... all kinds of idler. Carrier idler,return idler etc. HDPE,steel,rubber etc. 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 ... Several labyrinth seal achieve dustproof and waterproof.5.High accruate steel pipes ensure the rollers with low vibration and noise. BELT ...