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Gear precision grade chart
| GRADE STANDARD |
PRECISION GRADE |
| JIS（JAPAN） |
N0 |
N1 |
N2 |
N3 |
N4 |
N5 |
N6 |
N7 |
N8 |
N9 |
N10 |
N11 |
N12 |
| JIS-B1702-02（NEW） |
| JGMA（JAPAN） |
|
|
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
|
| JIS（JAPAN） |
|
|
|
|
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
| JIS-B1702（OLD） |
| PRC（CHINA） |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
| GB10095~1009 |
| ISO ( INTERNATIONAL） |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
| DIN（GERMANY） |
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
| 3960~3967 |
| GOST（USSR） |
|
|
|
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
| BS（UK） |
|
|
|
|
|
A1 |
A2 |
B |
C |
D |
|
|
|
| FN（FRANCE） |
|
|
|
|
A |
B |
C |
D |
E |
|
|
|
|
| ANSI（USA） |
|
|
|
|
|
4 |
3 |
2 |
1 |
|
|
|
|
| AGMA（USA） |
|
|
16 |
15 |
14~13 |
12 |
10 |
10 |
8 |
|
|
|
|
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