| 摘要 |
<p>An inner ring raceway surface (21) and an outer ring raceway surface (31) have irregularly shaped raceway surfaces (2k, 3k). When inner and outer rings (2, 3) are rotated relative to each other, the raceway surfaces (2k, 3k) gradually reduces holding intervals of the rollers (4) while allowing the rollers (4) to rotate and apply rotational urging force to the inner and outer rings (2, 3) in the direction in which a phase difference caused by the relative rotation is cancelled.</p> |
