Recent Patents on the Detection Device for Surface Defects on Bearing Balls

Background: With the continuous pursuit of high-quality and high-precision bearings in industrial production, the processing accuracy of bearing balls is increasing, and high surface quality has become the most basic requirement for high-quality bearing balls. Studying the working principle of the detection devices for surface defects on bearing balls is beneficial to improve the surface accuracy of bearing balls and the quality of bearings. Objective: The objective of this study was to provide an overview of recent patents and methods on the detection device for surface defects on bearing balls. Methods: This paper reviews various representative patents related to the detection devices for surface defects on bearing balls. The advantages and disadvantages of the patents are also analyzed. Results: By tracing the characteristics of different types of the detection devices for surface defects on bearing balls, the currently existing problems are concluded and analyzed, such as low detection accuracy, low detection efficiency, and limited scope of application, etc. The future development of patents on detection devices for surface defects on bearing balls is discussed. Conclusion: The optimization and development of detection devices for surface defects on bearing balls are beneficial to improve the detection accuracy and efficiency of surface defects on bearing balls, and are conducive to expanding the scope of application of the detection devices. More related patents on detection devices of surface defects on bearing balls will be invented.