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Determination of interference cooperation
Source: China Bearing Network Time: 2013-02-01
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There are many different ways to measure the excess.
1. Use the feeler gauge to measure the reduction of the clearance.
2. 2. Determine the tightening angle of the nut.
3. Measuring the axial push interval.
4. Measuring a large amount of inner ring expansion.
Use the feeler gauge to measure the clearance before and after the bearing device; the method of measuring the radial internal clearance with the feeler gauge is suitable for large and medium spherical and CARB bearings. The best is to measure the clearance between the outer ring and the unloaded roller. .
Measuring the tightening angle of the nut to determine the tightening angle of the nut is a proven and useful method; it can be used to determine the correct interference of the small and medium-sized bearings on the tapered journal. The guidance value of the tightening angle a is now established; For the positioning of the bearing on the conical journal.
Measuring the axially pushing the spacer tapered bore bearing; can be measured by the pushing interval s of the measuring inner ring on the journal. The guiding value of the axial pushing interval; see some related products.
However, the more appropriate approach to this situation is the “SKF Push Method.†This device approach provides a robust and concise way of determining the amount of interference. The axial displacement of the bearing is controlled relative to the intended orientation; Cooperation. This method uses a hydraulic nut equipped with a dial gauge; and a uniquely calibrated digital metering device on a specially selected oil pump. The necessary oil pressure and the axial displacement of a single bearing; these determined values ​​can be considered as bearings Arbitrarily positioned.
Measuring the inner ring bulge a large amount of expansion through the inner ring of the measurement; can accurately and very accurately determine the correct orientation of the large type of spherical surface and CARB bearing on the journal.
For such measurements; SensorMount? is now available; it uses a sensor integrated with the inner ring of the bearing, a special hand-held indicator and general hydraulics. Bearing size, shaft finish, data or depiction - solid still hollow The problem; no need to consider.
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