KHK硬化螺丝齿轮SN2.5-20RH 钢螺丝齿轮 SN2.5-20RH

Gear accuracy: JIS B 1702-1 Before N9 grade heat treatment
Heat treatment: Induction hardening on the tooth surface
Tooth surface hardness: 50-60HRC
Surface treatment: Black dye (no re-black dye after hardening)
Module: 2.5
Number of teeth: 20
Standard circle diameter (mm): 70.71
Tooth width (mm): 22
Hole diameter (mm): 20
Total length (mm): 38< Twist direction: R Shape: S1 Boss diameter (mm): 60 Boss length (mm): 16 Boss tip circle diameter: 75.71 Tooth surface finish: Cutting Gear reference cross section: Right angle Right angle Pressure angle (°): 20 Torsion angle (°): 45 Hole diameter tolerance: The hole diameter尺寸将由于硬化而变形。 （孔直径尺寸公差而不是H7等级）
牙齿剖面：常规牙齿

S45C

0.929kg

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• rohs2