| 摘要 |
The present invention relates to a bearing for both linear and curvilinear motions which has a track rail, a bearing body provided with an endless track and a multiplicity of balls which recirculate through the endless track provided in the bearing body, wherein the endless track is defined by a loaded ball rolling surface which is provided with a linear loaded domain and a curvilinear loaded domain having a predetermined curvature, so that, in a linear area of the track surface of the track rail, a load is born by balls rolling on the linear loaded domain, whereas, in a curvilinear area of the track surface of the track rail, a load is born by balls rolling on the curvilinear loaded domain. Thus, it is possible to perform both linear and curvilinear guide operations with a single bearing. |
