Abstract : the uncertainty assessment of the measurement of bearing outside diameter standard . the uncertainty assessment is very important in all kinds of measurement . this paper introduces this method and its application in the measurement of the standard of bearing outside diameter 文摘:不确定度评定在各行各业测量工作中十分重要,文章从应用的角度出发,着重论述不确定度的评定方法与计算过程及其在轴承外径标准器测量中的具体应用。