A kind of new four-point contact ball slewing bearing for CT scanner

Luoyang,China,14 March 2022：CT scanner bearings, as a high-end bearing used in the equipment industry, the bearings are characterized by high rotational speed, high rotational accuracy, low starting friction torque, low noise and low vibration. As a high-end bearing, there are high requirements for the reliability and stability of the bearing in use. At present, the commonly used CT scanner bearing structures in the market include four-point contact ball, constant section thin wall ball, wire raceway, double-row angular contact ball and other structures.

High-end CT scanner bearings have been monopolized by imported bearing enterprises for many years, and only some low-end CT scanner bearings can be produced domestically. In the domestic production of CT scanner bearings, four-point contact ball structure is dominant. Domestic production of CT scanner bearings, the inner ring and the outer ring are no ball holes, cage for the arc-shaped segmented type, assembly of the cage from the inner and outer ring end face side into the inner and outer ring between the first and last way will be 6 to 8 segments of the arc nylon cage spliced together as a whole, keeping a certain gap between the end segment and the first segment.

With the CT scanner working speed increase, the structure of the bearings used in the cage elongation problem will become very obvious, the overall performance is not good, the seriousness of the cage in the interface will be pulled away from the situation, there may also be the phenomenon of cage from the side of the run out. Bearings with different raceway diameters require different cage molds, with a long processing cycle and high mold costs. Therefore, the structure of the bearings needs to be improved to meet the needs of the domestic high speed CT scanner bearing market.

LZJM Precision Bearing is committed to the research and development of new CT scanner four-point contact ball bearings, which realizes the requirements of high rotational accuracy and low start-up friction torque of CT scanner bearings, and achieves the goals of low noise and low vibration at higher rotational speeds, and has obtained the corresponding utility model patent certificates.

For further information, please contact:

Sundy Liu ; sundyliu@lzjmbearing.com