Patent ID: 8826541

Claim:
A method for manufacturing a fluid bearing device, the fluid bearing device including a housing, a bearing sleeve having an inner peripheral surface, a shaft member having an outer peripheral surface, and being arranged to rotate relative to the bearing sleeve, a radial bearing portion supporting the shaft member radially in a non-contact fashion with an oil film formed in a radial bearing clearance between the inner peripheral surface of the bearing sleeve and the outer peripheral surface of the shaft member, and a second member, said method comprising: providing a smooth surface and a roughened surface at a molding surface of a mold; forming the housing by a molding process using the mold; releasing an adhesion portion of the housing molded by the roughened molding surface of the mold from the roughened molding surface of the mold after the forming of the housing by the molding process; forming the second member of metal; securing the bearing sleeve in position inside the housing; and fixing the second member by adhesion to the adhesion portion of the housing, wherein the adhesion portion of the housing has a surface roughness of 0.5 μmRa or more.