轴承钢不同冶炼方法对轴承额定动负荷系数b_m的影响

Effect of Different Smelti'ng Processes on the Factor b_m of Bearing Dynamic Load rating.

试验表明,我国可以采用ISO 286—1977标准推荐的b_m值,即对于电炉钢,b_m=1;真空脱气轴承钢,b_m=1.3;电渣轴承钢,b_m=1.7。附图3幅,表6个。

The factor bm recommended by ISO 286-1977 can be adopted in our bearing industry, that is, bm = 1, for electric steel; bm = 1.3, for vacuum degassed steel; bm=1.7, for electroslag steel.