Correct installation and removal cylindrical bore bearings to the heart

How to correctly install the demolition of cylindrical bore bearings to the heart:
1. Install: Usually, the outer ring can not be separated to the heart bearings, inner ring and the shaft often with a more compact; outer ring and the seat is a more loose with the hole. At this point the pressure will be available first press installed in the shaft bearings, and then loaded with bearing housings with coaxial holes. Press-fit sleeve assembly used with a soft metal such as copper or mild steel can. Sleeve diameter slightly larger than the shaft diameter, outer diameter slightly smaller than the bearing inner ring ribs.
Into the shaft and the bearing seat to the same time when the hole in the sleeve and bearings plus one between the face plate. Its diameter slightly larger than the shaft diameter, outer diameter slightly smaller than the bearing diameter. Its role is to prevent the bearing outer ring deflection hole here or get stuck. Sleeve on the exerted pressure can be mechanical, but also hydraulic. But they are not directly face the hammer ring. Because the rings are hardened thin parts, hammer easy to produce surface cracks.
2. Heating installation: Installation of interference rings and bearings needed to increase the force size and with the size of the amount of interference. For a large amount of interference, the large bearings, often used method of heating installation. Hot charging into the tank even before bearing heated to 80 ℃ ~ 100 ℃, and then remove from the oil installation in the shaft.
Heating should not be on the bottom of bearing to prevent the precipitation of impurities into the bearing. And should strictly control the oil temperature must not exceed 100 ℃. Batch size can also be used under the bearing of other heating methods, such as induction heaters, electric panels and electric stove, etc..
3. Demolition: Demolition of the inner ring and shaft with a tight, loose outer ring and the seat hole can not be separated with the bearing, the first shaft with the bearing out from the bearing hole, and then remove the bearing from the shaft. Removal can be divided into inner and outer bearings, the first axis together with the inner ring removed, then remove the inner ring from the shaft; outer split out from the bearing hole. Remove the bearing from the shaft or bearing inner ring shaft removed from the press are available. Screw mechanism can also be used. When the outer ring with the tight holes here, the available pressure institutions to pressure the outer ring.
Install thrust bearing should be tested ring and shaft centerline axis verticality. Method is to dial gauge fixed on the end of shell to head contact table bearing axis in the rotating bearing ring raceway on top, side observation dial gauge pointer, if the pointer deflection, indicating ring and shaft centerline axis is not vertical. Tank shell hole deeper, may also lengthen the micrometer head with a test.
Thrust bearing is installed correctly, its seat that automatically adapts to the rolling ball, to ensure that rolling circle in the upper and lower raceway. If installed backwards, bearing not only does not work correctly, and each side will be met with severe wear. As the shaft ring and seat ring and the difference is not very clear, the assembly should be careful not to mistake. In addition, the thrust bearing and bearing seat hole should be left between the 0.2-0.5mm gap, to compensate for machining, installation errors caused by inaccurate, when in operation bearing ring center bias, this gap to ensure its automatic adjustment, avoid touching the friction, so that normal operation. Otherwise, it will cause severe damage bearings.

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