{HEAD ~ The camshaft} 3, wherein {TAIL ~ the bore} includes a third radial inner surface area at the connecting portion that is frictionally engaged with the outer surface of the first shaft 
{ HEAD ~ The camshaft } 3 , wherein { TAIL ~ the bore } includes a third radial inner surface area at the connecting portion that is frictionally engaged with the outer surface of the first shaft
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH