Distinguish the quality of equipment bearings, we usually from the following aspects:
1.Whether the outer packaging is clear: in general, the brands produced by formal manufacturers have their own special designers to design external packaging, and arrange the production conditions of the factory to make and produce, therefore, the packaging of the product should be very clear from the line to the color block. Be unambiguous.
2.Whether the steel print is clear: each bearing product will have its brand character, label and so on on the bearing product body. Although the font is very small, but the products produced by regular manufacturers use steel printing technology, and before the heat treatment to press the character, so although the font is small, but concave, very clear. In general, the font of the counterfeit product is not only blurry, because the printing technology is rough, the font floats on the surface, some can even be erased by hand or the manual mark is serious.
3.Whether there is noise: hold the bearing sleeve in the left hand, the right hand toggles the coat to make it rotate, listen to whether there is noise in the running process of the bearing. Because the production conditions of most counterfeit products are backward and completely manual workshop operation, in the production process, the bearing will inevitably be mixed with dust, sand and other impurities, so when the bearing rotates, it will appear the phenomenon of murmur or not running smoothly. This is the key to judging whether the product comes from a branded product of a regular manufacturer with strict production standards and machine operation.
4.Whether there is turbid oil trace on the surface: there is turbid oil trace on the surface. This requires us to pay special attention to the purchase of imported bearings. Because there is still a certain gap between domestic antirust technology and foreign advanced manufacturing countries, it is easy to leave thick oil marks when antirust treatment is carried out on bearings, and feel sticky and thick when touching with hands, while there is almost no trace of antirust oil on the bearings imported from abroad. According to industry insiders, very careful people can smell a special taste on imported bearings, which is the taste of rust-proof oil.
5.Whether the chamfer is uniform or not: the chamfer of the so-called bearing, that is, the intersection of the horizontal plane and the vertical plane, the counterfeit bearing products are not handled well in the corner and side due to the limitation of production technology, which we can easily distinguish.