The clutch pressure plate creates a friction system and its force amount depends on the friction between the flywheel and the clutch plate, also on how much force the spring puts on the pressure plate.

 

There are two types of clutch mechanisms. Both have a pressure plate and housing, and depending on its type is driven by springs or a diaphragm.

 

A Pressure Plate
is a steel disc with a circular crown form. On one side faces the housing, through springs or the diaphragm and on the other side the clutch disc. ICHIBAN^® maintains strict control on the measures, of both sides, following the global standards in each application.

 

The housing
Serves as a clutch cover mechanism, attached to the inertia flywheel (by means of screws). According to the model we have the ones with springs or diaphragm, and the ones with drive handle.

 

The diaphragm
Realizes the necessary effort to imprison the clutch disc between the flywheel and the pressure plate. At the moment, the spring system has been replaced by the diaphragm system. The diaphragm is constituted by a steel disc, with conical form, in which you find radial cuts, whose elasticity causes the necessary pressure to maintain the pressure plate against the clutch disc.

When practicing these cuts, the disc is internally divided in several elastic fingers that exert the function of the drive handle studied in the clutches with springs.