Bearing market fish eye mixing, precision angular contact bearing selection method
7/10/2017 4:28:59 PM
Precision angular contact ball bearings are mainly used for high-speed rotating applications such as machine tool spindles, high-speed motors, machine tool ball screws, gas turbines, centrifugal separators, etc. Bearings are required to have high precision, high speed, low temperature, low vibration and a certain service life. The support members of the high-speed electric spindle are often used in pairs, and are the key components of the high-speed electric spindle of the inner surface grinding machine.
Therefore, the selection of precision angular contact ball bearings is very important. He directly affects the processing performance of machine tools. Nowadays, the bearing market is mixed, and the fish eye is mixed. It is necessary to pay more attention to the selection of precision angular contact ball bearings.
Therefore, the selection of precision angular contact ball bearings is very important. He directly affects the processing performance of machine tools. Nowadays, the bearing market is mixed, and the fish eye is mixed. It is necessary to pay more attention to the selection of precision angular contact ball bearings.
Common methods for identifying bearing quality:
(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 pass the production and production, so the packaging is very clear from the line to the color block. Unequivocal, some imported brands have unique designs designed to protect their intellectual property.
(2) Whether the steel printing is clear: brand words and labels will be printed on the 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 inner sleeve of the bearing with your left hand, and turn the outer sleeve with your right hand to make it rotate to hear if it has noise. Since most of the counterfeit products are out of production conditions and completely hand-worked, it is inevitable that impurities such as sand will be incorporated into the bearing body during the production process, so that noise will be generated when rotating. This is the biggest difference between a factory brand that strictly enforces production standards and operates with machines.
Wuxi No. 2 Bearing is the largest manufacturer of precision angular contact ball bearings in China. It focuses on R&D and manufacturing of precision bearings for 26 years. It mainly conducts in-depth R&D and design for machine tool bearings, electric spindle bearings, engraving machine bearings, etc. The product precision is positioned in high precision. P4, P2 grade, does not produce bearings lower than P5 grade, the service life is far better than domestic counterparts, the best choice to replace imported bearings, and strive to become the first brand of angular contact ball bearings in China, and strive to provide customers with professional technical services. Create value.
