| 摘要 |
A self-lubrication alignment bearing (10) includes a sleeve (11) having therein a top recess (12) defined in a top portion thereof, a bottom recess (16) defined in a bottom portion thereof to communicate with the top recess (12) via a longitudinally defined channel (13) in which the shaft (20) is rotatably received, a bottom cap (18) received in the bottom recess (16) and a returning passage (19) defined inside the sleeve (11) to communicate the bottom recess (16) with the top recess (12). |
