JP2003206924A - Inner and outer ring integral type radial roller bearing - Google Patents
Inner and outer ring integral type radial roller bearingInfo
- Publication number
- JP2003206924A JP2003206924A JP2002005663A JP2002005663A JP2003206924A JP 2003206924 A JP2003206924 A JP 2003206924A JP 2002005663 A JP2002005663 A JP 2002005663A JP 2002005663 A JP2002005663 A JP 2002005663A JP 2003206924 A JP2003206924 A JP 2003206924A
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- ring
- inner ring
- bearing
- cage
- 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
- F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
-
- 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
-
- 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
-
- 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
- F16C33/58—Raceways; Race rings
- F16C33/588—Races of sheet metal
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】この発明は、内輪と外輪とが
互いに分離しないようにした内外輪一体型のラジアルこ
ろ軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner and outer ring integrated radial roller bearing in which an inner ring and an outer ring are not separated from each other.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】ころ軸受
は、転動体がころであるため、玉軸受と異なり、転動体
を介して内輪と外輪とが分離しないようにはならず、一
般的には内輪と外輪とが軸方向に互いに分離自在な構造
となっている。ころ軸受においても、搬送や、取扱い
性、軸受使用機器への組込み性の面からは、内輪と外輪
が互いに分離しない一体化構造が好ましい。このような
要請に応えるラジアルころ軸受において、図５に示すも
のが提案されている（特開２０００−３２０６４６号公
報）。これは、外輪３２の両端に縁曲げ片３２ａと鍔３
２ｂを形成すると共に、内輪３１の一端に鍔３１ａを形
成し、これら縁曲げ片３２ａと鍔３１ａの係合により、
内輪３１と外輪３２とが軸方向に非分離となるようにし
たものである。2. Description of the Related Art Roller bearings are rollers, and therefore, unlike ball bearings, the inner ring and the outer ring are not prevented from being separated from each other through the rolling elements, Has a structure in which an inner ring and an outer ring are axially separable from each other. Also in the roller bearing, an integrated structure in which the inner ring and the outer ring are not separated from each other is preferable from the viewpoints of transportability, handleability, and incorporation into bearing-using equipment. As a radial roller bearing that meets such a request, a radial roller bearing shown in FIG. 5 has been proposed (JP 2000-320646 A). This is because the edge bending pieces 32a and the collar 3 are provided on both ends of the outer ring 32.
2b is formed, a flange 31a is formed at one end of the inner ring 31, and the edge bending pieces 32a and the flange 31a are engaged with each other.
The inner ring 31 and the outer ring 32 are axially non-separable.
【０００３】しかし、内輪３１の一端に、係合を目的と
した鍔３１ａを外輪３２の縁曲げ片３２ａに重複して設
けるため、軸受幅が縁曲げ片３２ａの板厚分だけ大きく
なってしまう。また、縁曲げ片を設ける場合、軸受の組
立の都合上、組立過程で外輪３２に縁曲げを行うことに
なる。この組立過程の縁曲げは、焼入れ状態では行え
ず、外輪３２の焼きなましが必要となる。この焼きなま
しは外輪３２の軌道面まで影響し、軌道面の硬度低下が
生じる。However, since the flange 31a for the purpose of engagement is provided at one end of the inner ring 31 so as to overlap the edge bending piece 32a of the outer ring 32, the bearing width is increased by the plate thickness of the edge bending piece 32a. . Further, when the edge bending piece is provided, the edge of the outer ring 32 is bent during the assembly process for the convenience of assembling the bearing. The edging in this assembly process cannot be performed in the quenched state, and the outer ring 32 needs to be annealed. This annealing affects the raceway surface of the outer ring 32, and the hardness of the raceway surface decreases.
【０００４】なお、スラストころ軸受においては、対面
する軌道輪を互いに非分離とするものが各種提案されて
いる（例えば、実用新案登録第２５６８８６２号、特許
第３０８８８３２号、特開平２−５１６１５号、特願２
０００−２９１６１６号など）。しかしスラスト軸受と
アジアル軸受とでは、軌道輪が軸方向に対面するか、内
外に対面するかで異なるため、軌道輪間の非分離化の構
造を応用することができない。As thrust roller bearings, various proposals have been made in which the bearing rings facing each other are not separated from each other (for example, Utility Model Registration No. 2568862, Japanese Patent No. 3088832, Japanese Unexamined Patent Publication No. 2-51615, Japanese Patent Application 2
000-291616). However, thrust bearings and Asian bearings differ depending on whether the bearing rings face the axial direction or face the inside and outside, and therefore a non-separated structure between the bearing rings cannot be applied.
