Emilia Kozuch Abstract Fluid Sealing conference.pdf (14.53 kB)
Download file

Performance evaluation of radial shaft seals of automotive transmission systems [Abstract]

Download (14.53 kB)
conference contribution
posted on 2018-08-06, 12:41 authored by Emilia Kozuch, Petros Nomikos, Nick MorrisNick Morris, Ramin RahmaniRamin Rahmani, Homer Rahnejat
The effective sealing of components in relative motion poses a significant challenge in numerous engineering applications. One such application is the interfacial sealing of the driveshaft with the transmission casing. This contact conjunction is critical for retention of transmission oil. Excess leakage can lead to reduced transmission efficiency, wear and environmental contamination. To mitigate these untoward effects, radial lip seals are commonly used. The current research aims to improve the performance of radial lip seals through improved understanding of the complex driveshaft lip seal tribological conditions. This is achieved through topographical measurement of the counter face surfaces, using a focus variation measurement technique, combined with numerical analysis. The numerical analysis enables the determination of the effect of surface-specific roughness characteristics upon the lubricant film behaviour. It involves the use of an averaged Reynolds equation and a contact mechanics model. Various shaft surface finishing procedures are investigated and their resulting lubricant leakage and frictional performance are reported. The approach allows the evaluation of various surface finishing procedures, leading to recommendations based on pertinent topographical parameters for effective sealing.



  • Mechanical, Electrical and Manufacturing Engineering

Published in

24th International Conference on Fluid Sealing (FS 2018)


KOZUCH, E. ... et al., 2018. Performance evaluation of radial shaft seals of automotive transmission systems. Presented and published at the 24th International Conference on Fluid Sealing (FS 2018), Manchester, 7-8th March.


British Fluid Power Association


VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date



This paper is in closed access.