The so-called precision bearings refer to the classification according to ISO classification: P0, P6, P5, P4, P2. The grades are increased sequentially, of which P0 is ordinary precision, and other grades are precision grades. Ordinary bearings are our commonly used bearings. What is the difference between precision bearings and ordinary bearings? According to the detailed understanding, we will introduce the difference between precision bearings and ordinary bearings.

What is the difference between precision bearings and ordinary bearings?

The precision bearing is different from the ordinary bearing. 1. The dimensional requirements are different. The dimensional deviation (inner diameter, outer diameter, ellipse, etc.) of the product with high precision grade is smaller than the value required by the product with lower accuracy grade;

The precision bearing is different from the ordinary bearing. 2. The required value of the rotation accuracy is different. The product with high precision has higher rotation accuracy (inner radial runout, outer radial runout, end face to raceway runout, etc.) than products with lower precision grade. The required value is strict;

The precision bearing is different from the ordinary bearing. 3. The surface shape and surface quality are different. The surface shape and surface quality of the product with high precision grade (surface roughness, circular deviation, groove deviation, etc. of the raceway or channel) Products that are lower than the accuracy level require stricter values;

Precision bearings are different from ordinary bearings. 4. Products with particularly high precision grades are more advantageous than those of general precision grades.

In the process of using the bearing, the precision bearing or the ordinary bearing is selected according to the specific actual requirements, so that the mechanical device or the component can be better used.