The rotor vector (RV) gear reducer is a mechanism used for motion and torque transmission. With characteristics similar to a traditional cycloidal gear drive, it has been popularly applied in precision machinery because of its high-speed reduction ratio, large torque capacity, and high efficiency. In this work, we aim to analyze the kinematic error (transmission error) of the RV reducer with manufacturing and/or assembly tolerances. Formulae for the kinematic error are established by using the theory of gearing as well as tooth contact analysis. Subsequently, sensitivities of the kinematic error with respect to various design parameters are investigated. Lastly, a process to simulate the distribution of maximum kinematic errors of the gear reducer with various tolerance grades of the parts is developed via Monte Carlo method. It is shown that through selected tolerance control on the machine parts, the accuracy of the gear drive can be retained. The results of this work can be useful for controlling the manufacturing precision on the machine parts and assessing the overall accuracy of the mechanism in the design phase.

转子矢量（RV）齿轮减速器是一种用于运动和扭矩传递的机构。它具有类似于传统摆线齿轮传动的特性，因其高减速比，大扭矩容量和高效率而广泛应用于精密机械中。在这项工作中，我们旨在分析具有制造和/或装配公差的RV减速器的运动学误差（传递误差）。通过使用齿轮理论以及齿接触分析来建立运动误差的公式。随后，研究了运动误差对各种设计参数的敏感性。最后，通过蒙特卡洛方法开发了一种模拟齿轮减速器最大运动误差分布的零件公差等级不同的过程。结果表明，通过对机器零件进行选定的公差控制，可以保持齿轮传动的精度。这项工作的结果对于控制机械零件的制造精度以及在设计阶段评估机构的整体精度很有用。