Dismantling Method of Needle Roller Bearing
Source:Sheng Wei networkAuthor:admin Addtime:2019/10/08 Click:
1. The percussion force is usually applied to the inner ring of the bearing. The percussion force of the shielding room should not be applied to the rolling element and cage of the bearing. This method is simple and easy to do, but it can easily damage the bearing. When the bearing is located at the end of the shaft, the copper rod or other soft metal material smaller than the inner diameter of the bearing is used to hold the end of the shaft. The lower part of the bearing is padded with a lightly tapping hammer, and the bearing can be removed. The application of this method should pay attention to the proper placement of cushion blocks and the correct focus.
2. Hot disassembly method is used to disassemble tightly matched bearings. First, the oil heated to about 100 degrees Celsius is poured into the bearing to be dismantled in an oil pot. After the bearing ring is heated and expanded, the bearing can be pulled out with a pulling tool.Deep groove ball bearing
3. Pushing the bearing with a press, which works smoothly and reliably without damaging the machine and the bearing shielding room. Press has manual push, mechanical or hydraulic press push.
Notes: Press should focus on the center of the shaft, not bias.
4. Pull-out method uses special pulling tools. When disassembled, as long as the handle is rotated, the bearing will be pulled out slowly. When the outer ring of bearing is disassembled, the bending angle of the two feet of the pulling tool should be opened outward; when the inner ring of bearing is disassembled, the two feet of the pulling tool should be inward and clamped on the end face of the inner ring of bearing.