| 摘要 |
The truck includes two damper ramp supports (10,12) connected together by a transverse tie assembly (14). Movable radius arms (16,18) are pivoted from the damper ramp supports and support a single wheeled axle (20). Springs (22,24) act between the radius arms and an overhead railcar body (26). A swivel assembly (28) provides horizontal load bearing support about a rotational truck axis adjacent the axle. Two yaw control assemblies (34,36) act between the damper ramp supports and the railcar body. The truck is swivelable and self steering, with the radius arms being sprung from overhead and not the side frames.
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