Patent ID: 8578610

Claim:
A method for manufacturing a fluid dynamic bearing device, comprising: configuring a bearing member and a shaft member such that an axial gap is formed between the bearing member and a first thrust bearing surface of the shaft member, the axial gap being substantially empty, then inserting the shaft member and the bearing member into a housing having an integrally formed bottom, while maintaining said axial gap between the bearing member and the first thrust bearing surface of the shaft member, and then fixing the bearing member to an inner circumference of the housing at the time point when a second thrust bearing surface of the shaft member makes contact with the bottom of the housing, wherein said axial gap between the bearing member and first thrust surface of the shaft member is equal to the sum of (i) a first thrust bearing gap between the bearing member and the first thrust bearing surface of the shaft member and (ii) a second thrust bearing gap between the second thrust bearing surface of the shaft member and the housing, in the fluid dynamic bearing device.