Laser cutting machine bearing inspection

We need to see metal laser cutting machine steel seal word is clear: on the bearing body printed with brand, label, etc. Font is very small, but is produced by the factory are mostly use seal technology, and before without overheating treatment of words, so the font although small, but deep concave, very clear. And counterfeit products font instead of fuzzy, because of printing technology coarse, font float to the surface, in some cases can be easily erased by hand.
second watch metal laser cutting machine have miscellaneous ring: the bearing body with his left hand, right hand toggle coat to make it spin, listen to its hybrid ring. Due to the backward production conditions most of the counterfeit products, fully manual mill operation, in the process of production inevitably mixed into the sand kind of impurity, hidden in the bearing body, so makes a noise when rotating ring. This is and strict production standards, and use machine operation is big different between factory brand.
the next check for muddy soil surface: it should pay special attention to when to buy imported bearings. Due to the current domestic antirust technology is not particularly home, so the antirust processing was carried out on the bearing body and is easy to leave the thick oil stains, holding the thick thick, and imported from abroad can hardly see the trace of anti-rust oil bearing, is particularly careful expert said imported bearing smell a smell, must be under the anti-rust oil, just can't see.
step is the metal laser cutting machine after chamfering whether uniform: so-called bearing chamfer, namely horizontal plane and vertical plane junction, counterfeit bearings because of the limitation of production technology in the area of the fringes is handled.