ObjectiveThe transmission error is a critical performance indicator in the design of cycloidal pin wheel reducers. The influence of design parameters for crank bearings and output shaft pins on this error is frequently neglected in existing research. To address the issue. a method for calculating transmission error based on the kinematic and mechanical analysis was introduced. https://www.roneverhart.com/Tokidoki-X-Hello-Kitty-and-Friends-1-Blind-Box/