To realize a structure capable of reducing the difference in thickness between a circumferential place where a bottom part of a pocket is located and a circumferential place where a column part is located, regarding an inclined crown holder.SOLUTION: An inclined crown holder 5 is wholly integrally made of synthetic resin, and comprises: an annular rim part 10; and a column part 11 that protrudes from a plurality of places with equal intervals in a circumferential direction of the rim part 10 to one side in an axial direction, and is inclined radially outward as a central axial line L goes toward the one side in the axial direction. Then, a portion surrounded on three sides by the rim part 10 and the pair of column parts 11 that are adjacent to each other in the circumferential direction serves as a pocket 12 for rollingly holding a ball. The inclined crown holder 5 has an arc groove-shaped recess 13 that radially penetrates the rim part 10 at a circumferential position where the column part 11 is located.SELECTED DRAWING: Figure 4
【課題】傾斜型冠形保持器に関して、ポケットの底部が位置する円周方向箇所と柱部が位置する円周方向箇所との肉厚差を小さくすることができる構造を実現する。【解決手段】傾斜型冠形保持器5は、合成樹脂により全体を一体に構成されており、円環状のリム部10と、リム部10の円周方向等間隔となる複数箇所から軸方向片側に突出するとともに、中心軸線Lが軸方向片側に向かうほど径方向外側に向かう方向に傾斜した柱部11とを備える。そして、リム部10と円周方向に隣り合う1対の柱部11とにより三方を囲まれた部分を、玉を転動自在に保持するためのポケット12としている。傾斜型冠形保持器5は、柱部11が位置する円周方向箇所に、リム部10を径方向に貫通する円弧溝形状の凹部13を有している。【選択図】図4
INCLINED CROWN HOLDER AND ANGULAR BALL BEARING
傾斜型冠形保持器及びアンギュラ玉軸受
2020-08-31
Patent
Electronic Resource
Japanese
RETAINER FOR ANGULAR BALL BEARING AND ANGULAR BALL BEARING
European Patent Office | 2023
|