| 摘要 |
<p>The pull-out device consists of two rails (12,18), one engaging around the other and connected by roller bearing elements (30) accommodated in apertures (32) in a cage (34). The front and rear aperture wall sections are formed by cage projections (36), which are bent out of the cage at right angles to the longitudinal direction of the rails. At least one of the rails has a longitudinal groove (28) to guide the bearing elements, esp. balls. The projections are directed into the groove. The cage is of steel.</p> |
