Bearing Quality Identification
Jun 19, 2020
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Here are a few common ways to identify bearing quality:
1. Whether there is turbid oil on the surface
Because the current domestic anti-rust technology is not particularly home, so the bearing body for rust-proof treatment is easy to leave a thick oil, take on the hands is very sticky, and foreign original imported bearings can hardly see traces of rust oil, but particularly careful experts said imported bearings smell a taste, is certainly under rust-proof oil, just can not see it. This should be done with special care when purchasing imported bearings.
2, whether the steel print is clear
The bearing body will be printed with brand words, labels, etc. The font is very small, but most of the products use steel printing technology, and before the overheating processing of the word, so the font is small, but deep, very clear. And the counterfeit product's font is more fuzzy, because the printing technology is rough, the font floats on the surface, some even easily can be erased by hand.
3, whether the outer packaging is clear
In general, the factory brand has its own special designerexternal packaging design, and arrange production conditions to pass the factory production and production, so packaging from the line to color block is very clear, unambiguous. (Some imported bearing brands also have unique designs designed specifically to protect their intellectual property rights on the packaging of accessories for imported bearing brands.)
4, whether there is noise
Hold the bearing inner sleeve with your left hand, and turn the coat in the right hand to rotate to hear if it has a noise. Because most of the production conditions of counterfeit products backward, completely manual workshop-style operation, in the production process will inevitably be mixed with sand and other impurities, hidden in the bearing body, so in rotation will emit noise. This is the biggest difference between strict lying with production standards and a genuine plant brand operated with machines.
5, chamfer is uniform
The so-called chamfer of bearings, that is, the cross-face and vertical side of the junction, counterfeit bearings due to the limitations of production technology, in these corner of the corner of the part of the treatment is not satisfactory.
