Abstract: The present invention relates to a roller bed (1) for rotating a generally circular work piece (5) in circumferential direction. The roller bed (1) comprises two supporting members (2) and each supporting member (2) comprises a top roller (3) and a bottom roller (4). The rollers (3, 4) are adapted for simultaneous mechanical drive in the same circumferential direction. Each top roller (3) is also connected to an electrical clutch which is adapted for disengaging the top roller (3) from the simultaneous mechanical drive. The present invention further relates to a system of roller beds (1).