whereas natural garlic oil and rapeseed are nominated as EP & friction modifier additives respectively. Total four oil blends are experimented. A test plan is followed for operating the worm gearbox test rig & samples are collected. The tribological properties of these four oil blends are equated with the tribological properties of EP90 gear oil. With the tribological properties assessment of the nominated natural oil blends, it has been observed that the selected natural oils have very decent latent to be used as lubricating oils. [ABSTRACT FROM AUTHOR]