Torsional vibration damper, in particular single-mass flywheel or dual-mass flywheel, having a displacement-controlled adjusting device for adjusting a wear-induced faulty spacing of a pressure plate from a counterplate of a friction clutch of a motor vehicle, the adjusting device having - a spindle shaft with a spindle shaft thread, - a spindle nut which interacts with the spindle shaft thread of the spindle shaft and can be moved translationally as a consequence of a rotation of the spindle shaft, - a drive pinion for driving the spindle shaft, - a drive pawl for driving the drive pinion in a displacement-controlled manner, and - a receptacle for the spindle shaft, which receptacle fixes the said spindle shaft axially, the spindle nut being operatively connected to an adjusting ring which can be rotated about a rotational axis of the clutch, which rotational axis is oriented transversely with respect to the spindle shaft, and can be positioned as a consequence of a rotation about the said rotational axis for adjusting the wear-induced faulty spacing in the direction of the rotational axis of the clutch, characterized in that the drive pawl interacts with the pressure plate and can be moved axially with the latter, and in that the spindle nut is operatively connected by means of a transmission element (26, 27) to the adjusting ring in such a way that tensile forces in the direction of the spindle shaft axis can be transmitted to the spindle nut and torques transversely with respect to the spindle shaft axis cannot be transmitted to the spindle nut, a first flange of the transmission element (26, 27) and an end side of the spindle nut being of spherical or partially spherical or partially cylinder shell-shaped configuration and/or the first flange being of flexible configuration and/or the first flange being arranged on the transmission element (26, 27) flexibly or by means of a joint. - a spindle shaft with a spindle shaft thread, - a spindle nut which interacts with the spindle shaft thread of the spindle shaft and can be moved translationally as a consequence of a rotation of the spindle shaft, - a drive pinion for driving the spindle shaft, - a drive pawl for driving the drive pinion in a displacement-controlled manner, and - a receptacle for the spindle shaft, which receptacle fixes the said spindle shaft axially, the spindle nut being operatively connected to an adjusting ring which can be rotated about a rotational axis of the clutch, which rotational axis is oriented transversely with respect to the spindle shaft, and can be positioned as a consequence of a rotation about the said rotational axis for adjusting the wear-induced faulty spacing in the direction of the rotational axis of the clutch, characterized in that the drive pawl interacts with the pressure plate and can be moved axially with the latter, and in that the spindle nut is operatively connected by means of a transmission element (26, 27) to the adjusting ring in such a way that tensile forces in the direction of the spindle shaft axis can be transmitted to the spindle nut and torques transversely with respect to the spindle shaft axis cannot be transmitted to the spindle nut, a first flange of the transmission element (26, 27) and an end side of the spindle nut being of spherical or partially spherical or partially cylinder shell-shaped configuration and/or the first flange being of flexible configuration and/or the first flange being arranged on the transmission element (26, 27) flexibly or by means of a joint.