With the continuous increase of domestic car ownership, the demand for auto parts and auto supplies is also increasing. However, there are many large and small parts and supplies stores in Guangzhou, and the goods are mixed, and many fake and shoddy products are available. Mixed in, resulting in the loss of the owner, and even lead to casualties. In order to let the car owners have a certain understanding of the characteristics of the accessories and supplies of the original brands, from this week on the car owner page, a special column 'Smart Consumer' will be opened to introduce various types and main car brand accessories to car owners and friends. way of identification. It is hoped that with the development of the column, the concept of respecting brands, eliminating fakes, and using genuine products can be deeply rooted in the hearts of the people. This is our hope and the direction of our efforts. It is no exaggeration to call the bearing the joint of the car. In a car, not only its four legs --- the wheels need to use bearings, but all the rotating machine parts need the participation of bearings, it is a very inconspicuous but important thing in the transmission system. Because of the large workload and high degree of wear, it is a common thing to replace bearings in automobile maintenance. Walking in the auto parts market, I found that there are many bearing stores operating various brands. However, what is the quality of the bearings they sell? Is it really the original brand as indicated on the packaging? This question has probably been lingering in the minds of every car owner many times. Here are some common methods for identifying bearing quality: Whether the outer packaging is clear: In general, Zhengchang brands have their own dedicated designers to design the outer packaging, and arrange for factories that have passed the production conditions to make production, so packaging From the lines to the color blocks, it is very clear and unambiguous. (There are also unique designs on the accessories packaging of some imported brands to protect their intellectual property rights, which will be introduced in detail in future content). Whether the stencil is clear: brand words, labels, etc. will be printed on the bearing body. The font is very small, but most of the products produced by the factory use steel stamping technology, and the embossing is carried out before heat treatment. Therefore, although the font is small, it is deeply concave and very clear. The fonts of counterfeit products are not only vague, but because of the rough printing technology, the fonts float on the surface, and some can even be easily erased by hand. Whether there is any noise: Hold the bearing body sleeve with the left hand, turn the outer sleeve with the right hand to make it rotate, and listen to whether there is any noise. Due to the backward production conditions of most of the counterfeit products and the completely manual workshop operation, it is inevitable that impurities such as sand will be mixed in during the production process and hidden in the bearing body, so there will be noises when rotating. This is the biggest difference from the genuine brand that strictly enforces production standards and operates with machines. Whether there are turbid oil marks on the surface: 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 traces when the bearing body is anti-rust, which is sticky and sticky in the hand, and the bearings imported from abroad are almost invisible. As for the traces of anti-rust oil, a very careful expert said that the imported bearings smelled a kind of smell, which must have been anti-rust oil, but it was not visible. Whether the chamfer is uniform: the so-called chamfer of the bearing, that is, the junction of the horizontal and vertical surfaces, the counterfeit bearings are not handled well in these corners due to the limitation of production technology.