Journal of Mechanical Engineering Science and Technology (JMEST)
Abstract
Coconut oil-based lubricants are currently commonly used as an alternative to environmentally friendly lubricants because they are biodegradable and have a low environmental pollution impact. However, coconut oil has less than optimal lubrication capabilities compared to mineral lubricants, so the addition of beeswax additives is needed to improve its tribological characteristics. This study specifically aims to analyze the direct effect of adding varying amounts of beeswax on the performance and efficiency of coconut oil lubricants. The friction coefficient tested using pin on disc methods according to ASM G99 with the pin-on-disc tribological testing were 7075 aluminium pins with a standard diameter of 6 mm and a height of 20 mm. The disc rotation speed was 125 rpm, with a track diameter of 37 mm. The disc was made from hardened VCN steel. The operational load variations applied during these pin-on-disc simulations were set at 800 grams, 1000 grams, and 1200 grams. The lubricant compositions of beeswax were 25 grams, 30 grams, and 35 grams. The experimental results explicitly showed that the addition of 35 grams of beeswax yielded the most significant contribution to minimizing friction. This specific formulation was able to drastically reduce the friction coefficient from an initial 0.25 to 0.12, or a decrease of 52%.
Publisher
State University of Malang (UM)
First Page
366
Last Page
379
Recommended Citation
Dwi Suwari, M. I.,
Aminnudin, A.,
&
Fikri, A. A.
(2026).
Friction Coefficients Characteristic of Biodegradable Lubricants Based on Coconut Oil with the Addition of Beeswax.
Journal of Mechanical Engineering Science and Technology (JMEST), 10(2), 366-379.
DOI: https://doi.org/10.17977/2580-2402.1250
Available at:
https://citeus.um.ac.id/jmest/vol10/iss2/10
Included in
Engineering Science and Materials Commons, Materials Science and Engineering Commons, Tribology Commons