A Design Method of Thin-Walled and Four-Point Contact Ball Bearings of Industrial Robots

摘要

Thin-walled and four-point contact ball bearings are key elements for industrial robots, since they play a critical role in the action accuracy, running stability and flexibility, and service life for the main engine of robots. In this paper, a new design method which involves structure optimization, finite element analysis and accurate service life calculation has been developed. FPXU408-2RZ bearing is applied as an example to describe the design method.