Investigation on the lubricity of self-lubricating ball bearings for cryogenic turbine pump | |
Department | 先进润滑与防护材料研究发展中心 |
Miao, Xusheng1; Hu M(胡明)2; Li, Aimin3; Wang DS(王德生)2; Weng LJ(翁立军)2; Li, Xiangyang3; Zhang, Guitian1; Hu M(胡明) | |
The second department | 固体润滑国家重点实验室 |
2018 | |
Source Publication | Tribology International |
ISSN | 0301-679X |
Volume | 121Pages:45-53 |
Abstract | The lubricity of newly designed self-lubricating 70-mm-bore angular contact ball bearings was tested using a special bearing tester under thrust load of about 20 kN and speed of about 20000 r/min in liquid nitrogen. The test bearing was characterized with the pure polytetrafluoroethylene (PTFE) retainer coupled with the Ag-based lubricant film initially deposited on bearing raceways. After running for 1200 and 2400 s respectively, the states of the PTFE transfer films on the surfaces of the balls and raceways as well as the wear state of the Ag-based solid lubricant film for each tested bearing were analyzed mainly by scanning electron microscopy and X-ray photoelectron spectroscopy. The results indicated that good lubricating conditions were obtained for all tested bearings. The newly designed self-lubricating ball bearing could run steadily for more than 2400 s under high speed, heavy load and at cryogenic temperature conditions. The formation and the evolution of PTFE transfer films with bearing operation are mainly discussed according to the relevant analysis. |
Keyword | Rocket-turbopump Self-lubricating Ball Bearing Ptfe Transfer Film Lubricating Performance |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.triboint.2018.01.041 |
Indexed By | SCI |
Language | 英语 |
Funding Project | PVD润滑薄膜研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/23657 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Hu M(胡明) |
Affiliation | 1.Northwestern Polytech Univ, Sci Technol Combust Internal Flow & Thermal Struc, Xian 710012, Shaanxi, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 3.Xian Aerosp Prop Inst, Xian 710012, Shaanxi, Peoples R China |
Recommended Citation GB/T 7714 | Miao, Xusheng,Hu M,Li, Aimin,et al. Investigation on the lubricity of self-lubricating ball bearings for cryogenic turbine pump[J]. Tribology International,2018,121:45-53. |
APA | Miao, Xusheng.,Hu M.,Li, Aimin.,Wang DS.,Weng LJ.,...&胡明.(2018).Investigation on the lubricity of self-lubricating ball bearings for cryogenic turbine pump.Tribology International,121,45-53. |
MLA | Miao, Xusheng,et al."Investigation on the lubricity of self-lubricating ball bearings for cryogenic turbine pump".Tribology International 121(2018):45-53. |
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