... 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 ... :(1)Low friction coefficient, waterproof, effective sealing system,(2). High accurate steel pipes ensure the rollers with low vibration and ... 0 mm we can produce according to the customers requirement. Belt Conveyor idler roller