JPH0542748U - Thrust roller bearing - Google Patents
Thrust roller bearingInfo
- Publication number
- JPH0542748U JPH0542748U JP9072491U JP9072491U JPH0542748U JP H0542748 U JPH0542748 U JP H0542748U JP 9072491 U JP9072491 U JP 9072491U JP 9072491 U JP9072491 U JP 9072491U JP H0542748 U JPH0542748 U JP H0542748U
- Authority
- JP
- Japan
- Prior art keywords
- cage
- end surface
- large end
- tapered roller
- maximum value
- 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.)
- Granted
Links
Abstract
(57)【要約】
【目的】 ころの大端面加工の簡略化を図る。
【構成】 円すいころ１の大端面１ａの中心部に、ぬす
み部１ｃを設けるとともに、円すいころ１の長手方向に
沿った、大端面１ａ側のポケットすきまＡの最大値Ａｍ
ａｘが、小端面１ｂ側のポケットすきまＢの最大値Ｂｍ
ａｘよりも大きくなるようにしてある。図１は、保持器
２が矢印方向に最大距離移動した場合を例示しており、
２つの円すいころ１は保持器２の直径線上に対向して位
置する。一方の側の円すいころ１（同図右上）の小端面
１ｂと保持器２とが接触しているが、大端面１ａと保持
器２とは双方の側とも接触していない。保持器２が矢印
と反対方向に移動すると、最大値Ａｍａｘが最大値Ｂｍ
ａｘよりも大きいから、今度は、他方の側の円すいころ
１（同図左下）の小端面１ｂと保持器２とが接触する。
この場合も、大端面１ａは双方の側とも接触しない。し
たがって、大端面１ｃと保持器２とは、保持器２の移動
方向に関係なく、常に、非接触になる。
(57) [Summary] [Purpose] To simplify the machining of the large end face of rollers. [Structure] A tapered portion 1c is provided at the center of the large end surface 1a of the tapered roller 1, and the maximum value Am of the pocket clearance A on the large end surface 1a side along the longitudinal direction of the tapered roller 1 is Am.
ax is the maximum value Bm of the pocket clearance B on the small end face 1b side
It is designed to be larger than ax. FIG. 1 illustrates a case where the cage 2 has moved a maximum distance in the arrow direction,
The two tapered rollers 1 are located opposite each other on the diameter line of the cage 2. The small end surface 1b of the tapered roller 1 (upper right in the figure) on one side is in contact with the cage 2, but the large end surface 1a and the cage 2 are not in contact with either side. When the cage 2 moves in the direction opposite to the arrow, the maximum value Amax becomes the maximum value Bm.
Since it is larger than ax, this time, the small end surface 1b of the tapered roller 1 (lower left in the figure) on the other side comes into contact with the cage 2.
Also in this case, the large end surface 1a does not contact both sides. Therefore, the large end surface 1c and the cage 2 are always in non-contact with each other regardless of the moving direction of the cage 2.
Description
【０００１】[0001]
本考案は、スラストころ軸受の改良に関する。 The present invention relates to improvements in thrust roller bearings.
【０００２】[0002]
例えば、スラスト円すいころ軸受は、図３に示すように、円周等間隔に形成さ れた保持器２のポケット２ａに円すいころ１を収容し、これを一対の軌道輪３、 ４間に組入れたもので、大別して、両軌道輪３、４で円すいころ１の大端面１ａ を案内するタイプと、一方の軌道輪３で案内するタイプのものとがある。 For example, in a thrust tapered roller bearing, as shown in FIG. 3, a tapered roller 1 is housed in pockets 2a of a cage 2 formed at equal intervals around the circumference, and this is installed between a pair of bearing rings 3 and 4. They are roughly classified into a type in which the large end surface 1a of the tapered roller 1 is guided by both bearing rings 3 and 4, and a type in which one of the bearing rings 3 is guided.
【０００３】 図４に示すように、保持器２と円すいころ１との間にはポケットすきま５が設 けられており、円すいころ１は、大端面１ａを軌道輪３（４）の鍔３ａ（４ａ） に接触案内されながら転動する。As shown in FIG. 4, a pocket clearance 5 is provided between the cage 2 and the tapered roller 1. The tapered roller 1 has a large end face 1a on the collar 3a of the bearing ring 3 (4). Rolls while being guided by (4a).
【０００４】[0004]
従来のスラスト円すいころ軸受では、非回転時の保持器２のポケットすきま５ が、円すいころ１の大端面１ａ側と小端面１ｂ側とで略同一になるようにしてい る。そのため、回転時に保持器２がラジアル方向（矢印方向）に移動すると、大 端面１ａおよび小端面１ｂの双方が保持器２と接触することになる。したがって 、大端面１ａおよび小端面１ｂは、軸受寿命を維持する必要等から、全面を高精 度に仕上げる必要があった。 In the conventional thrust tapered roller bearing, the pocket clearance 5 of the cage 2 when not rotating is substantially the same on the large end surface 1a side and the small end surface 1b side of the tapered roller 1. Therefore, when the cage 2 moves in the radial direction (arrow direction) during rotation, both the large end surface 1a and the small end surface 1b come into contact with the cage 2. Therefore, the large end surface 1a and the small end surface 1b need to be finished with high precision on the entire surface in order to maintain the bearing life.
