What Removing commonly Rolling ?

Removing commonly Rolling What? Rolling demolition methods commonly used are: percussion method, pull out the method, pressing method, a thermal demolition method.
First, the percussion method
Striking force general increase in the bearing inner ring, the striking force should not be applied to the bearing rolling elements and cage, this method is simple, but easy to damage the bearing, when the bearing is located at the end of the shaft, with a diameter smaller than bearing copper or other soft metal material against the shaft, the lower bearing plus pad, hand hammer gently tapping, you can remove it. This method should be noted that the pad should be placed to the proper position, the focus should be correct.
Second, the pull-out method
Using a special puller, demolition, as long as the rotation of the handle, the bearing will be pulled out slowly. When removing the bearing outer ring, angled puller legs should open outward; when removing the bearing inner ring, the inner legs should puller card at the end face of the bearing inner ring.
Precautions:
1, the retractor shall puller hook bearing inner ring, and should not be hooked on the outer ring, in order to avoid excessive bearing looseness or damage;
2. When using puller, to make the screw shaft aligned center hole, can not skewed. It should also be noted retractors and bearing the forces, not to retractors and bearing damage;
3, pay attention to prevent slippage retractors;
4, puller legs are angled less than 90 °.
Third, the push method
With the press pushing bearing, smooth and reliable, does not damage the machine and bearings. Presses with manual push, mechanical or hydraulic presses push.
Note: The press should focus on the central axis of the press shall not be partial.
Fourth, hot split method
For removing tightly fitted bearing. First heated to about 100 ℃ with oiler oil pouring on to be demolished bearing until the bearing ring thermal expansion, you can use the bearing puller to pull out.
Precautions:
1. First, it should puller mounted on bearings to be demolished, and exert a certain tension;
2, before heating, use of asbestos rope or thin iron shaft wrapped to prevent heat shaft swell, it will be difficult demolition, dismantling the bearing bore bearings from the enclosure, the enclosure can only heat the bearing bore, can not be heated bearings;
3, poured oil, to oiler smoothly poured on the bearing rings or rolling elements, and set an oil basin below it, collect shed hot oil, to avoid waste and burns;
4, the operator should wear asbestos gloves to prevent burns.