Active parts: flywheel, pressure plate, clutch cover, etc. Driven part: driven disc, driven shaft (i.e. the first shaft of the transmission); Pressing part: pressing spring; Operation mechanism: separation lever, separation lever supporting column, swing pin, separation sleeve, separation bearing, clutch pedal, etc.
There are many variations with the number of friction surfaces used, the form of the compression spring and the position in which it is installed, as well as with the handling mechanism. According to the number of driven disc is divided into single disc clutch and double disc clutch. The single disc clutch is mainly used in cars and light goods vehicles, while the double disc clutch transmits greater torque, so it is mainly used in medium and heavy vehicles.