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): 275 Tooth width (m m): 50 Hole diameter (mm): 60 Module: 5 Tooth tip circle diameter: 285 Total length (mm): 71 Key groove b2 x t2 (mm): 18 x 4.4 Boss diameter (mm): 130 Boss length (mm): 21 Hole diameter tolerance: H7牙齿表面饰面:切割水龙头:M12