X-ray tube bearings

X-ray tube bearings from the market leader

myonic bearing units for X-ray tubes are used by the world’s leading manufacturers in OEM and replacement X-ray tubes to ensure the optimum generation of sharp, detailed images.

Our focus is our customers!

Numerous well-known manufacturers of X-ray equipment worldwide rely on the quality of myonic products. In close cooperation with our customers, we are solving even highly complex applications on a daily basis. By being close to our customers we understand their applications and can apply this experience into ever-improving products.

Diagnostics / Mammography

Top quality is our standard

The stationary use of the tubes in diagnostics limits the mechanical demands and thus often allows a more simple construction of the tubes, which can lead to a high degree of standardization of the bearing design, e.g. with regard to the ball set and the design of the raceway geometries.

Various connection versions can be selected from the myonic standard portfolio. To limit the cost and time required for development, it is helpful to define the bearing design together during the tube concept design phase in order to use an existing bearing if possible.

X-ray checklist

For the design of an X-ray bearing unit tailored to your requirements, please contact myonic application engineering.

Technical data

Envelope Dimensions
Bearing flange and housing are according to customer request. Due to our great knowledge, we can support you in this respect.

Technical Support
■ Customized bearing design with the experience of myonic
■ Rotor Dynamic Analysis – FFT analysis
■ Calculation of critical frequency
■ Bearing analysis

Mid-CT / vascular

Would you like a little more?

The possibility of recording X-ray images on electronic detectors allows a whole sequence of X-ray images to be taken in a very short time. Together with other factors, the longer switch-on time thus increases the demand on the system’s thermal capacity in order to prevent the rotating anode from overheating. Larger and heavier anode disks are used for this purpose, among other things.

In extreme cases, the tube is not only operated in a certain position, but swivelled in use or moved in a circular path around the patient in a CT unit.
In addition to the higher temperatures, the significantly higher mechanical loads must also be taken into account in the bearing design.

Here, myonic can draw on correspondingly larger dimensioned bearing components and solid lubricants optimized for temperatures up to 550°C.
It makes sense to start discussing the tube layout as early as possible in order to be able to use other existing components, such as bearing housings and connection components, if possible.

X-ray checklist

For the design of an X-ray bearing unit tailored to your requirements, please contact myonic application engineering.

Technical data

Envelope Dimensions
Bearing flange and housing are according to customer request. Due to our great knowledge, we can support you in this respect.

Technical Support
■ Customized bearing design with the experience of myonic
■ Rotor Dynamic Analysis – FFT analysis
■ Calculation of critical frequency
■ Bearing analysis

High-end CT

Load-Capacity taken to the Extreme

To generate the required number of images, the X-ray tube unit in a high-end CT scanner rotates around the patient at a frequency of up to 4 times per second.
By this means, the components experience lateral accelerations that can correspond to 50 times the acceleration due to gravity. At the same time, the rotating anode rotates around its own axis at up to 10,000 revolutions per minute.

The rotating anode must rotate completely vibration-free and with as little noise and losses as possible over the longest possible service life! The ball bearing units designed by myonic for this application safely absorb the forces acting on them and are specially conditioned for use in high vacuum at bearing temperatures of up to 550°C.

For optimum integration into the customer’s system, myonic engineers work very closely with the developers of the X-ray tubes to achieve the best customer-specific solution for the application.

X-ray checklist

For the design of an X-ray bearing unit tailored to your requirements, please contact myonic application engineering.

Technical data

Envelope Dimensions
Bearing flange and housing are according to customer request. Due to our great knowledge, we can support you in this respect.

Technical Support
■ Customized bearing design with the experience of myonic
■ Rotor Dynamic Analysis – FFT analysis
■ Calculation of critical frequency
■ Bearing analysis

Accessories

Components

The use of the bearing units in high vacuum at temperatures up to 550°C puts special demands on the bearing design and the materials used.

Raw balls

There are only a very small number of independent ball mills in the world capable of producing the ball quality required for this application.

Ball coating

The application in high vacuum excludes conventional bearing lubrication with grease or oil. This problem is solved by a layer of only about 0.1 micrometres of lead or silver on the balls or raceways.

Bearing housing

Not only are high demands placed on the bearing housing in terms of manufacturing quality, but even the basic material must meet special requirements.