Mounting for the rotary anode of an x-ray tube

A mounting for the rotary anode of an x-ray tube, comprising

• a first, radially outer sleeve forming the rotor of an electric motor,
• a rotary anode of an x-ray tube attached centrally to one end of the rotor,
• means for supporting the rotor and the anode comprising
• a second, radially intermediate anode-supporting sleeve telescoped within the first, outer sleeve and spaced radially therefrom, the second sleeve being disposed coaxially of the first sleeve and having
• a supporting means attached to the end thereof which is remote from the anode,
• a central shaft extending longitudinally of the first sleeve and the second sleeve coaxially of said sleeves,
• a third, intermediate sleeve extending longitudinally of the shaft and other sleeves, and disposed between the shaft and the second sleeve and spaced radially from both the shaft and the second intermediate sleeve,
• an antifriction bearing at each end of the shaft, each of the bearings having
• an inner race and
• an outer race, the inner race of each bearing being mounted upon the shaft at respective opposite ends thereof, the outer race of each of the bearings being telescoped within and attached to the respective ends of the third intermediate sleeve,
• means for preventing the third intermediate sleeve from appreciable axial movement with respect to the second supporting sleeve,
• an annular connecting member extending between and connecting the first, rotor sleeve and the inner race of one of the bearings and the shaft at such bearing, and
• resilient annular means disposed between the second, supporting sleeve and the third, intermediate sleeve in transverse alignment with each of the anti-friction bearings, and
• a centering sleeve mounted within, and accurately engaging the inner wall of the first, rotor sleeve, the centering sleeve at the end thereof adjacent the anode having the shape of a collet, the end wall of which is spaced from the inner wall of the first rotor sleeve which is adjacent the anode, the outer peripheral surface of the member connecting the rotor sleeve with the inner race of the bearing adjacent the anode, and the end of the central shaft at such location having an interference fit with the circular inner peripheral surface of the collet.