Second-generation PTFE engine oil seal o
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Article
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2005
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Elsevier Science
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English
โ 146 KB
## Freudenberg-NOK has begun production of what it calls a 'second-generation' polytetrafluoroethylene (PTFE) engine oil seal. This is claimed to offer both performance improvements and cost savings over the first generation of PTFE seals and their elastomer predecessors. Several improvements wer