Patent ID: 8182155
Filing Date: 2012-05-22
Classification: C10M,C10N,F16C

Abstract:
1. A rolling bearing comprising an inner ring and an outer ring disposed concentrically with each other; a plurality of rolling elements interposed between said inner ring and said outer ring; and a retainer holding said rolling elements; wherein lubricating grease is enclosed on the periphery of said rolling elements; at least one of said inner ring, said outer ring, said rolling elements, and said retainer is composed of a ferrous metal material on which a newly generated surface is exposed owing to frictional wear of a bearing portion; said lubricating grease contains perfluoropolyether oil as a base oil thereof and fluorocarbon resin powder as a thickener thereof; and a resin layer is formed on surfaces of said rolling elements or/and a contact surface of said retainer which contacts said rolling elements, said resin layer comprises a resin consisting of an aromatic polyimide-based resin.