Patent ID: 8882361

Claim:
A thrust roller bearing provided with an inner race having an outer periphery side, an outer race adjacent to said outer periphery side of said inner race and having an inner peripheral surface side. an annular roller accommodating space between said inner peripheral surface side of said outer race and said outer periphery side of said inner race, a plurality of rollers arranged in said annular roller accommodating space, each of said rollers being capable of rolling around a roller center axis (X-X) which is perpendicular to a revolving axis (O-O) of said inner race and said outer race and each said roller center axis (X-X) extending in a radial direction of said thrust roller bearing and supporting said inner race and said outer race capable of relative rotation, and a cage provided in said annular roller accommodating space for retaining each said roller capable of rolling, characterized in that: said outer race includes said inner peripheral surface side, with which said cage is capable of making contact, and an outer race side thrust raceway surface on which each of said plurality of rollers rolls: said cage is composed of a plurality of cage separate bodies which are separated from each other and which are arranged in said annular roller accommodating space over an entire circumferential length of said annular roller accommodating space; each said cage separate body is configured having two projecting portions which are projecting from each said cage separate body radially toward said inner peripheral surface side of said outer race, said two projecting portions being spaced apart from each other in a peripheral direction of said outer race on an outer wall surface of each said cage separate body opposed to said inner peripheral surface side of said outer race; and a top portion of each said projecting portion of each said cage separate body is brought into contact with said inner peripheral surface side of said outer race when each of said cage separate bodies is displaced toward said inner peripheral surface side of said outer race.