| 组别 | 孔公差带 | 轴公差带 | 相同点 | 不同点 |
| ① | varphi 20_0^{+0.021} | varphi 20_{-0.033}^{+0.020} | ||
| ② | varphi 20_0^{+0.021} | [varphi 20±0.0065 | ||
| ③ | varphi 20_0^{+0.021} | [varphi 20_{-0.013}^{0} |
| 组别 | 孔公差带 | 轴公差带 | 相同点 | 不同点 |
| ① | varphi 20_0^{+0.021} | varphi 20_{-0.033}^{+0.020} | 孔均为基准孔varphi 20H7 轴均为IT6级 | 间隙配合，Xav=+0.037 |
| ② | varphi 20_0^{+0.021} | varphi 20±0.0065 | 过渡配合 | |
| ③ | varphi 20_0^{+0.021} | varphi 20_{-0.013}^0 | 间隙配合，Xav=+0.017 |