... more than 5 mm219150-3500308 310more than 5 mmconveyor roller:1.Roller idlers Dia 63.5mm-219mm, length 150-3500mm, ... power industry, cement industry, etc2.Shaft: 45# STEEL3.Bearing: Double Row Deep Groove Ball Bearing 2RS&2Z with C3 clearance ... welding end7.Painting: ordinary painting, hot galvanized painting, electric static spraying painting, baked paintingBesides we can manufacture the rollers and ...