JP2002106575A - Cage for radial roller bearing - Google Patents
Cage for radial roller bearingInfo
- Publication number
- JP2002106575A JP2002106575A JP2000292784A JP2000292784A JP2002106575A JP 2002106575 A JP2002106575 A JP 2002106575A JP 2000292784 A JP2000292784 A JP 2000292784A JP 2000292784 A JP2000292784 A JP 2000292784A JP 2002106575 A JP2002106575 A JP 2002106575A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- column
- radial
- cage
- retainer
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
- F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
- F16C33/4676—Details of individual pockets, e.g. shape or roller retaining means of the stays separating adjacent cage pockets, e.g. guide means for the bearing-surface of the rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
- F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ラジアルころ軸受
用の保持器に係り、特に、マニュアルトランスミッショ
ンやオートマチックトランスミッション等の自動車用変
速機に用いられるラジアルニードル軸受に好適に使用可
能な保持器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cage for a radial roller bearing, and more particularly to a cage suitably used for a radial needle bearing used in a transmission for an automobile such as a manual transmission and an automatic transmission.
【０００２】[0002]
【従来の技術】上記のようなラジアルニードル軸受を例
に、図３及び図４を参照しながら従来の技術を説明す
る。ラジアルニードル軸受は、内輪と、外輪と、前記内
輪と前記外輪との間に転動自在に配設された複数のころ
１０と、複数のころ１０を軸受の周方向等配に保持する
金属製の保持器１と、で構成されている。2. Description of the Related Art A conventional technique will be described with reference to FIGS. 3 and 4, taking the above radial needle bearing as an example. The radial needle bearing includes an inner ring, an outer ring, a plurality of rollers 10 rotatably disposed between the inner ring and the outer ring, and a metal made of metal that holds the plurality of rollers 10 in a circumferential direction of the bearing. , And a retainer 1.
【０００３】なお、図３は、軸受の軸線に直交する平面
による断面を示した前記ラジアルニードル軸受の部分断
面図である。ただし、ころ１０と保持器１のみを図示し
て、内輪及び外輪の図示は省略してある。そして、図４
は、保持器１及びころ１０を軸受の径方向外方側から見
た部分展開図である。図３及び図４に示すように、ころ
１０は保持器１のポケット２内に収納されていて、軸受
の周方向等配に配置されている。そして、断面略矩形の
保持器１の柱３には凸状保持部４が突設されていて、こ
ろ１０が径方向外方に脱落しないように、ころ１０が凸
状保持部４によりポケット２内に保持されている。FIG. 3 is a partial sectional view of the radial needle bearing showing a section taken on a plane perpendicular to the axis of the bearing. However, only the roller 10 and the cage 1 are illustrated, and the illustration of the inner ring and the outer ring is omitted. And FIG.
FIG. 4 is a partially developed view of the cage 1 and the rollers 10 as viewed from a radially outer side of the bearing. As shown in FIGS. 3 and 4, the rollers 10 are housed in the pockets 2 of the cage 1 and are arranged at equal intervals in the circumferential direction of the bearing. The pillar 3 of the cage 1 having a substantially rectangular cross section is provided with a protruding holding portion 4, and the roller 10 is formed into a pocket 2 by the protruding holding portion 4 so that the roller 10 does not fall radially outward. Is held within.
【０００４】凸状保持部４についてさらに詳細に説明す
る。凸状保持部４は、柱３の両側部の径方向外方側に設
けられており、径方向外方且つころ１０の曲面（転動
面）に沿うような方向（図３では斜め上方）に延びてい
る。このような構造の凸状保持部４は、ころ１０の曲面
（転動面）に径方向外方側から接していて、ころ１０が
径方向外方に脱落しないように保持している。[0004] The convex holding section 4 will be described in more detail. The convex holding portions 4 are provided radially outward on both sides of the pillar 3, and extend radially outward and along the curved surface (rolling surface) of the roller 10 (obliquely upward in FIG. 3). Extends to. The convex holding portion 4 having such a structure is in contact with the curved surface (rolling surface) of the roller 10 from the radially outer side, and holds the roller 10 so as not to fall out radially.
