| abstract |
"TRIBOLOGICAL DEVICE". The present invention provides a tribological device, especially a miniature roller bearing with rolling bodies which are resistant to hot vapor up to 450 <198> temperature in the components and which roll on rolling paths, the rolling bodies being constructed on the basis of zircon dioxide. In accordance with the present invention, this task is solved by the fact that at least the surface of the rolling bodies consists of MgO and / or CeO ~ 2 ~ and / or SC ~ 2 ~ O ~ 3 ~ stabilized zircon dioxide, wherein zircon dioxide has at least partially a tetragonal structure. In another embodiment of the present invention, stabilization is carried out with Y 2 O 3 O 3, with the primary grain size being less than 300 nm, preferably less than 100 nm. |