... :Carrying 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 ... , effective sealing system,(2).High accurate steel pipes ensure the rollers with low vibration and noise.(3).Multi-labyrinth seals achieve ...