Tribology in Bearing Design for High-Speed and Energy-Efficient Mechanical Systems

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Friction and Tribology".

Deadline for manuscript submissions: 31 March 2026 | Viewed by 536

Special Issue Editor


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Guest Editor
School of Machinery and Vehicles, Beijing Institute of Technology, Beijing 100081, China
Interests: rolling bearings; techniques for film thickness measurement; lubrication
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Special Issue Information

Dear Colleagues,

The performance and energy efficiency of modern mechanical systems are increasingly determined by the reliability and optimization of tribological components, particularly bearings. In high-speed applications—such as electric vehicles, aerospace powertrains, high-speed spindles, and precision robotics—frictional losses, heat generation, and wear present major challenges to performance, durability, and sustainability.

Tribology plays a central role in bearing design, providing the scientific foundation for minimizing energy consumption, improving operational stability, and extending service life. Advances in surface texturing, intelligent lubrication strategies, material engineering, and simulation-based optimization are promoting the generation of novel bearing systems that are capable of operating under extreme speed, load, and thermal conditions.

Recent progress in this area includes:

  • High-speed bearing design: elastohydrodynamic lubrication (EHL) modeling, hybrid ceramic bearings, and thermal management strategies;
  • Surface engineering and coatings: low-friction, wear-resistant textures and films for demanding environments;
  • Water-based and bio-based lubricants: sustainable alternatives for energy-efficient operation;
  • Real-time monitoring and predictive maintenance: sensor integration and AI-based tribological diagnostics;
  • Additive manufacturing in bearing components: topology-optimized structures and micro-textured surfaces;
  • Advanced experimental and computational tribology methods.

This Special Issue aims to gather high-quality original research and comprehensive review articles that contribute to advancements related to the science and engineering of tribology in bearing systems for high-speed and energy-efficient applications. By promoting the dissemination of open access research, we hope to foster interdisciplinary collaboration between tribologists, mechanical designers, and system engineers.

Dr. He Liang
Guest Editor

Manuscript Submission Information

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Keywords

  • bearing design
  • friction and wear
  • lubrication strategies
  • advanced coatings
  • thermal management
  • additive manufacturing

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Published Papers (1 paper)

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Research

22 pages, 21876 KB  
Article
Dynamic Analysis and Design of Cylindrical Roller Bearings with Arc End Surfaces of Rollers
by Maokuan Bao, Liqin Wang and Chuanwei Zhang
Machines 2025, 13(11), 993; https://doi.org/10.3390/machines13110993 - 29 Oct 2025
Viewed by 346
Abstract
The new contact model for arc end surfaces of rollers and flanges is established in a dynamic model for cylindrical roller bearings. The dynamic behaviors between roller arc end surfaces and flanges, i.e., contact pressures, sliding velocities, and PV values (peak contact pressure [...] Read more.
The new contact model for arc end surfaces of rollers and flanges is established in a dynamic model for cylindrical roller bearings. The dynamic behaviors between roller arc end surfaces and flanges, i.e., contact pressures, sliding velocities, and PV values (peak contact pressure P × sliding velocity V), are investigated and compared to those between roller corners and flanges. Based on the indicators of contact heights and axial clearances, the selection ranges of layback angles, flange axial clearances, and end radius of rollers are proposed, thereby ensuring the bearing operates normally. The results indicate that arc end surfaces are beneficial in reducing contact pressures, sliding velocities, and PV values acting on flanges, especially under high-speed conditions. With less layback angles of flanges and end radii of rollers, contact positions on rollers are more concentrated and the sliding velocity decreases obviously. However, flange heights need to be increased to prevent contact heights between rollers and flanges within the limited zones. Furthermore, since the end radius of rollers leads to a decrease in the axial clearance of flanges, the actual clearance of flanges under axial direction needs to be widened. Full article
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