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 Number of teeth: 15 Standard circle diameter (mm): 42.43 Tooth width (mm):20 孔直径(毫米):12 总长度(mm):35 扭曲方向:R形状:R形状:S1 boss直径(MM):35 boss长度(MM):15 Boss Tip圆形直径:46.43直径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