Abstract: A pressure plate unit for a pulled-type friction clutch comprises a presser plate which is connected with the diaphragm spring through retaining elements to ensure the disengagement action. The retaining elements extend substantially radially within a circle along which the pressure plate rests on the diaphragm spring. The retaining elements are secured non-rotatably in relation to the presser plate and the diaphragm spring. Different retaining elements are proposed. Distance bolts screwed into the presser plate with leaf spring elements can be used. Likewise U-shaped springs can be used which are hooked into radial openings of a bead of the presser plate. Furthermore the retaining elements can be secured on the diaphragm spring or an additional ring and locked with the pressure plate by means of a circumferential groove of the bead.

Abstract: The clutch disc for a motor vehicle friction clutch comprises a friction lining carrier mounted rotatably on a hub, a torsional vibration spring means and a torsional vibration friction damper. The friction damper is arranged between side discs of the friction lining carrier and includes a spring of annular disc form and at least one friction ring seated in the support path. The installation height of the axially acting spring is variable after the assembly of the clutch disc, by an adjusting device. The adjusting device can be two adjusting elements rotatable in relation to one another, which vary the installation height of the spring by steps or steplessly. The adjusting device can also comprise permanently deformable adjusting elements or adjusting elements seated with press fit on the hub.

Abstract: The pressure plate for a motor vehicle friction clutch comprises a clutch cover, a non-rotatable but axially displaceable presser plate and a diaphragm spring which is supported in the region of its external circumference on the presser plate and on a smaller diameter on the clutch cover. Securing elements retained on the clutch cover pass through openings of the diaphragm spring and hold the diaphragm spring between the two wire rings, of which the wire ring placed on the side of the presser plate is axially undulated. The regions of the wire ring which form undulation crests in relation to the diaphragm spring extend below the support faces of the securing elements. A projection is formed by bending or as additional part on the wire ring and fixes the wire ring non-rotatably.