XH型（节距=22.225mm） 规格节线长（mm)齿数463XH1177.9353508XH1289.0558534XH1355.7061560XH1422.4064570XH1444.6365580XH1466.8566604XH1533.5369610XH1555.8070630XH1600.2072648XH1644.7074700XH1778.0080735XH1866.9084752XH1911.3586767XH1933.6087780XH1978.0089770XH1955.8088800XH2022.4891805XH2044.7092840XH2133.6096850XH2159.0097870XH2200.0099901XH2289.18103919XH2333.63105927XH2354.58106980XH2489.201121000XH2533.651141120XH2844.801281260XH3200.401441400XH3556.001601496XH3778.001701540XH3911.601761575XH4000.501602275XH5778.50260