Patent ID: 9520261
Filing Date: 2016-12-13
CPC Classification: H01J

Claim Text:
1. A bearing unit for rotary anodes of X-ray tubes, having a shaft and a flange element on which a rotary anode is attachable, wherein the bearing unit is insertable into a receptacle within the X-ray tube and is lockable in place therein, the shaft is received by way of a first bearing element and a second bearing element, the first bearing element and the second bearing element are in each case composed of an angular ball bearing which is disposed on the shaft and has an internal ring and an external ring, at least one spacer element is attached between the internal rings of the first bearing element and of the second bearing element and/or between the external rings of the first bearing element and of the second bearing element, wherein the angular ball bearing of the second bearing element is fastened by way of a bracing element on the shaft, wherein the bracing element is configured as a tapered bracing element, and wherein the bracing element is fixed by way of a plastically deformed end region of the shaft.