Sitorus, J., Silitonga, D., Kolala, P., Afisna, L. and Alfian, D. 2025. Experimental Study Of Wear Testing Of ASTM 440C Steel On A Ball-On-Disc Tribometer Using Variations Of Lubricants. Jurnal Vokasi Mekanika (VoMek). 7, 4 (Nov. 2025), 462-470. DOI:https://doi.org/10.24036/vomek.v7i4.896.