| 摘要 |
PROBLEM TO BE SOLVED: To provide an outer ring separation type angular ball bearing sized in 200 mm or more of outer diameter of outer ring in which a sufficient vacant space can be kept at a counter portion side of the outer ring, and in such an assembly condition that the outer ring is separated, a ball is prevented from falling out in a state in which the ball does not run up onto a counter portion of inner ring. SOLUTION: Between a plurality of pillar portions 4b extending from an annular portion 4a annually lined at a counter portion 1b side of the inner ring 1, a crown type retainer 4 made of resin in which a pocket 5 supporting the ball 3 is arranged is employed. The back side end face 4c of the annular portion 4a is made flat without depression, and the retainer 4 is prevented from projecting toward the counter portion 2b side of the outer ring 2. A sufficient vacant space can be kept at the counter portion 2b side of the outer ring 2, and the rigidity of the annular portion 4a of the crown type retainer 4 is improved simultaneously. Thus, in an assembly condition that the outer ring 2 is separated, the ball 3 is prevented from falling out in a state in which the ball 3 does not ride onto the counter portion 1b of the inner ring 1. COPYRIGHT: (C)2008,JPO&INPIT
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