How is the fixed bearing installed?
1. Before installing the bearing on the shaft, you must first unplug the fixing pin that fixes the bearing jacket, and at the same time, the surface of the journal is polished, lubricated and clean, and the journal is oiled to prevent rust and smooth (allow the bearing to rotate slightly on the shaft) .
2. Apply smooth oil to the mating surface of the bearing seat and the bearing, and install the double-row tapered roller bearing into the bearing seat. Then put the assembled bearing on the shaft together with the bearing seat, and push to the desired position to stop the device.
3. Do not tighten the bolts that fix the bearing seat, and make the bearing housing rotate in the bearing seat. Also install the bearing and seat on the other end of the same shaft, rotate the shaft a few times, and let the fixed bearing automatically correct its position. Then tighten the bearing seat bolts.
4. Install eccentric sleeve. First put the eccentric sleeve on the eccentric step of the bearing inner sleeve, and tighten it by hand in the direction of rotation of the shaft. Then insert the small iron rod into or against the counterbore on the eccentric sleeve. Knock the small iron rod along the axis of rotation with a hand hammer. Make the eccentric sleeve device strong, and finally tighten the hexagon socket screws on the eccentric sleeve.
Note:
In the two-way limit support, the inner ring of the bearing is on the shaft, and the outer ring in the bearing seat hole must be axially fastened in both directions. In the unidirectional limit support, it is necessary to apply unidirectional axial tightening to the inner and outer ring in the opposite direction of the force transmission.
If a non-separable bearing is used as a floating support, only the inner ring is fastened to the shaft axially in both directions, the outer ring is free to move axially in relation to the seat hole, and the inner ring and the outer ring are separable centripetal When the bearing is used for floating support, both the inner and outer rings need to be axially fastened on the shaft and in the seat hole in both directions, and the inner and outer rings of the bearing move in the relative axial direction.
The axial positioning of the bearing is usually the shoulder positioning of the inner ring and the shoulder positioning of the bearing housing hole for the outer ring.
In order to ensure the positioning effect of the shaft shoulder and the retaining shoulder, the shaft shoulder and the retaining shoulder should be closely attached to the end surface of the bearing inner and outer ring. The height of the shaft shoulder and the retaining shoulder should also be selected according to the standard. The fixing method of the inner and outer rings of the bearing should correspond to the size of the transmission force.
How are ordinary fixed bearings installed and positioned?
