An inter shaft bearing assembly 1, wherein said inner face of said first shaft defines {HEAD ~ a first conical surface} diverging in the downstream direction at {TAIL ~ an angle} of about 40 degrees relative to the axis of said turbo engine, a second conical surface of low conicity following downstream from said first conical surface, two successive cylindrical surfaces following downstream from said second conical surface, and a radial face between said cylindrical surfaces, 
An inter shaft bearing assembly 1 , wherein said inner face of said first shaft defines { HEAD ~ a first conical surface } diverging in the downstream direction at { TAIL ~ an angle } of about 40 degrees relative to the axis of said turbo engine , a second conical surface of low conicity following downstream from said first conical surface , two successive cylindrical surfaces following downstream from said second conical surface , and a radial face between said cylindrical surfaces ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH