| 摘要 |
A ball-circulated ball bearing assembly for infinite linear motion includes a track or guide rail extending straight and provided with a pair of guide grooves and a table sub-assembly which is provided with a pair of endless circulating paths, along each of which a plurality of balls are moved in circulation, thereby allowing the table sub-assembly to move along the guide rail however long it may be. In the preferred embodiment, the table sub-assembly includes a table, a three-part block member defining part of the endless circulating path, a retainer for retaining the block member to the table and a plurality of balls located in the endless circulating path. The retainer is preferably comprised of a shaped plate having a generally U-shaped cross section and having a pair of inwardly curved top edges which come into engagement with the table when assembled to keep the entire table sub-assembly resiliently integrated.
|
