SGE series Module 0.5 Pressure angle 20° (regular teeth) Number of teeth: 70 Shape: B1 Standard circle diameter d(mm): 35 Hole diameter b(mm): 5 Tooth width b(mm): 5 Module m: 0.5 Number of teeth Z: 70 Tip circle diameter DA(mm):36 牙齿宽度W(mm):5 集线器直径DH(mm):25 集线器长度LH(mm):8 总长度L(mm):13