Patent ID: 9058833
Filing Date: 2015-06-16
Classification: F16C,G11B,H02K

Abstract:
1. A spindle motor for use in a disk drive apparatus to drive a disk, the disk drive apparatus including a housing defining an interior space, the spindle motor comprising: a stationary portion including a shaft which extends in an axial direction; a base portion configured to define a portion of the housing, and including a through hole into which the shaft is inserted; and a rotating portion configured to rotate about a central axis with respect to the stationary portion through a bearing mechanism; wherein the shaft includes: an upper portion of the hole portion includes a screw hole portion including a screw thread; a minimum diameter of the screw thread is greater than an inside diameter of the hole portion; a sealing member is positioned between the screw hole portion and the first connection channel; and the interior space, the second connection channel, the hole portion, and the first connection channel together define a continuous space.