Needle roller bearings can be used in the railway industry for traction motors of railway locomotives. With their small cross-sectional size and high load-bearing capacity, they ensure stable operation of the motor and reduce friction losses. In the wheel axle box, needle roller bearings can withstand complex loads during vehicle operation, adapt to high-speed and heavy-duty operating requirements, and improve the reliability and service life of the axle box. Needle roller bearings are also used in the bogie section to assist in the flexible rotation of the power steering system, enhancing the vehicle's operational stability and handling. In addition, in railway signal equipment, turnout machines and other components, needle roller bearings can achieve precise transmission and positioning, ensuring the safe and efficient operation of the railway system.