Two angle-related shafts are joined with one set of universal joints, the two shafts will developed a phase difference, however, if taking advantage of two universal joins and the deviation angle will become the same, enabling synchronism.

• 可以连接两个有角度关系的转轴，但在使用单组万向接头的情况下两轴会有相位差，若使用两组万向接头加之以两组的轴偏差角都相同即可使两转轴的相位同步。