1. Conduct internal optimization design for bearings based on the worst operating conditions of the vehicle model used;
2. The inner ring, outer ring, and steel ball are all processed with high-purity special high-quality bearing steel;
3. The cage is made of engineering plastics that comply with YB/T6638, and its technical conditions comply with the provisions of JB/T7048; Or negotiate with users to use other materials for manufacturing;
4. Generally, the optimal composite sealing structure is used, and the sealing ring material is high-quality nitrile rubber and SPCC framework. Other types of rubber can also be used according to special needs; 5. Add special lubricating grease customized for special working conditions of wheel hub bearings to meet the maintenance free requirements.