concentricity error

Preliminary Research on Concentricity and Roundness Error Measurements by Three-coordinates Measuring Machine

三坐标测量机测量圆度同轴度误差初探

On the basis of experience with measurement this paper discusses the concentricity and roundness error measurements by three coordinates measuring machine from the viewpoint of the author.

本文在测量实践的基础上，对三坐标测量机测量圆度和同轴度误差进行探讨，论述了作者的看法和改进意见。

This kind of bearing outer ring raceway is spherical shape, so the self-aligning good performance, to compensate concentricity error.

该类轴承外圈滚道是球面形，故其调心性能良好，能补偿同轴度误差。

Concentricity error is positioning error, The tolerance zone is a reference axis for axis, with tolerance values for diameter cylinder.

同轴度误差属于定位误差，其公差带是以基准轴线为轴线、以公差值为直径的圆柱面区域。