A bogie includes: a plate spring extending in a car longitudinal direction in a state where a first end portion of the plate spring is supported by the first axle box, and a second end portion of the plate spring is supported by the second axle box, the plate spring supporting the pressing member from below so as to be displaceable relative to the pressing member; a first upper link connected to the cross beam and the first axle box and including a first end portion elastically coupled to the first axle box; a first lower link connected to the cross beam and the first axle box and including a first end portion elastically coupled to the first axle box; a second upper link connected to the cross beam and the second axle box and including a first end portion elastically coupled to the second axle box; and a second lower link connected to the cross beam and the second axle box and including a first end portion elastically coupled to the second axle box, a coupling point where the first end portion of the first upper link and the first axle box are coupled to each other and a coupling point where the first end portion of the first lower link and the first axle box are coupled to each other being arranged on a first virtual straight line passing through a center of the first axle in a side view, a coupling point where the first end portion of the second upper link and the second axle box are coupled to each other and a coupling point where the first end portion of the second lower link and the second axle box are coupled to each other being arranged on a second virtual straight line passing through a center of the second axle in the side view.

A bogie includes: a plate spring extending in a car longitudinal direction in a state where a first end portion of the plate spring is supported by the first axle box, and a second end portion of the plate spring is supported by the second axle box, the plate spring supporting the pressing member from below so as to be displaceable relative to the pressing member; a first upper link connected to the cross beam and the first axle box and including a first end portion elastically coupled to the first axle box; a first lower link connected to the cross beam and the first axle box and including a first end portion elastically coupled to the first axle box; a second upper link connected to the cross beam and the second axle box and including a first end portion elastically coupled to the second axle box; and a second lower link connected to the cross beam and the second axle box and including a first end portion elastically coupled to the second axle box, a coupling point where the first end portion of the first upper link and the first axle box are coupled to each other and a coupling point where the first end portion of the first lower link and the first axle box are coupled to each other being arranged on a first virtual straight line passing through a center of the first axle in a side view, a coupling point where the first end portion of the second upper link and the second axle box are coupled to each other and a coupling point where the first end portion of the second lower link and the second axle box are coupled to each other being arranged on a second virtual straight line passing through a center of the second axle in the side view.

A wheelset guide for a rail vehicle, which has a bogie frame. Includes at least one longitudinal support, and includes a wheelset bearing for a wheelset of the rail vehicle, wherein the wheelset bearing is connected to the bogie frame and includes a rocker that is pivotably attached to the bogie frame via an elastic rocker bearing, and a pin guided by the rocker bearing, where the bogie frame forms a receptacle for the rocker bearing, which is configured such that the force is introduced into the bogie frame via the rocker hearing itself, and the rocker bearing is positioned in the receptacle in order to improve the strength and stability of the attachment of the rocker to the bogie frame or to the longitudinal support with an open profile.

A railway vehicle and an axle box structure thereof are provided. The axle box structure includes an axle box body and a positioning joint mounting seat, and a bearing mounting cavity is provided inside the axle box body. The positioning joint mounting seat is provided with a mounting cavity configured to mount a positioning joint, a longitudinal center line of the axle box body is in parallel with a longitudinal center plane of the positioning joint mounting seat, and the longitudinal center plane of the positioning joint mounting seat is outwardly deviated with respect to a longitudinal center plane of the axle box body. In this way, a large space can be left for mounting the brake clamp, and the mounting and replacing of the brake clamp and the wheel set can be facilitated.

A running gear unit for a rail vehicle, having a running gear frame body. The frame body includes two longitudinal beams and a transverse beam unit providing a structural connection between the longitudinal beams, such that a substantially H-shaped configuration is formed. Each longitudinal beam has a suspension interface section associated to a free end section of the longitudinal beam and forming a primary suspension interface for a primary suspension device. Each longitudinal beam has a pivot interface section associated to the primary suspension interface section and forming a pivot interface for a pivot arm. The primary suspension interface is configured to take a total resultant support force acting in the area of the free end section when the frame body is supported on the associated wheel unit.

The present disclosure generally relates to a rail vehicle that includes a chassis and a rail clamp assembly coupled to the chassis. The rail clamp assembly includes a fixed central member and a pair of lugs each extending outwardly from opposing sides of the fixed central member. The rail clamp assembly further includes a pair of arms respectively coupled to the lugs to thereby provide respective pivot points to permit rotation of the arms about the pivot points. A pair of gripping tool assemblies are disposed at respective lower portions of the arms and are coupled to one another via a guide rod.

A bogie is capable of being moved from a rest configuration to an active configuration in which the bogie carries at least one vertical load. The bogie includes a chassis, at least one pair of wheels, and a shaft extending along an axle axis for each pair of wheels. Each wheel has a wheel hub extending along a hub axis and an axle box attached to the chassis and receiving the associated hub. Each hub is rotatable relative to the associated axle box. For each hub, the hub axis forms a non-zero camber angle with the axle axis of the associated shaft when the bogie is in the rest configuration.

A bearing housing including a casing; a rotary bearing with an exterior race mounted inside a bore of the casing, an interior race adapted to be mounted on a shaft and rolling members between the races; and a cap fastened to a front-end face of the shaft, the cap forming an abutment for the interior race on the front face. The bearing housing also comprises a sealing ring mounted in the cap and intended to be clamped axially between the end face of the shaft and the cap.

An elastic bushing includes a recess at a portion of an outer peripheral surface of the elastic bushing which portion is located at an inner side in a car longitudinal direction, the recess being recessed outward in the car longitudinal direction. A tubular portion of an axle beam includes a convex stopper portion protruding outward in the car longitudinal direction from a part of an inner peripheral surface of the tubular portion which part is located at the inner side in the car longitudinal direction, the stopper portion being inserted into the recess with a gap between the stopper portion and a bottom surface of the recess. A thickness of the elastic bushing at the recess in a radial direction is equal to or less than half a thickness of a portion of the elastic bushing in the radial direction which portion is located adjacent to the recess.

An underneath type railway freight car bogie wheelset radial device has front and rear subframes and two cross-arranged connecting rods that are pinned by round pin connectors. The subframe is a combination structure of the adapter and the lateral arm. The connecting rods are arranged under the bolster to form the underneath bogie wheelset radial structure. The height of the central plane of the connecting rod is lower than the height of the central plane of the subframe adapter surface. The adapter has an adapter surface forming an arc-shaped adapter structure and an adapter connecting arm integrated with the adapter surface structure and vertically arranged at one end of the adapter surface; the subframes are fixed to the adapter by the rivet assembly.