| 摘要 |
<p>The invention relates to a bearing cage for a driving roller. The circular surface of said cage that comes into contact with the tube is provided with a series of deformable blades (8) which are concentric to the axis of the tube (1). At least one of said blades has a diameter greater than the internal diameter, at maximum tolerance, of the tube (I), thereby enabling said bearing cage to be tightly inserted in the tube. At least one of the blades is provided with a diameter smaller than the internal diameter, at minimum tolerance, of the tube (1), thereby enabling said cage to be pre-positioned in the tube before the tight insertion of the other blade.</p> |
