Bearing sleeve

The utility model discloses a bearing sleeve which comprises a sleeve ring body and fixing blocks, the fixing blocks are arranged at the four corners in the sleeve ring body respectively, arc-shaped blocks are movably connected to the two sides of the outer portion of each fixing block in a sleeved mode respectively, springs are fixedly welded between the arc-shaped blocks and the sleeve ring body, and bead grooves are formed in the outer sides of the arc-shaped blocks. Steel balls are movably embedded in the ball grooves, and grooving rods are arranged at the four corners of the outer wall of the lantern ring body correspondingly. According to the bearing sleeve, the fixing blocks are arranged at the four corners of the interior of the sleeve ring body respectively, the connecting rod is shifted in the open groove in the front of the sleeve ring body, the fixing blocks welded with the connecting rod are guided to be attached to the inner wall of the bearing, the arc-shaped blocks connected with the two sides