Rapid freight car radial bogie

The invention discloses a rapid freight car radial bogie. The rapid freight car radial bogie comprises an axle assembly, a frame, a swing bolster, a braking device, central suspension devices, a radial device, a side bearing device arranged on the swing bolster and an axle box suspension device, wherein the frame is installed on the axle assembly through the axle box suspension device, the two ends of the swing bolster are fixedly installed in the middle of the frame respectively through the central suspension devices, the frame is composed of two side beams and parallel cross beams connected with the side beams, and bearing platforms where the central suspension devices are installed are arranged outside the middle portions of the side beams. The rapid freight car radial bogie structure obviously reduces wheel-rail wear and wheel-rail noise, reduces wheel-rail acting force, reduces vehicle transverse vibration acceleration and improves vehicle operation lateral stability, straight line stability and curve line negotiating capacity. The unsprung mass of the bogie is reduced, the speed of the bogie is high, vehicle braking performance is improved, wheel-rail wear and wheel-rail noise are small, vehicle operation stability is good, and stability and safety are high.