Patent ID: 8641291
Filing Date: 2014-02-04
Classification: F16C

Abstract:
1. A comb-shaped resin retainer comprising: an annular section; and a plurality of pillar sections which protrude to one side in an axial direction from one side face of the annular section, wherein a gap between the pillar sections adjacent to each other in a circumferential direction serves as a pocket for retaining a cylindrical roller having an axial center line parallel to a retainer axial center line, and a side face of the pillar section, which serves as an inner face of the pocket, is formed in a recessed shape, wherein each of the pillar sections is tilted so as to become closer to a retainer axial center as the pillar section extends toward a tip of the pillar section, and a flat portion is provided on the side face of the pillar section which serves as the inner face of the pocket, and the flat portion continues axially from a tip portion of the pillar section toward a base end portion thereof, and the opposing flat portions of the pillar sections are in parallel to each other.