滚动轴承广泛用于各种行业,根据滚动轴承的工作条件,轴承用钢必须具备良好的可机械加工性、淬透性和淬硬性(>HRC61),能抵抗高压缩负荷而不出现凹坑,并能耐磨和耐疲劳剥落。按滚动轴承的使用要求,承受高周期应力的轴承使用寿命往往并不单纯取决于钢的化学成分和静态强度,而与钢中的非金属夹杂物(特别是氧化物)的结构、形态、大小、碳化物的分布和均匀性,以及淬火后的组织 Rolling bearings are widely used in various industries. According to the working conditions of rolling bearings, the bearing steel must have good machinability, hardenability and hardenability (> HRC61), can withstand high compression loads without pitting, and can Wear and fatigue resistant to spalling. According to the requirements of rolling bearing, the service life of bearing with high cycle stress often does not depend solely on the chemical composition and static strength of steel. However, the structure, shape, size, and size of non-metallic inclusions (especially oxides) The distribution and uniformity of carbides, as well as the structure after quenching