Experimental Analysis of Residual Stress and Bending Strength of Gear Tooth Surface after Shot Peening Treatment

Table 6

Data processing of the bending fatigue test of the gear.

Ordinal number	Fatigue life at different stress levels
	I		II		III		IV
	Lifetime	No.	Lifetime	No.	Lifetime	No.	Lifetime	No.
1	52001	B2-4-78	80295	B16-2-75	189195	B19-1-73	803965	B1-3-72
2	54434	B13-4-78	150568	B6-2-75	532257	B18-2-73	925469	B5-2-72
3	66220	B13-1-78	164084	B18-1-75	879460	B15-4-73	1346204	B4-3-72
4	81369	B1-1-78	224971	B9-2-75	1057880	B2-2-73	2181065	B4-2-72
5	91155	B11-4-78	695260	B11-2-75	1515670	B15-1-73	2395745	B5-4-72
6	154634	B9-1-78	712435	B5-1-75	1721448	B17-2-73	2857876	B11-3-72
7	170261	B16-3-78	1020368	B8-4-75	1811442	B7-4-73	3000000	B19-2-72