DUHUI

Rolling bearings are commonly used parts in machinery. According to their different characteristics and application scenarios, they can be classified from multiple dimensions. The following is a detailed classification of rolling bearing types:

The accuracy standard of rolling elements, that is, the grade of steel balls, is a comprehensive index determined by five main indicators, and the unit is microns.

Equipment with different precision requires bearings with different precision. The precision is divided into several levels such as p0 < p6 < p5 < p4 < sp < p2. Generally, the accuracy of main bearings requires P5 or above.

There is no unified standard for the life of wheel bearings, which mainly depends on the quality of the bearing itself, the vehicle’s usage environment, and the level of maintenance. Under normal circumstances, the average service life of wheel bearings is 136,000 to 160,000 kilometers.