JPH0671208U - Double row oblique contact bearing for wheel support - Google Patents
Double row oblique contact bearing for wheel supportInfo
- Publication number
- JPH0671208U JPH0671208U JP1374393U JP1374393U JPH0671208U JP H0671208 U JPH0671208 U JP H0671208U JP 1374393 U JP1374393 U JP 1374393U JP 1374393 U JP1374393 U JP 1374393U JP H0671208 U JPH0671208 U JP H0671208U
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- knuckle
- recess
- oblique contact
- contact bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
(57)【要約】
【目的】組み込みを容易としながらも、組み込み後には
軸方向に変位しにくい構造とすること。
【構成】複列外向きアンギュラ玉軸受において、外輪1
の外周面の軸方向中間部分の円周数箇所に帯状の凹部8
が円周等間隔に設けられている。これにより、当該軸受
をホイールハブ5とナックル6との間に組み込むとき、
凹部がナックル6に引っ掛かりにくくなるとともに、組
み込み後にアキシャル荷重が作用したときにはナックル
6の一部が凹部8に強く食い込むようになる。
(57) [Summary] [Purpose] To make the structure easy to assemble but difficult to move in the axial direction after the assembly. [Structure] Outer ring 1 in double row outward angular contact ball bearing
A band-shaped recess 8 is formed at several circumferential positions in the axially intermediate portion of the outer peripheral surface of the
Are provided at equal intervals around the circumference. Thereby, when the bearing is assembled between the wheel hub 5 and the knuckle 6,
The recess is less likely to be caught in the knuckle 6, and when an axial load is applied after the assembling, a part of the knuckle 6 bites strongly into the recess 8.
Description
【0001】[0001]
本考案は、自動車などの車軸ハウジングに所定のしめしろをもって圧入嵌合さ れる構成のホイール支持用の複列斜接軸受に関する。 The present invention relates to a double-row oblique contact bearing for supporting a wheel, which is press-fitted into an axle housing of an automobile or the like with a predetermined interference.
【0002】[0002]
従来のこの種の複列斜接軸受としては、例えば図5に示すような複列外向きア ンギュラ玉軸受と呼ばれるものがあり、二列のボール軌道を有する単一の外輪5 0と、各一列のボール軌道を有する二つの内輪51,51と、複数のボール52 ・・・と、二列のボール52群それぞれを列別に保持する二つの保持器(図示省 略)と、外輪50の両端の各肩部と内輪51,51の各一端との間に設けられる シール53,53とを備えている。なお、外輪50の両端内周と二つの内輪51 ,51の各一端(内端)外周とには、それぞれカウンタボアが設けられており、 両内輪51,51を介して互いに向き合う側へ予圧を加えることにより各軌道輪 に対してボール52が接触角をもって接触する斜接(アンギュラコンタクト)構 造になっている。 As a conventional double-row oblique contact bearing of this type, for example, there is a so-called double-row outward angular ball bearing as shown in FIG. 5, which includes a single outer ring 50 having two rows of ball raceways and Two inner rings 51, 51 having one row of ball tracks, a plurality of balls 52, ..., Two cages (not shown) for holding each group of two rows of balls 52, and both ends of the outer ring 50. And seals 53, 53 provided between the respective shoulders and one end of the inner rings 51, 51. A counterbore is provided at the inner circumference of both ends of the outer ring 50 and the outer circumference of each one end (inner end) of the two inner rings 51, 51, and a preload is applied to the side facing each other through the inner rings 51, 51. By adding them, the ball 52 has an oblique contact structure in which the balls 52 come into contact with each race ring at a contact angle.
【0003】 図例の複列斜接軸受は、ホイールハブ54とナックル55との間に介装されて おり、外輪50とナックル55とは負のしめしろを持つようなタイトなはめ合い に設定されているとともに、止め輪56で抜け止めされている。The double row oblique contact bearing shown in the figure is interposed between the wheel hub 54 and the knuckle 55, and the outer ring 50 and the knuckle 55 are set to have a tight fit so as to have a negative interference. At the same time, it is retained by a retaining ring 56.
