A round baler for harvested product comprises a housing, a pressure chamber with walls limiting the pressure chamber at an end side and with driven transporting elements limiting the pressure chamber at a peripheral side and forming a harvested product inlet opening, a drivable transporting rotor arranged near the inlet opening for closing the inlet opening, and a drive provided for driving the transporting elements and the transporting rotor and formed so that during the formation of a bale the drive drives the transporting roller in a form-locking manner and during a time of ejection of the bale the drive drives the transporting rotor frictionally.