Special bearings are generally non-standard products that need to be customized. Purchasing special bearings is undoubtedly a difficult and complicated task. To customize special bearings, you must contact the bearing manufacturer, not the agent or distributor, and verify that your supplier has technical support and collaboration capabilities, product design capabilities, R&D product capabilities, material expertise, advanced manufacturing processes, customization flexibility, quality control capabilities, and perfect after-sales support. When selecting special bearing materials, it is necessary to comprehensively evaluate a variety of technical factors based on actual applications to ensure bearing performance and service life.