An innovative design from Wafangdian Metallurgical Bearing significantly improves the durability of multi-row thrust ball bearings
Wafangdian Metallurgical Bearing announced that it has obtained an important patent for technological innovation. According to a report by the Financial Times on March 8, 2025, the patent, entitled "Sealed Long-Life Multi-Row Thrust Ball Bearing" (authorization announcement number CN 222559004 U), was submitted last summer, marking the company's important progress in improving product stability and extending service life.
The core of this patent lies in a unique bearing structure, which achieves excellent performance by installing steel balls and corresponding sealing devices between the top and bottom shaft rings and the seat rings respectively. In particular, the inner and outer spacers are made of L-shaped spring steel material and cleverly embedded in the grooves of the shaft ring and the seat ring to form an effective grease storage area. This structure not only enhances the bearing's resistance to external impact, but also effectively prevents the intrusion of contaminants such as mud, ensuring long-term and stable lubrication. In addition, by precisely controlling the tiny gaps between the various components, the overall axial load is optimally distributed, thereby significantly improving the working life of the bearing and reducing maintenance frequency and cost. This innovation will bring more efficient and reliable product options to related industries.
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