| 摘要 |
The invention relates to a device for detecting the rotational speed of a bearing (1), especially a roller bearing, comprising two bearing rings (2, 3) that can be moved in relation to each other. Said device comprises: an emission unit (13) for electromagnetic radiation, a receiving unit (14) for detecting the radiation emitted from the emission unit (13), and a marking (6, 10) off which the radiation emitted from the emission unit (13) is reflected towards the receiving unit (14). The aim of the invention is to provide a simple device for detecting the rotational speed of a bearing ring of a bearing, which provides direct information on the rotational speed of the bearing ring, and is to be subsequently built into bearings in the mounting position. To this end, the marking (6, 10) is located on an outer surface (5, 9) of one of the two bearing rings (2, 3). The invention also relates to a bearing (1), especially a roller bearing or a plain bearing, comprising two bearing rings (2, 3) that can be moved in relation to each other. |
