Effect of raceway surface topography based on solid lubrication on temperature rise characteristics of HIPSN full ceramic ball bearings

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL Industrial Lubrication and Tribology Pub Date : 2024-08-27 DOI:10.1108/ilt-05-2024-0181

Songhua Li, Shanhang Huang, Chao Wei, Jian Sun, Yonghua Wang, Kun Wang

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Abstract

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 S_a, skewness S_sk and kurtosis S_ku 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 S_a and S_sk on the raceway surface and the increase of S_ku, 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.

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基于固体润滑的滚道表面形貌对 HIPSN 全陶瓷球轴承温升特性的影响

目的本研究旨在了解滚道表面形貌对氮化硅（Si3N4）全陶瓷球轴承温升特性的影响，提高其使用寿命。设计/方法/途径采用三维表面粗糙度参数中的算术平均高度Sa、偏斜度Ssk和峰度Sku来定量表征超精加工后的滚道表面形貌。利用轴承寿命试验机对使用聚四氟乙烯（PTFE）保持架的 Si3N4 全陶瓷球轴承进行了干摩擦条件下的测试，并建立了自润滑全陶瓷球轴承的发热模型。这种滚道表面形貌有利于在减少保持架材料消耗、改善热等静压氮化硅全陶瓷球轴承温升特性的基础上，在滚道表面形成薄而均匀、覆盖面积广的丝状聚四氟乙烯传递膜。

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来源期刊

Industrial Lubrication and Tribology 工程技术-工程：机械

CiteScore

3.00

自引率

18.80%

发文量

129

审稿时长

1.9 months

期刊介绍： Industrial Lubrication and Tribology provides a broad coverage of the materials and techniques employed in tribology. It contains a firm technical news element which brings together and promotes best practice in the three disciplines of tribology, which comprise lubrication, wear and friction. ILT also follows the progress of research into advanced lubricants, bearings, seals, gears and related machinery parts, as well as materials selection. A double-blind peer review process involving the editor and other subject experts ensures the content''s validity and relevance.