| 摘要 |
The present invention provides a dynamic pressure-type thrust bearing unit which is excellent in abrasion resistance and also has accurate dynamic pressure-generating grooves through easy manufacturing processes. According to a method for manufacturing a dynamic pressure-type thrust bearing unit of the present invention, dynamic pressure-generating grooves (2) are formed on a surface (1a) of a thrust plate (1). The dynamic pressure-generating grooves (2) are formed by pressing with a pattern which produces a width ratio of approximately 1:1 between groove portions (12) and non-groove portions (13) in the direction of arrangement of the adjacent dynamic pressure-generating grooves (2) [in the direction of arrow A].
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