Construction of a single-disc dry clutch, currently used in cars.
The main parts of the clutch are: engine flywheel, clutch shaft, clutch disc, pressure plate, clutch housing and mechanical or hydraulic clutch.
Construction of the clutch disc with a torsional vibration damper. The outer part of the clutch disc is cut from slightly corrugated sheet steel, to which the friction linings are attached by means of rivets or gluing. Due to the resilience of the disc sections, smoother engagement of the clutch is achieved. The friction linings are made of an abrasion-resistant material, e.g. made of plastic or asbestos braid, reinforced with copper wires and saturated with a substance to increase the coefficient of friction.
The task of the damper connected to the disc hub is to damp torsional vibrations, transferred from the driveline to the engine or vice versa.
Release levers (impression) they are used to move the pressure plate away from the clutch plate. These are two-arm levers pivotally mounted in brackets attached to the cover (covers) couplings. The lever end of the longer arm rests on the shut-off bearing (impression), and the shorter arm is articulated with the eye of the pressure plate. The longer lever arm is equipped with an adjusting screw. Three release levers are usually used in modern single-plate clutches, for even pressure.