SKF Bearing: View of the Appearance

Source: China Bearing Network Time: 2013-06-28

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The inspection of SKF bearings should be carried out under astigmatism; carefully survey the surface, cracks and other parts of the bearing.
1, all kinds of mechanical scars; such as abrasion; scratches, crushes, bumps, etc.; will form a bad bearing device; incurs the eccentric load and stress gathering; the formation of rotation accuracy and the use of life reduction.
2, the riveting or welding quality of the cage; the first investigation of whether the rivet head can be biased, tilted, slack, lack of meat; the orientation of the welding can be correct; the welding point is too large. The crab is attached to the hard and sturdyé¹‚ã„—"é¾†é€‘çª’. The above items are some of the points in our view of SKF bearings; in addition to some of the above-mentioned views; others such as poor typing quality; such as ambiguous and damaged handwriting; should be considered as defective; severe Can also not be tested.
3, various cracks; such as the original data crack; casting cracks, heat treatment cracks and grinding cracks; these cracks in the future bearing operation; will become the source of stress gathering and agile expansion; the formation of bearing break; bearing life And the safety of the work has a great impact. In fact; the bearings for important uses; the bearing factory has 100% magnetic or radiographic inspection of its components.
4, rust, black skin and pitting; the latter two are the shortcomings of simple storage of water and dirt; the simplest to develop rust. And rust is the source of pollution, causing equipment, early wear and fatigue; severe corrosion will cause bearings Obsolete.
5, peeling and folding; the two shortcomings are not well connected with the base metal; and there are often different degrees of decarburization or carbon deficient appearance; the data simply collapse, underdentation or wear; bearing life and The accuracy is very arrogant.

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