| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic-pressure bearing motor which can improve the processing work efficiency and reduce manufacturing cost, by minimizing the processing to a bearing sleeve. SOLUTION: This is a dynamic-pressure bearing motor which possesses a fixed member 102, a rotor hub 104, and a dynamic-pressure bearing means 106 interposed between these. The dynamic-pressure bearing means 106 is equipped with a shaft member 120, a bearing sleeve 122, and radial dynamic- pressure fluid bearing means 150 and 152. A bearing path 182 and a ventilation space 184 are provided in relation to the radial dynamic-pressure fluid bearings 150 and 152 in a pair, and a main body 108 of a fixing member is provided with a communication groove 188, which leads the breath path 182 to the inside of a motor, a communication groove 190 which leads the ventilation space 184 to the inside of the motor, and a through-hole 192.
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