抄録
To reduce machining time and to increase machining accuracy, high speed cutting has attracted special interest recently. A key aspect of this machining process is the development of high speed main spindles of machine tools. In this study, the basic performance of a spindle supported with ball bearings is investigated. Oil-air lubrication which seems to be most effective to increase the rotational speed is applied. From the experiment, some useful information for developing very high speed spindle systems is obtained.
