Heavy-duty casters play an important leading role in the development of contemporary industry. The development of a city can be based on the efficiency of its caster use, and the economic development level of a city is proportional to its caster utilization rate. Nowadays, in order to adapt to different places and various environmental requirements, there are various caster sizes, and people can choose different caster sizes for use according to their needs. So, how can we distinguish the authenticity of heavy-duty caster bearings? Let's learn about the specific methods together.
Each bearing product will have its brand name, number, etc. printed on the bearing product body. Although the font is very small, the products produced by regular manufacturers are printed with steel stamping technology, and the characters are pressed before heat treatment. Therefore, although the font is small, it is deeply concave and very clear. The font of counterfeit products is not only blurred, but due to the rough printing technology, the font floats on the surface, and some can even be easily wiped off by hand.
The outer packaging of the fake "NSK" brand heavy-duty bearings is slightly different from that of the genuine "NSK" brand heavy-duty bearings. The "NSK" trademark on the right side of the packaging box is in red bold, while the "NSK" trademark is in white bold. From the appearance of the heavy-duty bearings, skfskf imported heavy-duty bearings are generally packed in paper boxes. The color of the paper box is dark blue, and the heavy-duty bearing model printed on it is very clear that NSK anti-counterfeiting technology is used. It is difficult for fake heavy-duty bearings to do this. The box color is lighter and it is easy to fade. The font of the heavy-duty bearing model is also vague.
The so-called genuine goods are usually branded goods. Genuine goods generally have a better price-performance ratio and are acceptable to customers. Fake goods are non-branded goods pretending to be branded goods. Goods that are in short supply in the market and have a longer delivery period are the objects that fakes are willing to charge extra. Generally speaking, individuals and units who buy fakes hate fakes, of course, except for those who deliberately use fakes.
Friends believe that genuine and fake goods are clearly marked with prices. The high and low prices have already indicated the quality and authenticity of the bearings. Customers who choose low prices are defaulting to inferior or even fakes. Many domestic bearings are as good as imported ones, but they are not well-known and have no sales. Counterfeiting well-known brands is the way for these companies to survive.
For a normal radial ball heavy-duty bearing, the inner and outer ring raceways should be free of peeling and severe wear marks, and should present a bright arc groove; all balls should remain round, with no freckles, cracks or peeling on the surface; the cage should not be loose, broken or worn through. When holding the inner ring with one hand and quickly pushing the outer ring with the other hand to rotate, the rotation should be smooth, and only a slight sound of the ball rolling on the raceway can be heard, without vibration; when resting, the speed should be gradually reduced, and there should be no *shielded keyword* phenomenon after stopping. For a normal radial ball heavy-duty bearing, the gap between the inner and outer rings and the moving body is 0.005-0.010mm, and when shaking the inner and outer rings radially, there should be no gap. For used heavy-duty bearings, you can hold the inner ring with your hand and shake it axially for a few times. When there is a noticeable sound between the outer ring and the ball, it means that the fit clearance exceeds 0.03mm and should no longer be used.
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