Knockout for case bearing

The utility model discloses a box bearing puller, relating to a screw assembly composed of a screw and a flange; wherein, a handle is arranged in the inner hole at one end of the screw and perpendicular thereto; the flange is provided with a through hole sharing the identical bolt hole number and position with the box bearing end cover; plugs capable of circumferential rotation corresponding to the screw are arranged at the other end of the screw. The diameter of a plug is less than that of the outer housing of the disassembly bearing and is relative to the diameter of the bearing inner casing or a little bigger; the diameter of the other plug is relative to the diameter of the outer casing of the disassembly bearing and is a little smaller than the bearing hole. The utility model can be used for gently pressing out bearings from the box hole without any damage to the box. The utility model has the advantages of simple structure, compact design, convenient and fast operation, which is thus suitable for fieldwork/hands-on operation and is capable of meet the purpose of disassembly.