When the motor - car has to be sat in motion first of all it is necessary start the engine.
When the flywheel revolves these discs revolve with it.
This device is called a clutch.
They are attached to the clutch shaft by means of splines.
Clutches are divided into two main groups: cone clutches and disc clutches.
. The, multiple clutch is composed of a number of driving and driven discs.
