本条数据采用的设备为CA6140车床及相应的加载设备，实现对小试件的对称四点弯曲加载，从而进行旋转弯曲疲劳试验，加载后配合表面的名义弯曲应力为160MPa。在固定旋转次数下分别进行试验。拍摄设备为普通照相机。实验完成后试样均为发生断裂，数据为试验后的试样及其对应的循环次数，以便之后对试件进行编号以进行区分。

10：旋转次数为2×10⁵次后的轴照片

30：旋转次数为2×3×10⁵后的轴照片

50：旋转次数为2×5×10⁵后的轴照片

70：旋转次数为2×7×10⁵后的轴照片

100：旋转次数为2×10×10⁵后的轴照片

The equipment used in this article is the CA6140 lathe and the corresponding loading equipment to realize the symmetrical four-point bending loading of the small specimen, so as to carry out the rotary bending fatigue test. The nominal bending stress of the mating surface after loading is 160MPa. The tests were carried out separately at a fixed number of rotations. The shooting equipment is an ordinary camera. After the completion of the experiment, all the samples were broken, and the data were the samples after the test and the corresponding number of cycles, so that the samples could be numbered later for differentiation.

10: Photo of the axis after the number of rotations is 2×105

30: Photo of the axis after the rotation number is 2×3×105

50: Photo of the axis after the number of rotations is 2×5×105

70: Photo of the axis after the rotation number is 2×7×105

100: Photo of the axis after the number of rotations is 2×10×105