1. Bearing steel must be chamfered during rough machining before heat treatment. This is very important for the release of stress, redistribution of internal structure, less prone to cracks and reduced deformation during heat treatment of materials. Chamfering can solve the problem of stress concentration.

2. Chamfering to remove burrs makes the product not sharp and will not cut the user

3. It plays a guiding and positioning role during assembly.

Usually the outer chamfer of the outer ring of the bearing and the inner chamfer of the inner ring are rounded. In addition to effectively avoiding contact stress, the most important thing is to facilitate installation. Rounded corners can ensure good transitional loading.

Especially in the bearing process, the positioning surface of the matching shaft and shaft hole, that is, the shoulder and the shoulder of the bearing seat, the size of the chamfer of this part directly affects whether the bearing can be correctly installed in place.

When the bearing is installed between the shaft box and the shaft, its chamfer is larger than the chamfer of the bearing box and the shoulder. The chamfer of the bearing must be larger than this arc to ensure that the bearing fits the axial positioning surface.

When the chamfer of the bearing is smaller than the chamfer of the bearing box and the shaft shoulder, it cannot be assembled in place, which may easily cause a series of problems such as stress concentration at the chamfer of the bearing, assembly tilt, and inability to match other mating parts.