| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem in a tandem type double-row ball bearing, in which there is a difficulty to adjust a contact angle of ball in adequate values on respective rows in spite of differences for dimensional tolerance on each row. <P>SOLUTION: A contact angleθ2 of a group of balls 16 at a small diameter raceway side in a second assembled unit 22 is set to select the second assembled unit 22 which becomes suitable for a contact angleθ1 of a group of balls 15 at a large diameter raceway side in a first assembled unit 21. Thus, management for setting respective contact anglesθ1 andθ2 of a group of balls 16 at a large diameter raceway side and a group of balls 15 at a small diameter raceway side as an appropriate value is facilitated in case that a nut 42 is screwed on a screw thread 40 of a shaft portion 9. <P>COPYRIGHT: (C)2004,JPO</p> |
