Patent ID: 8177437

Claim:
A rolling bearing comprising a plurality of rollers, and a retainer retaining said plurality of rollers, wherein said retainer is split into a plurality of retainer segments along a split line extending in an axial direction, said each retainer segment has a plurality of pillar parts extending in the axial direction so as to form a first pocket and a second pocket for housing the rollers, and a connection part extending in a circumferential direction so as to connect the plurality of pillar parts, the pillar parts forming the first pocket being adjacent to each other, each of adjacent pillar parts forming the first pocket having an outer diameter protrusion on an outer diameter side end to limit movement of a roller housed in the first pocket towards the outer diameter side, with an inner diameter side end of each of the adjacent pillars configured so that the roller housed in the first pocket can move towards the inner diameter side, and the pillar parts forming the second pocket being adjacent to each other, each of the adjacent pillar parts forming the second pocket having an inner diameter protrusion on an inner diameter side end to limit movement of a roller housed in the second pocket towards the inner diameter side, with an outer diameter side end of each of the adjacent pillar parts forming the second pocket configured so that the roller housed in the second pocket can move towards the outer diameter side.