First of all, precision bearings can be divided into many categories according to the relevant classification standards. Although different classification standards and different types of bearings have different classification methods, the meanings are the same. Secondly, in terms of size, it is different from the required value of ordinary bearings. The dimensional deviation of products with high precision grades is smaller than the required value of products with low precision grades.

At the same time, precision bearings also have a distinction between surface quality and surface shape. The surface shape and surface quality of bearings with high precision grades are stricter than those required by bearings with low precision grades; and for bearings with particularly high precision grades, its materials must be The material properties of products of general precision grade are more favorable.
Just like this, the performance requirements of precision bearings are much higher than those of ordinary bearings. In terms of rotation accuracy, high run-out accuracy, high-speed rotation, and small friction and friction changes are required.

Shandong Nairun Bearing Co., Ltd. is mainly engaged in angular contact ball bearings, precision bearings, aerospace bearings, magnetic suspension bearings, floating bearings, vacuum pump bearings, ultra-low temperature bearings, high-speed rolling mill bearings, high-speed motor bearings and other products. The company's ultra-high-precision bearing raw materials All use high-end bearing materials such as special stainless steel and high-temperature bearing steel, and use vacuum furnaces and other equipment to carry out special processing on product parts, thereby ensuring the inherent quality of the product and greatly extending the service life of the bearing.