The flexible race ball bearing is an essential component in precision applications because of its ability to withstand misalignment and provide precise rotational movement. This is primarily used for radial load applications. This analysis examines the effects of radial deformation and radial stress in different materials, including structural steel, stainless steel, titanium alloy, and Si3N4. The performance of these materials will be assessed using a two-dimensional numerical model, which will be applied under identical boundary conditions. The results indicate that the Titanium alloy exhibits a minimum stress of 125.9 MPa, while Si3N4 demonstrates a maximum radial stress of 146.73 MPa and maximum radial deformation observed is 0.009962 mm for the titanium alloy, while the minimum radial deformation of 0.003669 mm for Si3N4 bearing. These results indicate that the properties of materials play a crucial role in various applications. Specifically, titanium alloy is most appropriate for low load conditions that necessitate lightweight and flexibility, as it allows for maximum deformation with minimal stress. Conversely, for high load conditions, Si3N4 demonstrates superior performance in terms of wear resistance. The impact of these materials on optimizing the efficiency and reliability in the design of flexible race ball bearings is significant.