Patent ID: 6164831
Filing Date: 2000-12-26
Classification: A61C,F16C,Y10S

Abstract:
A rolling bearing for a high speed rotating equipment, said rolling bearing being constructed of an outer ring, an inner ring, rolling elements and a retainer to retainably support at least a rotary shaft thereon, wherein:said rolling elements are non-metallic inorganic balls;said retainer is composed of a molded porous synthetic resin body having a porous portion of a communicated structure in at least a part thereof;said rolling elements and said retainer are lubricated with a nondrying lubricating oil; andwherein said lubricating oil comprises a nondrying vegetable oil, and said nondrying vegetable oil comprises;(i) at least 60 wt. % of at least one mono-unsaturated fatty acid containing one unsaturated bond per molecule; and(ii) at most 30 wt. % of at least one poly-unsaturated fatty acid containing at least two unsaturated bonds per molecule.