【０００５】この発明の目的は、内外輪を非分離としな
がら、軸受幅を小さくでき、かつ非分離化のために軌道
面の硬度低下等の不利益を伴わない内外輪一体型ラジア
ルころ軸受を提供することを目的とする。An object of the present invention is to provide a radial roller bearing with integral inner and outer rings, which is capable of reducing the bearing width while making the inner and outer rings non-separable, and which is free from disadvantages such as reduction in hardness of raceways due to the non-separation. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】この発明における第１の
発明の内外輪一体型ラジアルころ軸受は、保持器が内輪
と外輪とに係合することにより、内輪と外輪とが非分離
とされたものである。保持器に係合させて内外輪を非分
離とするため、内外輪に鍔と重複した縁曲げ部分を設け
ることが不要で、非分離としながら、軸受幅を小さくで
きる。縁曲げが不要なため、縁曲げのための焼きなまし
が不要となり、軌道面の硬度低下が回避できる。また、
保持器は内輪と外輪の中間の速度で回転するため、内輪
および外輪と係合させても、内輪と外輪とが直接に係合
するものと異なり、係合部分の速度差が小さくて発熱や
摩耗が少ない。In the inner and outer ring integrated radial roller bearing according to the first aspect of the present invention, the cage is engaged with the inner ring and the outer ring so that the inner ring and the outer ring are not separated. It is a thing. Since the inner ring and the outer ring are not separated by engaging with the cage, it is not necessary to provide the inner and outer rings with the edge-bending portion that overlaps with the flange, and the bearing width can be reduced while not separating. Since the edge bending is not necessary, the annealing for the edge bending is not necessary, and the hardness reduction of the raceway surface can be avoided. Also,
Since the cage rotates at an intermediate speed between the inner ring and the outer ring, even if the cage is engaged with the inner ring and the outer ring, unlike the case where the inner ring and the outer ring are directly engaged, the difference in speed of the engaging portion is small and heat generation or Little wear.
【０００７】この発明の内外輪一体型ラジアルころ軸受
は、内輪および外輪の互いに軸方向の反対側の端部に鍔
を有し、上記内輪と外輪の間に介在した複数のころを保
持する保持器を有し、この保持器は、内輪および外輪の
鍔の先端がそれぞれ保持器に軸方向に対して係合する係
合部を両側縁に有するものとしても良い。この構成の軸
受は、第１の発明の内外輪一体型ラジアルころ軸受にお
いて、保持器が内輪と外輪とに係合することにより、内
輪と外輪とを非分離となる構成を具体化したものであ
る。内輪および外輪の鍔の先端を保持器の側縁の係合部
に係合させるため、鍔を非分離化に利用でき、非分離化
のための専用の縁曲げ部等を内外輪に設ける必要がなく
て、軸受幅の広がりを避けられる。また、保持器の側縁
部分を利用して鍔を係合させるため、より一層の幅狭化
が可能である。すなわち、保持器の側縁部分は鍔と径方
向に対向する位置に配置されることになるため、通常の
保持器の側縁部分をころと鍔の軸方向隙間に配置する構
成の軸受に比べて、保持器側縁部分の幅に対応する分だ
け、軸受幅を狭めることができる。またこの構成の場
合、上記鍔は、内輪および外輪の互いに軸方向の反対側
の端部に設けるため、内外輪にはそれぞれ一つの鍔を設
けるだけであるが、両鍔付きの軸受構造となる。The inner and outer ring integrated type radial roller bearing of the present invention has a collar at the ends of the inner ring and the outer ring which are opposite to each other in the axial direction, and holds the plurality of rollers interposed between the inner ring and the outer ring. The retainer may have a retainer, and the retainer may have engaging portions on both side edges at which the tips of the collars of the inner ring and the outer ring respectively engage with the retainer in the axial direction. The bearing having this configuration is a radial roller bearing of the first and second aspects of the present invention in which the inner ring and the outer ring are non-separated by the retainer engaging the inner ring and the outer ring. is there. Since the tips of the flanges of the inner ring and the outer ring are engaged with the engaging parts of the side edges of the cage, the flange can be used for non-separation, and it is necessary to provide the inner and outer rings with a dedicated edge bending part for non-separation. Therefore, it is possible to avoid widening of the bearing width. Further, since the brim is engaged by utilizing the side edge portion of the cage, the width can be further narrowed. That is, since the side edge portion of the cage is arranged at a position that faces the flange in the radial direction, compared to a bearing having a configuration in which the side edge portion of a normal cage is arranged in the axial gap between the roller and the collar. Thus, the bearing width can be narrowed by an amount corresponding to the width of the cage side edge portion. Further, in the case of this configuration, since the flanges are provided at the ends of the inner ring and the outer ring that are opposite to each other in the axial direction, only one flange is provided for each of the inner ring and the outer ring, but a bearing structure with both flanges is provided. .
【０００８】このように内外輪の鍔の先端を保持器に係
合させる構成とする場合に、内輪および外輪を鋼板のプ
レス成形品としても良い。また、これら内外輪の鍔は、
先端がころ側へ傾くように傾斜させたものとしても良
い。内外輪の鍔をころ側へ傾斜したものとすると、その
傾斜分だけ、保持器の縁に設けられる係合部の位置を軸
受中心側へ位置させることができる。そのため、軸受幅
をより小さくすることができる。内外輪を鋼板のプレス
成形品とすると、傾斜した鍔の形成が容易に行える。When the tips of the flanges of the inner and outer races are engaged with the retainer in this way, the inner and outer races may be press-formed products of steel plates. Also, these inner and outer ring collars are
The tip may be inclined so that it is inclined toward the roller. If the flanges of the inner and outer races are inclined toward the rollers, the position of the engaging portion provided on the edge of the cage can be positioned toward the bearing center side by the amount of the inclination. Therefore, the bearing width can be made smaller. If the inner and outer rings are press-formed products of steel plates, inclined collars can be easily formed.
