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Ground Helical Gears
JIS Grade N6 (JIS B 1702-1:1998)JIS Grade 2 (JIS B 1702:1976) | Heat treatmentNormalized, teeth surfaces induction hardened |
Rotating plane | Core hardnessHB225260 |
Standard full depth | Surface hardnessHRC5055 |
20 | Surface treatmentBlack oxide exceptground surfaces |
2130' | Surface finishGround |
SCM440 (Alloy steel) | Datum reference surfacefor gear grindingBore |
KHG Ground Helical Gears