齿轮精度:N8年级热处理前的JIS B 1702-1 牙齿概况:常规牙齿 压力角:20° 材料:S45C 热处理:牙齿表面上的诱导硬化 牙齿表面硬度:50-60hrc dye no process of progance of thgbr/re process Shape: S2K Standard circle diameter (mm): 240 Tooth width (mm): 20 Hole diameter (mm): 28 Module: 2 Tooth tip circle diameter: 244 Total length (mm): 30 Key groove b2 x t2 (mm): 8 x 3.3 Boss diameter (mm):90 boss长度(mm):10 孔直径耐受性:H7 牙齿表面饰面:切割 tap:m6