Chamfering is a term in mechanical engineering. In order to remove the burrs caused by machining on the parts and to facilitate the assembly of the parts, chamfers are generally made at the ends of the parts.
The general function of chamfering is to remove burrs and make them beautiful.
However, the chamfers specified in the drawings are generally required by the installation process, such as the installation guide of the bearing. There are also some arc chamfers (or called arc transitions) that can also reduce stress concentration and strengthen shafts. The role of the strength of the parts.
In addition, it can also make assembly easy, usually before the end of processing.
On agricultural machinery parts, especially round parts and round holes, the end faces are often processed into a chamfer of about 45°.
These chamfers have many functions. They must be checked carefully 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 carried out to facilitate access to the forming mold.
What is the function of bearing chamfer？
1. The bearing steel must be chamfered during rough machining before heat treatment, so that during the heat treatment of the material, the release of stress, the redistribution of the internal structure, the resistance to cracks, and the reduction of deformation are very important. Chamfering can solve the problem of stress concentration.
2. Chamfering and deburring make the product unsharp and will not cut the user.
3. It plays a role of guiding and positioning during assembly.
Generally, the outer chamfer of the outer ring and the inner chamfer of the inner ring are rounded corners. In addition to effectively avoiding contact stress, the most important thing is to facilitate installation. The rounded corners can ensure a good transitional fit.
Especially in the bearing process, the matching shaft and the positioning surface of the shaft hole, that is, the shaft shoulder and the bearing seat shoulder part, the chamfer size of this part directly affects whether the bearing can be installed correctly.
Therefore, the matching of chamfers must be fully considered in the assembly process of the bearing.