To manufacture a product stably in dimension by grasping a processing condition through the monitoring of detected signals from a processing machine located at a remote site, and also through making proper adjustment and setting by means of remote control.

This invention is related to a device processing a work W having a race groove (a) in which balls are rolled so as to be run, and the device is equipped with an information processing means 10 located at a remote site, which is connected by a telecommunication line 12. An individual processing device 1 allows a work to be processed by a processing machine part based on control from a control means 4, and is equipped with a setting means 15 having set basic processing information, and with a processing detection means 8. The difference between the set information of the setting means 15 and the detected information of the processing detection means 8, is operated by operation means 16, and is fed back to the control means 4. The fed back information is used for controlling the control means 4, and is concurrently transferred to the information processing means located at the remote site. A processing condition is grasped by the information processing means 10 at remote site, and the content of setting for the setting means 15 is renewed by information given from the means 10 through the telecommunication line 12.