Occurrence of Grease Lubricated Impact-Sliding Composite Wear

In industrial chain drives, the sleeve slides on pin and impact loading occurs due to polygon effect, while collision between ball cage usually produces an impact-sliding motion in rolling element bearings. Aiming at addressing occurrence of surface damage caused by motion, a ball–disk test rig employing optical interference technology was designed built realize load variation. Two kinds commercial grease types, Klüber Centoplex 3 2EP, were used experiments when glass disk constant speed steel collides into them. The sliding motions controlled PLC programming. After experiments, mid-section film distributions measured using DIIM software. results show that can rapidly occur even first working cycle, phenomenon is affected speed, maximum load, consistency. When low, multiple contacts asperity peaks interior contact region develop adhesive wear. increases, wear starts side-lobe position elastohydrodynamic lubrication (EHL) horseshoe shape extends with time accompanied obvious scratches. mechanism investigated provides valuable visible information for further exploration composite It suggested great attention should be paid occurring since such conditions are very common applications.