The article presents a comprehensive analysis of the influence of surface coatings and microtextures on the frictional characteristics and durability of clutch components in professional motorsport applications. The study is based on an interdisciplinary approach that integrates engineering tribology, materials science, and applied mechanics of high-load transmission systems. Particular attention is given to content and comparative analysis of both domestic and international sources describing the behavior of DLC coatings, PTFE-based composites, and iron-based laser claddings under various friction modes, thermal loads, and cyclic stresses. Critical differences between coatings are identified in terms of friction coefficient, wear volume, thermal stability, and adhesion strength to the substrate. Based on empirical data, a typology of coating applicability is proposed for different motorsport disciplines, ranging from circuit racing to rally and drag racing. Summary tables are presented to reflect the operational properties of coatings at temperatures up to 250 °C and under boundary lubrication conditions. The necessity of context-specific coating selection is substantiated, taking into account track configuration, weight constraints, and cooling requirements. Special emphasis is placed on the role of microtextures in heat distribution and contact stress regulation within the clutch. This article will be of interest to design engineers, motorsport specialists, friction system developers, and surface engineering researchers involved in the design of transmission components for extreme operating conditions.

clutch, motorsport, coating, friction

Ejsmont, J., & Sommer, S. (2021). Selected aspects of pavement texture influence on tire rolling resistance. Coatings, 11(7), 776. https://doi.org/10.3390/coatings11070776

Wilkinson, T., Järlskog, I., de Lima, J. A., Gustafsson, M., Mattsson, K., Andersson Sköld, Y., & Hassellöv, M. (2023). Shades of grey—Tire characteristics and road surface influence tire and road wear particle (TRWP) abundance and physicochemical properties. Frontiers in Environmental Science, 11, Article 1258922. https://doi.org/10.3389/fenvs.2023.1258922

Qiao, C., Yu, J., Zhang, S., & others. (2022). Combined effect of a laser cladded coating and surface texture on tribological performance under dry sliding and starved lubrication. Metals and Materials International, 28, 666–678. https://doi.org/10.1007/s12540-021-01138-9

Lyu, B., Meng, X., Zhang, R., & Cui, Y. (2020). A comprehensive numerical study on friction reduction and wear resistance by surface coating on cam/tappet pairs under different conditions. Coatings, 10(5), 485. https://doi.org/10.3390/coatings10050485

Tung, S. C., & Wong, V. (2021). Surface engineering development trends and impact of surface coatings and textures on automotive powertrain friction and wear control. Materials Performance and Characterization, 10(1), 620–650. https://doi.org/10.1520/MPC20200091

Tung, S. C. (2025). Powertrain tribology development trends and impact of surface engineering on friction and wear control. In Surface engineering – Foundational concepts, techniques and future trends [Working title]. IntechOpen. https://doi.org/10.5772/intechopen.1007649

Wu, L., Bai, Z., Hao, Q., & Qin, J. (2025). Improving wear resistance of DLC-coated metal components during service: A review. Lubricants, 13(6), 257. https://doi.org/10.3390/lubricants13060257

Di, Y., Hu, L., Sandberg, U., & Tang, C. (2025). Skid resistance performance and texture lateral distribution within the lanes of asphalt pavements. Journal of Traffic and Transportation Engineering (English Edition), 12(1), 87–107. https://doi.org/10.1016/j.jtte.2021.03.010

He, T., Chen, W., Liu, Z., Gong, Z., Du, S., & Zhang, Y. (2025). The impact of surface roughness on the friction and wear performance of GCr15 bearing steel. Lubricants, 13(4), 187. https://doi.org/10.3390/lubricants13040187

Ma, L., Fu, S., Li, J., Wang, Z., & Yang, M. (2025). Combining laser biomimetic surface microtextured and PTFE solid lubricant for improved friction property of Ti6Al4V. Scientific Reports, 15, 10457. https://doi.org/10.1038/s41598-025-94869-3.