【０００９】また上記のように内外輪の鍔の先端を保持
器に係合させる構成とする場合に、上記保持器を合成樹
脂製とし、上記係合部を円周溝としても良い。保持器を
合成樹脂製とすると、その樹脂の持つ弾性のため、組立
時に保持器の係合部への内外輪の鍔の係合を容易に行う
ことができる。また、保持器を合成樹脂製とすると、樹
脂の持つ自己潤滑性のため、係合部における接触が滑ら
かに行われる。係合部が円周溝であると、その係合部の
形成が容易である。When the tip ends of the flanges of the inner and outer races are engaged with the retainer as described above, the retainer may be made of synthetic resin and the engaging portion may be a circumferential groove. When the cage is made of synthetic resin, the elasticity of the resin allows the flanges of the inner and outer rings to be easily engaged with the engaging portions of the cage during assembly. Further, when the cage is made of synthetic resin, the self-lubricating property of the resin allows smooth contact at the engaging portion. When the engaging portion is a circumferential groove, the engaging portion can be easily formed.
【００１０】この発明における第２の発明の内外輪一体
型ラジアルころ軸受は、内輪および外輪の互いに軸方向
の反対側の端部に鍔を有し、内輪および外輪のいずれか
片方または両方における上記鍔を設けた端部と反対側の
端部に、この端部と対向する鍔の先端に軸受外側から係
合する爪部を有するものである。この構成の場合、鍔に
爪部が係合することで、内輪と外輪が軸方向に分離する
ことが阻止される。内輪および外輪は、互いに反対の端
部に設けられた鍔を非分離化に利用し、これらの鍔に上
記爪部を係合させるため、鍔とは別に係合用の縁曲げ部
を設ける必要がなくて、軸受け幅が小さくて済む。この
構成の場合も、鍔は内輪および外輪の互いに軸方向の反
対側の端部に設けるため、内外輪にはそれぞれ一つの鍔
を設けるだけであるが、両鍔付きの軸受構造とできる。The inner / outer ring integrated radial roller bearing of the second aspect of the present invention has a flange at the ends of the inner ring and the outer ring that are axially opposite to each other, and the inner ring and the outer ring have one or both of them. At the end opposite to the end where the flange is provided, a claw portion that engages from the outside of the bearing is provided at the tip of the flange facing the end. In the case of this configuration, the claw portion is engaged with the flange, thereby preventing the inner ring and the outer ring from being separated from each other in the axial direction. For the inner ring and the outer ring, the collars provided at the opposite ends are used for non-separation, and the claw portions are engaged with these collars, so that it is necessary to provide an edge bending portion for engagement separately from the collar. No need for a small bearing width. Also in this structure, since the flanges are provided at the ends of the inner ring and the outer ring that are opposite to each other in the axial direction, only one flange is provided for each of the inner ring and the outer ring, but a bearing structure with both flanges can be provided.
【００１１】この構成の内外輪一体型ラジアルころ軸受
において、上記爪部を係合させる鍔の先端面を、軸受内
側が突出する傾斜面としても良い。このように傾斜面と
すると、爪部の係合が確実となる。なお、この傾斜面
は、同じ方向の傾斜を有しておれば良く、曲面であって
も良い。In the inner / outer ring integrated radial roller bearing having this structure, the tip end surface of the flange for engaging the above-mentioned claw portion may be an inclined surface with the inside of the bearing protruding. With such an inclined surface, the engagement of the claw portion is ensured. It should be noted that this inclined surface may have a curved surface in the same direction and may be a curved surface.
【００１２】[0012]
【発明の実施の形態】この発明の第１の実施形態を図１
と共に説明する。この内外輪一体型ラジアルころ軸受
は、内輪１と外輪２の軌道面１ａ，２ａ間に複数のころ
３を介在させ、これらのころ３を保持器４のポケット４
ｃ内に保持させたものであり、保持器４が内輪１と外輪
２に係合することにより、内輪１と外輪２が非分離とな
るようにしている。この非分離は次の構成で行われる。1 is a block diagram of a first embodiment of the present invention.
Will be explained together. This inner / outer ring integrated radial roller bearing has a plurality of rollers 3 interposed between the raceways 1a and 2a of the inner ring 1 and the outer ring 2, and these rollers 3 are inserted into the pockets 4 of the cage 4.
The inner ring 1 and the outer ring 2 are not separated from each other when the cage 4 is engaged with the inner ring 1 and the outer ring 2. This non-separation is performed by the following structure.
【００１３】内輪１の軸方向の一端部に外向きの鍔１ｂ
が形成されると共に、外輪２の内輪鍔１ｂとは反対側の
端部に、内向きの鍔２ｂが形成されている。これらの鍔
１ｂ，２ｂは、いずれも先端がころ３側へ傾くように傾
斜している。保持器４の内径面４ａは、内輪鍔１ｂの対
向する側縁部分が中間部分よりも外径側に拡径した段差
面４ａａとされており、この段差面４ａａに内輪鍔１ｂ
の係合する係合部５Ａが形成されている。保持器４の外
径面４ｂは、外輪鍔２ｂの対向する他側縁が、中間部分
よりも内径側に縮径した段差面４ｂｂとされており、こ
の段差面４ｂｂに外輪鍔２ｂの係合する係合部５Ｂが形
成されている。各係合部５Ａ，５Ｂは、保持器４の円周
方向に延びる円周溝とされている。An outer flange 1b is provided at one axial end of the inner ring 1.
