Articles
  • Experimental and mechanistic study on the lubrication of Si3N4 full-ceramic ball bearings by PTFE self-lubricating cage material under low-temperature conditions

  • Chao Weia,b, Songhua Lia,c, Yonghua Wanga,c,*, Kun Wanga,c, Jining Zhaoa,c and Shouqi Liua,c

  • aShenyang Jianzhu University, Key Laboratory of High-end Ceramic Bearing, Shenyang 110168, China
    bShenyang Jianzhu University, School of Engineering Training and Innovation, Shenyang 110168, China
    c Shenyang Jianzhu University, School of Mechanical Engineering, Shenyang 110168, China

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This manuscript aims to explore the lubrication behavior of ceramic bearings with polytetrafluoroethylene (PTFE) cages under low-temperature conditions by studying the friction and contact characteristics between PTFE cages and rolling elements. Taking the 6206CE deep-groove ball bearing as an example, a contact model between rolling elements and cages is established to analyze the mechanical characteristics of the contact between ceramic balls and cages. Friction and wear characteristic tests for the rolling element-cage pairs in full-ceramic ball bearings are carried out, with PTFE as the research subject, to explore the influence of silicon nitride balls with different surface roughness on the friction and wear behavior of PTFE, and to establish the lubrication characteristic laws among components of silicon nitride full-ceramic ball bearings under low-temperature conditions. The research in this manuscript can provide a research foundation for the lubrication characteristics of full-ceramic ball bearings under low-temperature conditions and offer technical support for the application of full-ceramic ball bearings in low-temperature working conditions.


Keywords: Silicon nitride ceramics, Friction and wear, PTFE cage, Low temperature condition

This Article

  • 2025; 26(5): 754-766

    Published on Oct 31, 2025

  • 10.36410/jcpr.2025.26.5.754
  • Received on Jul 10, 2025
  • Revised on Aug 27, 2025
  • Accepted on Sep 8, 2025

Correspondence to

  • Yonghua Wang

  • aShenyang Jianzhu University, Key Laboratory of High-end Ceramic Bearing, Shenyang 110168, China
    c Shenyang Jianzhu University, School of Mechanical Engineering, Shenyang 110168, China
    Tel : 18624057650 Fax: 024-24692192

  • E-mail: yonghua0514@sjzu.edu.cn