① Manufacture bearings with iron and carbon steel (not enough hardness) and repair waste bearings (not enough precision).
② Put inferior bearings and bearings of small manufacturers on the trademarks of big manufacturers, and counterfeit the inner and outer packaging and certificates of products of famous big manufacturers.
③ Fake users, distributors, agents of famous manufacturers, and even counterfeit manufacturers' spot sales offices.
④ Use defective bearings to pretend to be genuine bearings.
⑤ Type the ordinary grade bearings into D grade bearings.
⑥ Counterfeit goods mixed with original goods.
⑦ Counterfeit products are sold at genuine prices, genuine products are sold at D-level prices, and fake price books are used.
⑧ If customers want cheap goods, they will give counterfeit goods, and if they want good quality, they will give original goods.
How to identify counterfeit bearings
Understand the brand and specification of bearing products
It is very important to understand the brand of bearing products. Knowing some well-known bearing brands at home and abroad can effectively avoid choosing inferior bearing products from second-tier small factories in the purchase process, and the reputation of big brand products is also a good quality assurance. Before choosing a brand here, you must determine the specification brand of the bearing product you need in detail. Appropriate bearing specifications can not only effectively prolong the service life of the bearing, but also the most effective way to avoid safety accidents.
When the brand and product specifications are determined, it is the choice of the place of purchase. Here, one or two different ways can be recommended for the place of purchase. First, go directly to the manufacturer of the bearing product to buy it. Second, because word-of-mouth credibility is the guarantee of a company's market image, it is also a very good purchase to choose an agent or sales company with good word-of-mouth and credibility.
Under normal circumstances, the original brand has a special designer to design the external packaging, and arranges the factory to produce and produce the production conditions. Therefore, the packaging is very clear and unambiguous from the line to the color block. Some imported brand accessories There is also a unique design on the packaging to protect your intellectual property rights.
Brand words, labels, etc. will be printed on the bearing body. The font is very small, but most of the products produced by the original factory use steel printing technology, and the characters are embossed before heat treatment, so although the font is small, it is deeply concave and very clear. The fonts on counterfeit products are not only blurry, but also float on the surface due to rough printing techniques, and some can even be easily erased by hand.
Hold the inner sleeve of the bearing with your left hand, turn the outer sleeve with your right hand to make it rotate, and listen for any noise. Due to the backward production conditions of most counterfeit products, it is completely manual workshop operation, and impurities such as sand will inevitably be mixed into the bearing body during the production process, so there will be noise when rotating. This is the biggest difference from genuine factory brands that strictly enforce production standards and operate with machines.
This should be paid special attention to when purchasing imported bearings. Since the current anti-rust technology in China is not particularly good, it is easy to leave thick oil stains when anti-rust treatment is carried out on the bearing body, which is sticky and sticky in the hand, but it is almost invisible on the bearings imported from abroad. Seeing the traces of anti-rust oil, a very careful expert said that the imported bearings smelled a certain smell, and it must be anti-rust oil, but they couldn't see it.
The so-called chamfering of the bearing is the intersection of the horizontal surface and the vertical surface. Due to the limitation of production technology, the counterfeit bearings are not handled satisfactorily at these corners and corners.
The last point, since choosing bearing products, while being careful and cautious, you should also avoid coveting petty gains, so as not to outweigh the gains. The production of any product has a certain cost, and this cost is also the actual reason for determining the price of the product. As the saying goes, "you get what you pay for", of course, bearing products are no exception. Therefore, the bearing products of well-known enterprises have very strict control in the production process, from the selection of raw materials to the production process, and this is the basis for ensuring the quality of bearings. And because of this, the cost of bearing products will also increase, so bearing products with too low price will just expose its low-quality prototype.
In short, after a detailed understanding of the bearing product market, choose the purchase channel that suits you, and you will definitely choose the bearing product that suits you. Don't blindly pursue the price and ignore the quality!
