| 摘要 |
Ball bearing for a roller skate wheel comprising, an outer ring (1,3), and an inner ring (2,4), between the inner ring (2,4) and the outer ring (1,3) engaging balls (5), wherein an elastic ring (6) is sealingly attached in an inner ring groove (9,10) in the inner ring (2) and co-operating with an outer ring groove (7) axially connecting the outer ring (1,3) to the inner ring (2,4) by the ring (6). |
