同步带轮规格STPD/STS型尺寸同步带轮规格/型号节距pb齿高侧圆半径齿槽宽齿底角齿顶角查看S2M20.761.3251.300.10.19详细规格S3M31.111.9751.950.150.28详细规格S4.5M4.51.592.982.930.220.48详细规格S5M51.773.2753.250.250.55详细规格S8M82.835.305.200.40.9详细规格S14M144.959.289.100.71.6详细规格)