【０００５】 ところで、円すいころ１の端面加工（研削）は、一般に、円すいころ１を自転 させながら行なうが、特に、大端面１ａ側では周縁部と中心部との周速差が大き くなるため、中心部の精度が不十分になり易い。そのため、従来は、大端面１ａ を一通り加工した後、さらに、その中心部を再加工して全面を仕上げるようにす るか、あるいは、図２に示すように、大端面１ａの中心部にぬすみ部１ｃを設け 、加工領域を縮小させるといった手段を用いて、これに対応していた。しかしな がら、前者は工数が余計にかかる分、コスト増につながる。また、後者は、大端 面１ａと保持器２とが接触することに起因して、ぬすみ部１ｃの淵縁部Ｐにかじ り現象が発生し、軸受の寿命低下につながることがある。By the way, the end surface processing (grinding) of the tapered roller 1 is generally performed while the tapered roller 1 is rotating, but especially on the large end surface 1a side, the peripheral speed difference between the peripheral portion and the central portion becomes large. , The accuracy of the central part tends to be insufficient. Therefore, conventionally, after the large end face 1a is processed once, the central part of the large end face 1a is reprocessed to finish the entire surface, or, as shown in FIG. This has been dealt with by providing means for reducing the processing area by providing the recessed portion 1c. However, the former requires additional man-hours, leading to higher costs. Further, in the latter case, due to the contact between the large end surface 1a and the cage 2, a galling phenomenon may occur at the edge P of the recessed portion 1c, which may lead to a shortened life of the bearing.
【０００６】 本考案は上記問題点に鑑みて提案されたもので、その目的とするところは、こ ろの大端面加工の簡略化を図ることにある。The present invention has been proposed in view of the above problems, and an object of the present invention is to simplify the large end face machining.
【０００７】[0007]
本考案では、ころの長手方向に沿った、大端面側のポケットすきまの最大値が 、小端面側のポケットすきまの最大値よりも大きくなるようにした。 In the present invention, the maximum value of the pocket clearance on the large end face side along the longitudinal direction of the roller is set to be larger than the maximum value of the pocket clearance on the small end face side.
【０００８】[0008]
ころの長手方向に沿った、大端面側のポケットすきまの最大値を、小端面側の ポケットすきまの最大値よりも大きくすることにより、大端面と保持器とが、常 に、非接触となる。 By making the maximum value of the pocket clearance on the large end surface side along the longitudinal direction of the roller larger than the maximum value of the pocket clearance on the small end surface side, the large end surface and the cage are always in non-contact. .
【０００９】[0009]
以下、本考案をスラスト円すいころ軸受に適用した場合について説明する。 The case where the present invention is applied to a thrust tapered roller bearing will be described below.
【００１０】 本考案に係わるスラスト円すいころ軸受は、図３に示すものと同一の構成を有 するが、図１に示すように、円すいころ１の大端面１ａの中心部にぬすみ部１ｃ を設けると共に、円すいころ１の長手方向に沿った、大端面１ａ側のポケットす きまＡの最大値Ａｍａｘが、小端面１ｂ側のポケットすきまＢの最大値Ｂｍａｘ よりも大きくなるようにしてある。尚、図１は、保持器２が矢印方向に最大距離 移動した場合を例示しており、２つの円すいころ１は保持器２の直径線上に対向 して位置する。同図に示す状態では、一方の側の円すいころ１（同図右上）の小 端面１ｂと保持器２とが接触しているが、大端面１ａと保持器２とは双方の側と も接触していない。次に、図１に示す状態から保持器が矢印と反対方向に移動す ると、最大値Ａｍａｘが最大値Ｂｍａｘよりも大きいから、今度は、他方の側の 円すいころ１（同図左下）の小端面１ｂと保持器２とが接触する。この場合も、 大端面１ａは双方の側とも接触しない。したがって、大端面１ｃと保持器２とは 、保持器２の移動方向に関係なく、常に、非接触になる。また、当然のことなが ら、図２における、ぬすみ部１ｃの淵縁部Ｐにかじり現象は発生しない。The thrust tapered roller bearing according to the present invention has the same configuration as that shown in FIG. 3, but as shown in FIG. 1, a tapered portion 1c is provided at the center of the large end surface 1a of the tapered roller 1. At the same time, the maximum value Amax of the pocket clearance A on the large end surface 1a side along the longitudinal direction of the tapered roller 1 is made larger than the maximum value Bmax of the pocket clearance B on the small end surface 1b side. Note that FIG. 1 illustrates the case where the cage 2 has moved the maximum distance in the direction of the arrow, and the two tapered rollers 1 are located on the diameter line of the cage 2 so as to face each other. In the state shown in the figure, the small end surface 1b of the tapered roller 1 (upper right in the figure) on one side is in contact with the cage 2, but the large end surface 1a and the cage 2 are also in contact with both sides. I haven't. Next, when the cage moves in the direction opposite to the arrow from the state shown in FIG. 1, the maximum value Amax is larger than the maximum value Bmax, so this time the tapered roller 1 on the other side (lower left in the figure) is moved. The small end face 1b and the cage 2 come into contact with each other. Also in this case, the large end surface 1a does not contact both sides. Therefore, the large end surface 1c and the cage 2 are always in non-contact with each other regardless of the moving direction of the cage 2. Further, as a matter of course, the galling phenomenon does not occur at the edge portion P of the recessed portion 1c in FIG.
