Frame: As the basic structure of the bogie, it is usually made of steel or aluminum alloy and bears the pressure from the weight of the vehicle.
Wheelset: Includes two wheels and an axle, mounted on a bogie, in contact with the rails and providing traction.
Suspension system: used to connect the wheels and frame, as well as to absorb the impact caused by uneven tracks. Common suspension types include: torsion bar suspension, spring suspension, etc.
Brake system: used to control the speed of the train, including brake pads/discs, brake pads and other components.
Traction device: Used to transmit traction from the locomotive to the wheels, including traction motors, gearboxes and other components.
Guide device: Ensure that the wheels drive in the specified direction to avoid derailment accidents. Common guidance methods include: guide rail, friction guide, etc.
