| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a structure capable of reducing damage of a cage 7 or first and second folded vertical walls 13b and 14b, even when the first and second folded vertical walls 13b and 14b contact with both inner-outer peripheral edge parts of this cage 7a, by easily providing a structure of making the cage 7a and first and second races 8b and 9b nonseparable. <P>SOLUTION: Both inner-outer peripheral edge parts of the cage 7a and the first and second folded vertical walls 13b and 14b are made closely adjacent. Both inner-outer peripheral edges of this cage 7a and first and second locking parts 15 and 16 are respectively engaged. This cage 7a is made of a synthetic resin. The problem can be solved by these constitutions. <P>COPYRIGHT: (C)2007,JPO&INPIT |
