Printing unit of a rotary printing press

A printing unit of a rotary printing press comprising:

• at least one forme cylinder;
• a forme cylinder barrel, said forme cylinder barrel having spaced first and second forme cylinder barrel ends including first and second forme cylinder barrel end support surfaces;
• a forme cylinder intermediate support ring with a forme cylinder intermediate support ring outer support surface, said forme cylinder intermediate support ring being positioned between said spaced first and second forme cylinder barrel ends;
• and
• an ink unit, said ink unit having at least one of an ink roller and an ink transfer cylinder, said at least one of said ink roller and said ink transfer cylinder having barrel ends, said at least one of said ink roller and said ink transfer cylinder barrel ends having barrel end support surfaces, said at least one of said ink roller and said ink transfer cylinder further having an intermediate support ring with an outer surface between said barrel ends, said intermediate support ring outer surface of said forme cylinder intermediate support ring acting against said intermediate support ring outer surface of said intermediate support ring of said at least one of said ink roller and said ink transfer cylinder and said barrel end support surfaces of said forme cylinder barrel and of said at least one of said ink roller and said ink transfer cylinder barrel acting against each other.