Duplex-bearing motor of high frequency vibrator

The utility model discloses a duplex-bearing motor of a high frequency vibrator, which comprises a motor base, a stator and a motor, wherein the two ends of the rotor are supported through bearings mounted in end covers; the end covers are connected with the motor base in a sealing manner; the outer parts of the end covers are provided with shields; the outer sides of the bearings at the two ends of the rotor are respectively provided with an outer bearing; and the two sides of each bearing on the inner side of the motor are both provided with sealing devices. In the utility model, a duplex-bearing design is adopted, the two sides of each inner bearing are sealed by adopting oil proof rubber, so the connection of the inner bearings and the outside world is blocked, and the sealing performance is strengthened; each end cover is inwards provided with a circle of bulge along the inner wall of the motor base to form a seam allowance, so the sealing performance can be strengthened; and the combining parts of the s