And an inward facing flange 2b is formed at the end of the outer ring 2 opposite to the inner ring flange 1b. Both of these collars 1b and 2b are inclined so that their tips are inclined toward the roller 3 side. The inner diameter surface 4a of the cage 4 is a step surface 4aa in which the opposite side edge portions of the inner ring collar 1b are expanded to the outer diameter side from the intermediate portion, and the inner ring collar 1b is attached to the step surface 4aa.
Is formed with the engaging portion 5A. The outer diameter surface 4b of the retainer 4 has a stepped surface 4bb on the other side edge of the outer ring collar 2b which is opposed to the inner diameter side of the outer ring collar 2b. The stepped surface 4bb is engaged with the outer ring collar 2b. The engaging portion 5B is formed. Each of the engaging portions 5A and 5B is a circumferential groove extending in the circumferential direction of the cage 4.
【００１４】内輪１および外輪２は鋼板のプレス加工品
からなる。保持器４は合成樹脂製とされているが、金属
製としても良い。The inner ring 1 and the outer ring 2 are made of pressed steel plates. The cage 4 is made of synthetic resin, but may be made of metal.
【００１５】この軸受の組立は次のように行われる。こ
ろ３と共に保持器４を内輪１と外輪２の間に配置する。
この状態では、内外輪１，２の鍔１ｂ，２ｂは保持器４
の側縁から外側へ外れた状態である。この後、内輪１お
よび外輪２を、各々ころ３の位置する内側へ押し込む。
これにより、内外輪１，２の各鍔１ｂ，２ｂの先端が、
保持器４の対応する係合部５Ａ，係合部５Ｂにそれぞれ
係合し、組立が完了する。The assembly of this bearing is performed as follows. The cage 4 together with the rollers 3 is arranged between the inner ring 1 and the outer ring 2.
In this state, the collars 1b and 2b of the inner and outer rings 1 and 2 are attached to the cage 4
It is in a state of being detached from the side edge of the. After that, the inner ring 1 and the outer ring 2 are respectively pushed inward where the rollers 3 are located.
As a result, the tips of the collars 1b, 2b of the inner and outer rings 1, 2 are
The retainer 4 is engaged with the corresponding engaging portions 5A and 5B, respectively, and the assembly is completed.
【００１６】この構成によると、内輪１および外輪２の
鍔１ｂ，２ｂが保持器４の側縁の係合部５Ａ，５Ｂに係
合することにより、保持器４と鍔１ｂ，２ｂの間で内外
輪１，２の軸方向移動が拘束され、内外輪１，２が非分
離となる。このように内外輪１，２が非分離となるた
め、軸受の搬送・取扱い・組立性が向上する。内外輪
１，２の鍔１ｂ，２ｂと保持器４の側縁とを非分離化に
利用するため、内外輪１，２に鍔１ｂ，２ｂと重複した
縁曲げ部分を設けることが不要で、非分離としながら、
軸受幅を小さくできる。また、保持器４の側縁部分を利
用して鍔１ｂ，２ｂを係合させるため、より一層の幅狭
化が可能である。すなわち、保持器４の側縁部分は、鍔
１ｂ，２ｂと径方向に対向する位置に配置されることに
なるため、図５の例などに示す保持器３３の側縁部分３
３ａをころ３４の端面と鍔３２ａ，３２ｂの軸方向隙間
に配置する構成の軸受に比べて、保持器側縁部分３３ａ
の幅に対応する分だけ、軸受幅を狭めることができる。
この実施形態の軸受は、図５の従来例と比較すると、同
図の縁曲げ部分３２ａの板厚分と、保持器３３の両側の
側縁部分３３ａの幅分の合計だけ、軸受幅を狭めること
ができる。この場合に、内外輪１，２の鍔１ｂ，２ｂ
を、先端がころ３側へ傾くように傾斜させてあることか
ら、保持器４の係合部５Ａ，係合部５Ｂをできるだけ中
心側に配置することができて、上記の幅狭化が容易にな
る。According to this structure, the collars 1b and 2b of the inner ring 1 and the outer ring 2 are engaged with the engaging portions 5A and 5B of the side edge of the cage 4, thereby allowing the cage 4 and the collars 1b and 2b to be connected. The axial movement of the inner and outer rings 1, 2 is restricted, and the inner and outer rings 1, 2 are not separated. Since the inner and outer rings 1 and 2 are not separated in this way, the transportability, handling, and assembly of the bearing are improved. Since the collars 1b and 2b of the inner and outer rings 1 and 2 and the side edges of the cage 4 are used for non-separation, it is not necessary to provide the inner and outer rings 1 and 2 with edge bending portions overlapping with the collars 1b and 2b. While not separating
The bearing width can be reduced. Further, since the flanges 1b and 2b are engaged with each other by utilizing the side edge portions of the cage 4, it is possible to further narrow the width. That is, the side edge portion 3 of the cage 33 shown in the example of FIG. 5 and the like is arranged because the side edge portion of the cage 4 is arranged at a position that faces the collars 1b and 2b in the radial direction.
Compared with a bearing having a configuration in which 3a is arranged in the axial gap between the end surface of the roller 34 and the collars 32a and 32b, the cage side edge portion 33a
The bearing width can be reduced by the amount corresponding to the width of the bearing.
Compared with the conventional example of FIG. 5, the bearing of this embodiment has the bearing width narrowed by the total thickness of the edge bent portion 32a and the width of the side edge portions 33a on both sides of the retainer 33 in FIG. be able to. In this case, the collars 1b, 2b of the inner and outer rings 1, 2
Since the tip is inclined so that the tip is inclined toward the roller 3, the engaging portions 5A and 5B of the retainer 4 can be arranged as close to the center as possible, and the above-described narrowing is easy. become.
【００１７】また、この実施形態の軸受は、内外輪１，
２の縁曲げが不要なため、縁曲げのための焼きなましが
不要となり、軌道面１ａ，２ａの硬度低下が回避でき
る。縁曲げ工程がないことによるコスト削減も得られ
る。鍔１ｂ，２ｂと保持器４に形成された係合部５Ａ，
５Ｂとで非分離とするため、部品点数の増加がなく、こ
れによっても安価に製造できる。また、内輪１と外輪２
とが接触しないため、発熱，摩耗が少ない。保持器４と
接触するが、保持器４は内輪１と外輪２の中間の速度で
回転するため、接触しても速度差が小さく、発熱や摩耗
が少ない。Further, the bearing of this embodiment has the inner and outer rings 1,
Since the edging of No. 2 is unnecessary, the annealing for edging is not necessary, and the decrease in hardness of the raceways 1a and 2a can be avoided. There is also a cost savings due to the lack of an edge bending step. Engaging portions 5A formed on the collars 1b, 2b and the cage 4,
Since it is not separated from 5B, there is no increase in the number of parts, and this also makes it possible to manufacture at low cost. Also, the inner ring 1 and the outer ring 2
Since there is no contact with, there is little heat generation and wear. Although it comes into contact with the cage 4, the cage 4 rotates at an intermediate speed between the inner ring 1 and the outer ring 2, so that even if they come into contact with each other, the speed difference is small, and heat generation and wear are small.
【００１８】内輪１および外輪２は鋼板のプレス加工品
としているので、安価に製造することができる。また、
保持器４を合成樹脂製とし、その係合部５Ａ，５Ｂを円
周溝としているので、組立時に保持器４の係合部５Ａ，
５Ｂへ内外輪１，２の鍔１ｂ，２ｂを係合させる作業を
容易に行うことができ、軸受の組立が容易である。Since the inner ring 1 and the outer ring 2 are made of pressed steel plates, they can be manufactured at low cost. Also,
Since the cage 4 is made of synthetic resin and the engaging portions 5A, 5B thereof are circumferential grooves, the engaging portions 5A, 5A of the cage 4 are assembled at the time of assembly.
The work of engaging the collars 1b, 2b of the inner and outer races 1, 2 with 5B can be easily performed, and the assembly of the bearing is easy.
【００１９】図２は、この発明の第２の実施形態を示
す。この実施形態は、第１の実施形態の内外輪一体型ラ
ジアルころ軸受において、内輪１の鍔１ｂと係合する保
持器４の係合部５Ａを、段差面４ａａの端部から内径側
に突出する円周突条とし、外輪２の鍔２ｂと係合する係
合部５Ｂも、段差面４ｂｂの端部から外径側に突出する
円周突条としている。内外輪１，２の鍔１ｂ，２ｂは、
軸方向に対して垂直に向けたものとしている。その他の
構成は第１の実施形態と同じである。FIG. 2 shows a second embodiment of the present invention. In this embodiment, in the radial roller bearing integrated with the inner and outer rings of the first embodiment, the engaging portion 5A of the retainer 4 that engages with the collar 1b of the inner ring 1 is projected from the end of the step surface 4aa to the inner diameter side. The engaging portion 5B that engages with the flange 2b of the outer ring 2 is also a circumferential ridge that projects outward from the end of the step surface 4bb. The collars 1b and 2b of the inner and outer rings 1 and 2 are
The orientation is perpendicular to the axial direction. Other configurations are the same as those in the first embodiment.
【００２０】この実施形態の場合も、従来例のように内
外輪を互いに係合させる縁曲げ部分を鍔１ｂ，２ｂと重
複して形成する必要がなく、軸受幅を小さくすることが
できる。鍔１ｂ，２ｂは、軸方向に対して垂直としてい
るが、その他の構成については、第１の実施形態で説明
した他の各種の効果が得られる。Also in the case of this embodiment, it is not necessary to form the edge-bending portions for engaging the inner and outer rings with each other so as to overlap with the collars 1b and 2b as in the conventional example, and the bearing width can be reduced. The collars 1b and 2b are perpendicular to the axial direction, but with respect to other configurations, various other effects described in the first embodiment can be obtained.
