How To Distinguish The Quality Of Bearings
To identify the quality of equipment bearings, we usually carry out from the following aspects:
1. Is the outer packing clear
Under general circumstances, the brand that normal manufacturer produces has oneself special designer to undertake design to pack outside, and arrange the factory that produces a condition to pass to make production, accordingly, the package of product no matter from line to color block should be very clear, without ambiguity.
2, Whether the stencil is clear
Each bearing product will be printed on the bearing product body its brand name, label, etc. Although the font is very small, but the formal manufacturers of the products are using the stenciling technology to print, and in the process of pressing before not overheating, so its font is small, but deep concave, very clear. And in general, the counterfeit product font is not only fuzzy, due to the printing technology is rough, fonts float on the surface, some can even be easily wiped with the hand or manual traces of serious.
3, Whether there is noise
The left hand holds the bearing body sleeve, the right hand moves the jacket to make it rotate, listen to whether there is noise during the bearing operation. Due to the backward production conditions of most counterfeit products and manual workshop operation, the bearing body will inevitably be mixed with dust, sand and other impurities in the production process, so when the bearing rotation will appear noise or not smooth operation. This is the key to determining whether a product is a branded product from a legitimate manufacturer with strict production standards and machine operation.
4, Whether the surface is muddy oil trace
Whether there is a muddy oil trace on the surface requires us to pay special attention when buying imported bearings. Due to the current domestic antirust technology and foreign advanced manufacturing countries have a certain gap, so the antirust treatment of the bearing body is easy to leave a thick trace of oil, feel sticky when the hand contact, and foreign original imported bearings almost can not see any antirust oil.According to the introduction of the industry, special careful people can smell a special smell on the imported bearings, this is the smell of rust prevention oil.
5. Chamfering is uniform
The chamfering of the so-called bearing, that is, the intersection between the horizontal and vertical surfaces, the counterfeit bearing products due to the limitations of production technology, in these corners of the parts are not satisfactory, this we can easily identify.