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

Table 13

Data processing of the gear bending fatigue life.

Ordinal number	Fatigue life at different stress levels
	I		II		III		IV
	Lifetime	No.	Lifetime	No.	Lifetime	No.	Lifetime	No.
1	50892	A8-4-81	141594	A10-3-78	190347	A1-2-76	543860	A17-3-75
2	79582	A7-2-81	156529	A6-1-78	194017	A2-2-76	726517	A19-2-75
3	111899	A7-3-81	251908	A2-1-78	241713	A8-1-76	1227752	A6-2-75
4	112428	A3-4-81	269224	A17-2-78	278029	A1-1-76	1324990	A10-3-75
5	124084	A10-2-81	342719	A7-4-78	811387	A4-1-76	1748937	A4-2-75
6	156865	A11-1-81	376832	A11-2-78	1125686	A1-3-76	1939033	A15-2-75
7	—	—	—	—	1401843	A2-4-76	2057398	A17-4-75
	—	—	—	—	—	—	4251335	A13-4-75