主权项 |
1. A method for producing a fluid dynamic bearing apparatus comprising a shaft member, a bracket, and a radial bearing portion which rotatably supports the shaft member in the radial direction by a fluid film formed in a radial bearing gap, and an adhesion fixing face which is adhesively fixed to the inner circumferential surface of the bracket,
the method comprising the steps of: forming a component having the adhesion fixing face and the bracket from materials having different linear expansion coefficients so that a value, obtained by dividing a linear expansion coefficient of the housing by a linear expansion coefficient of the bracket, is not lower than 0.5 but not higher than 2.0, defining an adhesion gap between the adhesion fixing face and the inner circumferential surface of the bracket by providing the component having the adhesion fixing face on an inner periphery of the bracket, filling the adhesion gap with an adhesive which is cured with heating, and fixing the component having the adhesion fixing face on the inner periphery of the bracket by curing the adhesive. |