| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a rolling element retainer which suppresses swelling of a bead toward the end part on the pocket side of a butt surface while suppressing an increase in the manufacturing cost of the rolling element retainer. Ž<P>SOLUTION: A ceramic bead prevention tool 5 is inserted into a pocket 11 of a strip-shaped, cylindrically formed metallic material. The length of the ceramic bead prevention tool 5 in the axial direction is equal to or slightly smaller than the length of the pocket in the axial direction of the rolling element retainer. When an axial displacement is generated on the butt surface 14 and an edge part of one of both end surfaces is projected toward the pocket side, the edge parts of both end surfaces projected toward the pocket side are pushed outside by inserting the ceramic bead prevention tool 5, and the axial displacement between both end surfaces is corrected. The butt surface 14 is welded with the ceramic bead prevention tool 5 inserted. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
