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Method of good or bad unidirectional bearing

Method of good or bad unidirectional bearing


How should we identify numerous one-way bearings?I would like to introduce to you:

Whether the packaging is clear: in general, the brand has its own special designers to design the external packaging, and arrange the production conditions of the factory for production, so the packaging is very clear from the line to the color block, no matter.(Some unidirectional accessories also have special designs to protect their intellectual property rights, which will be described in detail in the future).

Whether the steel print is clear: the bearing body will be printed with brand words, label, etc.The fonts are very small, but they are mostly staked and pressed before they are overheated, so they are small but deep and very clear.The typefaces of counterfeit products are not only blurry, they float on the surface due to the rough printing technique, and some can even be easily wiped off by hand.

Whether there is noise: the left hand holds the inner sleeve of the bearing, the right hand digs the coat to make it rotate, listen to whether there is noise.Due to the backward production conditions of most counterfeit products, complete manual workshop operation, in the production process will inevitably be mixed with sand impurities, hidden in the body of the bearing, so it will send out noise when rotating.This is the biggest difference between factory brands that strictly adhere to production standards and operate with machines.

Whether there are muddy oil stains on the surface: this should be particularly noted when buying one-way bearings.Due to the current domestic antirust technology is not particularly home, so the antirust processing was carried out on the bearing body and is easy to leave the thick oil stains, holding the thick thick, while the foreign original one-way bearing can hardly see the trace of anti-rust oil, is particularly careful expert said smell a smell, a one-way bearing must be under the anti-rust oil, just can't see.

Uniform chamfering: the so-called bearing chamfering, which is the intersection of horizontal and vertical surfaces, the imitation bearing due to the limitations of production technology, in these corners of the treatment is not satisfactory.

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