X-ray tube, for e.g. medical imaging field, has rolling pieces placed on outer and inner raceways, and patterns provided at surface of raceways and/or at surface of rolling pieces, where patterns are formed by chevrons

摘要

The tube has two bearings respectively offering an outer raceway and an inner raceway (17). Rolling pieces are placed on the raceways and between two crowns. Patterns (21) are provided at the surface of the raceways and/or at the surface of the rolling pieces. The bearings are provided in a chamber filled with a lubricating Gallium, Indium and tin alloy. The patterns are created by forms chevrons (25, 26) in the inner and outer raceways.