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发明授权
CN105526256B 轴承滚道圈及滚动轴承 有权

轴承滚道圈及滚动轴承
摘要：
一种轴承滚道圈及滚动轴承，所述轴承滚道圈由实施了淬火处理及回火处理的高碳铬轴承钢构成，包括：内层部，由回火马氏体或索氏体构成，维氏硬度超过490HV且为710HV以下；及表层部，以包围上述内层部的周围整体的方式形成，由回火马氏体构成，且硬度比上述内层部硬。
摘要（英）：

A bearing ring formed of quenched and tempered high carbon chromium bearing steel, including an inner layer portion formed of tempered martensite or sorbite and having a Vickers hardness of more than 490 HV and 710 HV or less, and a surface layer portion formed to enclose an entire periphery of the inner layer portion, formed of tempered martensite, and having a higher hardness than the inner layer portion.

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