According to the calculation results, numerical values of the error of the shape along the profile of the inner surface of the ring are obtained. The largest error values were obtained with cartridge grinding of the inner surface of the ring. Smaller error values correspond to the grinding scheme on hard supports. In this paper, we propose a method for forming a volume finite element model of a bearing ring. Application of the model made it possible to assess the effect of the grinding pattern of the inner cylindrical surface on the error in the shape of the ring.