How is the Ring of NSK One-way Bearing Formed

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Although there are many types of NSK one-way bearings, their structural types, tolerance levels, material selection, and processing methods are different, but their basic manufacturing processes include the following:

1. Manufacture of NSK unidirectional bearing parts-Inspection of bearing parts-Demagnetization, cleaning and rust prevention of bearing parts-Bearing assembly-Inspection of NSK unidirectional bearing products-Demagnetization and cleaning of NSK unidirectional bearing products-Storage of bearing oiled packaging buckets .

2. The ring is an important part of the NSK unidirectional bearing. Due to the variety of NSK unidirectional bearings, the ring size, structure, manufacturing equipment and process methods of different types of NSK unidirectional bearings are different. And because of the many processing procedures of the ferrule, the complex technology and the high precision of the processing, the processing quality of the ferrule has an important impact on the accuracy, service life and performance of the NSK one-way bearing.

3. The raw material for the manufacture of ferrules is cylindrical bar material or tube material. At present, according to the different forming processes, NSK unidirectional bearing ferrules generally have the following manufacturing processes.

(1) (Bar) blanking-forging-annealing (or normalizing-turning (cold roll forming)-heat treatment quenching, tempering-grinding-parts inspection-demagnetization, cleaning-submitting for assembly.

(2) (Bar stock, tube stock) blanking-cold rolling forming-heat treatment quenching, tempering-grinding-parts inspection-demagnetization, cleaning-submitting for assembly.

(3) (Pipe) blanking-turning forming-heat treatment quenching, tempering-grinding-parts inspection-demagnetization, cleaning-submission and assembly.

(4) (bar stock) blanking-cold (warm) extrusion molding-turning-heat treatment quenching, tempering-grinding-parts inspection-demagnetization, cleaning-submission and assembly.