A round baler is provided for producing bales. The baler has a bale-forming chamber, at least one roller that is driven and that defines a part of an extent of the bale-forming chamber and that is mounted on a moving holder. Continuous, flexible bale forming means are driven and define another part of the extent of the bale-forming chamber. The bale forming means contact a first rotating body and a second rotating body, of which the first rotating body is mounted on the holder. It is proposed that the second rotating body is coupled with the holder with respect to motion by a drive connection, so that both move together with the growing bale.