Low-friction sliding member in transmission, and transmission oil therefor
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United States of America Patent
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Jan 15, 2008
Grant Date -
Apr 21, 2005
app pub date -
Aug 19, 2004
filing date -
Aug 22, 2003
priority date (Note) -
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Abstract
A low-friction sliding member in a transmission is at least one of sliding members which are in slidable contact with each other in presence of a transmission oil composition. The low-friction sliding member includes a base material having a sliding section. A hard carbon thin film is coated at a sliding surface of the sliding section of the base material. The hard carbon thin film contains hydrogen in an amount not more than 20 atomic %. The transmission oil composition contains at least one of organic oxygen-containing compound and aliphatic amine compound.
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