Roller-bar grizzly (1) for the cleaning of crops, particularly sugar beets, which a number of with parallel axes (3) arranged one after the other, in one another in the disk rollers (17), wherein one, several or all of which has a hub (10) disks (2) of a roller (17) at least partially of a permanently elastic material is / are formed, characterised in that the discs (2) on one or both of its lateral surfaces a, elongated radially arranged, projection (5), with the projection (5) of a hub (10) of the disk (2) to the outer circumference of the disk (2) extends in the radial direction.
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