Azis, S. and Zakinura, M. 2018. ANALISA UMUR PAKAI (LIFETIME) BALL BEARING TIPE UCF 4 BOLT FLANGE UNIT PADA MESIN SPIN COATING ABRASIVE CLUTCH TEST DI PT XY. Jurnal Poli-Teknologi. 16, 3 (Jan. 2018). DOI:https://doi.org/10.32722/pt.v16i3.984.