【0004】[0004]
ところで、ホイール支持用の軸受では、自動車の旋回時など過大なアキシャル 荷重を受けると、軸受外輪50がナックル55に対してタイトなはめ合いに設定 していようとも、止め輪56の取り付け溝に対する遊び分について軸受全体が軸 方向にスライドさせられることがあり、甚だしい場合には止め輪56に対する衝 突音を発する。 By the way, with bearings for wheel support, when the bearing outer ring 50 is set to have a tight fit with the knuckle 55 when the vehicle receives an excessive axial load, such as when the vehicle is turning, there is play in the mounting groove of the retaining ring 56. The entire bearing may be slid in the axial direction for a minute, and in extreme cases, the impact sound to the snap ring 56 is emitted.
【0005】 これに対して、図示しないが、軸受外輪50の外周面の両端部分に周方向に連 続する周溝を一本ずつ設け、組み込み時に、外輪50よりも軟質な金属からなる ナックル55の一部を外輪50の周溝内に食い込ませるようにしたものを考えら れている。しかしながら、この場合、周溝が軸方向(軸受組み込み方向)に対し て直交している関係より、ナックル55に軸受を組み込む際、軸受外輪50の周 溝がナックル55の内周面の全周に引っ掛かるため、必要以上に大きな力で押圧 する必要があり、ナックル55の内周面が損傷する。On the other hand, although not shown, a circumferential groove that is continuous in the circumferential direction is provided at each end of the outer circumferential surface of the bearing outer ring 50, and when assembled, the knuckle 55 is made of a softer metal than the outer ring 50. It is conceivable that a part of the groove is made to bite into the circumferential groove of the outer ring 50. However, in this case, since the circumferential groove is orthogonal to the axial direction (bearing assembling direction), when the bearing is assembled in the knuckle 55, the circumferential groove of the bearing outer ring 50 covers the entire circumference of the inner circumferential surface of the knuckle 55. Since it is caught, it is necessary to press with an excessively large force, and the inner peripheral surface of the knuckle 55 is damaged.
【0006】 本考案は、このような事情に鑑み、組み込みを容易としながらも、組み込み後 には軸方向に変位しにくい構造とすることを課題としている。In view of such circumstances, it is an object of the present invention to provide a structure that facilitates the assembling but does not easily displace in the axial direction after the assembling.
【0007】[0007]
本考案では、車軸ハウジングに所定のしめしろをもって圧入嵌合される構成の ホイール支持用の複列斜接軸受において、軸方向両端にカウンタボアを有し軸方 向中間に二列の転動体群の軌道溝を有する軌道輪のはめ合い面の軸方向中間に周 方向に不連続な凹部が少なくとも一つ設けられている構成とした。 According to the present invention, in a double-row oblique contact bearing for supporting a wheel, which is press-fitted into an axle housing with a predetermined interference, there are counter bores at both axial ends and two rows of rolling element groups in the middle of the axial direction. At least one circumferentially discontinuous recess is provided in the axial center of the mating surface of the race having the raceway groove.
【0008】[0008]
軌道輪に設けてある凹部は周方向に不連続であり円周の少なくとも一箇所であ るから、軸受組み込み時に凹部がその嵌合相手に対して引っ掛かるとしても、比 較的容易に組み込めるようになる。 Since the recess provided in the bearing ring is discontinuous in the circumferential direction and is at least at one location on the circumference, even if the recess is caught by the mating partner when the bearing is installed, it can be assembled relatively easily. Become.
【0009】 組み込んだ状態において、アキシャル荷重が作用すると、荷重が外輪の軸方向 中心点に集中することになるために、この荷重集中点に設けられる凹部に嵌合相 手の一部が強く食い込むことになるので、軸方向にスライドしにくくなる。When an axial load is applied in the assembled state, the load is concentrated on the axial center point of the outer ring, so that a part of the mating hand strongly digs into the recess provided at this load concentration point. Therefore, it becomes difficult to slide in the axial direction.
