To distinguish the quality of equipment bearings, Hunan Jintai Hardware and Machinery Co., Ltd. usually performs the following aspects:
1, whether the packaging is clear
Under normal circumstances, the regular manufacturers of the brand have their own specialized designers to design the external packaging, and arrange the production conditions of the factory for production and production, therefore, the packaging of the product from the line to the color should be very clear, unambiguous.
2. Is the stenciled word clear
Each bearing product will have its brand name, label, etc. printed on the body of the bearing product. Although the fonts are very small, the products made by regular manufacturers all use the stencil printing technique and they are pressed before the heat treatment. Therefore, although the font is small, it is very dark and very clear. Under normal circumstances, the fonts of counterfeit products are not only blurred, but due to the rough printing technology, the fonts float on the surface, and some of them can easily be wiped off by hand or severely traced by hand.
3, whether there is noise
The left hand holds the bearing body sleeve, and the right hand toggles the jacket to rotate, and hears whether there is any noise in the bearing during operation. Since most of the counterfeit products have backward production conditions and are completely hand-worked, the bearing body is inevitably mixed with impurities such as dust and sand during the production process. Therefore, when the bearing rotates, it may cause an abnormal sound or a non-smooth operation. . This point is the key to judging whether the product comes from the strict production standards and the regular manufacturer's branded products that are operated by machines.
4, whether the surface has muddy oil traces
Whether the surface has cloudy oil traces requires us to pay special attention when purchasing imported bearings. Since the current domestic rust-proof technology still has a certain gap with foreign advanced manufacturing countries, it is very easy to leave thick oil traces on the rust-preventive treatment of bearing bodies and feel sticky and thick when touched by hand. Almost no trace of anti-rust oil can be seen on the imported bearings. According to industry insiders, people with special care can smell a special smell on imported bearings, which is the taste of anti-rust oil.
5, whether the chamfer is even
The so-called chamfering of the bearing, that is, the intersection of the horizontal plane and the vertical plane, counterfeit bearing products due to the limitations of production technology, in these corners of the corner of the treatment is not satisfactory, we can easily distinguish this point.