Arrange ushering bearing inner ring and shaft adopts the clearance fit

Arrange ushering bearing installation when choosing to cooperate with the outer ring of the self-contained bearing hole of unfavorable use interference fit, the inner ring with the matching of the journal also shoulds not be too tight, general with both hands to push bearing just into the journal and the bearing seat is more appropriate. Cone bearing installation of the most important is to adjust the axial clearance. Generally available on the journal of the adjusting nut, adjusting shim and bearing hole of the thread or adjust preload spring etc. Axial clearance size, the layout of the bearing installation and, the distance between bearings, shaft and bearing material, can be determined according to the working conditions. For high load high speed arrange ushering bearing, adjust clearance, must consider the effect of temperature on the axial clearance, reducing temperature rise caused by clearance volume estimation, that is to say, the axial clearance to properly adjust a bit bigger. For low speed and vibration of the bearing, no clearance installation, should be taken to make arrange ushering the roller and raceway of bearing contact, evenly distributed load. After adjustment, the size of the axial clearance measured with a dial indicator. Method is to dial gauge fixed on the fuselage or bearing seat, to enable dial gauge contact bearing is bright and clean surface, along the axial about driving shaft, the clock pendulum momentum is the largest of the axial clearance. With contact Angle of the axial clearance of the bearing adjustment is the adjustment of the pre-tightening force. When installing the bearing should also pay attention to the bulk of the tapered roller end face and inner ring guard good contacts.