Auxiliary device for adjusting concentricity of carrier roller

The utility model discloses a carrier roller concentricity adjusting auxiliary device, and particularly relates to the technical field of carrier rollers, the carrier roller concentricity adjusting auxiliary device comprises a roller body, a bearing seat is arranged on the outer surface of the roller body, a bearing body is arranged in the bearing seat, and a fixing device is arranged on the outer surface of the bearing seat. The fixing device comprises a first thread groove formed in the inner wall of the roller body, a second thread groove is formed in the outer surface of the bearing seat, and the thread size of the first thread groove is matched with that of the second thread groove. When the bearing seat is installed, the bearing seat is inserted into the inner wall of the roller body, so that the second thread groove in the outer surface of the bearing seat is located at the first thread groove in the inner wall of the roller body, and then the bearing seat is rotated to be connected with the roller bod