| 摘要 |
The bearing (4) has internal (2) and external (3) rings provided with bearing tracks (3a) on which the bearings run. The external ring has a radial track (5) with different diameter conduits (5a,b) for the introduction of the bearings which are closed by a plug (6). The radial track emerges in the bearing tracks and on the outside of the external ring. The plug comprises first and second cylindrical parts (6a,b) corresponding in diameter to the two conduits. A toroidal joint (8) is positioned between the radial track and the plug in the junction between the plug cylindrical parts. The cylindrical conduits are joined by an intermediate conduit (10) of continuously decreasing section. The cylindrical parts are joined by an intermediate part (11) complementary to the intermediate conduit. There is a peripheral groove (9) inside the intermediate conduit for positioning the joint. |
