Proposal and Implementation of A Ball Screw Torque Monitoring System for Analyzing Bearing Status

Koki Katagiri, Soma Maeda, Shuto Kawakita, Takanobu Otsuka

Abstract: To improve productivity in small and medium-sized manufacturing businesses, it is necessary to use digital systems. Therefore, we built a system that can detect the shortage of bearing grease. We designed a sensor device that requires no additional work to install to old-type ball screws and an algorithm that can divide collected data into cycle waveforms. Those components allow for analyzing torque difference among cycles. The experiment showed that the proposed system could detect the torque difference between bearing with grease and without grease.