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对穿透感应加热淬火后的限制淬透性钢制的轴承实物进行了系列实验和检测。结果表明：从试样表面至３２０ｍｍ深度均存在压应力，在裂纹源附近存在较大残余压应力的加强作用。淬硬层的基体组织主要为板条马氏体，马氏体含碳量经估测略高于０４％，有较好的韧性。基体上有弥散分布的碳化物Ｍｅ３Ｃ型（Ｍｅ为ＦｅｘＣｒｙＭｎｚ）。心部组织为托氏体。淬硬层中残余奥氏体量仅为５％左右，对应于较高的尺寸稳定性。在上述诸因素综合作用下使材料得以强韧化。
A series of tests and tests were carried out on the bearing hardened steel bearing limited by penetration induction heating and quenching. The results show that there is compressive stress from the specimen surface to the depth of 320 mm, and there is a strengthening effect of larger residual compressive stress near the crack source. The matrix structure of the hardened layer is mainly lath martensite. The carbon content of the martensite is slightly higher than 04%, which shows good toughness. The matrix has dispersed distribution of carbide Me3C type (Me is FexCryMnz). Heart tissue for the care of the body. The amount of retained austenite in the hardened layer is only about 5%, corresponding to higher dimensional stability. The above factors make the material toughening.