ZK3 Bogie

Summary: This bogie is suitable for various freight cars with standard gauge, 21t axle load and the maximum operating speed of 120km/h. It is integrated welding frame type bogie which is designed by absorbing the advantages of European Y25 bogie and combine domestic situation. It has features of large anti-lozenge rigidity, light unsprung mass, higher critical speed and low wheel-rail dynamic interaction. The bogie is comprised of H-shaped welded frame, journal spring suspension, wheelset, bearing, constant contact side bearing and brake rigging, etc.
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