【００２１】図３は、この発明の第３の実施形態を示
す。この実施形態の内外輪一体型ラジアルころ軸受は、
内輪１１と外輪１２の軌道面１１ａ，１２ａ間に複数の
ころ１３を介在させたものである。内輪１１の軸方向の
一端部には外向きの鍔１１ｂが形成され、外輪１２の内
輪鍔１１ｂとは反対側の端部には内向きの鍔１２ｂが形
成されている。外輪１２の鍔１２ｂと反対側の端部にお
ける円周方向の複数箇所には、この端部と径方向に対向
する内輪１１の鍔１１ｂの先端に係合する爪部１４が形
成されている。爪部１４は、鍔１１ｂに対して軸受外側
から係合し、この係合により、内輪１１と外輪１２が非
分離に一体化される。爪部１４は、外輪１２の端部の円
周方向の一部を内径側に突出するように塑性変形させて
形成したものである。爪部１４は、軸受外側が次第に高
く突出する形状とされている。また、爪部１４は、正面
側から見て、円弧状に突出した形状としてある。内輪１
１の外向き鍔１１ｂの先端は、外輪爪部１４が径方向に
係合可能なように、軸受内側が突出する傾斜面とされて
いる。この先端面は、詳細には、外輪爪部１４の突曲面
に沿う凹曲面とされている。なお、外輪爪部１４は、外
輪１２の端部の全周にわたって形成しても良い。内輪１
１および外輪１２は、鋼板のプレス加工品とされてい
る。この軸受は、保持器は用いられておらず、いわゆる
総ころ軸受とされている。FIG. 3 shows a third embodiment of the present invention. The inner and outer ring integrated radial roller bearings of this embodiment are
A plurality of rollers 13 are interposed between the raceways 11a, 12a of the inner ring 11 and the outer ring 12. An outer flange 11b is formed at one end of the inner ring 11 in the axial direction, and an inward flange 12b is formed at an end of the outer ring 12 opposite to the inner ring flange 11b. At a plurality of positions in the circumferential direction at the end portion of the outer ring 12 on the side opposite to the flange 12b, claw portions 14 that engage with the tip of the flange 11b of the inner ring 11 that faces the end portion in the radial direction are formed. The claw portion 14 engages with the flange 11b from the outside of the bearing, and by this engagement, the inner ring 11 and the outer ring 12 are integrated in a non-separable manner. The claw portion 14 is formed by plastically deforming a part of the end portion of the outer ring 12 in the circumferential direction so as to project to the inner diameter side. The claw portion 14 has a shape in which the outside of the bearing gradually protrudes higher. Further, the claw portion 14 has a shape protruding in an arc shape when viewed from the front side. Inner ring 1
The front end of the outward flange 11b of No. 1 is an inclined surface on which the inside of the bearing projects so that the outer ring claw portion 14 can be engaged in the radial direction. In detail, the tip end surface is a concave curved surface along the protruding curved surface of the outer ring claw portion 14. The outer ring claw portion 14 may be formed over the entire circumference of the end portion of the outer ring 12. Inner ring 1
The outer ring 1 and the outer ring 12 are formed by pressing a steel plate. This bearing does not use a cage, but is a so-called full roller bearing.
【００２２】この軸受の組立は、次のように行われる。
外輪１２の軌道面１２ａにころ１３を配置した後、外輪
１２の爪部１４の弾性変形を利用して、内輪１１を押し
込む。これにより、爪部１４が内輪の鍔１１ｂの先端に
係合する状態となり、内輪１１と外輪１２とが一体化さ
れる。The assembly of this bearing is performed as follows.
After the rollers 13 are arranged on the raceway surface 12a of the outer ring 12, the inner ring 11 is pushed in by utilizing the elastic deformation of the claw portions 14 of the outer ring 12. As a result, the claw portion 14 is brought into a state of engaging with the tip of the collar 11b of the inner ring, and the inner ring 11 and the outer ring 12 are integrated.
【００２３】この構成の軸受の場合も、内輪１１と外輪
１２とが非分離となるため、搬送・取扱い・組立性が向
上する。内輪１１の鍔１１ｂの先端に、外輪１２の爪部
１４を係合させることにより、内外輪１１，１２を非分
離とするため、従来例のように非分離とするための縁曲
げ部を鍔に重ねて形成する必要がなく、縁曲げの板厚分
だけ軸受幅を小さくすることができる。縁曲げが不要な
ため、焼きなましが不要となり、軌道面１１ａ，１２ａ
の硬度低下が回避できる。縁曲げ工程がないことによ
り、コストが削減される。また、内外輪１１，１２とこ
ろ１３の３点で構成できるので、部品点数が少なく、こ
の点でもコスト低減が可能となる。Also in the case of the bearing having this structure, since the inner ring 11 and the outer ring 12 are not separated from each other, the carrying, handling and assembling properties are improved. By engaging the claw portion 14 of the outer ring 12 with the tip of the collar 11b of the inner ring 11, the inner and outer rings 11, 12 are not separated, and therefore, the edge bending portion for making them unseparated as in the conventional example. The bearing width can be reduced by the plate thickness of the edging without the necessity of overlapping and forming. Since no edging is required, there is no need for annealing, and raceway surfaces 11a, 12a
The decrease in hardness can be avoided. The cost is reduced due to the lack of an edge bending step. Further, since the inner and outer rings 11, 12 and 13 can be constituted by three points, the number of parts is small and the cost can be reduced in this respect as well.
【００２４】図４は、この発明の第４の実施形態を示
す。この実施形態は、図３と共に説明した第３の実施形
態のラジアルころ軸受において、外輪１２に爪部１４を
形成した構成に代えて、内輪１１に爪部１５を設けたも
のである。すなわち、内輪１１の外向き鍔１１ｂとは反
対側の端部の円周方向の複数箇所に爪部１５を形成し、
この爪部１５と径方向に対向する外輪１２の内向き鍔１
２ｂの先端に、爪部１５を軸受外側から係合させてい
る。この係合により、内輪１１と外輪１２を非分離に一
体化している。その他の構成効果は第３の実施形態と同
じである。FIG. 4 shows a fourth embodiment of the present invention. In this embodiment, in the radial roller bearing of the third embodiment described with reference to FIG. 3, the inner ring 11 is provided with a claw portion 15 instead of the structure in which the outer ring 12 is provided with the claw portion 14. That is, the claw portions 15 are formed at a plurality of positions in the circumferential direction of the end portion of the inner ring 11 on the side opposite to the outward flange 11b,
The inward flange 1 of the outer ring 12 that faces the claw portion 15 in the radial direction.
