To provide a wheel rolling bearing device for, if a flange part to which a wheel is mounted is elastically deformed, preventing a cylindrical part supporting the wheel from its inner periphery side from being easily influenced thereby while enhancing accuracy of concentricity between the wheel to be mounted to the flange part and a shaft part of a joint.SOLUTION: An inward member 11 of a wheel rolling bearing device 10 having a wheel-mounted flange part 26 is provided with a through-hole 27 passing therethrough in an axial direction. A joint 50 having a cup part 51 contacting the inward member 12 and a shaft part 52 passing through the through-hole 27, and the inward member 12 are integrally rotatable. A fastening member 30 has a female screw part 31 to be threaded to a male screw part 56 provided on one axial side of the shaft part 52. The fastening member 30 has a contact face 32 for contacting the inward member 12 from one axial direction with the female screw part 31 threaded to the male screw part 56, and a cylindrical face 33 having a cylindrical outer peripheral face 34 protruded to one axial side further than the flange part 26 and coaxial with a center line L of the female screw part 31.SELECTED DRAWING: Figure 1

    【課題】車輪が取り付けられるフランジ部が弾性変形しても、車輪をその内周側から支持する円筒部は、その影響を受け難く、フランジ部に取り付けられる車輪と、継手の軸部との同軸度の精度を高める。【解決手段】車輪用転がり軸受装置10の内方部材11は、車輪取り付け用のフランジ部26を有し、軸方向に貫通する貫通孔27が設けられている。内方部材12に接触するカップ部51および貫通孔27を貫通する軸部52を有する継手50と、内方部材12とが、一体回転可能となる。軸部52の軸方向一方側に設けられている雄ねじ部56に螺合する雌ねじ部31を有する締結部材30を備える。締結部材30は、雌ねじ部31を雄ねじ部56と螺合させることで内方部材12に軸方向一方側から接触する接触面32と、フランジ部26よりも軸方向一方側に突出し雌ねじ部31の中心線Lと同軸である円筒外周面34を有する円筒部33とを有する。【選択図】 図1


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    Title :

    WHEEL ROLLING BEARING DEVICE


    Additional title:

    車輪用転がり軸受装置


    Contributors:

    Publication date :

    2023-10-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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