| 摘要 |
The present invention refers to a roller bearing particularly suitable for use in seismic isolator, comprising a sliding plate having a substantially circular bottom surface intended for resting and rolling on a layer of balls, a boundary element of the layer of balls substantially ring-shaped surrounding the bottom surface and having an internal knife-shaped edge and a frustoconical ring-shaped interspace for the accommodation and recirculation of the balls open towards the bottom surface. |
