ROLLING BEARING RETAINER ROLLING BEARING AND METHOD FOR MANUFACTURING ROLLING BEARING RETAINER

摘要

A rolling bearing retainer is a synthetic resin retainer disposed between an inner ring and an outer ring of a rolling bearing, and a plurality of guided portions protrude radially outward from the outer diameter surface and are formed along the circumferential direction. The guided portion includes a guide surface slidable in contact with the outer ring, a chamfer portion formed at an edge portion of the guide surface, and a groove portion formed along a axial direction on a portion of the guide surface. The guide surface 27 and the chamfer portion have a surface property of arithmetic mean roughness Ra of 1.0 to 9.8 µm and a maximum height Rt of 10.1 to 102.9 µm. The parting line PL is formed radially inward from the guide surface.