A hub unit including an end cap for preloading and retaining a bearing unit on an axle. The end cap is provided with a sensor unit for detecting at least one of vibrations and temperature of the bearing unit.

A hub unit including an end cap for preloading and retaining a bearing unit on an axle. The end cap is provided with a sensor unit for detecting at least one of vibrations and temperature of the bearing unit.

An axle box-bearing unit for an axle including a housing element and a sensor unit having a sensor module, a connection piece for connecting to a processing unit and a flexible electrical cable joining the sensor module and the connection piece into a single part. The housing element is delimited by an annular lateral wall provided with a transversal through hole engaged by a plug fitted in a fluid-tight manner to the flexible electrical cable between the sensor module and the connection piece. A first plate provided with a second through hole is rigidly connected to the lateral wall of the housing element, with the second hole aligned with the first hole and crossed through by the plug, a second U-shaped plate is fitted astride of the plug to connect with one end of same that projects radially from the holes and is rigidly connected to the first plate.

An axle box-bearing unit for an axle including a housing element and a sensor unit having a sensor module, a connection piece for connecting to a processing unit and a flexible electrical cable joining the sensor module and the connection piece into a single part. The housing element is delimited by an annular lateral wall provided with a transversal through hole engaged by a plug fitted in a fluid-tight manner to the flexible electrical cable between the sensor module and the connection piece. A first plate provided with a second through hole is rigidly connected to the lateral wall of the housing element, with the second hole aligned with the first hole and crossed through by the plug, a second U-shaped plate is fitted astride of the plug to connect with one end of same that projects radially from the holes and is rigidly connected to the first plate.

The invention relates to a ground terminal and to a method for discharging electric currents from a rotor part of a vehicle (such as a rail vehicle or the like, that has an axle) to a stationary stator part of the vehicle. The ground terminal includes a retaining device and a terminal element. The retaining device is connected to the stationary stator part of the vehicle in electrically-conductive manner, the terminal element is disposed on and connected to the retaining in electrically-conductive manner. The terminal element is made mostly of graphite and subjected to a contact force by means of a spring device of the retaining device to realize an electrically-conductive sliding contact between a sliding contact surface of the terminal element provided for realizing the sliding contact and a terminal surface of the rotor part. The terminal element has an arc-shaped cross-section at least in portions thereof, an outer surface of the cross-section forming the sliding contact surface at least in sections. The sliding contact surface abuts radially against the terminal surface of the rotor part.

The invention relates to a ground terminal and to a method for discharging electric currents from a rotor part of a vehicle (such as a rail vehicle or the like, that has an axle) to a stationary stator part of the vehicle. The ground terminal includes a retaining device and a terminal element. The retaining device is connected to the stationary stator part of the vehicle in electrically-conductive manner, the terminal element is disposed on and connected to the retaining in electrically-conductive manner. The terminal element is made mostly of graphite and subjected to a contact force by means of a spring device of the retaining device to realize an electrically-conductive sliding contact between a sliding contact surface of the terminal element provided for realizing the sliding contact and a terminal surface of the rotor part. The terminal element has an arc-shaped cross-section at least in portions thereof, an outer surface of the cross-section forming the sliding contact surface at least in sections. The sliding contact surface abuts radially against the terminal surface of the rotor part.

A wheelset bearing for the wheelset of a rail vehicle having an internally mounted truck that includes one bearing housing per side of the wheelset that encloses the wheelset bearing for the wheelset, where the wheelset bearing and bearing housing are within the wheels in an installed state and a torsion spring serves as a roll stabilizer that is connected to the bearing housing such that the torsion springs are rigidly connected to one bearing housing each on the two ends thereof (without interconnection of draw-pressure rods) so as to implement roll stabilization for the wheelsets in a manner that is as technically simple as possible.

A wheelset bearing for the wheelset of a rail vehicle having an internally mounted truck that includes one bearing housing per side of the wheelset that encloses the wheelset bearing for the wheelset, where the wheelset bearing and bearing housing are within the wheels in an installed state and a torsion spring serves as a roll stabilizer that is connected to the bearing housing such that the torsion springs are rigidly connected to one bearing housing each on the two ends thereof (without interconnection of draw-pressure rods) so as to implement roll stabilization for the wheelsets in a manner that is as technically simple as possible.

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 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.