The methodological foundations of the use of automated measuring systems in the monitoring system of the technological process of manufacturing parts of bearings are considered. In addition to the means used to control the accuracy of manufacturing of bearing rings, the use of vibration measuring instruments to assess the dynamic quality of each grinding machine, automated eddy-current quality control devices for the surface layer of parts, and an active dimensional control system, the functions of which are expanded by controlling the speed of the removed stock, are considered. All information is processed in a monitoring system and used to improve the quality of bearing parts.