DESCRIPTION OF GEAR INSPECTION SHEET PARAMETERS
Chart explanation
AL=Mean line in the evaluation range
Profile
| Profile | ISO・DIN | JIS |
|---|---|---|
| Profile angle deviation | fHα | FA |
| Profile form deviation | ffα | FFA |
| Total profile deviation | Fa | FF |
Lead
| Lead | ISO・DIN | JIS |
|---|---|---|
| Lead angle deviation | fHβ | FH |
| Lead form deviation | fβf | FQA |
| Total Lead deviation | fβ | FQ |
JIS 1702-1 1998 ISO 1328-1 1995 DIN 3961 1978