【００１１】 本実施例では、大端面１ａにぬすみ部１ｃを設けてあるが、これは、主に、潤 滑効果の向上を目的としたものである。つまり、ぬすみ部１ｃの分だけポケット すきまＡが拡大され、その部分における潤滑剤の流通性が促進されるからである 。したがって、大端面加工の簡略化という観点からすれば、ぬすみ部１ｃは必ず しも必須ではない。仮に、ぬすみ部１ｃを設けず、かつ、大端面１ａの中心部を 再加工することなく、その部分の精度が不十分のまま使用したとしても、大端面 １ａと保持器２とが接触しないのであるから、軸受寿命等に何ら悪影響はない。 尚、以上の説明はスラスト円すいころ軸受に関するものであるが、本考案はス ラスト円筒ころ軸受にも適用することができる。In the present embodiment, the large end face 1a is provided with the recessed portion 1c, but this is mainly intended to improve the lubrication effect. That is, the pocket clearance A is enlarged by the amount of the recessed portion 1c, and the flowability of the lubricant in that portion is promoted. Therefore, from the viewpoint of simplifying the processing of the large end face, the recessed portion 1c is not always essential. Even if the hollow portion 1c is not provided and the center portion of the large end surface 1a is not re-machined and the precision of the portion is used with insufficient precision, the large end surface 1a and the cage 2 do not come into contact with each other. Therefore, there is no adverse effect on the bearing life or the like. Although the above description relates to the thrust tapered roller bearing, the present invention can also be applied to the thrust cylindrical roller bearing.
【００１２】[0012]
本考案によれば、ころの大端面と保持器とが、常に、非接触になるため、大端 面にぬすみ部を設けたり、あるいは、大端面の中心部の再加工を省略するといっ たことが可能となる。したがって、従来に比べて、円すいころの大端面加工を簡 略化することができ、工程管理、コスト管理上きわめて有利となる。 According to the present invention, since the large end surface of the roller and the cage are always in non-contact with each other, a recessed portion is provided on the large end surface, or remachining of the central part of the large end surface is omitted. Is possible. Therefore, it is possible to simplify the processing of the large end face of the tapered roller as compared with the conventional method, which is extremely advantageous in process control and cost control.
【図１】本考案の実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】円すいころの大端面側を示す側面図である。FIG. 2 is a side view showing a large end face side of a tapered roller.
【図３】スラスト円すいころ軸受の一般的構成を示す断
面図（図ａおよび図ｂ）である。FIG. 3 is a cross-sectional view (FIGS. A and b) showing a general configuration of a thrust tapered roller bearing.
【図４】図３における保持器と円すいころとを示す平面
図（図ａ）、および断面図（図ｂ）である4 is a plan view (FIG. A) and a sectional view (FIG. B) showing a cage and a tapered roller in FIG.
１ 円すいころ １ａ 大端面 １ｂ 小端面 ２ 保持器 ２ａ ポケット Ａ 大端面側のポケット隙間 Ａｍａｘ 最大値 Ｂ 小端面側のポケット隙間 Ｂｍａｘ 最大値 1 Tapered roller 1a Large end face 1b Small end face 2 Cage 2a Pocket A Large end face side pocket gap Amax maximum value B Small end face side pocket gap Bmax maximum value
Claims (1)
の軌道輪間に組入れたものであって、ころの長手方向に
沿った、大端面側のポケットすきまの最大値が、小端面
側のポケットすきまの最大値よりも大きくなるようにし
たことを特徴とするスラストころ軸受。1. A roller, which is accommodated in a pocket of a cage, is assembled between a pair of bearing rings, and the maximum pocket clearance on the large end face side along the longitudinal direction of the roller has a maximum value on the small end face side. A thrust roller bearing characterized by having a larger pocket clearance than the maximum value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9072491U JP2565007Y2 (en) | 1991-11-06 | 1991-11-06 | Thrust roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9072491U JP2565007Y2 (en) | 1991-11-06 | 1991-11-06 | Thrust roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0542748U true JPH0542748U (en) | 1993-06-11 |
| JP2565007Y2 JP2565007Y2 (en) | 1998-03-11 |
Family
ID=14006508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9072491U Expired - Fee Related JP2565007Y2 (en) | 1991-11-06 | 1991-11-06 | Thrust roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2565007Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017078480A (en) * | 2015-10-21 | 2017-04-27 | 日本精工株式会社 | Self-aligning roller bearing |
-
1991
- 1991-11-06 JP JP9072491U patent/JP2565007Y2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017078480A (en) * | 2015-10-21 | 2017-04-27 | 日本精工株式会社 | Self-aligning roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2565007Y2 (en) | 1998-03-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |