hdpe impact idler We can supply all kinds of idler.carrier idler,return idler etc.dia60,76,89 etc. hdpe impact idlerCarring idler,return idler,impact idler,centring idler,spiral idler,comb sharp clean idler,taper shaped idler,steel idler and so on.Selecting a idler,Confirming some parameters:Idler dia,Idler shaft dia,Idler tube thk,Idler length,Idler material.1.Stable running,good quality.free ...