PROBLEM TO BE SOLVED: To provide a double row needle roller bearing with a holder capable of smoothly supplying oil from a radial oil hole 57 provided in a pinion shaft 31, and further reducing friction resistance of a double row holder 52.SOLUTION: A double row needle roller bearing with a holder has a needle roller 51 arranged in a double row manner in an axial direction between a pinion shaft 31 and a planetary gear 29, and a holder 52 configured to hold the double row needle roller 51, wherein on the pinion shaft 31, provided are an axial oil hole 56 along an axial line, and a radial oil hole 57 extending in a radial direction from the axial oil hole 56. The holder 52 in each row is coupled by an annular intermediate coupling part 53d; between the annular intermediate coupling part 53d and the pinion shaft 31, an annular space part 54 is provided; and the radial oil hole 57 is opened at a position of the annular space part 54.SELECTED DRAWING: Figure 2

    【課題】ピニオンシャフト31に設けた径方向油穴57からの給油が円滑に行われ、しかも複列の保持器52の摩擦抵抗を減らすことができる保持器付き複列針状ころ軸受を提供する。【解決手段】ピニオンシャフト31と遊星歯車29との間に軸方向に複列に配置される針状ころ51と、この複列の針状ころ51を保持する保持器52とを有し、ピニオンシャフト31に、軸線に沿って軸方向油穴56と、この軸方向油穴56から径方向に延びる径方向油穴57を設けた保持器付き複列針状ころ軸受において、各列の保持器52を環状の中間連結部53dによって連結し、この環状の中間連結部53dとピニオンシャフト31との間に環状の空間部54を設け、この環状の空間部54の位置に前記径方向油穴57を開口させた。【選択図】図2


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    Title :

    PLANETARY GEAR UNIT AND DRIVING DEVICE FOR VEHICLE USING THE SAME


    Additional title:

    遊星歯車装置及びそれを用いた車両用駆動装置


    Contributors:

    Publication date :

    2018-03-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16C SHAFTS , Wellen



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