Wheel disk assembly having simplified sealing-plate mounting

A wheel disk assembly comprising:

• a wheel disk which has a blade-locating region and at least one annular projection spaced apart in the axial direction and at least one annular slot which is arranged between the blade-locating section and the annular projection, and with a plurality of blade devices which blade devices are fastened on the blade-locating section in a circumferentially distributed manner, and with a plurality of sealing plates which sealing plates, by the edge region pointing toward the disk axis, are fixed in the annular slot in the axial direction, and
• a recess which recess extends from the annular slot in the axial direction into the blade-locating section and/or into the annular projection and the length of which in the circumferential direction corresponds at least to the length of the edge region of the sealing plates.