Общий каталог Yamawa 2022 - 2023 - страница 1170

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Class of external threads and class of Dies

■ Example : M6X1

Class of external threads Class of Die

4h

6g P1 SP-D/HS-D 8g P2 Old JIS 1st Class

Old JISDPOS2S5
2nd Class
Old JIS
3rd Class
DⅡ

0 -100 -200 0 -100 -200

（μm） （μm） Basic Pitch Diameter 5.350mmBasic Pitch Diameter 5.350mm Basic Pitch Diameter 5.350mmBasic Pitch Diameter 5.350mm

Class of Die shows pitch diameter tolerance of Testpiece External Threads cut by the die.

Dies typeClass of dieApplication
SPD / HSDP2When the target is the middle of the tolerance of Class 2 or 6g external thread
- -P1（Standards）When the target is the minimum limit size of Class 2 or 6g external thread
DPOS5（Standards） S2For Class 2 or 6g external thread For Class 1 or 4h external thread
DⅡFor Class 2 or 6g external thread

Technical Inf