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Several common ways to distinguish bearing quality

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Whether the outer packaging can be clear: Under normal circumstances; the factory brand has a special depiction of the external packaging; and the factory that produces the production conditions is manufactured; therefore, the packaging is very clear from line to color; vague.
Can the steel printing be clear: the brand name, label, etc. will be printed on the bearing body. The font is very. Qin 銎 銎 銎 褂 褂 褂 褂 〖 〖 酰 酰 酰 〖 谖淳 谖淳 碇熬 碇熬 碇熬 碇熬 碇熬 碇熬 碇熬 棺 棺 棺 棺 棺 棺 棺 棺 棺 棺 棺嫉. The front 嫉 睿 睿 环 环 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而
Can there be noise: the left hand grasps the inner sleeve of the bearing; the right hand pushes the outer sleeve to make it rotate; listen to whether it can have noise, because the production conditions of most counterfeit products are backward; thorough craft workshop operation; inevitably in the production process It will be mixed with impurities such as sand; it will be hidden in the bearing body; therefore, the noise will be announced during the rotation. This is the biggest difference between the strict implementation of the production specifications and the operation of the factory brand.
Whether the appearance of dirty oil traces: This should be uniquely noted when purchasing imported bearings. Because the current domestic anti-rust skills are not unique to the home; so the rust-proof treatment of the bearing body is very simple to leave a thick trace of oil; It is sticky and sticky on the hand; the bearings imported from foreign countries can hardly see the traces of anti-rust oil; but it is a unique and careful expert that the imported bearings smell a smell; it is definitely anti-rust oil; I can't see it.
Whether the chamfer can be even: the chamfer of the bearing; that is, the intersection of the horizontal and the vertical; the counterfeit bearing is restrained by the production skill; the position of the corners is not satisfactory.

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