Imprint Contact 868 Videos
900.000 Callings


Wheel change
Save Energy

Video Autom. Transmission
Video Power Flow
Video Add. Information
Video 6-gears Automatic
Video 7-gears Automatic
Video 8-gears Automatic
Video Four-wheel Drive)
Video Autom. Transm. (bus)
Video Autom. Transm. (repair)
Video Planetary Gearbox
Video Comb. Planetary Set
Video Multi-disc Clutch

Video Free-wheel
Video Transmission Box
Video Fuzzy Logic
Video Semi Autom. Transm.
Video Cont. Var. Transm.
Video Chain CVT-gearbox
Video Tractor
Video Combine Harvester
Video CVT for Tractor
Video Var. Transmission
Video Seq. Gearbox 1
Video Seq. Gearbox 2
Video Seq. Gearbox 3
Video Seq. Gearbox 4
Video D.-clutch Gearbox 1
Video D.-clutch Gearbox 2
Video Transmission control

Video Transmission ratio
Video Planetary gearbox
Video Hydraulic ratio
Video Two shafts gearbox

Video Automatic transmission 1

          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

Multi-disc Clutch

Internal plates-> shaft, external plates-> casing, axially movable

The multiple-disc clutch connects two shafts (drive-coupling) with each other, or as a rib brake, a shaft with the casing (brake clutch). If the working pressure of the clutch is electrically controlled (figure 1), this pushes relatively steadily against a diaphragm spring onto all the axially movable ribs (friction washers). Because, e.g., first, third, fifth etc. are solidly connected inside with the shaft, and second, fourth, sixth etc. outside with a bell-shaped casing, a force-locked connection is produced between the shaft and the casing.

Dry-clutches have an advantage over oil-bath clutches

There are also multiple-disc clutches which are operated directly, e.g., as an oil-bath clutch in mopeds or as a dry clutch in motorcycles (figure 7). Whereby, the dry clutch has the fundamental advantage of developing higher friction. Apart from this, any oil remaining in the clutch causes less drag momentum. The oil-bath clutches are rather less problematic in normal use.

The more automation, the more clutch plates

As can be seen in the above figures, the operational areas of multiple-disc clutches in the drive-system are varied. They are found in clutches, automatic-, transfer gearboxes and final drives, mostly as a drive-, seldom as a brake clutch. With the automation of the clutch they have increased somewhat because they react, particularly as an oil-bath clutch, more gently than e.g., a single-disc dry clutch. The better the automatic control, and the larger the diameter, the more likely that its proliferation will also decrease again. 09/08
               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

Our E-Book advertising