To provide a hub unit bearing capable of setting a meshing position of a female spline of a hub and a male spline of a drive shaft member to an axially inner end of a spline engage part of the female spline and the male spline in both acceleration and deceleration of a vehicle.SOLUTION: A hub unit bearing comprises: an outer wheel 4; a hub 5 including a female spline 12 on an inner peripheral surface; and rolling bodies 6a and 6b. The hub 5 includes, at a plurality of positions in a circumferential direction of a radially inner end, intermediate holes 21 linearly extending from an axial outer side face of the hub 5 to positions radially overlapped with an axially inner end of the female spline 12 in a radial direction. The intermediate hole 21 includes a taper female screw part 22 of which the axial inside becomes a smaller diameter side, on an inner peripheral surface of the axially inner end. A screw member 7 inserted into each of the intermediate holes 21 is provided. The screw member 7 includes a taper male screw part 25 which is screwed to the taper female screw hole 22, on an outer peripheral surface.SELECTED DRAWING: Figure 1

    【課題】車両の加速時および減速時のいずれにおいても、ハブの雌スプラインと駆動軸部材の雄スプラインとの噛み合い位置を、雌スプラインと雄スプラインとのスプライン係合部の軸方向内側の端部とすることができるハブユニット軸受を提供する。【解決手段】外輪4と、内周面に雌スプライン12を有するハブ5と、転動体6a、6bとを備える。ハブ5は、径方向内側の端部の円周方向複数箇所に、ハブ5の軸方向外側面から雌スプライン12の軸方向内側の端部と径方向に重畳する位置まで直線状に伸長した中間孔21を有する。中間孔21は、軸方向内側の端部の内周面に、軸方向内側が小径側となるテーパ雌ねじ部22を有する。中間孔21のそれぞれに挿入されたねじ部材7を備える。ねじ部材7は、外周面に、テーパ雌ねじ部22に螺合されるテーパ雄ねじ部25を有する。【選択図】図1


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    Title :

    HUB UNIT BEARING AND WHEEL DRIVE UNIT


    Additional title:

    ハブユニット軸受および車輪駆動ユニット


    Contributors:

    Publication date :

    2022-10-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16C SHAFTS , Wellen / B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



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