To provide a rolling bearing and an axle bearing for a railway vehicle capable of improving temperature rise due to entrainment of grease and extending a maintenance period, because only base oil is continuously supplied to a bearing.SOLUTION: A rolling bearing comprises an inner ring, an outer ring, a rolling element included between the inner and outer rings, a retainer arranged between the inner and outer rings and holding the rolling element, and a sealing device sealing an opening between the inner and outer rings. The sealing device has a seal case, on which a grease tank as a space filled with grease is formed, and is provided with an oil supply port for supplying base oil of the grease filled in the grease tank on at least one part, and a capacity in the grease tank is 5-50% of a total space capacity of the bearing.SELECTED DRAWING: Figure 1

    【課題】軸受には基油のみが継続的に供給されるため、グリースの巻き込みよる温度上昇の改善とメンテナンス周期延伸が両立した転がり軸受および鉄道車両用車軸軸受を提供する。【解決手段】内輪と、外輪と、内外輪間に介在する転動体と、内外輪間に配設されて前記転動体を保持する保持器と、内外輪間の開口部を密封する密封装置とを備えた転がり軸受である。密封装置は、グリースが封入される空間であるグリースタンクが形成されるシールケースを有し、グリースタンクに封入されたグリースの基油が軸受へ供給される給油口が少なくとも1か所設けられ、グリースタンク内の容積を、軸受の全空間容積の5~50%とした。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    ROLLING BEARING AND AXLE BEARING FOR RAILWAY VEHICLE


    Additional title:

    転がり軸受及び鉄道車両用車軸軸受


    Contributors:

    Publication date :

    2024-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16C SHAFTS , Wellen / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / F16N LUBRICATING , Schmierung



    RAILWAY VEHICLE AXLE BEARING

    SUZUKI KENGO | European Patent Office | 2019

    Free access

    BEARING FOR RAILWAY VEHICLE AXLE

    SHIROTA SHINICHI / TAKEUCHI KENTO | European Patent Office | 2016

    Free access

    Bearing device for axle of railway vehicle

    SHIMIZU YASUHIKO / SHIMIZU YASUHIRO / MURAKAMI FUMIHIRO et al. | European Patent Office | 2016

    Free access

    Roller bearing railway axle-box

    Engineering Index Backfile | 1937


    Bearing assembly for a railway axle

    MORETTI ROBERTO / SEMA SILVANO | European Patent Office | 2015

    Free access