roller LMM GROUP can design all kinds of conveyor roller idlers Material:pvc,rubber,stainless steel,hdpe,galvanized steel etc. rollerFree roller,Tapered roller, ... Grooved roller,Sprocket roller,Drive taper roller,Accumulating roller etc.Roller DiaShaftDiaTube ThicknessRoller LengthTube structureSurface treatmentErecting structureΦ16 ...