Wen milling machine is an automatic machine tool that can process efficiently and has many functions. The bearing is a component of CNC machining center. Its main function is to support the rotation of the machine, reduce the friction coefficient during its movement and ensure its reversal accuracy. In this chapter, we mainly describe the methods for disassembling bearings.
1. Percussion
The intensity of the strike is combined with the inner ring of the bearing. This method is relatively simple, but it is easier to harm the bearing. When disassembling, place it on the underground object pad of the bearing, and then tap it with a hammer to remove the bearing.
2. Pull out method
Using a special puller, the bearing can be pulled out only by rotating the handle. In the meantime, it should be noted that the puller must be stuck on the end face of the bearing inner ring and the bend angle of the puller is less than 90°.
3. Push method
This method can be completed with a press, and it is relatively safe for the bearing, but it should be noted that the focus of the press should be placed on the center of the shaft.
4. Hot dismantling method
Pour a bearing oil pot of about 100° on top of the bearing, the principle of thermal expansion and contraction, the bearing will expand after being heated, and at this time, it can be pulled out by cooperation with a puller. Use this method to be smaller to avoid being scalded.
5. Induction heating method
This method is better. Inductive current occurs in the bearing ring, and then the bearing will heat up and expand, so that we can disassemble the spindle more conveniently.
