SH120 Automatic Four Ball Tester Lubricant Anti-Wear Test Machine GB/T3142 ASTM D2783 DIN51350 JISK2519 SH120 automatic four ball machine grease wear resistance tester is in the form of sliding friction, under the condition of extremely high point contact pressure, mainly used to evaluate the bearing capacity of lubricants. In practical application, different evaluation indexes can be selected according to different uses of lubricants. automatic lubricant grease four ball
