JP2014020401A5 - - Google Patents
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- JP2014020401A5 JP2014020401A5 JP2012157105A JP2012157105A JP2014020401A5 JP 2014020401 A5 JP2014020401 A5 JP 2014020401A5 JP 2012157105 A JP2012157105 A JP 2012157105A JP 2012157105 A JP2012157105 A JP 2012157105A JP 2014020401 A5 JP2014020401 A5 JP 2014020401A5
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- Japan
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- diameter
- small
- diameter side
- ball
- ring raceway
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- 210000002832 Shoulder Anatomy 0.000 claims 4
- 230000002093 peripheral Effects 0.000 claims 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 1
Description
又、請求項２に記載した発明の様に、大径側内輪軌道の曲率半径をＲ３ とした場合に、０．５０５≦Ｒ３／Φ１≦０．５２の関係を満たす様に、各部の寸法Ｒ３、Φ１を規制すると共に、小径側内輪軌道の曲率半径をＲ４とした場合に、０．５１≦Ｒ３／Φ２≦０．５２の関係を満たす様に、各部の寸法を規制すれば、前記各玉の転動面と、前記大径側、小径側両内輪軌道との転がり接触部分の面圧が過大になる事を防止できる事も、後述する本発明者が行ったシミュレーションの結果に基づいて明らかである。 Further, like the invention described in claim 2, the curvature radius of the large diameter side inner raceway when the R 3, so as to satisfy the relation of 0.505 ≦ R 3 / Φ 1 ≦ 0.52, each unit Dimension R 3 , Φ 1 , and when the radius of curvature of the small-diameter inner ring raceway is R 4 , the dimensions of each part so as to satisfy the relationship of 0.51 ≦ R 3 / Φ 2 ≦ 0.52 Can prevent the surface pressure of the rolling contact portion between the rolling surfaces of the balls and the large-diameter side and small-diameter side inner ring raceways from becoming excessive. It is clear based on the results of simulation.
Claims (2)
前記外輪は、内周面の軸方向片側に大径側外輪軌道を、同じく軸方向他側にこの大径側外輪軌道よりも直径が小さい小径側外輪軌道を、それぞれ有し、この大径側外輪軌道の軸方向他側に前記大径側玉列を構成する各玉の外接円の直径寸法よりも小さい内径寸法を有する大径側溝肩部が設けられていて、前記小径側外輪軌道の軸方向他側に、前記小径側玉列を構成する各玉の外接円の直径寸法よりも小さい内径寸法を有する小径側溝肩部が設けられており、
前記内輪は、外周面の軸方向片側に大径側内輪軌道を、同じく軸方向他側にこの大径側内輪軌道よりも直径が小さい小径側内輪軌道を、それぞれ有し、この大径側内輪軌道の軸方向両側部分に、前記大径側玉列を構成する各玉の内接円の直径寸法よりも大きい外径寸法を有する大径側内輪溝肩部が設けられていて、前記小径側軌道輪の軸方向両端部に、前記小径側玉列を構成する各玉の内接円の直径寸法よりも大きい内径寸法を有する小径側内輪溝肩部が設けられており、
前記大径側保持器は、円周方向複数箇所にポケットを有する円環状であり、
前記小径側保持器は、円周方向複数箇所にポケットを有する、直径が前記大径側保持器よりも小さい円環状であり、
前記大径側玉列を構成する複数個の玉は、前記大径側保持器の各ポケット内に保持された状態で、前記大径側外輪軌道と前記大径側内輪軌道との間に転動自在に設けられており、
前記小径側玉列を構成する複数個の玉は、前記小径側保持器の各ポケット内に保持された状態で、前記小径側外輪軌道と前記小径側内輪軌道との間に転動自在に設けられており、
前記大径側玉列を構成する各玉と前記小径側玉列を構成する各玉とに、互いに同じ向きの接触角が付与されているタンデム型複列アンギュラ玉軸受に於いて、
前記大径側外輪軌道の曲率半径をＲ１とし、前記大径側玉列を構成する各玉の直径寸法をΦ１とした場合に、０．５０５≦Ｒ１／Φ１≦０．５３の関係を満たし、
前記小径側外輪軌道の曲率半径をＲ２とし、前記小径側玉列を構成する各玉の直径寸法をΦ２とした場合に、０．５３≦Ｒ２／Φ２≦０．５４の関係を満たす事を特徴とするタンデム型複列アンギュラ玉軸受。 An outer ring, an inner ring, a large-diameter side cage, a small-diameter side cage, a plurality of balls constituting a large-diameter side ball row, and a plurality of balls constituting a small-diameter side ball row,
The outer ring has a large-diameter outer ring raceway on one axial side of the inner peripheral surface and a small-diameter outer ring raceway having a smaller diameter than the large-diameter outer ring raceway on the other axial side. A large-diameter groove shoulder having an inner diameter smaller than the diameter of the circumscribed circle of each of the balls constituting the large-diameter ball array is provided on the other axial side of the outer ring raceway, and the shaft of the small-diameter outer ring raceway is provided. On the other side in the direction, a small-diameter side groove shoulder having an inner diameter smaller than the diameter of the circumscribed circle of each ball constituting the small-diameter side ball row is provided,
The inner ring has a large-diameter inner ring raceway on one axial side of the outer peripheral surface, and a small-diameter inner ring raceway having a smaller diameter than the large-diameter inner ring raceway on the other axial side. Large-diameter side inner ring groove shoulders having outer diameters larger than the diameters of the inscribed circles of the balls constituting the large-diameter side ball row are provided on both axial sides of the track, and the small-diameter side A small-diameter side inner ring groove shoulder portion having an inner diameter dimension larger than a diameter dimension of an inscribed circle of each ball constituting the small-diameter side ball row is provided at both ends in the axial direction of the bearing ring,
