Ceramic disc cartridge for mixing fluids in faucets and the like

A ceramic disc cartridge, for mixing fluids in faucets, said cartridge having a cartridge body and a cover therefore, a collar engaged in said cover and a driving rod rotatably coupled to said cartridge body for swingably driving a movable ceramic disc, said driving rod having a first spherical body defined in a middle portion thereof and engaged in said collar, said collar having a cylindrical portion and bottom flange defining detent elements which can be engaged with counter-detent elements provided in said cover to prevent said cylindrical portion of said collar from turning in said cover, said driving rod being provided, at a bottom end portion thereof, with a second spherical body be engaged in a recess defined on a coupling body for connection to said movable ceramic disc, said first and second spherical bodies having a same vertical axis coinciding with a vertical axis of said driving rod, a bush engaged in said collar and having a recess therein for engaging said first spherical body, said bush having a smoothly cylindrical outer surface and a bottom annular flange.