6854-N SKF how to identify the quality of bearing  

                          
                         
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                    Packaging is clear: in general, are factory brand has its own specialized design personnel external packaging design, and arrange for clearance of the plant production conditions of production, so the packaging from the line to the blocks of color are very clear, unambiguous.
Seal the words are clear: in SKF bearing brand name will be printed on the label words, etc.. Font is very small, but it is mostly used plants Chupin stamping technology, but without the heat-treatment is carried out before the embossing, so the font is small, but the concave - deep, very clear. The font counterfeit products not only fuzzy, due to rough printing techniques, fonts, floating on the surface, and some even can be easily wiped off by hand.
If there is a noise: the left hand holding the SKF bearing inner sleeve, the right hand toggle coat make its rotation, listen to whether there are miscellaneous ring. As most of the backward condition of counterfeit products, completely hand workshop type operations, in the production process will inevitably impurity in the sand - a class, hidden in the SKF bearing the body, so the rotation will be issued when the noise. This is the largest and strictly execute machine operation production standards, and positive plants of different brands.
Whether there are muddy surface traces of oil: it should pay special attention to in the purchase of SKF bearings. Because of the current anti rust technology is not the special home, so the SKF bearing rust body is easy to leave a thick layer of oil stain, get in the hands of visco - stiff, and SKF bearing of foreign imported almost see the traces of rust preventive oil, pour is particularly careful experts said SKF bearing imports smell have a taste, is certainly the antirust oil, just impossible to see.
Chamfer is uniform: the so-called SKF bearing chamfer, also is the horizontal and the vertical surface junction, fake SKF bearings due to the constraints of production technology, processing satisfactorily in the corners of the site.