Patent ID: 8657494

Claim:
A swiveling device for a swiveling C-arm ( 8 ) of an X-ray unit, the swiveling device comprising: a motorized drive unit ( 24 ); an adapter ( 20 ) removably attachable to the C-arm ( 8 ) concentrically with a swiveling axis (A) thereof, via which the C-arm ( 8 ) connects to the drive unit ( 24 ) in a driving manner, and to an angular position encoder ( 50 ) for recording the swivel angle of the C-arm ( 8 ); and a friction clutch arranged between a drive motor of the drive unit ( 24 ) and the adapter ( 20 ), wherein a part of the drive unit ( 24 ) connected to the adapter ( 20 ) forms a part of the friction clutch.