How To Distinguish The Real From The Fake With The Self-aligning Ball Bearing!

Whether the stamping is legible
Each bearing product will be printed with its brand words, labels, etc. on the bearing product body. Although the font is very small, the products produced by regular manufacturers are printed with steel printing technology, and the font is pressed before heat treatment, so although the font is small, it is deep and very clear. Usually, the font of counterfeit products is not only blurry, but also floating on the surface due to the rough printing technology, and some can even be easily erased by hand or have serious manual marks.

Whether there is a noise or not
Hold the inner sleeve of the bearing with the left hand, and rotate the outer sleeve with a small reciprocating amount with the right hand to listen to whether there is any noise during the operation of the bearing. Due to the backward production conditions of most counterfeit products and the complete manual workshop operation, it is inevitable that impurities such as dust and sand will be mixed into the bearing body during the production process, so there will be noise or poor operation when the bearing rotates. This point is the key to judge whether a product comes from a brand product of a regular maker which has a strict production standard and operates with a machine.

Whether there are cloudy oil stains on the surface
Whether there are turbid oil stains on the surface, which requires us to pay special attention when buying imported bearings. Because there is still a certain gap between the domestic anti-rust technology and foreign advanced manufacturing countries, it is easy to leave a thick oil stain when the bearing body is treated with anti-rust, and it feels sticky and thick when touched by hand, while there is almost no trace of anti-rust oil on the bearing imported from abroad. According to industry insiders, particularly careful people can smell a special smell on imported bearings, which is the smell of anti-rust oil.

Whether the chamfer is uniform
The so-called chamfer of the bearing, that is, the junction of the horizontal plane and the vertical surface, the counterfeit bearing products due to the limitations of production technology, in these corners and corners of the parts are not satisfactory, which we can easily identify.