【0010】[0010]
図1および図2に本考案の一実施例を示している。図例の複列斜接軸受は、従 来例のものと基本的に同じ複列外向きアンギュラ玉軸受であり、二列のボール軌 道を有する単一の外輪1と、各一列のボール軌道を有する二つの内輪2,2と、 複数のボール3と、二列のボール3群それぞれを列別に保持する二つの保持器( 図示省略)と、外輪1の両端の各肩部と内輪2,2の各一端との間に設けられる シール4,4とを備えている。なお、図において、5はホイールハブ、6はナッ クル、7は止め輪である。 1 and 2 show one embodiment of the present invention. The double-row oblique contact bearing shown in the figure is basically the same double-row outward angular ball bearing as that of the conventional example. It has a single outer ring 1 having two rows of ball tracks and one row of ball raceways. Two inner rings 2 and 2, a plurality of balls 3, two cages (not shown) for holding two groups of balls 3 in each row, and shoulders at both ends of the outer ring 1 and the inner ring 2, 2 and the seals 4 and 4 provided between the two ends. In the figure, 5 is a wheel hub, 6 is a knuckle, and 7 is a retaining ring.
【0011】 本実施例の特徴構成は、外輪1においてアキシャル荷重が集中する軸方向中間 の円周数箇所(八箇所)に凹部8が等間隔に設けられていることである。この凹 部8それぞれは、帯状であり、その開口の四辺の稜線が軸方向に沿う線Oに対し てそれぞれ傾斜させられている。この凹部8は転造加工により形成することがで き、深さが0.2mm程度、傾斜角度θ1〜θ4が0度<θ<90度に設定される 。この凹部8の長手方向に沿う中心線と軸方向に沿う線Oとの傾斜角は30〜6 0度に設定するのが好ましい。The feature of the present embodiment is that the outer ring 1 is provided with recesses 8 at equal intervals at several circumferential positions (eight positions) in the axial direction where the axial load is concentrated. Each of the recesses 8 has a strip shape, and the ridge lines of the four sides of the opening are inclined with respect to the line O along the axial direction. The recess 8 can be formed by rolling, and the depth is set to about 0.2 mm and the inclination angles θ 1 to θ 4 are set to 0 degrees <θ <90 degrees. It is preferable that the inclination angle between the center line along the longitudinal direction of the recess 8 and the line O along the axial direction is set to 30 to 60 degrees.
【0012】 このように凹部8を円周数箇所にスポット的に設けるとともに、凹部8の開口 の四辺の稜線を軸方向に沿う線Oに対して傾斜させていると、ナックル6へ軸受 外輪1を組み込む際、凹部8にナックル6の一部が入り込むけれども、圧入の進 行に伴って入り込んだ部分が凹部8の組み込み方向後端側の稜線から後方へ比較 的スムーズに逃がされるので、従来の周溝のようにナックル6の一部が凹部8に 引っ掛からなくなり、軸受組み込みが容易に行えるようになる。As described above, when the recesses 8 are provided in spots at several places on the circumference and the ridge lines of the four sides of the opening of the recesses 8 are inclined with respect to the line O along the axial direction, the knuckle 6 has the bearing outer ring 1 Although part of the knuckle 6 fits into the recess 8 when assembling, the part that fits in as the press-fitting progresses smoothly from the ridge line on the rear end side of the recess 8 toward the rear side. A part of the knuckle 6 does not get caught in the recess 8 like the circumferential groove, so that the bearing can be easily assembled.
【0013】 しかし、一旦、組み込んでしまうと、外輪1においてアキシャル荷重作用時の 荷重集中点に凹部8を設けてあるから、アキシャル荷重が作用したとき、ナック ル6の一部が凹部8に強く食い込むことになる。それにより、ナックル6に対す る軸受の固定力が高まることになって、軸受全体が軸方向にスライドしにくくな る。However, once assembled, the outer ring 1 is provided with the recess 8 at the load concentration point when an axial load is applied. Therefore, when an axial load is applied, a part of the knuckle 6 is strongly pressed into the recess 8. You will cut into it. As a result, the fixing force of the bearing with respect to the knuckle 6 is increased, which makes it difficult for the entire bearing to slide in the axial direction.
