Due to the radial and axial internal clearance of bearings there is a clear relationship between, so you only need to specify a number. Axial internal clearance is generally specified. And then you can from the zero clearance status access to the specified value: loosen or tighten the nut on the shaft or in the housing bore by Spiro, or insert the calibration between the bearing ring and the bearing washer or gasket. Used to adjust the clearance and practical ways of measuring sets clearance, the size of the number depends on the bearing to be installed.
And unlike other cylindrical aperture to the bearing, the bearing internal clearance, only when adjusting one bearing against another bearing in order to establish. Usually these bearings are two bearings arranged back-to-back or face-to-face, one of the bearing rings for axial displacement, until they reach a selection of clearance or preload. Selection of clearance or preload, depending on the demands on the performance and the operating conditions of the bearing arrangement.
To achieve proper clearance values at install time, depending on the bearing load and temperature conditions have been determined. Depending on the bearing size and layout, manufacturing of the shaft and housing materials as well as the distance between the two bearings, installation of initial clearance obtained in actual operation may be smaller or larger. For example, the temperature difference between inner and outer rings of thermal expansion will cause a narrowing of the gap in the Middle run, the initial clearance must be quite large in order to avoid deformation of the bearing and its adverse consequences.
One way is to use dial table mounted on wheels, check the set axial clearance of the bearing arrangement. It is important, when you adjust the bearings and measuring the clearance, required in various directions of shaft or housing rotation for several weeks, to ensure that the ball ends with guide flange on the inner ring of the Department have the appropriate contact. If exposed properly, the measurement results are not accurate, you cannot achieve the desired adjustment

 


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