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 additional processing or re-black dyeing after quenching) Module: 4 Number of teeth: 15 Standard circle diameter (mm): 84.85 Tooth宽度(mm):30 孔直径(mm):35 总长度(mm):50 扭曲方向:l 形状:S1K boss Dimimeter(mm):70 boss长度(mm)长度(mm):20 20 尖端圆形的牙齿表面:92.85 扭曲角(°):45 孔直径耐受性:H7 键槽:10 x 3.3 tap:m8 M8 牙齿概况:普通牙齿