-

How to disassemble the inner ring of cylindrical roller bearing


There are several ways to remove the inner ring of a cylindrical roller bearing, depending on the size and type of bearing and whether the bearing needs to be reused. Here are a few common disassembly methods:

Use a press. For small bearings, you can use a press to pull out the inner ring directly, but be careful to allow the inner ring to withstand the pulling force. You may need to use special pulling fixtures. These fixtures must be firmly stuck on the sides of the inner ring, and consider the shaft shoulder. size or research into machining grooves in the shoulder to allow for the use of a drawing jig.
Use oil pressure. For large bearings, the oil pressure method can be used. Oil pressure is added through the oil hole provided in the bearing to make it easier to pull out the inner ring. If the bearing width is large, the oil pressure method can be used in combination with a drawing fixture.
Use induction heating. This method is suitable for disassembling the inner ring of cylindrical roller bearings. By heating the local area in a short time, the inner ring is expanded and then pulled out. It is suitable for occasions where a large number of such bearing inner rings need to be installed.
Manual disassembly. For very small bearings, you can gently tap the side of the bearing ring with a suitable punch, or use a mechanical puller. The pull should be applied to the inner ring or adjacent components. If the shaft shoulder and housing bore shoulder are predetermined, Leaving a groove that can accommodate the puller's grip can simplify the disassembly process.

In addition, you need to pay attention to safety when disassembling and ensure that you use the correct tools and methods to avoid damage to the bearings or shafts. If you are not sure how to disassemble, it is recommended to do it under the guidance of experienced personnel.