| 摘要 |
A shaft arrangement for fast-rotating shafts, such as are used as rotor shafts for turbomolecular pumps in particular, comprises two separate shaft journals (10) that are connected together. A roller bearing (12) is disposed at each of the two shaft journals (10). By separating the shaft into at least two parts, or two shaft journals, it is possible to provide running surfaces (22) for rolling elements (18) of the roller bearings (12) directly on a surface (20) of the shaft journals. |
