The present invention relates to a wheel unit for a rail vehicle (101) having a nominal speed above 140 km/h, in particular, a high-speed rail vehicle, wherein the wheel unit comprises a rim section (106.1) and the rim section (106.1) defines a rolling axis (106.2) of the wheel (106), a rim width along the rolling axis (106.2) and a tread datum plane perpendicular to the rolling axis (106.2). The rim section (106.1) has a sectional contour (106.3) in a sectional plane comprising the rolling axis (106.2), wherein the sectional contour (106.3) comprises a wheel profile section (106.4). The wheel profile section (106.4) comprises a flange section and a tread section, wherein the tread section is configured to contact a rail (107) of a track in a contact location during normal operation of the wheel unit. The tread section, in an unworn or re-profiled state, comprises a non-cylindrical contour section. The tread section, in an unworn or re-profiled state, further comprises a cylindrical contour section. The cylindrical contour section, along the rolling axis (106.2), has an inner end (106.5), an outer end (106.6) and a cylindrical contour width between the inner end (106.5) and the outer end (106.6). The cylindrical contour section is located such that, along the rolling axis (106.2), one of the inner end (106.5) and the outer end (106.6) has an end distance from the tread datum plane which is at most 50% of the cylindrical contour width. In particular, the cylindrical contour section may intersect the tread datum plane.


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    Title :

    WHEEL UNITS FOR RAIL VEHICLES


    Additional title:

    RADEINHEITEN FÜR SCHIENENFAHRZEUGE
    UNITÉS DE ROUE POUR VÉHICULES SUR RAILS


    Contributors:

    Publication date :

    2023-01-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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