In China, bearing counterfeiters are becoming more and more common. Why does this happen? First of all, we need to find some reasons fundamentally. In China, it is a place with cheap labor force. As long as the salary is almost the same, it will soon recruit all the workers in a workshop. Then we can start production. [don't think about the equipment here. As long as you can afford to open the factory, you must be rich gold owners] now, it's the boss's idea to have equipment and workers who want to make real bearings or fake bearings. In fact, the profit in bearings is also great. If a bearing can save a dollar in cost, how much can a car of bearings save? This should be the sentence: & ldquo; All the hustle and bustle in the world are for profit, and all the hustle and bustle in the world are for profit& rdquo;
1、 Identify fake bearings in existing data
1. Manufacturing bearings with iron and carbon steel (hardness is not enough) and repairing waste bearings (accuracy is not enough)
2. Mark the inferior bearings and bearings of small factories with the trademarks of large factories, and fake the internal and external packaging and certificate of conformity of the products of famous large factories
3. Fake users, dealers, agents of famous manufacturers, and even the spot sales department of fake manufacturers
4. Fake defective bearing as genuine bearing
5. Change ordinary grade bearing into grade D bearing
6. The original goods are mixed with counterfeit goods
7. Counterfeit products are sold at the price of genuine products, genuine products are sold at the price of grade D, and fake price books are used
8. If the customer wants cheap goods, he will give counterfeit goods, and if he wants good quality, he will give the original goods
9. There will be anti-counterfeiting marks and anti-counterfeiting identification codes on the outer packaging of each bearing
2、 If the above still do not distinguish the true from the false, it is necessary to distinguish from the experience
1. Price identification
Often, the basic prices of formal brands are the same, and there will be no such high and low prices. You need to be careful not to be blinded by the immediate interests. If the price is much lower than normal, it may be false. It is recommended not to buy. The appearance color of the bearing can fully reflect the material of the bearing products. Some manufacturers make a big fuss about the use of steel, reduce the steel model and replace the steel products with inferior ones. The appearance color is mostly white. The green of coaxial bearing steel has a clear distinction, and the color of the bearing can well identify these low-cost materials
2. Whether there are muddy oil stains on the surface
Whether there is muddy oil on the surface requires special attention when we buy imported bearings. As there is still a certain gap between domestic antirust technology and foreign advanced manufacturing countries, it is easy to leave thick oil traces when antirust the bearing body, which feels sticky when contacting with hands, while almost no traces of antirust oil can be seen on the bearings originally imported from abroad. According to industry insiders, a particularly careful person can smell a special smell on the imported bearing, which is the smell of antirust oil, but he can't see it
3. Whether the chamfer is uniform
The so-called bearing chamfer, that is, the junction of horizontal and vertical surfaces. Due to the limitation of production technology, the counterfeit bearing products are not handled satisfactorily in these corners, which we can easily distinguish. For example, the chamfer of KF bearing mostly shows the feeling of black and smooth, but there are blocky marks in the black (you can see but can't touch), which is a process left by quenching. NSK bearing & lt; Generally, milky white or gray irregular patterns are displayed at the chamfer, which is also a trace left by quenching. Fag has different producing areas. The appearance of South Korea is beautiful, and the sealing cover made in Portugal is protruding (like a toad). Fake bearings - generally made of black, more uniform
