roller idle for the conveyor: 1.Dia: 60-219mm 2.used in mining , ... dia 60-219mm.length 190-3400mm,which are used in the steel industry,habor,coal industry, power industry,cement industry ... Bearing: single/double row deep groove,5.Seals:inner seals with labyinth seals and retention cap 6. Welding :mixed gas ... ordinary painting ,hot galvanized painting ,static spraying painting idel roller for the conveyor