Abstract: A traction rod assembly for a bogie system includes a body extending between first and second ends. A bush assembly is coupled with the first end and includes a first component having a passage, and a second component disposed within the passage of the first component. The bush assembly includes an eccentric offset such that a center of the first component is offset from a center of the second component. A bearing assembly is coupled with the second end of the body and includes cylindrical bearings and spacers that are concentric with a passage disposed at the second end of the body. The bush assembly is coupled with a frame of the bogie system and the bearing assembly is operably with an axle assembly of the bogie system. The bearing assembly allows rotation of the body relative to the axle assembly of the bogie system.

Abstract: A suspension for a rail vehicle includes a bogie pedestal 10, an axle box 11 and suspension springs 16, 18 and 19 arranged such that the axle box supports load exerted on the pedestal via the springs. The suspension includes a pair of wedge elements 20 urged, by means of springs 18 and 19, into engagement with faces 30 of the pedestal and faces 21 of the axle box. This engagement causes damping of axle box movements. Wedge elements 20 are urged resiliently in opposing directions A and B into frictional slidable contact at the faces 21 by means of additional preset springs 40 mounted at the pedestal 11. This further urging is independent of the load carried by the springs and provides improved suspension characteristics.

Abstract: A suspension for a rail vehicle includes a bogie pedestal 10, an axle box 11 and suspension springs 16, 18 and 19 arranged such that the axle box supports load exerted on the pedestal via the springs. The suspension includes a pair of wedge elements 20 urged, by means of springs 18 and 19, into engagement with faces 30 of the pedestal and faces 21 of the axle box. This engagement causes damping of axle box movements. Wedge elements 20 are urged resiliently in opposing directions A and B into frictional slidable contact at the faces 21 by means of additional preset springs 40 mounted at the pedestal 11. This further urging is independent of the load carried by the springs and provides improved suspension characteristics.