| 摘要 |
A linear roller bearing unit comprising a guide rail having four loaded roller runway surfaces. A bearing body which is mounted on the guide rail for linear motion therealong and which has a pair of skirt portions depending from the opposite sides thereof with a longitudinally extending central cavity defined therebetween, the bearing body being formed at the inner peripheral surface of its cavity with a longitudinally extending central groove and at the inner peripheral surface of each skirt portion with a longitudinally extending side groove.
|
