| 摘要 |
<p>A device for machining a work piece comprising a frame, a main spindle bearing connected with said frame and rotatably accommodating a main spindle, which carries at its work-piece end work-piece chucking means, the main spindle bearing comprising near the work-piece end of the main spindle, a plurality of first revolution body bearings each absorbing radial and axial forces and being groupwise mounted in direct contact with one another and near the other end of the main spindle, a second revolution body bearing having internally a conical face and being axially adjustable to a corresponding conical face of the main spindle and solely absorbing radial forces, preferably the first revolution body bearings are angular-contact ball bearings and the second revolution bearing is a cylinder bearing.</p> |
