| 摘要 |
<p>An inward protruding portion (21) that extends further radially inward than an axially outer end of a small-diameter-side raceway surface (12a) of an outer ring is formed on a small-diameter-side end portion of the outer ring (12) so as not to contact small-diameter-side balls. In this way, it is possible to individually set the diameter of an axially outer end of the small-diameter-side raceway surface that defines the pitch diameter of ball set on a small-diameter side and the diameter of the inward protruding portion that serves as an engaged portion at the time of removal of the outer ring.</p> |