【０００５】そして、この凸状保持部４は、柱３の両側
部の径方向外方側の部分を塑性変形させることにより、
形成されている。[0005] The convex holding portion 4 is formed by plastically deforming radially outward portions of both sides of the column 3.
Is formed.
【０００６】[0006]
【発明が解決しようとする課題】上記のようなラジアル
ニードル軸受においては、ころ１０の直径Ｄａが小さい
場合には問題ないが、ころ１０の直径Ｄａが大きくて、
ころ直径ＤａとＰＣＤ（ピッチ円直径）との比（ころ直
径Ｄａ／ＰＣＤ）が０．１２を越える場合には、隣接す
るポケット２，２間の角度（各ポケット２，２と軸受の
軸心とを結ぶ線の角度）が大きくなるので、ころ１０が
径方向外方に脱落することを防止するため、一般的な軸
受と比較して長い（柱３から外方に張り出している距離
が長い）凸状保持部４を設ける必要があった。特に、平
板状の部材を湾曲させて環状に形成し、両端部を溶接等
により接着することにより製造される保持器（以降は、
溶接保持器と記す）の場合には、その傾向が強かった。In the above radial needle bearing, there is no problem when the diameter Da of the roller 10 is small, but the diameter Da of the roller 10 is large.
If the ratio of the roller diameter Da to the PCD (pitch circle diameter) (roller diameter Da / PCD) exceeds 0.12, the angle between the adjacent pockets 2 and 2 (each pocket 2, 2 and the axis of the bearing) Is larger, the roller 10 is longer than the general bearing (the distance that projects outward from the column 3 is longer) in order to prevent the roller 10 from dropping radially outward. ) It was necessary to provide the convex holder 4. In particular, a retainer manufactured by bending a flat member into an annular shape and bonding both ends by welding or the like (hereinafter, a retainer)
In the case of welding retainers), the tendency was strong.
【０００７】しかしながら、従来の凸状保持部４の形成
方法は、保持器１の柱３のうち塑性変形させた部分Ａの
合計（両側部合わせて）が、柱３の幅Ｗの３０％未満と
小さいので（塑性変形させる部分の体積が小さい）、凸
状保持部４を長く形成しようとすると凸状保持部４の厚
みが薄くなってしまうという問題点があった。このた
め、ころ１０を保持器１のポケット２内に組み込む際
に、凸状保持部４が破損する恐れがあった。また、十分
な長さの凸状保持部４を設けることができない場合もあ
った。However, in the conventional method of forming the convex holding portion 4, the sum of the plastically deformed portions A of the column 3 of the cage 1 (together on both sides) is less than 30% of the width W of the column 3. (The volume of the portion to be plastically deformed is small), and there is a problem that the thickness of the convex holding portion 4 is reduced when the convex holding portion 4 is formed to be long. For this reason, when incorporating the roller 10 into the pocket 2 of the cage 1, there is a possibility that the convex holding portion 4 is damaged. In some cases, it is not possible to provide a convex holding portion 4 having a sufficient length.
【０００８】そこで本発明は、このような従来技術が有
する問題点を解決し、ころ直径とＰＣＤとの比（ころ直
径／ＰＣＤ）が０．１２を越えるラジアルころ軸受に適
用しても、ころの径方向外方への脱落を防止することが
でき、また、ころをポケット内に組み込む際に破損する
恐れの小さいラジアルころ軸受用保持器を提供すること
を課題とする。Therefore, the present invention solves such problems of the prior art, and is applicable to a radial roller bearing in which the ratio of roller diameter to PCD (roller diameter / PCD) exceeds 0.12. It is an object of the present invention to provide a radial roller bearing retainer that can prevent the roller from falling off in the radial direction and is less likely to be damaged when the roller is incorporated into a pocket.
