该试验机可用于评定各种材料轴承用球的滚动接触疲劳性能。
The tester may be used to evaluate contact fatigue performances of balls made of various materials.
在滚动接触疲劳试验时循环载荷的作用下，界面处的石墨相当于孔洞引起应力集中。
Graphite plays a role as pores in the interface and increases the stress concentration under cyclic loading.
在滚动接触疲劳试验时循环载荷的作用下，界面处的石墨相当于孔洞引起应力集中。
Graphite plays a role as pores in the interface and increases the stress concentration under cyclic loading.
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