This paper analyzes the offcenter error of installing reference ball as testing lathe main spindle rotation errors in Ningxia Institute of Technology and puts forward the way of eliminating errors.
本文对宁夏工学院测试车床主轴回转误差运动时基准球安装偏心引起的误差进行了分析，并提出了剔除该误差的方法。
To introduce a method of machining technics for inner ball face by horizontal lathe with according to the theory of any two points on ball face to the center of the ball are equal.
根据球面上任意点到球心的距离相等的数学定义，运用实现基本动作，结构最简化的设计思路，设计一种内球台球面在卧式车床加工的装置。
The thrust ball bearings are used in lathe centers , automobile clutches, reducers and so on .
他们主要适用于车床顶心、汽车离合器、减速机等。
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