Helical Toothed Gear Racks Factory(https://www.stspline.com/product/helical-teeth-racks/)
Technical requirement
Quality Grade: DIN 6
Material: S45C/42CrMo
Tooth profile: helical teeth
Right Hand Angle: 19°31’42”
Hardness treatment: high frequency quenching HRC48-52/ HRC50-55°
Production process: Ground on all sides after hardening