【0014】 なお、本考案は上記実施例のみに限定されない。すなわち、凹部8の形状は図 3や図4に示すようなものなど、他にも種々考えられる。さらに、例えば複列円 錐ころ軸受など、種々なタイプの複列斜接軸受に本考案を適用できる。The present invention is not limited to the above embodiment. That is, various other shapes such as those shown in FIGS. 3 and 4 can be considered for the shape of the recess 8. Further, the present invention can be applied to various types of double-row oblique contact bearings such as double-row tapered roller bearings.
【0015】[0015]
以上説明したように、本考案では、軸受を利用箇所へ組み込むときに嵌合相手 の一部が引っ掛かりにくくて、しかも組み込んだ状態でアキシャル荷重が作用し たときに嵌合相手の一部が強く食い込むように工夫しているから、あまり大きな 力を必要とせずとも組み込みが容易に行えて、組み込み後のアキシャル荷重の作 用時に軸方向に簡単にスライドしないようにできる。 As described above, according to the present invention, a part of the mating partner is less likely to be caught when the bearing is installed in the usage place, and a part of the mating partner is stronger when the axial load is applied in the assembled state. Since it is devised to bite into it, it can be easily assembled without requiring too much force, and it can be prevented from sliding easily in the axial direction when the axial load is applied after installation.
【図1】本考案のホイール支持用の複列斜接軸受の一実
施例の上半分の縦断面図。FIG. 1 is a vertical cross-sectional view of the upper half of an embodiment of a double row oblique contact bearing for supporting a wheel according to the present invention.
【図2】同軸受の外輪の斜視図。FIG. 2 is a perspective view of an outer ring of the bearing.
【図3】凹部の他の例を示す斜視図。FIG. 3 is a perspective view showing another example of a recess.
【図4】凹部のさらに他の例を示す斜視図。FIG. 4 is a perspective view showing still another example of a recess.
【図5】従来のホイール支持用の複列斜接軸受の一実施
例の上半分の縦断面図。FIG. 5 is a vertical cross-sectional view of the upper half of an example of a conventional double-row oblique contact bearing for supporting a wheel.
1 外輪 2 内輪 3 ボール 5 ホイールハブ 6 ナックル 8 凹部 1 outer ring 2 inner ring 3 ball 5 wheel hub 6 knuckle 8 recess
Claims (1)
て圧入嵌合される構成のホイール支持用の複列斜接軸受
であって、 軸方向両端にカウンタボアを有し軸方向中間に二列の転
動体群の軌道溝を有する軌道輪のはめ合い面の軸方向中
間に周方向に不連続な凹部が少なくとも一つ設けられて
いる、ことを特徴とするホイール支持用の複列斜接軸
受。1. A double-row oblique contact bearing for supporting a wheel, which is press-fitted into an axle housing with a predetermined interference, and has counterbore at both axial ends and two rows of axially intermediate rolling bearings. A double-row oblique contact bearing for wheel support, wherein at least one circumferentially discontinuous recessed portion is provided at an axial center of a fitting surface of a bearing ring having a raceway groove of a moving body group.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1374393U JPH0671208U (en) | 1993-03-24 | 1993-03-24 | Double row oblique contact bearing for wheel support |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1374393U JPH0671208U (en) | 1993-03-24 | 1993-03-24 | Double row oblique contact bearing for wheel support |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0671208U true JPH0671208U (en) | 1994-10-04 |
Family
ID=11841746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1374393U Pending JPH0671208U (en) | 1993-03-24 | 1993-03-24 | Double row oblique contact bearing for wheel support |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0671208U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008082474A (en) * | 2006-09-28 | 2008-04-10 | Aisan Ind Co Ltd | Bearing fixing structure and bearing fixing method |
-
1993
- 1993-03-24 JP JP1374393U patent/JPH0671208U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008082474A (en) * | 2006-09-28 | 2008-04-10 | Aisan Ind Co Ltd | Bearing fixing structure and bearing fixing method |
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