What kind of steel is bearing steel?

What kind of steel is bearing steel?

Often said "bearing steel", what is the steel like we often say "bearing steel", then what is bearing steel, today Xiaobian led you to understand.~

Bearing steel, also known as high carbon chromium steel, contains about 1% carbon and 0.5% - 1.65% chromium.

High carbon chromium bearing steel GCr15 is the largest bearing steel in the world. Its carbon Wc is about 1% and chromium content is about 1.5%. Since its birth in 1901, the main components have not changed for more than 100 years. With the progress of science and technology, the research work is continuing and the product quality is continuously improving, which accounts for the world's total production of bearing steel. More than 80%. So if there is no special description of bearing steel, it means GCr15.

Application and Classification of Bearing Steel

Bearing steel is used to make balls, rollers and bearing rings. It can also be used to make precision measuring tools, cold stamping dies, machine tool screw, taps and precise parts of diesel engine oil pump. Bearing steel has high and uniform hardness, wear resistance and high elastic limit. The requirement of homogeneity of chemical composition, content and distribution of non-metallic inclusions and carbides in bearing steel is very strict, which is one of the most stringent steel grades in all steel production. In 1976, ISO brought some general bearing steel grades into international standards, and divided them into four categories: fully hardened bearing steel, surface hardened bearing steel, stainless bearing steel and high temperature bearing steel, totaling 17 steel grades.

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