| 摘要 |
<p>The roller (4) has an external surface (5) rotating around a symmetrical axis (A) such that the roller is rotated in a bearing around the symmetrical axis by resting against the external surface. Two cavities (8) are formed on a roller side surface (6). The cavities extend along the symmetrical axis, and comprise an opening (9) that is formed on the side surface and separated from the cavities by a material bridge (10). The cavities are delimited by a roller side surface (11) having a truncated geometry diverging from the opening toward the bridge. An independent claim is also included for an antifriction bearing comprising an external body.</p> |
