Friction Resistance of Refined, Bleached and Deodorized (RBD) Palm Olein Using Modified Pin-on-disk Tribotester

A friction resistance of refined, bleached and deodorized (RBD) palm olein was evaluated using a modified pin-on-disk tribotester. RBD palm olein was selected due to its superior tribological properties and large production in Malaysia. In this research, 5ml of RBD palm olein was applied on the rotating grooved-disk. The flat-ended pin was used as a specimen. The material was titanium for both pin and disk. The normal loads applied are 4.96N and 19.68N. The experiments were run for one hour. The wear rate of the pin and friction coefficient was calculated. Same experiments were conducted using commercial hydraulic oil and additive-free paraffinic mineral oil. The results were compared with RBD palm olein. The friction coefficient with the lubrication of RBD palm olein was the lowest for 4.96N and 19.68N under normal load conditions. Wear rate obtained by RBD palm olein at normal load 4.96N was the lowest; however, RBD palm olein showed a high wear rate when high normal load (19.68N) was applied.