Patent ID: 8342493

Claim:
A turning roll system for rotating a cylindrical workpiece, the turning roll system comprising: a first motor drive; a pair of drive rollers operatively connected to the first motor drive, the pair of drive rollers being spaced laterally from one another and arranged for frictional rolling engagement with the workpiece to cause the workpiece to rotate about a workpiece axis; a pair of idler rollers spaced axially from the pair of drive rollers and arranged for frictional rolling engagement with the workpiece, at least one of the pair of idler rollers having an axis of rotation extending nonparallel to the workpiece axis; and a pair of idler axles respectively supporting the pair of idler rollers, at least one of the pair of idler axles being pivotable about a pivot axis of the idler axle to adjust orientation of the axis of rotation of the idler roller supported thereby; wherein the axis of rotation of the at least one idler roller remains nonparallel to the workpiece axis in all possible adjustment orientations.