%0 Conference Paper %1 Bauer.May2008 %A Bauer, Frank %A Haas, Werner %B Proceedings of the 63th STLE Annual Meeting %D 2008 %K W_Haas from:thomasherzig dichtungstechnik F_Bauer from:brunomueller from:samuelschwamm ima %T Pushing the Limits of PTFE lip seals – New fields of applications %X Elastomeric lip seals are frequent and reliable machine components. However, their range of application is limited. If these limits are reached, the seals are often replaced by PTFE sleeve-type seals with spiral grooves (PTFE lip seals). The basic geometries and types of grooves have an empirical origin. An exact analysis and with it the knowledge of their function does not exist. This paper is a sequel to a presentation at 2005 Annual Meeting which is published in Tribology Transactions, Volume 50 Issue 3, 2007. Within this project the flow in different groove geometries was visually analyzed. Furthermore the friction torque, the pumping rates and the long time behavior regarding leakage, wear and soiling by degraded lubricants were analyzed. The knowledge and understanding of the behavior of PTFE lip seals is now available. With this knowledge it is possible to push the limits of PTFE lip seals and to use them in other fields of applications – applications with overflowed shafts.

@inproceedings{Bauer.May2008, abstract = {Elastomeric lip seals are frequent and reliable machine components. However, their range of application is limited. If these limits are reached, the seals are often replaced by PTFE sleeve-type seals with spiral grooves (PTFE lip seals). The basic geometries and types of grooves have an empirical origin. An exact analysis and with it the knowledge of their function does not exist. This paper is a sequel to a presentation at 2005 Annual Meeting which is published in Tribology Transactions, Volume 50 Issue 3, 2007. Within this project the flow in different groove geometries was visually analyzed. Furthermore the friction torque, the pumping rates and the long time behavior regarding leakage, wear and soiling by degraded lubricants were analyzed. The knowledge and understanding of the behavior of PTFE lip seals is now available. With this knowledge it is possible to push the limits of PTFE lip seals and to use them in other fields of applications – applications with overflowed shafts.}, added-at = {2021-03-25T17:56:42.000+0100}, author = {Bauer, Frank and Haas, Werner}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/283be907bccb59e451c784a3d912d725a/ima-publ}, booktitle = {Proceedings of the 63th STLE Annual Meeting}, interhash = {51510089706ed21362904fe7acbecf21}, intrahash = {83be907bccb59e451c784a3d912d725a}, keywords = {W_Haas from:thomasherzig dichtungstechnik F_Bauer from:brunomueller from:samuelschwamm ima}, note = 338, timestamp = {2021-03-25T16:56:42.000+0100}, title = {Pushing the Limits of PTFE lip seals – New fields of applications}, year = 2008 }