BEARING UNIT FOR AN AXLEBOX OF A RAILWAY VEHICLE, AXLEBOX, RAILWAY VEHICLE AND MAINTENANCE PROCESS.

摘要

The invention concerns a bearing unit for an axlebox of a railway vehicle. The bearing unit being centered on a central axis and having a bearing configured to support an axle of a wheelset. The bearing unit also includes an annular sleeve provided with an outer periphery configured for mounting in an annular bore of a housing of the axlebox and an inner periphery configured for receiving the bearing; and a plurality of anti-rotation means distributed at the outer periphery of the annular sleeve, for preventing rotation of the annular sleeve in the housing of the axlebox. The invention also concerns a railway vehicle having such an axlebox and a maintenance process for such an axlebox.