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Video Clutch
Video Dry Clutch 1
Video Dry Clutch 2
Video Dry Clutch 3
Video Self Adjust. Clutch
Video Clutch - Power Flow
Video Fly Wheel
Video Fly Wheel Test
Video Clutch Disc 1
Video Clutch Disc 2
Video Diaphragm Spring
Video Clutch Pressure Plate
Video Clutch Controller
Video Self-adj. Mechanism
Video Hydraulic Operation 1
Video Hydraulic Operation 2
Video Hydraulic Operation 3
Video Clutch Emergencv
Video Clutch Repair
Video Clutch Housing
Video Double Clutch
Video Double Clutch - Repair
Video Multi-disc Clutch 1
Video Multi-disc Clutch 2
Video Hydrodynamic Clutch
Video Torque Converter 1
Video Torque Converter 2
Video Centrifugal Clutch
Video Haldex Clutch

Video Brake-pedal forces
Video Frictional force

Video Clutch 1
Video Clutch 2
Video Clutch 3
Video Clutch 4
Video Clutch 5

          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Clutch Disc


Provide for an engaging of the clutch free of jerk, compensate tolerances between the surfaces of the pressure plate and the flywheel and diminish resonance in case of the one-piece flywheel of the gearbox.

How it works

In the picture on top you can see in addition to the carrier plate, the spring mounted intermediate layers to the left and to the right. On those the front coatings are riveted. They ensure that the friction surfaces, when the clutch is engaged, fit steadily and enable a soft initial drive. On the inside the clutch disc is connected via a multiple tooth system with the transmission's input shaft, axially movable and rotary-solidly. The tooth system enables the clutch disc to come loose of the flywheel when removing the pressure ring. If the shifting is not possible, e.g., due to rust or if the clutch disc has too much impact, the clutch does not disengage completely and noises during the switching of gears indicate that the gearbox synchronisation is not fully separated.

While engaging the clutch it is clamped between pressure plate and flywheel. If there is no dual mass flywheel mounted, the attached tangential coil springs, (see picture on the inside) allowing a limited radial twist, provide for a damping of gearbox noises (clacking) and other vibrations in the intermediate layers.

Clutch disc linings are produced of organic materials. The resins contained in it serve as a binding agent.


If the clutch disc are examined for a possible defect, besides the visual inspection with control of the thickness of the coating may also be useful a check for disc run-out.


Older coatings of clutch discs can contain asbestos. The coating dust should not be inhaled.

Demands on the brake linings
High heat resistance
High wear resistance
Even at high temperatures, high coefficient of friction

Sort of linings
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2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

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