An axle box for a railway vehicle including a casing provided with a through-bore extending along a median axis, a journal unit accommodated in the bore, a front cover, and a rear cover. At least one part of the front and rear cylindrical parts of the front and rear covers, respectively, having a threaded exterior surface screwed into a tapped portion of the central bore of the casing.

An axle box for a railway vehicle including a casing provided with a through-bore extending along a median axis, a journal unit accommodated in the bore, a front cover, and a rear cover. At least one part of the front and rear cylindrical parts of the front and rear covers, respectively, having a threaded exterior surface screwed into a tapped portion of the central bore of the casing.

An axlebox for a railway vehicle, having a housing provided with a through bore extending along a central axis, a bearing unit housed in the bore, and a back cover. The back cover and housing are fixed together by special manufactured shapes so as to minimize spare parts.

An axlebox for a railway vehicle, having a housing provided with a through bore extending along a central axis, a bearing unit housed in the bore, and a back cover. The back cover and housing are fixed together by special manufactured shapes so as to minimize spare parts.

The present application discloses various apparatuses including generators for rail cars and controllers for use with such generators. Methods related to such generators are also disclosed. According to one embodiment a generator that is mountable to a rotatable axle of the rail car is disclosed. The generator can include: a shaft rigidly coupled to the rotatable axle for rotation therewith, a set of magnets coupled to the shaft for rotation, and a stator assembly mounted on one or more bearing assemblies. The stator assembly is independent of a stationary portion of the rail car so as to be moveable relative thereto with movement of the axle. The stator assembly can include: a set of coils supported by the stator assembly and positioned proximate to the set of magnets to generate electricity when the set of magnets rotates; and an electrical conductor to provide the generated electricity to the rail car.

The disclosure relates to a generator system for rail vehicles, for example, a system including a generator with a rotor and a stator, and a journal box unit. The journal box unit may include a bearing for mounting an axle, and a bearing housing. An end cap is arranged on the front face of the axle. The end cap is connected to the axle for co-joint rotation therewith, and the stator is connected to the bearing housing. A friction wheel is arranged on the outer circumferential surface of the end cap, the friction wheel being designed as the rotor of the generator.

The disclosure relates to a generator system for rail vehicles, for example, a system including a generator with a rotor and a stator, and a journal box unit. The journal box unit may include a bearing for mounting an axle, and a bearing housing. An end cap is arranged on the front face of the axle. The end cap is connected to the axle for co-joint rotation therewith, and the stator is connected to the bearing housing. A friction wheel is arranged on the outer circumferential surface of the end cap, the friction wheel being designed as the rotor of the generator.

A covering system for wheelset shafts of rail vehicles includes a cover, a wheelset bearing unit, and a centering device. The wheelset bearing unit has an axis of rotation, a bearing housing with an end face facing towards the cover, and a wheelset bearing for the mounting of a wheelset shaft. The wheelset bearing has an end cap surrounded by the cover. The centering device is for aligning the cover in relation to the bearing housing. The centering device includes a groove on the end face.

An axlebox of railway vehicle bogie comprising a housing, a front cover fixed to a front side of the housing, a rear cover fixed to a rear side of the housing, a cylindrical roller bearing unit, an end cap and a backing ring. A rear chamber and a front chamber on both axial sides of the sealed bearing unit are in fluidic connection through a bypass system.

An axlebox of railway vehicle bogie comprising a housing, a front cover fixed to a front side of the housing, a rear cover fixed to a rear side of the housing, a cylindrical roller bearing unit, an end cap and a backing ring. A rear chamber and a front chamber on both axial sides of the sealed bearing unit are in fluidic connection through a bypass system.