Solved with the spindlesleeve and bearing components with the layout of the form of the key technical problems.
解决了套筒与主轴的配合及支承部件的布置形式等关键技术问题。
2
Three quenched bushes are pressed on the hollow spindle (sleeve) with a big interference fit, thus the spindle can move forward and backward precisely within the bush.
三个大干涉配合的淬火衬套压装在空心轴（镗套）上，因此，主轴能在衬套内前后精确移动；
3
The technical equipment adopted the construction that the spindle drove boring sleeve, boring bar and cutter bar in order to finish machining spherical surface. The improved result was good.