序号 Ordinal
链号 chain number
节距 Pitch p
内链节内宽 Width between inner plates b1 min
滚子外径 Roller diameter d1
外径 Diameter Ds
厚度 Thickness Hs
销轴外侧至链条 中心线的距离 Distance between outside of pin to centreline of the chain L3
高度Height h2
厚度Thickness T