The invention relates to a fixing device (1) for fixing at least one support arm (45), in particular a spring arm. Said device comprises a base body (2), which has a connecting section (4) located in the axial direction (28) at the upper end of the base body (2) for suspending the fixing device (1) and at least one bearing section (5), which is at least partially cylindrical, whereby a bearing sleeve (44) of the support arm (45) can be mounted onto said bearing section (5). The latter (5) lies in the axial direction (28) at the lower end of the base body (2) and projects axially beyond the rest of said base body (2). In addition, a retaining ring (46) can be fixed to the bearing section (5) for retaining the bearing sleeve (44) of the support arm (45) on the bearing section (5). The bearing sleeve (44) is at least indirectly supported on the retaining ring (46) and can be rotated about the axis (3) of the bearing section (5).