齿轮准确性: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或更少) S5M Standard circle diameter (mm): 56 Tooth width (mm): 20 Hole diameter (mm): 15 Module: 2 Tip circle diameter: 60 Tooth surface finish: Cutting Bolt size: M4 x 15 Number of bolts: 4 Bush diameter: 37