ISO 286-2:20 10给出了根据ISO 286中给出的表格计算的孔和轴常用公差等级的极限偏差值？1.ISO 286-2涵盖了上限偏差eU，hole（用于孔）和eU，shaft（用于轴）以及下限偏差eL，hole（用于孔）和eL，shaft（用于轴）的值。 ISO线性尺寸公差系统提供了适用于以下类型特征的公差和偏差系统: 气缸； 两个平行的相对表面。 为了简单起见，也因为圆形截面的圆柱形工件的重要性，仅明确提及这些工件。然而，应该清楚地理解，ISO 286-2中给出的公差和偏差同样适用于圆形截面以外的工件。

ISO 286-2:2010 gives values of the limit deviations for commonly used tolerance classes for holes and shafts calculated from the tables given in ISO 286？1. ISO 286-2 covers values for the upper limit deviations e_{U, hole} (for holes) and e_{U, shaft} (for shafts) and the lower limit deviations e_{L, hole} (for holes) and e_{L, shaft} (for shafts). The ISO system for tolerances on linear size provides a system of tolerances and deviations suitable for features of the following types:

1. cylinders;
2. two parallel opposite surfaces.

For simplicity, and also because of the importance of cylindrical workpieces of circular section, only these are referred to explicitly. It should be clearly understood, however, that the tolerances and deviations given in ISO 286-2 equally apply to workpieces of other than circular sections.