... 4,NSK bearing, 5.MITSUBOSHI V-belt vibratory road roller walk-behind single drum *Famous brand engine, excellent performance, easy ... hydraulic drive unitVibration Mechanical drive electromagnetic clutchEngine ModelHONDA,GX390178FType Gasoline engine,air cooled, 4stroke, OHV, single cylinder Diesel ... Working weight490kg512kgMAX.working weight520kg542kg walk behind single drum vibratory road roller