Method for distinguishing the quality of INA stainless steel bearings

The proper selection of materials is still a factor that must be considered in the INA bearing failure analysis. The main task of bearing failure analysis is to find out the main factors causing the failure of stainless steel bearings based on a large amount of background materials, analysis data and failure modes, so as to propose improvement measures in a targeted manner, prolong the service life of bearings and avoid sudden occurrence of bearings. Early failure of sex. The installation condition is one of the primary factors in the use factor. The bearing is often changed due to improper installation, and the force state between the parts of the whole bearing changes, and the bearing runs in an abnormal state and fails early. According to the technical requirements of bearing installation, use, maintenance and maintenance, monitor and check the load, speed, working temperature, vibration, noise and lubrication conditions of the bearing in operation, find out the cause and immediately adjust the cause, make adjustment Back to normal.
1. Whether the outer packaging is clear: Under normal circumstances, the factory brand has its own special designer to design the outer packaging, and arrange the production facilities to produce and produce, so the packaging is very clear from line to color. unambiguous.
2. Whether the steel printing is clear: the brand name and label will be printed on the INA bearing body. The font is very small, but most of the products produced by the factory use the stamping technology, and the type is pressed before the heat treatment, so the font is small, but the recess is deep and very clear. The fonts of counterfeit products are not only blurred, but because of the rough printing technology, the fonts float on the surface, and some can even be easily erased by hand.
3. Is there any noise: hold the stainless steel bearing inner sleeve in the left hand, and turn the outer sleeve with your right hand to make it rotate to hear if it has noise. Due to the backward production conditions of most counterfeit products, it is completely hand-worked. In the production process, it is inevitable to incorporate impurities such as sand and sand into the INA bearing body, so it will make noise when rotating. This is the biggest difference between a factory brand that strictly enforces production standards and operates with machines.
4. Is there any turbid oil on the surface: this should be paid special attention when purchasing stainless steel bearings. Since the current domestic anti-rust technology is not particularly good at home, it is easy to leave a thick oil trace when the INA bearing body is rust-proofed, and it is sticky on the hand, and the foreign original bearing can hardly be seen. To the traces of anti-rust oil, it is a very careful expert who said that the bearing smells like a smell, it must be under the anti-rust oil, just can't see it.
5. Whether the chamfer is uniform: the so-called chamfer of the bearing, that is, the intersection of the horizontal surface and the vertical surface. The counterfeit bearing is unsatisfactory in the processing of these corners due to the limitation of production technology.

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