The quality of imported bearings is too loud when rotating , Because if the imported bearing makes a lot of noise, it can prove that the internal gap is too large, which will shorten the life of itself in the case of application, and it is very easy to enter the wind and sand, and there is also an imported bearing. The sound is due to The sound of the motor rotor from the internal roller bearing can prove that its concentricity is insufficient. When such imported bearings are used, of course, their service life will also be reduced. Many people use imported bearings. After a short period of time, a loose situation occurs, that is, the sound of the products purchased by oneself is very loud. When imported bearings are in operation, they will encounter many different problems. For example, the running speed is very slow, this problem can be solved with grease, and there is too much rotating noise, which is most likely due to the unreliable specifications and models of imported bearings. If customers find some problems in the whole process of application, they can establish contact with the official online customer service in time.