To provide a structure of a retainer for an angular ball bearing that can reduce friction caused between solidified grease and the bearing.SOLUTION: A retainer 5 for an angular ball bearing includes: an annular small-diameter rim part 11; a plurality of pillar parts 12; and a plurality of pockets 13 for holding balls 4. The pillar parts 12 include: a first branch part 15 and a second branch part 16 extending while branching into a fork shape in a circumferential direction; and a grease reservoir groove 17 formed in an interval part between the first branch part 15 and the second branch part 16, in each of the tips. Tips of the first branch part 15 and the second branch part 16 extending in a direction of coming close to each other in the circumferential direction are connected in the circumferential direction.SELECTED DRAWING: Figure 2

    【課題】固化したグリースとの間に生じる摩擦を低減できる、アンギュラ玉軸受用保持器の構造を実現する。【解決手段】アンギュラ玉軸受用保持器5を、円環状の小径リム部11と、複数本の柱部12と、玉4を保持するための複数のポケット13とを備えるものとする。そして、柱部12を、それぞれの先端部に、円周方向に二股状に分岐して延設した第1分岐部15及び第2分岐部16と、第1分岐部15と第2分岐部16との間部分に形成されたグリース溜め溝17とを有するものとし、円周方向に互いに近づく方向に延設した第1分岐部15の先端部と第2分岐部16の先端部とを、円周方向に連結させる。【選択図】図2


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    Title :

    RETAINER FOR ANGULAR BALL BEARING AND ANGULAR BALL BEARING


    Additional title:

    アンギュラ玉軸受用保持器及びアンギュラ玉軸受


    Contributors:

    Publication date :

    2023-07-20


    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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