Gear precision grade

Gear precision grade chart

 

 

Grade StandardPrecision grade
JIS(Japan)N0N1N2N3N4N5N6N7N8N9N10N11N12
JIS-B1702-02(new)
JGMA(Japan)12345678
JIS(Japan)012345678
JIS-B1702(old)
PRC(China)0123456789101112
GB10095~1009
ISO ( International)0123456789101112
DIN(Germany)123456789101112
 3960~3967
GOST(USSR)3456789101112
BS(UK)A1A2BCD
FN(France)ABCDE
ANSI(USA)4321
AGMA(USA)161514~131210108