【０００９】[0009]
【課題を解決するための手段】前記課題を解決するた
め、本発明は次のような構成からなる。すなわち、本発
明に係る請求項１記載のラジアルころ軸受用保持器は、
ころ直径／ＰＣＤが０．１２超過であるラジアルころ軸
受用の保持器であって、前記保持器の柱の一部から塑性
変形により形成されて、ころの転動面に前記ラジアルこ
ろ軸受の径方向外方側から接することにより前記ころを
保持する凸状保持部を、前記柱に突設するとともに、前
記柱のうち塑性変形された部分は、前記柱の幅の３０％
以上であることを特徴とする。In order to solve the above problems, the present invention has the following arrangement. That is, the radial roller bearing retainer according to claim 1 of the present invention includes:
A retainer for a radial roller bearing having a roller diameter / PCD exceeding 0.12, wherein the retainer is formed by plastic deformation from a part of a column of the retainer, and a diameter of the radial roller bearing is formed on a rolling surface of a roller. A convex retaining portion that retains the rollers by contacting from the outer side in the direction protrudes from the column, and the plastically deformed portion of the column has a width of 30% of the width of the column.
It is characterized by the above.
【００１０】このような構成であれば、ころ直径が大き
い場合でも、ころを保持するに十分な長さの凸状保持部
を前記柱に設けることができる。また、塑性変形させる
部分の体積が大きいので、前記凸状保持部の厚みを厚く
することができ、ころを保持器のポケット内に組み込む
際に前記凸状保持部が破損する恐れが小さい。また、本
発明に係る請求項２記載のラジアルころ軸受用保持器
は、ラジアルころ軸受用の保持器であって、前記保持器
の柱の一部から塑性変形により形成されて、ころの転動
面に前記ラジアルころ軸受の径方向外方側から接するこ
とにより前記ころを保持する凸状保持部を、前記柱に突
設するとともに、前記柱のうち塑性変形された部分は、
前記柱の幅の全体であることを特徴とする。With such a configuration, even when the roller diameter is large, the pillar can be provided with a convex holding portion having a length sufficient to hold the roller. In addition, since the volume of the portion to be plastically deformed is large, the thickness of the convex holding portion can be increased, and the risk that the convex holding portion is damaged when the rollers are incorporated in the pocket of the cage is small. A radial roller bearing retainer according to claim 2 of the present invention is a retainer for a radial roller bearing, wherein the retainer is formed by plastic deformation from a part of a column of the retainer, and the rolling of the roller is performed. A convex holding portion that holds the roller by contacting the surface from the radially outer side of the radial roller bearing is provided on the column, and the portion of the column that is plastically deformed is
It is characterized in that it is the entire width of the column.
【００１１】[0011]
【発明の実施の形態】本発明に係るラジアルころ軸受用
保持器の実施の形態を、図面を参照しながら詳細に説明
する。なお、本実施形態は本発明の一例を示したもので
あって、本発明は本実施形態に限定されるものではな
い。図１は、本発明のラジアルころ軸受用保持器を備え
たラジアルニードル軸受の構造を示す部分断面図であ
り、軸受の軸線に直交する平面による断面を示したもの
である。なお、ころ１０と保持器１のみを図示して、内
輪，外輪等の他の構成部材の図示は省略している。ま
た、図２は、保持器１及びころ１０を軸受の径方向外方
側から見た部分展開図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the radial roller bearing retainer according to the present invention will be described in detail with reference to the drawings. Note that the present embodiment is an example of the present invention, and the present invention is not limited to the present embodiment. FIG. 1 is a partial cross-sectional view showing the structure of a radial needle bearing provided with the radial roller bearing retainer of the present invention, and shows a cross section taken along a plane perpendicular to the axis of the bearing. Note that only the roller 10 and the cage 1 are illustrated, and other components such as the inner ring and the outer ring are not illustrated. FIG. 2 is a partially developed view of the cage 1 and the rollers 10 as viewed from a radially outer side of the bearing.
【００１２】このラジアルニードル軸受は、内輪，外
輪，ころ１０，及び溶接保持器１を備えていて、その構
造は前述の従来品とほぼ同様であるので、異なる部分の
み説明し、同様の部分の説明は省略する。なお、図１及
び図２においては、図３及び図４と同一又は相当する部
分には同一の符号を付してある。このラジアルニードル
軸受は、ころ１０の直径Ｄａが大きくて、ころ直径Ｄａ
とＰＣＤとの比（ころ直径Ｄａ／ＰＣＤ）が０．１２超
過となっている。そのため、ころ１０が径方向外方に脱
落することを防止するために、一般的な軸受と比較して
長い（柱３から外方に張り出している距離が長い）凸状
保持部４を設けてある。This radial needle bearing is provided with an inner ring, an outer ring, a roller 10 and a welding retainer 1, and its structure is almost the same as the above-mentioned conventional product. Therefore, only different parts will be described. Description is omitted. In FIGS. 1 and 2, the same or corresponding parts as those in FIGS. 3 and 4 are denoted by the same reference numerals. In this radial needle bearing, the diameter Da of the roller 10 is large and the roller diameter Da is large.
