Carring 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 maintenance. 2.Small vibrating and long lifespan. 3.The flexibility of sealing methods. 4.Several labyrinth seal achieve dustproof and waterproof. 5.High accruate steel pipes ensure the rollers with low vibration and noise.