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Skeleton oil seal specification

2019-07-01

It is no exaggeration to call a bearing a joint of a car. In a car, not only the wheels need to use bearings, but all the machine parts that will change are indispensable for the participation of the bearings. It is a very inconspicuous but very serious thing in the transmission system. Because of the large amount of work, its wear is also relatively high, so replacing the bearing is a common job in car repair. Here are a few common ways to distinguish between bearing quality:

Whether the outer packaging is 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, so the packaging is clear from the line to the color block. . Some imported brands also have a common depiction on their own packaging to protect their intellectual property, which will be continuously analyzed in the future.
Whether the steel printing is clear: brand words, labels, etc. will be printed on the bearing body. The font is very clear. The fonts of counterfeit products are not only vague, because the printing skills are rough, the fonts float on the surface, and some can even be easily erased by hand.
Is there any noise: hold the inner sleeve of the bearing with your left hand, and turn the outer sleeve with your right hand to make it rotate to hear if there is any noise. Because the production conditions of some counterfeit products are backward, and the hands-on operation is completely carried out, it is inevitable that impurities such as sand will be incorporated into the bearing body during the production process, so the noise will be announced during the rotation. This is the biggest difference between a factory brand that strictly enforces production specifications and operates with machines.
Whether there is dirty oil on the outside: this should be taken together when purchasing imported bearings. Because the current domestic anti-rust skills are not shared at home, it is very simple to leave a thick oil trace on the anti-rust treatment of the bearing body. It is sticky on the hand, and the bearings imported from abroad are hard to see. To the traces of anti-rust oil, but the common careful expert said that the imported bearings smelled a taste, it must be under the anti-rust oil, just can't see it.
Whether the chamfer is uniform: the so-called chamfer of the bearing, that is, the intersection of the horizontal and the vertical, the counterfeit bearing is unsatisfactory in the corners of these corners because of the constraints of production skills.

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Moore Liu

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