And the ratio of PCD (roller diameter Da / PCD) exceeds 0.12. Therefore, in order to prevent the rollers 10 from dropping outward in the radial direction, the convex holding portions 4 that are longer (the lengths projecting outward from the pillars 3 are longer) than the general bearings are provided. is there.
【００１３】保持器１の柱３のうち塑性変形させた部分
Ａの合計（両側部合わせて）は、柱３の幅Ｗの１００％
（すなわち、柱３の幅Ｗの全体を塑性変形させた）とな
っているので、塑性変形させた部分の体積が大きく、十
分な長さの凸状保持部４を設けることができ、また、長
い凸状保持部４を形成しても凸状保持部４の厚みが薄く
なるという問題がない。したがって、ころ１０を保持器
１のポケット２内に組み込む際に凸状保持部４が破損す
る恐れが小さい。The sum of the plastically deformed portions A of the columns 3 of the cage 1 (together on both sides) is 100% of the width W of the columns 3.
(Ie, the entire width W of the column 3 is plastically deformed), so that the volume of the plastically deformed portion is large and the convex holding portion 4 having a sufficient length can be provided. Even if the long convex holding portion 4 is formed, there is no problem that the thickness of the convex holding portion 4 becomes thin. Therefore, when the roller 10 is incorporated into the pocket 2 of the retainer 1, the possibility that the convex retaining portion 4 is damaged is small.
【００１４】柱３の一部を塑性変形させる方法は特に限
定されるものではなく、金属を塑性変形させるための慣
用の方法を用いることができる。例えば、金型で押圧す
ることにより塑性変形させる方法があげられる。なお、
本実施形態においては、ラジアルころ軸受としてラジア
ルニードル軸受を例示して説明したが、本発明のラジア
ルころ軸受用保持器は、他の種類のラジアルころ軸受に
も適用可能である。例えば、円筒ころ軸受，棒状ころ軸
受等である。The method of plastically deforming a part of the column 3 is not particularly limited, and a conventional method for plastically deforming a metal can be used. For example, there is a method of plastically deforming by pressing with a mold. In addition,
In the present embodiment, the radial needle bearing is described as an example of the radial roller bearing, but the radial roller bearing retainer of the present invention can be applied to other types of radial roller bearings. For example, cylindrical roller bearings, rod roller bearings, and the like.
【００１５】また、本実施形態の保持器１には、柱３の
径方向内方側にもころ１０の脱落を防止する突起を設け
ているが（図１参照）、この突起は設けなくてもよい。The retainer 1 of this embodiment is provided with a projection on the radially inner side of the column 3 to prevent the roller 10 from falling off (see FIG. 1). However, this projection is not provided. Is also good.
【００１６】[0016]
【発明の効果】以上のように、本発明のラジアルころ軸
受用保持器は、ころ直径／ＰＣＤが０．１２を越えるラ
ジアルころ軸受に適用しても、ころの径方向外方への脱
落を防止することができる。また、塑性変形させる部分
の体積が大きいので、前記凸状保持部の厚みを厚くする
ことができて、ころを保持器のポケット内に組み込む際
に破損する恐れが小さい。As described above, the cage for a radial roller bearing of the present invention can prevent the rollers from falling off in the radial direction even when applied to a radial roller bearing having a roller diameter / PCD exceeding 0.12. Can be prevented. In addition, since the volume of the portion to be plastically deformed is large, the thickness of the convex holding portion can be increased, and the risk of damage when the rollers are incorporated into the pocket of the cage is small.
【図１】ラジアルニードル軸受の構造を示す部分断面図
である。FIG. 1 is a partial sectional view showing the structure of a radial needle bearing.
【図２】図１の保持器及びころを軸受の径方向外方側か
ら見た部分展開図である。FIG. 2 is a partially developed view of the cage and rollers of FIG. 1 as viewed from a radially outer side of a bearing.
