| 摘要 |
The bearing assembly comprises a stepped-diameter shaft (1) having a large-diameter portion (1a) formed with an inner raceway groove (2a). Balls (4) are located between the inner groove (2a) and an outer raceway groove (2b) in an outer race ring (3). A conventional ball bearing unit (5) is mounted on a small-diameter portion (1b) of the shaft, with a spacer sleeve (7) located between the outer race ring (5b) of the unit (5) and the outer race ring (3). Reduced-diameter portions (7a, 7b) at opposite ends of the sleeve (7) position the sleeve accurately relative to the outer race rings. The components are pre-assembled into the bearing assembly by a bearing manufacturer, to enable a user to be free from the task of assembling rotatable portions, or a cylindrical rotary shaft and associated bearing means, of a computer and/or its peripheral device. In use, the bearing assembly is coaxially mounted in the cylindrical rotary shaft or the like by the user, to rotatably support the cylindrical rotary shaft or the like in the computer or its peripheral device. <IMAGE> |
