Calling bearings the joints of a car is not an exaggeration. In a car, not only the wheels need to use bearings, but any machine component that undergoes transformation cannot do without the participation of bearings. It is a very inconspicuous but very serious thing in the transmission system. Due to its large workload and high wear, replacing bearings is a common task in automotive repair. Here are some common methods for distinguishing bearing quality:

Is the outer packaging clear: Usually, the original brand has dedicated personnel to depict the outer packaging, and organizes factories with qualified production conditions to produce it. Therefore, the packaging is very clear and unambiguous from lines to color blocks. Some imported brands also have joint descriptions on their accessory packaging specifically designed to protect personal intellectual property rights, which will be continuously analyzed in future content.

Is the steel seal clear: there will be brand words, labels, etc. printed on the bearing body. The font is very clear. The font of counterfeit products is not only vague, because the printing skills are rough, the font floats on the surface, and some can even be easily erased by hand.

Is there any noise: Grasp the inner sleeve of the bearing with your left hand, and rotate the outer sleeve with your right hand to listen for any noise. Due to the outdated production conditions of some counterfeit products and thorough manual workshop operation, impurities such as sand may inevitably be mixed into the bearing body during the production process, so noise will be announced during rotation. This is the biggest difference between a genuine factory brand that strictly adheres to production standards and operates with machines.

Is there any dirty oil stains on the surface? This should be a common concern when purchasing imported bearings. Because the current rust prevention skills in China are not yet common, it is easy to leave thick oil stains on the bearing body during rust prevention treatment, which is sticky when held in the hand. However, there is hardly any trace of rust prevention oil on imported bearings from foreign countries. However, experts who are careful together say that imported bearings smell like they have been coated with rust prevention oil, and they cannot see it.

Whether the chamfer is uniform: The so-called chamfer of the bearing, which is the intersection between the horizontal and vertical surfaces, is not satisfactory for counterfeit bearings due to the constraints of production skills.