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NSK tapered bore bearing assembly skills
Source: China Bearing Network Time: 2013-03-11
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Large-scale spherical roller bearing multi-purpose hydraulic device; Figure 6 is the use of hydraulic nut pressed into the adapter device. Figure 7 is to set the oil hole on the adapter sleeve; while the high-pressure oil is sent to the cooperation surface; The method of pressing into the tight sleeve device.
Check the reduction of the radial clearance; carry out the device. Use the feeler gauge to measure the clearance; as shown in Figure 8; measure the two rows of clearance together; to be a flat value.
The scale of the bearing increases; when the device is on the shaft; the elliptical deformation occurs due to the outer ring of the self-weight; if the clearance is measured at the lowermost part of the deformed bearing; the measured number will be larger than the practice clearance; the radial clearance with this fault; According to the general specification of Table 1, the interference will be too large; or the actual device clearance is too small. Therefore, as shown in Figure 9; the horizontal two lateral clearances a, b and the lowermost clearance Half of the sum of c as a play.
When the self-aligning ball bearing is used to fix the sleeve device to the shaft; make sure that the outer ring can be sensitive and aligning; the clearance behind the device should not be too small.
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