In the profile grinding operation for ball bearing's inner ring groove, the quality of products and the productivity of the machining process mostly depends on the technology system’s parameters such as normal feed rate (Fn), speed of part (Vp), depth of cutting (t), number of parts in a grinding cycle (Np), etc. It is actually necessary to optimize technology parameters of the machining process. The article presents a method to optimize technology parameters of the profile grinding operation for 6208 ball bearing's inner ring groove on the grinder 3MK136B. The research is implemented by the least squares experimental planning method to determine the experimental regression functions between technical parameters and output elements of the machining process. Based on that, an optimal solution of the non-linear optimization problem has been solved by using a Genetic Algorithm, presenting the most appropriate technology parameters for profile grinding of 6208 ball bearing’s inner ring groove on grinder 3MK136B as follows: Fn = 7.69 (µm/s); Vp = 9 (m/min); t = 19.9 (µm) and Np = 19 (parts).
