... waterproof ,dustproof revovels smooth leak-proof Conveyor idler rollerWe can supply all kinds of idler.Idler type: ... ,89,108,114,127,159 etc.Carring idler,return idler,impact idler,centring idler,spiral idler,comb sharp clean idler,taper ... ensure the rollers with low vibration and noise.Structure: Detailed conveyor roller idler featureRoller idlersDia 50mm-219mm, length 190-3400mm, which ...