Bearing parts processing technology

Bearing is an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Rolling bearings generally consist of four parts: outer ring, inner ring, rolling elements and cage. According to the shape of the rolling elements, rolling bearings are divided into two categories: ball bearings and roller bearings. Although there are many types of rolling bearings, their structural types, tolerance levels, material selection, and processing methods are different, but their basic manufacturing processes are similar. Below, Yida Borun Petrochemical briefly introduces the processing technology of bearing components:

1. Bearing manufacturing process sequence

(1) Bearing parts manufacturing-bearing parts inspection-bearing parts demagnetization, cleaning, and rust prevention-bearing assembly-bearing finished product inspection-bearing finished product demagnetization, cleaning-bearing finished product oiling, packaging and storage.

(2) The ferrule is an important part of the rolling bearing. Due to the wide variety of rolling bearings, the size, structure, manufacturing equipment and process methods of the ferrules of different types of bearings are different. And because the ferrules have many processing steps, complex processes, and high processing accuracy requirements, the processing quality of the ferrules has an important impact on the accuracy, service life, and performance of the bearings.

2. Bearing ring process sequence

The raw materials for ring manufacturing are cylindrical bars or pipes. Currently, rolling bearing rings generally have the following manufacturing processes based on different molding processes.

(1) Bar stock: blanking-forging-annealing (or normalizing)-turning (cold press forming)-heat treatment quenching and tempering-grinding-parts inspection-demagnetization, cleaning-submit for assembly.

3. Ferrule forming method

At present, the main forming methods in ferrule processing include the following: forging, turning, cold rolling and cold (warm) extrusion.