在机床中。主轴占有极重要的地位,因为它对加工的制品质量有著很大的影响,当机床工作时,回转运动经主轴传到切削刀具或制品。主轴在机床上运转的精度,有时在颇大程度内就直接决定著机床的精度。绝大部分机床之主轴,是仅在轴承中作回转运动,如车床,铣床等之主轴。有些机床的主轴 In the machine. Spindle occupies a very important position, because it has a great impact on the quality of the processed products, when the machine work, rotary motion through the spindle to the cutting tools or products. The accuracy of the spindle running on a machine tool sometimes directly determines the accuracy of the machine tool to a large extent. The vast majority of the spindle, is only in the bearings for rotary motion, such as lathes, milling machines, such as the spindle. Some machine tool spindle