The role of bearing chamfer

Chamfering is a term in mechanical engineering. In order to remove the burr on the part due to machining and to facilitate the assembly of the part, chamfering is generally made at the end of the part. Chamfers can be seen everywhere in our lives, on the frame of mobile phones, on tempered doors, on vases and so on.

Generally, the function of chamfering is to remove burrs and make them beautiful. However, the chamfers specially pointed out in the drawings are generally the requirements of the installation process, such as the installation guide of the bearing, and some arc chamfers (or called arc transitions) can also reduce stress concentration and strengthen the shaft. The effect of the strength of the class part. In addition, it also facilitates assembly, generally before machining is complete.

On agricultural machinery parts, especially the end faces of round fittings and round holes are often processed into a chamfer of about 45°. These chamfers have many functions, and they must be carefully checked and fully utilized during maintenance operations, otherwise it will bring many difficulties to the maintenance of agricultural machinery and even cause unexpected failures. For example, before the forming process of small parts such as bolts, chamfering is also performed, so that the material can easily enter the forming die.

Bearing chamfer effect

1. Bearing steel must have chamfers during rough machining before heat treatment, which plays a very important role in the release of stress, redistribution of internal structure, less cracks and reduction of deformation during heat treatment of the material. Chamfering can solve the problem of stress concentration.

2. Chamfering and deburring, so that the product is not sharp and will not cut the user

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

Usually, the chamfers of the outer ring of the bearing and the inner chamfers of the inner ring are rounded. In addition to effectively avoiding contact stress, the most important thing is to facilitate installation. Rounded corners ensure a good transition fit.

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