This device is used for physiotherapy treatment for back problems. The individual elements must be able to be adjusted precisely to the individual size of the patient to make a linear movement possible. Since this adjustment has to be made several times a day, the mechanism should be smooth-running and quiet. The vertical adjustment of the head and back support as well as the adjustment of the hand bracket were therefore implemented using lubricant-free drylin® linear plain bearings from igus®. The reliable and quiet rotation of the seat was made possible by an iglidur® PRT polymer slewing ring bearing.