Gear accuracy: JIS B 1702-1 Equivalent to N7 grade Tooth profile: Ordinate teeth Pressure angle: 20° Material: S45C Heat treatment: Induction hardening on the tooth surface Tooth surface hardness: 50-60HRC Surface treatment: Black dye (The fastening parts, teeth and additional working parts are not black染色。 ) 牙齿数量:44 形状:S1MA 标准圆直径(mm):110 牙齿宽度(mm):25 孔直径(mm):35 模块:2.5 (mm):75 boss长度(mm):(左)10(右)18 牙齿表面饰面:Grind 螺栓尺寸:M6 x 20 螺栓数:8 灌木直径:62