| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure that is able to improve fixing strength between a bearing holder and a mounting plate without relying on fastening margin for press fitting, in a motor including the bearing holder holding a bearing, and the mounting plate fixed on the radially outside of the bearing holder.SOLUTION: A motor includes, around a central shaft extending vertically: a bearing holder extending in a substantially cylindrical form in an axial direction; a bearing part fixed on the radially inside of the bearing holder; and a mounting plate fixed on the radially outside of the bearing holder and extending in a direction orthogonal to the central axis. The mounting plate includes: a disk-like part having a circular hole provided on the same axis as the central axis; and a bar ring part axially projecting from the edge of the circular hole. The outer peripheral surface of the bearing holder has a contact area, which is in contact with the bar ring part. The outer peripheral surface of the bearing holder or the surface of the mounting plate has, near the contact area, a rough part in which recess and projection are repeated at a pitch narrower than the width of the contact area. Therefore, fixing strength between the bearing holder and the mounting plate is improved by virtue of fine recesses and projections.SELECTED DRAWING: Figure 1 |
