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Tribo-Characteristics of Cryogenic Hybrid Ceramic Ball Bearings for Rocket Turbopumps: Bearing Wear and Transfer Film©

 

作者: Masataka Nosaka,   Masataka Kikuchi,   Mamoru Oike,   Nobuyuki Kawai,  

 

期刊: Tribology Transactions  （Taylor Available online 1999）
卷期: Volume 42, issue 1  

页码: 106-115

 

ISSN:1040-2004

 

年代: 1999

 

DOI:10.1080/10402009908982197

 

出版商: Taylor & Francis Group

 

关键词: Bearings;Ceramic Bearings;Self-Lubricating Bearings;Wear;Temperatures;Rocket Engines;Lubricants;Surface Films and Coatings;Surface Analytical Techniques;Steel;Low Temperatures

 

数据来源: Taylor

 

摘要:

The self-lubricating performance of the two types of modified, angular-contact 25-mm-bore ball bearings, i.e., a hybrid ceramic bearing with Si3N4ceramic balls and an all-steel bearing, was evaluated based on wear inspection as well as X-ray photoelectron spectroscopic (XPS) analysis of transfer films. These bearings had been tested in liquid hydrogen (LH2), liquid oxygen (LO2), or liquid nitrogen (LN2) at speeds to 50,000 rpm and thrust loads to 2840 N.

 

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