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Positioning of the bearing inner ring When installing the bearing inner ring

Abstract: Commonly used positioning method of bearing ring. 1. Positioning of the bearing inner ring When installing the bearing inner ring on the shaft, the bearing is generally fixed on one side by the shaft shoulder, while the other side is fixed with a nut, a stop washer or a spring ring.

The dimensions of the contact part of the shaft shoulder and the axial fixed parts with the inner ring of the bearing can be determined according to the installation dimensions of the various bearings listed in the bearing size table. (1) Nut positioning When the bearing speed is high and bearing a large axial load, the end face of the nut and the inner ring of the bearing should be perpendicular to the rotation center line of the shaft.

Otherwise, even if the nut is tightened, the installation position of the bearing and the normal working condition of the bearing will be damaged, and the rotation accuracy and service life of the bearing will be reduced. Especially when the fit between the inner bore of the bearing and the shaft is loose fit, strict control is required. In order to prevent the nut from loosening during rotation, appropriate technical measures must be taken to prevent loosening.

Use the nut and the China Mechanical Ball Bearing factory washer to locate, put the inner key teeth of the stop washer into the keyway of the shaft, and then bend one of the teeth on the outer ring into the notch of the nut. (2) Spring retainer ring positioning When the bearing is not under axial load, the speed is not high, the shaft is short and it is difficult to process the thread on the journal, the elastic retainer ring with rectangular section can be used for positioning. This method is convenient for loading and unloading, occupies a small space, and is simple to manufacture. (3)

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