【図３】従来のラジアルニードル軸受の構造を示す部分
断面図である。FIG. 3 is a partial sectional view showing the structure of a conventional radial needle bearing.
【図４】図３の保持器及びころを軸受の径方向外方側か
ら見た部分展開図である。FIG. 4 is a partially developed view of the cage and rollers of FIG. 3 as viewed from a radially outer side of a bearing.
１ 保持器 ３ 柱 ４ 凸状保持部 １０ ころ Ａ 塑性変形させた部分 Ｗ 柱の幅 DESCRIPTION OF SYMBOLS 1 Cage 3 Pillar 4 Convex holding part 10 Roller A Plastically deformed part W Column width
Claims (2)
ラジアルころ軸受用の保持器であって、前記保持器の柱
の一部から塑性変形により形成されて、ころの転動面に
前記ラジアルころ軸受の径方向外方側から接することに
より前記ころを保持する凸状保持部を、前記柱に突設す
るとともに、前記柱のうち塑性変形された部分は、前記
柱の幅の３０％以上であることを特徴とするラジアルこ
ろ軸受用保持器。1. A retainer for a radial roller bearing having a roller diameter / PCD exceeding 0.12, wherein the retainer is formed by plastic deformation from a part of a pillar of the retainer, and the roller has a rolling surface. A convex holding portion for holding the roller by being in contact with a radially outer side of the radial roller bearing protrudes from the column, and a plastically deformed portion of the column has a width of 30% of the width of the column. A retainer for a radial roller bearing, characterized in that:
前記保持器の柱の一部から塑性変形により形成されて、
ころの転動面に前記ラジアルころ軸受の径方向外方側か
ら接することにより前記ころを保持する凸状保持部を、
前記柱に突設するとともに、前記柱のうち塑性変形され
た部分は、前記柱の幅の全体であることを特徴とするラ
ジアルころ軸受用保持器。2. A cage for a radial roller bearing, comprising:
Formed by plastic deformation from a part of the column of the retainer,
A convex holding portion that holds the roller by contacting the rolling surface of the roller from the radially outer side of the radial roller bearing,
A radial roller bearing retainer protruding from the column and having a plastically deformed portion of the column being the entire width of the column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000292784A JP2002106575A (en) | 2000-09-26 | 2000-09-26 | Cage for radial roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000292784A JP2002106575A (en) | 2000-09-26 | 2000-09-26 | Cage for radial roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002106575A true JP2002106575A (en) | 2002-04-10 |
Family
ID=18775671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000292784A Pending JP2002106575A (en) | 2000-09-26 | 2000-09-26 | Cage for radial roller bearing |
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| Country | Link |
|---|---|
| JP (1) | JP2002106575A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003029670A1 (en) * | 2001-09-10 | 2003-04-10 | Nsk Ltd. | Roller bearing, and double row cylindrical roller bearing |
| WO2006075658A1 (en) * | 2005-01-13 | 2006-07-20 | Nsk Ltd. | Cam follower device |
| DE112011101737T5 (en) | 2010-05-21 | 2013-06-27 | Ntn Corp. | Rolling bearings and manufacturing method therefor |
| FR3032501A1 (en) * | 2015-02-05 | 2016-08-12 | Ntn-Snr Roulements | MONOBLOC CAGE FOR CYLINDRICAL ROLLER BEARING |
-
2000
- 2000-09-26 JP JP2000292784A patent/JP2002106575A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003029670A1 (en) * | 2001-09-10 | 2003-04-10 | Nsk Ltd. | Roller bearing, and double row cylindrical roller bearing |
| US7530743B2 (en) | 2001-09-10 | 2009-05-12 | Nsk Ltd. | Double row cylindrical roller bearing |
| WO2006075658A1 (en) * | 2005-01-13 | 2006-07-20 | Nsk Ltd. | Cam follower device |
| DE112011101737T5 (en) | 2010-05-21 | 2013-06-27 | Ntn Corp. | Rolling bearings and manufacturing method therefor |
| FR3032501A1 (en) * | 2015-02-05 | 2016-08-12 | Ntn-Snr Roulements | MONOBLOC CAGE FOR CYLINDRICAL ROLLER BEARING |
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