... No. : 6204/6205 (4) Material: carbon steel Conveyor Friction IdlerConveyor Idler Rollers are used to support the conveyor belt ... Roller, Vertical Roller, Side Roller; Cone Aligning Roller, Friction Adjusting Roller; Spiral Cleaning Roller; Roller Group etc.2 ... /red/yellow color, hot galvanized3. Advantage:(1) Low friction coefficient, waterproof, effective sealing system,(2).High accurate steel ...