Abstract: The invention discloses a power transmission arrangement for a compactor, in which a roller is installed to both end-pieces of a roller frame. In both end-pieces, there are bearing assemblies supporting the roller. In addition, in at least one end of the roller there is a hub motor, which is arranged to rotate the roller. The bearings of the hub motor form the bearing assembly supporting the end of the roller. In addition, the roller is supported from the end-piece with the aid of the hub motor and a universal joint. The universal joint transmits moment and permits a variation in the angle between the roller and the end-piece.