A rotating part that includes at least one generator unit having at least one coil, at least one permanent magnet and two pole shoes having pole surfaces facing radially outward is provided, The non-rotating part has an arc-shaped saddle adaptor of ferromagnetic material arranged with a radial distance to the pole surfaces. The saddle adaptor is configured to close a magnetic circuit passing via the pole shoes through the coil in a rotational position where the saddle adaptor overlaps with the pole shoes of the generator unit.

A rotating part that includes at least one generator unit having at least one coil, at least one permanent magnet and two pole shoes having pole surfaces facing radially outward is provided, The non-rotating part has an arc-shaped saddle adaptor of ferromagnetic material arranged with a radial distance to the pole surfaces. The saddle adaptor is configured to close a magnetic circuit passing via the pole shoes through the coil in a rotational position where the saddle adaptor overlaps with the pole shoes of the generator unit.

A support ring assembly for a railway axle having a support ring configured to be inserted between a rolling bearing and a collar of the railway axle, the support ring having an annular seat, a surface of a radially inner side wall fitted with a radial clearance over the collar and an end wall that abuts against the collar, an annular insert fitted into the seat by means of an annular shield and having an elastomeric annular element having at least two annular protuberances that engage with the collar, the annular element configured to engage with the collar so as to occupy the radial clearance.

A support ring assembly for a railway axle having a support ring configured to be inserted between a rolling bearing and a collar of the railway axle, the support ring having an annular seat, a surface of a radially inner side wall fitted with a radial clearance over the collar and an end wall that abuts against the collar, an annular insert fitted into the seat by means of an annular shield and having an elastomeric annular element having at least two annular protuberances that engage with the collar, the annular element configured to engage with the collar so as to occupy the radial clearance.

A railway self-generating express freight car bogie has a wheel-axle assembly, frame, journal box suspension device, bolster, foundation brake, side bearing, empty/load auto-adjustment equipment, central suspension device, longitudinal traction device, vertical damper and lateral damper. An axle-end generator is connected at the outer end of an axle of the wheel-axle assembly, the rotor part of the axle-end generator is connected to the end bearing of the wheel-axle assembly by the axle-end bolts, and the stator part is connected to the mount of the journal box suspension devices. The bogie is designed according to the zero-wear concept, and a large number of rubber components and hydraulic dampers are used to improve the lateral stability, linear stability and curve passing performance of the car, so that the bogie is highly adaptable to railway lines, and can meet the operating requirements within 160 km/h and reduce the workload of bogie operation and maintenance.

A railway self-generating express freight car bogie has a wheel-axle assembly, frame, journal box suspension device, bolster, foundation brake, side bearing, empty/load auto-adjustment equipment, central suspension device, longitudinal traction device, vertical damper and lateral damper. An axle-end generator is connected at the outer end of an axle of the wheel-axle assembly, the rotor part of the axle-end generator is connected to the end bearing of the wheel-axle assembly by the axle-end bolts, and the stator part is connected to the mount of the journal box suspension devices. The bogie is designed according to the zero-wear concept, and a large number of rubber components and hydraulic dampers are used to improve the lateral stability, linear stability and curve passing performance of the car, so that the bogie is highly adaptable to railway lines, and can meet the operating requirements within 160 km/h and reduce the workload of bogie operation and maintenance.

A wheelset bearing for a rail vehicle has a generator which is designed as a claw-pole generator, which includes at least one non-rotating claw ring, as well as a sensor system supplied with electrical energy by the generator The sensor system has a plurality of sensor system modules which are at least partially fastened to a sensor carrier placed on the claw ring and which are connected to a common data line.

A wheelset bearing for a rail vehicle has a generator which is designed as a claw-pole generator, which includes at least one non-rotating claw ring, as well as a sensor system supplied with electrical energy by the generator The sensor system has a plurality of sensor system modules which are at least partially fastened to a sensor carrier placed on the claw ring and which are connected to a common data line.

A bogie for a rail vehicle includes a wheel set with a wheel set bearing. In order to provide a cost-effective testing of a wheel set bearing temperature, the bogie includes a temperature verification or test element and a thermally conducting line which thermally connects the wheel set bearing with the temperature verification or test element. A rail vehicle having at least one bogie and a method for verifying a wheel set bearing temperature of a rail vehicle are also provided.

A bogie for a rail vehicle includes a wheel set with a wheel set bearing. In order to provide a cost-effective testing of a wheel set bearing temperature, the bogie includes a temperature verification or test element and a thermally conducting line which thermally connects the wheel set bearing with the temperature verification or test element. A rail vehicle having at least one bogie and a method for verifying a wheel set bearing temperature of a rail vehicle are also provided.