Motor

A motor comprising:

• a stationary portion;
• and
• a rotating portion that is rotatably supported by the stationary portion centered on a central axis extending upward and downward,
• wherein the stationary portion includes
• a cylindrical bearing housing that extends in an axial direction around the central axis, and
• a stator that is disposed on an outside of the bearing housing in a radial direction,
• wherein the stator includes
• a stator core that is a magnetic body,
• an insulator that is an insulating body covering at least a part of the stator core, and
• a conductor that is wound around the stator core via the insulator,
• wherein the bearing housing includes
• a first inner peripheral surface that holds a bearing, and
• a first outer peripheral surface that is in contact with the insulator directly or via an adhesive, and
• wherein a surface roughness of the first outer peripheral surface is greater than a surface roughness of the first inner peripheral surface.