Cage for rolling bearing, and rolling bearing

Abstract

Provided are that a cage for a rolling bearing in which seizure or break is not generated under a condition of a high temperature and a high speed in which a dm·n value is not less than 80×10, and a rolling bearing using the cage. The rolling bearingis provided with an inner ring, an outer ring, a plurality of rolling elementsinterposed between the inner ring and the outer ring and a cagewhich retains the rolling elements. The cageis formed by injection molding a resin composition. The resin composition comprises polyamide resin made from a dicarboxylic acid component and a diamine component as a base resin and a fiber reinforcing member added. The dicarboxylic acid component contains terephthalic acid as a main component. The diamine component contains 1,10-diaminodecane as a main component. The fiber reinforcing member contains 15 to 50 mass % of glass fibers or 10 to 35 mass % of carbon fibers based on the whole resin composition.