What is the difference between precision bearings and ordinary bearings

What is the difference between precision bearings and ordinary bearings? The performance of precision bearings requires that small friction when the rotating body has high run out precision and high speed rotation. In this case, precision bearings are divided into P0, P6, P5, P4 and P2 according to ISO classification standards. P0 bearing is normal precision.

1.The size requirements is different. The size error (inner diameter, outer diameter, ellipse, etc.) of products with high precision grade is smaller than that of products with low precision grade.

2.The requirements of rotation accuracy are different. The rotation accuracy of products with high precision (inner radial run out, outer diameter run out, end run out facing raceway, etc.) is stricter than that of products with low precision.

3.The requirements of surface shape and surface quality are different.  The surface shape and surface quality (surface roughness of raceway or groove, circular error, groove shape error, etc.) of products with high precision are stricter than those of products with low precision.

Kent Bearing is an enterprise focusing on the research and manufacture of ball bearings with high precision and low noise, and has rich experience in the production and sales of bearings. At present, our products are widely used in motor, automobile, household appliances, power tools, garden tools, fitness equipment, medical equipment, water pumps, mechanical equipment and other fields. We have been well received by many customers adhering to the business philosophy of "the real quality is more durable, so that the bearing rotation is quieter". Welcome to inquiry and feel free let me know if you any interesting.