Choosing a good car bearing not only has a longer service life, but more importantly, ensures the safety of the car, and also saves the trouble of replacement and repair. Be a rational consumer, and don't let the tricks of black-hearted merchants succeed. Come learn how to tell the difference! Firstly, look at the sealing precision of the bearing: Generally, the bearing has a rubber cover seal or an iron ring seal. We can check whether there are bumps, burrs, etc. at the seal. It is difficult for us to observe the degree of corrosion resistance and high temperature resistance with the naked eye. So greedy and cheap. Secondly, look at the hardness and heat treatment of bearing steel: bearing steel is different from stainless steel, and the material workmanship requirements are higher. For details, please refer to the following parameters Thirdly, listen to the sound: After replacing the new bearing, the driving noise is very loud. After eliminating the cause, the front noise is large, the front wheel bearing has a problem, and the rear sound is loud, it may be the problem of the rear wheel bearing. It is recommended to replace it in time. A good bearing will not have a lot of noise. Fourthly, look at the font engraving: a good bearing is engraved with the brand, model, etc., and the font is clear and neat, and the engraving is clear and standard. The bad ones will be more blurry, and some are not even engraved. Fifthly, look at the packaging: regular manufacturers will have qualified packaging, and there will be a brand logo on the packaging, look for the brand, look for the packaging. In order to prevent unscrupulous merchants from stealing beams and replacing columns, it is also necessary to open the bearing to see if the same logo of Tong is engraved on the bearing. Sixthly, dialectical product QR code: Generally, the bearing packaging box is printed with the logo, model, model, batch number, and QR code, and we can scan the code for verification.