齿轮精度:JIS B 1702-1 N8等级等效 牙齿概况:普通牙齿 压力角:20° 材料:S45C 热处理:无 牙齿表面硬度:(194hb或SILLE) Standard circle diameter (mm): 180 Tooth width (mm): 30 Hole diameter (mm): 30 Module: 3 Tip circle diameter: 186 Tooth surface finish: Cutting Bolt size: M5 x 18 Number of bolts: 4 Bush diameter: 56