Bearing Steel
Unsurpassed high-cleanliness
Bearing steel is special steel featuring high wear resistance and rolling fatigue strength. High-carbon chromium bearing steel, engineering steel and some types of stainless steel and heat resistant steel are used as materials of bearings and for other purposes.
Sanyo Special Steel takes advantage of the high-cleanliness steel production technology in achieving the world’s top cleanliness and leads the bearing steel industry because of its high quality and reliability. We have also established a system to produce and offer steel bars, wire rods, tubes and formed and fabricated materials that match the process of each customer in terms of shape.
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| Major Grades | |
|---|---|
| High-carbon chromium bearing steel | High hardness is achieved by direct quenching, while machinability is improved by spheroidizing annealing. |
| Case hardening bearing steel | The carburizing process provides a tough core as well as a surface featuring hardness and wear resistance equivalent to those of high-carbon chromium bearing steel. |
| Stainless hardening and high temperature bearing steel | The material, featuring high wear resistance, corrosion resistance and heat resistance, is used to make bearings mounted in an oxidizing atmosphere or high temperature, where corrosion of material is accelerated. |
| Medium-carbon bearing steel | Induction hardening is applied to portions where high hardness is needed. |