How to distinguish the quality of the bearing

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How to distinguish the quality of the bearing

Source: China Bearing Network Time: 2018-04-16
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The first thing to judge is whether the outer packaging of the bearing can be clear: whether the indication of the packaging can be clarified; usually, the brand of the factory has a special depiction of the external packaging; it should be distinguished by careful observation; The factories with production conditions are manufactured and manufactured; therefore, the packaging is very clear from line to color; unambiguous. Some manufacturers also have some special identifiers; so pay attention to and listen to the bearings. Grasp the inner sleeve of the bearing; turn the outer sleeve to make it rotate; listen to whether it can have a strange noise. This is the biggest difference between the manufacturer and the factory-operated brand. The production conditions of most counterfeit products. Behind; thoroughly craft workshop-style operation; in the process of production will inevitably be mixed with sand and other impurities; hidden in the bearing body; so the rotation will announce the noise when the rotation. Next, see if the appearance can have dirty oil traces; Pay special attention to the bearing.
At present, the domestic anti-rust skills are not mature; therefore, when the anti-rust treatment of the bearing body is very simple, it leaves a thick trace of oil; and the original imported bearings can hardly see the traces of anti-rust oil; if you are an expert; Smell the smell of the bearing; can also smell the anti-rust oil; just can't see it. Finally, see if the chamfer can be even; that is, the intersection of the horizontal and the vertical; the impersonation bearing is bound by the production skills; there is no high-tech The device; so it will be poorly handled at these corners; it is not difficult to see carefully.
Then you should check whether the steel stamp can be clarified; the brand name, label, etc. will be printed on the bearing body. The font is very. Qin 銎 銎 銎 銎 褂 褂 褂 〖 〖 酰 酰 酰 酰 酰 酰 酰 酰 谖淳 谖淳 棺 棺 棺 棺 棺 棺 棺It is very ambiguous. If it is a product, its font is very vague; because the printing skills are rough; the font is floating on the outside; some can even be easily wiped off with a wet cloth or hand.
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