Songhua Li, Shanhang Huang, Chao Wei, Jian Sun, Yonghua Wang, Kun Wang
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The bearing life testing machine is used to test the Si<sub>3</sub>N<sub>4</sub> full ceramic ball bearing using polytetrafluoroethylene (PTFE) cage under dry friction conditions, and the self-lubricating full ceramic ball bearing heat generation model is established.</p><!--/ Abstract__block -->\n<h3>Findings</h3>\n<p>With the decrease of S<sub>a</sub> and S<sub>sk</sub> on the raceway surface and the increase of S<sub>ku</sub>, the average height of the raceway surface decreases, and the peaks and valleys tend to be symmetrically distributed on the average surface, and the surface texture becomes tighter. This kind of raceway surface topography is beneficial to form a thin and uniform filamentous PTFE transfer film with a wide coverage area on the raceway surface based on consuming less cage materials and improving the temperature rise characteristics of hot isostatic pressing silicon nitride full ceramic ball bearings.</p><!--/ Abstract__block -->\n<h3>Originality/value</h3>\n<p>The research results provide a theoretical basis for the reasonable selection of Si<sub>3</sub>N<sub>4</sub> ring raceway processing technology and have important significance for improving the working characteristics and service life of Si<sub>3</sub>N<sub>4</sub> full ceramic ball bearings under dry friction conditions.</p><!--/ Abstract__block -->","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of raceway surface topography based on solid lubrication on temperature rise characteristics of HIPSN full ceramic ball bearings\",\"authors\":\"Songhua Li, Shanhang Huang, Chao Wei, Jian Sun, Yonghua Wang, Kun Wang\",\"doi\":\"10.1108/ilt-05-2024-0181\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3>Purpose</h3>\\n<p>This study aims to understand the influence of raceway surface topography on the temperature rise characteristics of silicon nitride (Si<sub>3</sub>N<sub>4</sub>) full ceramic ball bearing and improve its service life.</p><!--/ Abstract__block -->\\n<h3>Design/methodology/approach</h3>\\n<p>The arithmetic average height S<sub>a</sub>, skewness S<sub>sk</sub> and kurtosis S<sub>ku</sub> in the three-dimensional surface roughness parameters are used to quantitatively characterize the surface topography of the raceway after superfinishing. The bearing life testing machine is used to test the Si<sub>3</sub>N<sub>4</sub> full ceramic ball bearing using polytetrafluoroethylene (PTFE) cage under dry friction conditions, and the self-lubricating full ceramic ball bearing heat generation model is established.</p><!--/ Abstract__block -->\\n<h3>Findings</h3>\\n<p>With the decrease of S<sub>a</sub> and S<sub>sk</sub> on the raceway surface and the increase of S<sub>ku</sub>, the average height of the raceway surface decreases, and the peaks and valleys tend to be symmetrically distributed on the average surface, and the surface texture becomes tighter. 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Effect of raceway surface topography based on solid lubrication on temperature rise characteristics of HIPSN full ceramic ball bearings
Purpose
This study aims to understand the influence of raceway surface topography on the temperature rise characteristics of silicon nitride (Si3N4) full ceramic ball bearing and improve its service life.
Design/methodology/approach
The arithmetic average height Sa, skewness Ssk and kurtosis Sku in the three-dimensional surface roughness parameters are used to quantitatively characterize the surface topography of the raceway after superfinishing. The bearing life testing machine is used to test the Si3N4 full ceramic ball bearing using polytetrafluoroethylene (PTFE) cage under dry friction conditions, and the self-lubricating full ceramic ball bearing heat generation model is established.
Findings
With the decrease of Sa and Ssk on the raceway surface and the increase of Sku, the average height of the raceway surface decreases, and the peaks and valleys tend to be symmetrically distributed on the average surface, and the surface texture becomes tighter. This kind of raceway surface topography is beneficial to form a thin and uniform filamentous PTFE transfer film with a wide coverage area on the raceway surface based on consuming less cage materials and improving the temperature rise characteristics of hot isostatic pressing silicon nitride full ceramic ball bearings.
Originality/value
The research results provide a theoretical basis for the reasonable selection of Si3N4 ring raceway processing technology and have important significance for improving the working characteristics and service life of Si3N4 full ceramic ball bearings under dry friction conditions.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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