Patent ID: 9506554
Filing Date: 2016-11-29
CPC Classification: F16C,F16H

Claim Text:
1. A rolling bearing comprising: an outer race; an inner race; rolling elements mounted between the outer race and the inner race; a seal ring covering at least an opening of a bearing space defined between the outer race and the inner race at one end of the bearing space, wherein the seal ring is formed with an oil passage hole, and wherein the seal ring is formed of resin so as to constitute a resin seal ring; a filter covering the oil passage hole and configured to catch foreign objects contained in lubricating oil, wherein the resin seal ring is fixed to the inner race; and an annular member fixed to the resin seal ring and made of a material softer than a material forming the resin seal ring; wherein the annular member forms a lip portion which faces the outer race with a gap left therebetween, or abuts the outer race; wherein the filter and the resin seal ring together constitute an insert-molded unit such that the filter and the resin seal ring are integral with each other and such that peripheral edges of the filter are integrally buried in and retained in the material of the resin seal ring; wherein the filter is made of a material having a linear expansion coefficient which is larger than a linear expansion coefficient of the material forming the resin seal ring.