How to distinguish the quality of bearing
To identify the quality of equipment bearing, we usually proceed from the following aspects:
1. Whether the outer packing is clear
Under normal circumstances, regular manufacturers have their own special designers to design the external packaging, and arrange the production conditions of the factory to make production, therefore, the product packaging from the line to the color block should be very clear, without ambiguity.
2. Whether the stenciled words are clear or not
Each bearing product will be stamped with its brand name, label, etc.Although the font is very small, but the products produced by the regular manufacturers have used the stencil printing technology to print words, and before the treatment of overheating on the press, so the font although small, but deep, very clear.Usually, the typeface of the counterfeit product is not only blurred, but also floats on the surface due to the rough printing technology, some of which can be easily erased by hand or serious manual marks.
3. Is there any noise
The left hand holds the inner cover of the bearing, and the right hand tugs the outer cover to make it rotate.Because the production conditions of most of the counterfeit products are backward, completely manual workshop operation, in the production process, the bearing body will inevitably be mixed with dust, sand and other impurities, so in the rotation of the bearing will appear noise or run not smooth phenomenon.This is the key to determining whether a product is produced under the brand name of a regular manufacturer with strict manufacturing standards and machine operation.
4. Whether there are muddy oil stains on the surface
Whether there is a muddy oil mark on the surface requires us to pay special attention when buying imported bearings.Due to the domestic current rust technology and foreign advanced manufacturing countries still have a certain gap, so the bearing body rust treatment is easy to leave a thick oil mark, touch with the hand feel sticky thick, and foreign imported bearing almost can not see any traces of rust oil.According to the introduction of the industry, especially careful people can smell a special flavor in the import bearing, this is the smell of anti-rust oil.
5. Whether the chamfering is uniform
The so-called bearing chamfering, that is, the intersection of horizontal and vertical surfaces, counterfeit bearing products due to the limitations of production technology, in these corner parts of the processing is not satisfactory, this we can easily identify