What is the difference between precision bearings and ordinary bearings?

The so-called precision bearing means that according to the ISO classification standards, it is divided into: P0, P6, P5, P4, P2. The grades are increased in turn, where P0 is ordinary precision, and the 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, China Bearing Network will introduce to you the difference between precision bearings and ordinary bearings.

What is the difference between precision bearings and ordinary bearings?

1.Precision bearings Size Different

The size requirements are different. The dimensional deviations (inner diameter, outer diameter, ellipse, etc.) of products with high accuracy grades are smaller than those required by products with low accuracy grades;

2.Precision bearings required values of rotation accuracy are different

The required values of rotation accuracy are different. The rotation accuracy of products with high accuracy grades (inner radial runout, outer radial runout, end face raceway runout, etc.) are all lower than those with lower accuracy levels. The required value should be strict;

3.Precision bearings required values of surface shape and surface quality are different

The required values of surface shape and surface quality are different. The surface shape and surface quality of high-precision products (surface roughness of raceway or raceway, circular deviation, groove deviation, etc.) They are stricter than those required by products with lower accuracy levels;

4.Precision bearings Material grade different.

The materials of products with particularly high accuracy grades are more advantageous than the material properties of products with general accuracy grades.

In the process of using bearings, choose precision bearings or ordinary bearings according to specific actual requirements, so as to make better use of mechanical equipment or parts