| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic pressure air bearing motor for high speed rotation in which balance is maintained precisely by highly precise balance correction in a short time (little manhour), a rotor apparatus mounting the motor, and a method for correcting balance of them. SOLUTION: Balance correcting spaces 22 and 23 are disposed on both the circumference on a cup bottom surface side of a cup type rotor constituting the dynamic pressure air bearing motor and the circumference on a cup aperture side which is isolated from the cup bottom surface, respectively. |
