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Reducing Operating Temperatures of Elastomeric Sealing Lips
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English
Abstract
The life of an elastomeric seal is highly dependent upon the temperature between the lip and the shaft. High temperatures will promote early failure if the limits of the material and/or sealing fluid are exceeded.
A seal design with a sinuous or wave-like contact path on the shaft will substantially lower the interface temperature, thus promoting long life. In addition, the sinuous pattern provides a positive pumping action which improves seal reliability. The selection of wave parameters to give low-interface temperature with sufficient pumping ability to offset seal and shaft defects is discussed. Experimental data show the effect of seal design and wave parameters upon performance.
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Citation
Horve, L., "Reducing Operating Temperatures of Elastomeric Sealing Lips," SAE Technical Paper 730050, 1973, https://doi.org/10.4271/730050.Also In
References
- Proceedings of Seal Symposiums, General Motors Research Publication 532 Sept. 30 1965
- Dega R. L. “Zero Leakage: Results of an Advanced Lip Seal Technology.” Jrl. Lubrication Technology, Paper No. 67-WA/LUB-11 1967
- Upper G. “Temperature of Sealing Lips.” Paper presented at Proc. Fourth Int. Conf. Fluid Sealing, B.H.R.A. 1969
- Lines D.J. O'Donoghue J.P. “Underlip Temperature in Rotary Shaft Seals.” Paper D1 presented at Proc. Fifth Int. Conf. Fluid Sealing, B.H.R.A. 1971
- Brink R. V. “The Working Life of a Seal (An Elementary Theory).” Jrl. ASLE October 1970 375 380
- Brink R. V. Horve L. A. “Wave Seals (A Solution to the Hydrodynamic Compromise).” ASLE Meeting Houston May 1972