The claw portion 15 is engaged with the tip of 2b from the outside of the bearing. By this engagement, the inner ring 11 and the outer ring 12 are integrated in a non-separable manner. Other configuration effects are the same as those in the third embodiment.
【００２５】なお、第３の実施形態および第４の実施形
態は、いずれも軸方向の一端部に爪部１４，１５を形成
したが、これに限らず第３の実施形態の構成と第４の実
施形態の構成を併用しても良い。すなわち、軸受の軸方
向の一端部では、内輪１１の外向き鍔１１ｂに外輪１２
の爪部１４を係合させ、他端部では、外輪１２の内向き
鍔１２ｂに内輪１１の爪部１５を係合させるようにし
て、内輪１１と外輪１２とを一体化するようにしても良
い。In each of the third and fourth embodiments, the claw portions 14 and 15 are formed at one end portion in the axial direction, but the present invention is not limited to this, and the configuration of the third embodiment and the fourth embodiment. You may use together the structure of embodiment. That is, at the one end portion of the bearing in the axial direction, the outer ring 12 is attached to the outward flange 11b of the inner ring 11.
The inner ring 11 and the outer ring 12 are integrated with each other by engaging the claw portion 14 of the inner ring 11 with the inward flange 12b of the outer ring 12 at the other end. good.
【００２６】[0026]
【発明の効果】この発明における第１の発明の内外輪一
体型ラジアルころ軸受は、保持器が内輪と外輪とに係合
することにより、内輪と外輪とが非分離となるようにし
たため、内外輪を非分離としながら、軸受幅を小さくで
き、かつ非分離化のために軌道面の硬度低下等の不利益
を伴わないものとできる。この発明における第２の発明
の内外輪一体型ラジアルころ軸受は、内輪および外輪の
互いに軸方向の反対側の端部に鍔を有し、内輪および外
輪のいずれか片方または両方における上記鍔を設けた端
部と反対側の端部に、この端部と対向する鍔の先端に軸
受外側から係合する爪部を有するものであるため、内外
輪を非分離としながら、軸受幅を小さくでき、かつ非分
離化のために軌道面の硬度低下等の不利益を伴わないも
のとできる。また、保持器が省略できて部品点数が少な
く、そのためコストダウンを図ることができる。In the radial roller bearing with integrated inner and outer rings according to the first aspect of the present invention, the inner ring and the outer ring are not separated because the cage engages with the inner ring and the outer ring. It is possible to reduce the bearing width while making the rings non-separable, and to avoid the disadvantages such as the decrease in hardness of the raceway surface due to the non-separation. The inner and outer ring integrated radial roller bearing according to the second aspect of the present invention has a flange at the ends of the inner ring and the outer ring that are opposite to each other in the axial direction, and the above-mentioned flange is provided on one or both of the inner ring and the outer ring. Since the end opposite to the end has a claw that engages from the outside of the bearing at the tip of the collar facing the end, the bearing width can be reduced while the inner and outer rings are not separated. In addition, because of the non-separation, it is possible to avoid a disadvantage such as a decrease in hardness of the raceway surface. Further, the cage can be omitted and the number of parts is small, so that the cost can be reduced.
【図１】（Ａ），（Ｂ）はそれぞれこの発明の第１の実
施形態にかかる内外輪一体型ラジアルころ軸受の断面図
および上半部を破断した正面図である。1A and 1B are a cross-sectional view and a front view with an upper half portion cut away, respectively, of an inner and outer ring integrated radial roller bearing according to a first embodiment of the present invention.
【図２】この発明の第２の実施形態にかかる内外輪一体
型ラジアルころ軸受の断面図である。FIG. 2 is a sectional view of an inner and outer ring integrated radial roller bearing according to a second embodiment of the present invention.
【図３】（Ａ），（Ｂ）はそれぞれこの発明の第３の実
施形態にかかる内外輪一体型ラジアルころ軸受の断面図
および一部を破断した部分正面図である。3 (A) and 3 (B) are a sectional view and a partially cutaway front view of an inner and outer ring integrated radial roller bearing according to a third embodiment of the present invention, respectively.
【図４】（Ａ），（Ｂ）はそれぞれこの発明の第４の実
施形態にかかる内外輪一体型ラジアルころ軸受の断面図
および一部を破断した部分正面図である。4A and 4B are a sectional view and a partially cutaway front view of an inner and outer ring integrated radial roller bearing according to a fourth embodiment of the present invention, respectively.
【図５】従来例の断面図である。FIG. 5 is a cross-sectional view of a conventional example.
