The thrust needle roller bearing adopts a modular design, including a cage, needle rollers, shaft rings, and seat ring components. The NTB series adopts a single holder with a cylindrical needle roller structure, while the AXK series achieves compact installation height through a thin holder. In 2024, a patented technology proposed a symmetrical double cage structure, in which the first and second cages interlock and fix the needle rollers through a bent part, reducing the risk of assembly scratches by 66% compared to traditional single cage designs . The cage pocket holes are designed with equal angular distribution, and a drum shaped groove is set in the middle section to embed lubricating grease, forming a self-lubricating system . The WS/GS series adopts a split design between the seat ring and the shaft ring, allowing the bearing to produce ± 0.5 ° deflection compensation under axial load, adapting to shaft alignment deviation
