Tooth Root Bending Fatigue Performance of Shot Peening TM210A Steel Spur Gear

Table 5

Tooth root bending fatigue experimental data of the shot peened TM210A steel gear.

Experiment number	Methods	Stress level (MPa)	Fatigue life (cycles)	Comment
1	Group method	1460	122789	Broken
2		1460	140293	Broken
3		1460	195551	Broken
4		1270	811123	Broken
5		1270	387269	Broken
6		1270	335954	Broken
7		1200	1229039	Broken
8		1200	1079320	Broken
9		1200	827213	Broken
10		1200	314657	Broken
1	Staircase method	1100	10000018	Run out
2		1120	996017	Broken
3		1100	10000035	Run out
4		1120	2455601	Broken
5		1100	10000023	Run out
6		1120	10000036	Run out
7		1140	991191	Broken
8		1120	4304444	Broken
9		1100	10000032	Run out
10		1120	10000020	Run out
11		1140	10000020	Run out
12		1160	1860227	Broken
13		1140	10000018	Run out
14		1160	1859416	Broken