Table 1.

Description of the pattern labels of planetary gearbox data.

Pattern Label	Gearbox Condition	Input Speed (rpm)	Load
1	Normal	600, 1200 and 1800	Zero
2	Pitting tooth	600, 1200 and 1800	Zero
3	Chaffing tooth	600, 1200 and 1800	Zero
4	Chipped tooth	600, 1200 and 1800	Zero
5	Root cracked tooth	600, 1200 and 1800	Zero
6	Slight worn tooth	600, 1200 and 1800	Zero
7	Worn tooth	600, 1200 and 1800	Zero