Underneath type railway freight car bogie wheelset radial device

An underneath type railway freight car bogie wheelset radial device adapted to integrated brakes and lever brakes, comprising:

• a front subframe and a rear subframe and two cross-arranged connecting rods, each connecting rod has a first end and a second end pinned by round pin connectors to the front subframe and the rear subframe, respectively, wherein:
• each subframe comprises an adapter and a lateral arm;
• each connecting rod is arranged under a bolster to form an underneath bogie wheelset radial structure;
• the two connecting rods are disposed on a plane that is lower than a surface of the subframe adapter;
• wherein the subframe adapter further comprises:
• an adapter surface;
• an adapter connecting arm integrated with the adapter surface and vertically arranged at one end of the adapter surface;
• wherein the adapter connecting arm is provided with a plurality of adapter connecting holes and an adapter locking hole located at a center of the adapter surface;
• wherein a vertically structured lateral arm flange is provided at an end of the lateral arm;
• the lateral arm flange is provided with a plurality of lateral arm connecting holes corresponding to the adapter connecting holes;
• and
• a lateral arm bolt located at the center;
• each subframe is formed by fixing the connecting holes of the adapter and the connecting holes of the lateral arm with the rivet assembly, and
• locking the lateral arm bolt passing through the locking hole of the adapter with a lock pin.