The disassembly of cylindrical roller bearings is for regular maintenance, and the cylindrical roller bearings are replaced when they are replaced. After disassembly, if you continue to use it, or when you need to check the condition of the cylindrical roller bearing, the disassembly should be carried out as carefully as the installation. Be careful not to damage the parts of the bearing, especially the disassembly of the interference fit cylindrical roller bearing, which is difficult to operate. It is also very important to design and manufacture disassembly tools according to needs. When disassembling, study the disassembly method and sequence according to the drawings, and investigate the matching conditions of the cylindrical roller bearing to ensure that the disassembly operation is foolproof.　

Disassembly of the outer ring For the outer ring of the interference fit, several screws for the outer ring extrusion screw are set on the circumference of the shell in advance, and the screws are tightened evenly while being disassembled. These screw holes are usually covered with blind plugs and separable cylindrical roller bearings such as tapered roller bearings. Several cuts are set on the blocking shoulder of the shell. Use spacers to remove them with a press or gently tap them to remove them.　

The disassembly of the inner ring can be easily pulled out with a press. At this time, pay attention to let the inner ring bear its pulling force. Furthermore, the pull-out clamps shown are mostly used. Regardless of the clamps, they must be firmly clamped to the side of the inner ring. For this reason, it is necessary to consider the size of the shoulder of the shaft, or study the processing of the upper groove at the shoulder in order to use the drawing fixture.　

The inner ring of the large cylindrical roller bearing is disassembled by the hydraulic method. Oil pressure is applied through the oil hole provided in the cylindrical roller bearing to make it easy to draw. Cylindrical roller bearings with a large width are combined with the hydraulic method and drawing fixtures for disassembly operations.　

The inner ring of NU type and NJ type cylindrical roller bearings can be disassembled by induction heating method. It is a method to heat the part in a short time to expand the inner ring and then pull it out. Where a large number of such cylindrical roller bearing inner rings need to be installed, induction heating is also used.