Bearing Knowledge

Bearing accuracy

Bearing accuracy is mainly divided into dimensional accuracy and rotation accuracy.

Dimensional accuracy:

1. Allowable deviation of inner diameter, outer diameter, width and assembly width

2. Allowable deviation of the diameter of the compound circle and the diameter of the outer complex circle in the roller group

3, the allowable limit value of the chamfer size

4, the allowable variation of the width

Rotation accuracy:

1. Allowable radial runout and axial runout of the inner and outer rings

2, the inner ring allows lateral runout

3. Allowable variation of the inclination of the outer diameter surface

4. Allowable variation of the thickness of the thrust bearing raceway

5. Allowable deviation and allowable variation of tapered bore