The large-diameter side retainer is an annular shape having pockets in a plurality of locations in the circumferential direction,
The small-diameter side retainer has an annular shape having pockets in a plurality of locations in the circumferential direction, and has a smaller diameter than the large-diameter side retainer,
The plurality of balls constituting the large-diameter side ball train are rolled between the large-diameter outer ring raceway and the large-diameter side inner ring raceway while being held in each pocket of the large-diameter side cage. It is provided freely,
A plurality of balls constituting the small-diameter side ball row are provided in a freely rollable manner between the small-diameter side outer ring raceway and the small-diameter side inner ring raceway while being held in each pocket of the small-diameter side cage. And
In the tandem double-row angular contact ball bearing in which each ball constituting the large-diameter side ball row and each ball constituting the small-diameter side ball row are given contact angles in the same direction,
When the radius of curvature of the large-diameter outer ring raceway is R 1 and the diameter of each ball constituting the large-diameter side ball train is Φ 1 , 0.505 ≦ R 1 / Φ 1 ≦ 0.53 Meet relationships,
When the radius of curvature of the small-diameter side outer ring raceway is R 2 and the diameter dimension of each ball constituting the small-diameter side ball train is Φ 2 , the relationship of 0.53 ≦ R 2 / Φ 2 ≦ 0.54 is established. Tandem type double row angular contact ball bearing characterized by satisfying.
前記小径側内輪軌道の曲率半径をＲ４ とした場合に、０．５１≦Ｒ４／Φ２≦０．５２の関係を満たす、
請求項１に記載したタンデム型複列アンギュラ玉軸受。 When the curvature radius of the large-diameter side inner ring raceway is R 3 , the relationship of 0.505 ≦ R 3 / Φ 1 ≦ 0.52 is satisfied,
When the radius of curvature of the small-diameter side inner ring raceway is R 4 , the relationship of 0.51 ≦ R 4 / Φ 2 ≦ 0.52 is satisfied.
The tandem type double row angular contact ball bearing according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012157105A JP6236754B2 (en) | 2012-07-13 | 2012-07-13 | Tandem double-row angular contact ball bearing, differential device, and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012157105A JP6236754B2 (en) | 2012-07-13 | 2012-07-13 | Tandem double-row angular contact ball bearing, differential device, and automobile |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014020401A JP2014020401A (en) | 2014-02-03 |
| JP2014020401A5 true JP2014020401A5 (en) | 2015-07-16 |
| JP6236754B2 JP6236754B2 (en) | 2017-11-29 |
Family
ID=50195560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012157105A Expired - Fee Related JP6236754B2 (en) | 2012-07-13 | 2012-07-13 | Tandem double-row angular contact ball bearing, differential device, and automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6236754B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6427928B2 (en) | 2014-04-15 | 2018-11-28 | 株式会社ジェイテクト | Double row ball bearing and shaft support device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4411831B2 (en) * | 2002-09-30 | 2010-02-10 | 株式会社ジェイテクト | Assembly for double row ball bearing and assembly method of apparatus using the assembly |
| JP4250952B2 (en) * | 2002-11-22 | 2009-04-08 | 株式会社ジェイテクト | Pinion shaft support bearing device |
| JP3887349B2 (en) * | 2003-05-21 | 2007-02-28 | 本田技研工業株式会社 | Wheel support hub unit |
| JP2009079680A (en) * | 2007-09-26 | 2009-04-16 | Ntn Corp | Tandem type double-row angular ball bearing and differential device |
-
2012
- 2012-07-13 JP JP2012157105A patent/JP6236754B2/en not_active Expired - Fee Related
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