Patent ID: 6836040
Filing Date: 2004-12-28
Classification: F16C,G11B,H02K

Abstract:
A spindle motor comprising:a spindle; a rotating disk portion rotatable integrally with said spindle; and a hydraulic bearing, formed in a motor base, for rotatably supporting said rotating disk portion; wherein an escape portion is provided for preventing said rotating disk portion from being brought into contact with an inner wall surface of said hydraulic bearing when said spindle is tilted with respect to said motor base at a specific angle or less, the specific angle being within a range of the tilted angle when an outer peripheral corner of a rotor of the spindle motor touches a stator of the spindle motor, wherein said escape portion is configured as a recess formed in the inner wall surface of said hydraulic bearing at a position facing an edge of an outer periphery of said rotating disk portion.