| 摘要 |
PROBLEM TO BE SOLVED: To prevent occurrence of electric corrosion on a raceway surface and a surface of a rolling element of a rolling bearing, by suppressing secular degradation in physical property such as a sealing characteristic (a mechanical characteristic or an electrical characteristic). SOLUTION: A rolling bearing is fitted to a metallic fixing member or a shaft of electric equipment of an automobile, and its fitting face has a ceramic thermal spray coating after sealing treatment. A sealant for sealing treatment contains treatment an epoxy group-containing component and a hardener and does not contain a polymerizable vinyl group-containing solvent. The epoxy group-containing component is a mixture of a polyglycidyl ether compound in which the number of epoxy groups comprised in one molecule is three or more as an essential component, and containing at least one of an alkylene diglycidyl ether compound and a cycloaliphatic diepoxy compound in which the number of epoxy groups comprised in one molecule is two. A ratio of 10-80 wt.% of polyglycidyl ether compound is blended with respect to a whole epoxy group-containing component in the mixture other than the hardener. COPYRIGHT: (C)2008,JPO&INPIT
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