... three times more than SBR roller at least. Aluminium drum rubber roller, with its light weight, high concentricity, the wear- ... machine to reduce the load vibration, and to increase the rubber roller's life. TypeWheels TypeNestedSpec. (Inch)468101214202528External Diameter (mm)223 ... .5±0.5ColorBrown, white, amber,CreamHardness Shore A90-95degree Rice Rubber Rollers For Rice Processing Machine