Flanged bearings represent a special category of rolling bearings featuring integrated axial positioning flanges on the outer ring, innovatively combining support functions with locating characteristics. Through precision flange design, these bearings maintain all standard bearing functions while achieving accurate axial positioning. The typical structure includes specially heat-treated inner and outer rings, cage systems, and rolling elements, with the outer ring flange being precisely calculated and optimized to provide reliable axial constraints while承受radial loads. This integrated design significantly simplifies bearing housing processing requirements, offering new solutions for equipment structural compactness.