To provide a bearing cap for a wheel bearing device with a rotational speed detection device, in which a foreign matter intruded into sensor support portions can be efficiently discharged to the outside of the sensor support portions, and the rigidity of the sensor support portion is secured, and to provide the wheel bearing device with the rotational speed detection device.SOLUTION: In a bearing cap 11 in which sensor support portions 21 are formed at a bottom surface portion 15c of a cap body 15 and insertion holes 21a of rotational speed sensors 19 are formed at the sensor support portions 21, recessed portions 15d in which distal end portions of the rotational speed sensors 19 are housed are formed at a portion in which the sensor support portions 21 are formed at the bottom surface portion 15c, and the sensor support portions 21 are oppositely arranged with a virtual line L passing through an axial core G1 of the bottom surface portion 15c and an axial core G2 of the insertion hole 21a interposed therebetween, and composed of first wall portions 21b and second wall portions 21c which are formed along peripheral edge portions of the recessed portions 15d, and protrusions 21d protruding from the bottom surface portion 15c are each continuously formed at outer circumferential surfaces of the first wall portions 21b and the second wall portions 21c.SELECTED DRAWING: Figure 2

    【課題】センサ支持部の内部に侵入した異物を、当該センサ支持部の外部に効率よく排出することができ、且つセンサ支持部の剛性を確保した回転速度検出装置付き車輪用軸受装置用の軸受キャップ及び回転速度検出装置付き車輪用軸受装置を提供する。【解決手段】キャップ本体15の底面部15cにセンサ支持部21が形成され、センサ支持部21に回転速度センサ19の挿入孔21aが形成された軸受キャップ11において、底面部15cのセンサ支持部21が形成された部分には、回転速度センサ19の先端部が収容される凹部15dが形成され、センサ支持部21は、底面部15cの軸心G1と挿入孔21aの軸心G2とを通る仮想線Lを間に挟んで対向配置され、且つ凹部15dの周縁部に沿って形成される第1壁部21b及び第2壁部21cからなり、第1壁部21b及び第2壁部21cの外周面には、底面部15cから突出する凸部21dが各々連続して設けられる。【選択図】図2


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    Title :

    BEARING CAP FOR WHEEL BEARING DEVICE WITH ROTATIONAL SPEED DETECTION DEVICE, AND WHEEL BEARING DEVICE WITH ROTATIONAL SPEED DETECTION DEVICE


    Additional title:

    回転速度検出装置付き車輪用軸受装置用の軸受キャップ、及び回転速度検出装置付き車輪用軸受装置


    Contributors:

    Publication date :

    2021-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16C SHAFTS , Wellen / B60B VEHICLE WHEELS , Räder für Fahrzeuge