To provide an axial clearance measuring method of a wheel bearing device which can accurately measure an axial negative clearance.SOLUTION: An axial clearance measuring method of a wheel bearing device comprises: pressure-insertion step S02 of an inner 4; first axial negative clearance measuring step S03 for measuring a first axial negative clearance G1; caulking step S04 for caulking a hub ring 3; inner ring push-in amount measuring step S05 for measuring an inner ring push-in amount L; first inner ring outside diameter expansion amount measuring step S06 for measuring a first inner ring outside diameter expansion amount DE1; second inner ring outside diameter expansion amount calculation step S07 for calculating a second inner ring outside diameter expansion amount DE2; outside diameter expansion amount difference calculation step S08 for calculating an outside diameter expansion amount difference ΔDE; first axial clearance reduction amount calculation step S09 for calculating a first axial clearance reduction amount ΔGa; second axial clearance reduction amount calculation step S10 for calculating a second axial clearance reduction amount ΔGb; third axial clearance reduction amount calculation step S11 for calculating a third axial clearance reduction amount ΔGc; and second axial negative clearance calculation step S12 for calculating a second axial negative clearance G2.SELECTED DRAWING: Figure 2

    【課題】軸方向負隙間を高精度に測定できる車輪用軸受装置の軸方向隙間測定方法を提供する。【解決手段】内輪4の圧入工程S02と、第1の軸方向負隙間G1を測定する第1の軸方向負隙間測定工程S03と、ハブ輪3を加締める加締工程S04と、内輪押込量Lを測定する内輪押込量測定工程S05と、第1の内輪外径拡径量DE1を測定する第1の内輪外径拡径量測定工程S06と、第2の内輪外径拡径量DE2を算出する第2の内輪外径拡径量算出工程S07と、外径拡径量差分ΔDEを算出する外径拡径量差分算出工程S08と、第1の軸方向隙間減少量ΔGaを算出する第1の軸方向隙間減少量算出工程S09と、第2の軸方向隙間減少量ΔGbを算出する第2の軸方向隙間減少量算出工程S10と、第3の軸方向隙間減少量ΔGcを算出する第3の軸方向隙間減少量算出工程S11と、第2の軸方向負隙間G2を算出する第2の軸方向負隙間算出工程S12とを備える。【選択図】図2


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    Titel :

    WHEEL BEARING DEVICE AND AXIAL CLEARANCE MEASURING METHOD


    Weitere Titelangaben:

    車輪用軸受装置の軸方向隙間測定方法


    Beteiligte:
    UCHIYAMA NOBUKATSU (Autor:in) / GOTO SATOSHI (Autor:in)

    Erscheinungsdatum :

    2021-09-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F16C SHAFTS , Wellen / B60B VEHICLE WHEELS , Räder für Fahrzeuge / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen



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