Forming Method of Dynamic Pressure Generating Portion and Fluid Dynamic Bearing Device

摘要

The present invention aims to make it possible to form a dynamic pressure generating portion by a simple process with high accuracy at a low cost. In order to achieve the object, in the present invention the dynamic pressure generating portion A is formed by the step of supplying a small amount of an ink 12 onto a surface of a material 2 a' to print the dynamic pressure generating portion A for generating a dynamic pressure of fluid in a bearing gap with an aggregate of the ink, and the step of hardening the ink 12.