Rotating motor and fan

A fan comprising:

• a rotating motor;
• and
• an impeller mounted on a rotating shaft of the rotating motor,
• wherein the rotating motor comprises a stator, a rotor and a supporting frame;
• wherein:
• the rotor comprises the rotating shaft, a permanent magnet mounted on the rotating shaft, and a first bearing and a second bearing respectively mounted on two ends of the rotating shaft, wherein the first bearing and the second bearing are respectively located at two ends of the permanent magnet;
• the stator comprises a stator yoke sleeved on the supporting frame, a plurality of stator teeth arranged on the stator yoke, and coils respectively wound on the stator teeth;
• the supporting frame comprises a first bearing seat, a second bearing seat, and a plurality of support rods supporting the stator yoke;
• two ends of each support rod are respectively connected to the first bearing seat and the second bearing seat, and an interval space is provided between two adjacent support rods and configured to place the stator teeth;
• and
• the first bearing is mounted in the first bearing seat, the second bearing is mounted in the second bearing seat, an outer diameter of the permanent magnet is larger than or equal to an outer diameter of the second bearing, and an outer diameter of the first bearing is larger than or equal to the outer diameter of the permanent magnet.