Rolling bearings are mainly composed of high carbon chromium bearing steel.High-carbon chromium bearing steel is also called fully hardenable steel with the same inside and outside hardness. It is widely used in many industries with bigger quantity, over 80% of the total material.
1.GCr15
Feature and application:It can be applied in many industries with big quantity in Martensite and bainite quenching.
Technical specification:Effective wall thickness under 26mm,extra light and narrow series less than 16mm,Quenching and tempering hardness HRC57~62.
2.GCr15SiMn
Feature and application:it can be applied in many industrial with big-size bearings in Martensite quenching.
Technical specification:effective wall thickness thicker than 26mm,extra light and narrow series more than 16mm,quenching and tempering hardness HRC57~62.
3.GCr18Mo
Feature and application:bainite steel, used in wear resistant occasion with bainite quenching.
Technical specification:effective wall thickness within 26~48mm, extra light and narrow series less than 16mm, quenching and tempering hardness HRC57~62,bainite is more wear than martensite, better for wear resistant occasion.