The squeeze film formation ability of advanced space lubricant is studied under impact load by falling bearing steel ball against a flat anvil made of mild steel. Two synthetic base oils (PFPE815Z and MAC2001A) and six greases (600EF, 601EF, 602EF, R2000, ML and MU) are investigated for the EHL dimple film thickness and a breakdown of lubricant film under elastic-plastic impact. The results showed that the viscosity of the base oil 815Z, which contains the acetal group, was decreased by the high shear rate under the EHL squeeze action. To prevention of surface damage under impact load, EHL dimple film thickness is shallow, and becomes as efficient as the grease of which oil film formation is high. From the viewpoint, MU-G and ML-G are good.
- Tribology Division
Behavior of Advanced Space Lubricant Under Impact Load
- Views Icon Views
- Share Icon Share
- Search Site
Ohno, N, Mia, S, Nagao, S, Tamura, Y, Morita, S, Shiomi, H, & Obara, S. "Behavior of Advanced Space Lubricant Under Impact Load." Proceedings of the STLE/ASME 2010 International Joint Tribology Conference. STLE/ASME 2010 International Joint Tribology Conference. San Francisco, California, USA. October 17–20, 2010. pp. 183-185. ASME. https://doi.org/10.1115/IJTC2010-41049
Download citation file: