Cool disassembly device of motor bearing

A cool disassembly device of a motor bearing has a supporting seat. A bearing disassembly mechanism is connected onto a supporting seat top plate through supporting rods. The bearing disassembly mechanism includes a bearing operating board, a cross beam and a pressing rod in threaded connection with the cross beam. The cross beam is connected with the bearing operating board through pull rods. Grooves are disposed in corresponding positions on one side of the supporting seat top plate and one side of the bearing operating board, the width of each groove being smaller to the outer diameter of the inner ring of a to-be-disassembled bearing. A handle is disposed at the upper end of the pressing rod. With the use of the cool disassembly device, a bearing and a rotor can be rapidly disassembled without being heated, and are prevented from being damaged.