To distinguish the quality of equipment bearings, we usually proceed from the following aspects.

1. Whether the outer packing is clear. Double row cone roller bearing is in normal condition, and the brand that formal manufacturer produces has his special designer to undertake designing external packing, and the factory that arranges production condition to pass undertakes making production, therefore, the packaging of the product no matter from line to color piece should be very clear and unequivocal.

2. Whether the steel print is clear. Each bearing product will be printed on the bearing body with its brand, label and so on. Although the font is very small, the regular manufacturer of the products used steel printing technology to print the word, and before the overheating process before the word, the font is small but deep and very clear. In general, the font of the fake product is fuzzy. Because of the rough printing technology, the font is floating on the surface, and some of they can be easily wiped by hand or have serious manual traces.