１…内輪 １ｂ…鍔 ２…外輪 ２ｂ…鍔 ３…ころ ４…保持器 ５Ａ，５Ｂ…係合部 １１…内輪 １１ｂ…鍔 １２…外輪 １２ｂ…鍔 １４，１５…爪部 1 ... Inner ring 1b ... Tsuba 2 ... Outer ring 2b ... Tsuba 3 ... 4 ... Cage 5A, 5B ... Engaging portion 11 ... Inner ring 11b ... Tsuba 12 ... Outer ring 12b ... Tsuba 14, 15 ... Claw
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西村 雅 静岡県磐田市東貝塚1578番地 エヌティエ ヌ株式会社内 (72)発明者 大石 貴行 静岡県磐田市東貝塚1578番地 エヌティエ ヌ株式会社内 Ｆターム(参考） 3J101 AA13 AA32 BA34 BA50 BA57 BA63 EA02 EA31 FA04 FA53 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Masaru Nishimura Entier, 1578 Higashi-Kaizuka, Iwata City, Shizuoka Prefecture Nu Co., Ltd. (72) Inventor Takayuki Oishi Entier, 1578 Higashi-Kaizuka, Iwata City, Shizuoka Prefecture Nu Co., Ltd. F term (reference) 3J101 AA13 AA32 BA34 BA50 BA57 BA63 EA02 EA31 FA04 FA53
Claims (6)
より、内輪と外輪とが非分離となった内外輪一体型ラジ
アルころ軸受。1. An inner / outer ring integrated radial roller bearing in which an inner ring and an outer ring are not separated by a retainer engaging an inner ring and an outer ring.
の端部に鍔を有し、上記内輪と外輪の間に介在した複数
のころを保持する保持器を有し、この保持器は、内輪お
よび外輪の鍔の先端がそれぞれ保持器に軸方向に対して
係合する係合部を両側縁に有するものとした内外輪一体
型ラジアルころ軸受。2. An inner ring and an outer ring each having a flange at opposite axial ends thereof, and a cage for holding a plurality of rollers interposed between the inner ring and the outer ring, the cage comprising: An inner and outer ring integrated radial roller bearing in which the tips of the flanges of the inner ring and the outer ring respectively have engaging portions on both side edges for engaging the retainer in the axial direction.
あって、これら内外輪の鍔は、先端がころ側へ傾くよう
に傾斜したものである請求項２に記載の内外輪一体型ラ
ジアルころ軸受。3. The inner and outer ring integrated radial roller according to claim 2, wherein the inner ring and the outer ring are press-formed products of steel plates, and the flanges of the inner and outer rings are inclined so that the tips are inclined toward the rollers. bearing.
合部が、円周溝である請求項２または請求項３に記載の
内外輪一体型ラジアルころ軸受。4. The inner and outer ring integrated radial roller bearing according to claim 2 or 3, wherein the cage is made of synthetic resin, and the engaging portion is a circumferential groove.
の端部に鍔を有し、内輪および外輪のいずれか片方また
は両方における上記鍔を設けた端部と反対側の端部に、
この端部と対向する鍔の先端に軸受外側から係合する爪
部を有する内外輪一体型ラジアルころ軸受。5. An inner ring and an outer ring each have a flange at opposite ends in the axial direction, and one or both of the inner ring and the outer ring have an end opposite to the end provided with the flange.
An inner-outer ring integrated radial roller bearing having a claw portion that engages from the outside of the bearing at the tip of the flange facing this end portion.
受内側が突出する傾斜面とした請求項５に記載の内外輪
一体型ラジアルころ軸受。6. The inner and outer ring integrated radial roller bearing according to claim 5, wherein a tip end surface of the brim for engaging the claw portion is an inclined surface on which the inner side of the bearing projects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002005663A JP2003206924A (en) | 2002-01-15 | 2002-01-15 | Inner and outer ring integral type radial roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002005663A JP2003206924A (en) | 2002-01-15 | 2002-01-15 | Inner and outer ring integral type radial roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003206924A true JP2003206924A (en) | 2003-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002005663A Pending JP2003206924A (en) | 2002-01-15 | 2002-01-15 | Inner and outer ring integral type radial roller bearing |
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| Country | Link |
|---|---|
| JP (1) | JP2003206924A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006051332A1 (en) * | 2004-11-12 | 2006-05-18 | Hewland Engineering Limited | Radial cylindrical roller bearing with one flange on each race |
| EP2202417A1 (en) | 2008-12-25 | 2010-06-30 | JTEKT Corporation | Roller bearing |
| WO2014181376A1 (en) * | 2013-05-08 | 2014-11-13 | 株式会社ハーモニック・ドライブ・システムズ | Wave generator of strain wave gear device |
| DE102013221470A1 (en) * | 2013-10-23 | 2015-04-23 | Schaeffler Technologies AG & Co. KG | roller sleeve |
-
2002
- 2002-01-15 JP JP2002005663A patent/JP2003206924A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006051332A1 (en) * | 2004-11-12 | 2006-05-18 | Hewland Engineering Limited | Radial cylindrical roller bearing with one flange on each race |
| EP2202417A1 (en) | 2008-12-25 | 2010-06-30 | JTEKT Corporation | Roller bearing |
| WO2014181376A1 (en) * | 2013-05-08 | 2014-11-13 | 株式会社ハーモニック・ドライブ・システムズ | Wave generator of strain wave gear device |
| CN104321558A (en) * | 2013-05-08 | 2015-01-28 | 谐波传动***有限公司 | Wave generator of strain wave gear device |
| JP5839522B2 (en) * | 2013-05-08 | 2016-01-06 | 株式会社ハーモニック・ドライブ・システムズ | Wave generator of wave gear device |
| US9377096B2 (en) | 2013-05-08 | 2016-06-28 | Harmonic Drive Systems Inc. | Wave generator of strain wave gearing |
| DE102013221470A1 (en) * | 2013-10-23 | 2015-04-23 | Schaeffler Technologies AG & Co. KG | roller sleeve |
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