JPH0645695Y2 - Thrust roller bearing - Google Patents
Thrust roller bearingInfo
- Publication number
- JPH0645695Y2 JPH0645695Y2 JP1989106860U JP10686089U JPH0645695Y2 JP H0645695 Y2 JPH0645695 Y2 JP H0645695Y2 JP 1989106860 U JP1989106860 U JP 1989106860U JP 10686089 U JP10686089 U JP 10686089U JP H0645695 Y2 JPH0645695 Y2 JP H0645695Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical portion
- race
- ring
- cylindrical
- roller 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.)
- Expired - Fee Related
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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/761—Sealings of ball or roller bearings specifically for bearings with purely axial load
-
- 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
- F16C19/30—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 axial load mainly
-
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7809—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for needle roller bearings
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は、断面ほぼＬ字形のレースに保持器で保持した
ころが介装され、前記レースの外径側に密封部材が装着
されたスラストころ軸受に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a thrust in which a roller held by a cage is interposed in a race having a substantially L-shaped cross section, and a sealing member is attached to the outer diameter side of the race. Regarding roller bearings.
〈従来の技術〉 従来から、例えば自動車のサスペンションなどに用いる
スラストころ軸受、例えば第１及び第２の断面Ｌ形レー
ス間に保持器により保持されたころが介装されたスラス
トころ軸受には、泥水などの侵入を阻止するために、第
１レースの外径側の軸方向に延びる円筒部に対してゴム
などの弾性シール体を圧入外嵌し、この弾性シール体に
備えたリップを、第２レースの支持部材に対して弾接さ
せるようにしている（例えば実公昭64-2975号公報参
照）。<Prior Art> Conventionally, for example, a thrust roller bearing used for an automobile suspension or the like, for example, a thrust roller bearing in which a roller held by a cage is interposed between first and second L-shaped races, In order to prevent the intrusion of muddy water, an elastic seal body such as rubber is press-fitted onto the cylindrical portion of the first race that extends in the axial direction on the outer diameter side, and the lip provided on the elastic seal body is It is made to elastically contact the support member of the two races (for example, see Japanese Utility Model Publication No. 64-2975).
〈考案が解決しようとする課題〉 しかし、上記従来構造では、弾性シール体を第１レース
に対して圧入外嵌するものの、弾性シール体のリップと
それを弾接させる第２レースの支持部材とのしめしろは
大きくして使用されるので、弾性シール体が第２レース
の支持部材と共回りして弾性シール体と第１レースとが
相対滑りを起こし、シール機能を果たさなくなるという
問題が生じやすい。<Problems to be Solved by the Invention> However, in the above-described conventional structure, although the elastic seal body is press-fitted onto the first race, the lip of the elastic seal body and the support member of the second race for elastically contacting the lip are formed. Since the interference amount is increased, the elastic seal body rotates together with the support member of the second race, causing a relative slip between the elastic seal body and the first race, thereby causing a problem that the sealing function is not fulfilled. Cheap.
そこで、弾性シール体を第１レースに対して焼付けるこ
とで前記相対滑りを防ぐことも考えられるが、焼付けの
際に、当該弾性シール体が第１レースの不必要な部分に
まで流れて軸受機能を阻害することがあり、また、一度
焼付けた弾性シール体の取り外しが困難になるという問
題もある。Therefore, it is conceivable to prevent the relative slippage by baking the elastic seal body to the first race, but at the time of baking, the elastic seal body flows to an unnecessary portion of the first race and the bearing is moved. The function may be impaired, and it is difficult to remove the elastic seal body once baked.
また、実公昭64-2975号公報の第１図で従来例として引
用している径方向に延びる鍔部と軸方向に延びる円筒部
とよりなる断面形の芯金リング付きの密封部材は、そ
の芯金リングの円筒部を第１レースの円筒部に対して直
接、圧入外嵌させているが、このようにすると密封部材
と第１レースの円筒部との相対滑りは生じないが、その
かわり次の問題が生じる。一般にスラストころ軸受の両
レースはプレス成形されて熱処理が施される関係上、レ
ースの円筒部には大きな歪みが発生していることが多
く、また、圧入により芯金リングが変形することもある
ので、第１レースの円筒部と芯金リングの円筒部との嵌
合部分に隙間が生じやすく、それによってシール性が不
足することがある。Further, the sealing member with a cored bar ring having a cross-sectional shape consisting of a flange portion extending in the radial direction and a cylindrical portion extending in the axial direction, which is cited as a conventional example in FIG. 1 of Japanese Utility Model Publication No. 64-2975, is The cylindrical portion of the cored bar ring is press-fitted and externally fitted directly to the cylindrical portion of the first race. In this case, relative sliding between the sealing member and the cylindrical portion of the first race does not occur. The following problems arise. Generally, both races of thrust roller bearings are press-molded and heat-treated, so that a large amount of strain is often generated in the cylindrical portion of the race, and the core metal ring may be deformed by press fitting. Therefore, a gap is likely to be formed in the fitting portion between the cylindrical portion of the first race and the cylindrical portion of the cored bar ring, which may result in insufficient sealing performance.
本考案は、このような事情に鑑み、芯金リング付きの密
封部材を改良して、レースに対して不動に取り付けする
とともに、レースの円筒部に対する芯金リングの嵌合部
分でのシール性の向上を図ることを目的としている。In view of such circumstances, the present invention improves a sealing member with a cored bar ring so as to be fixedly attached to a race and to improve sealability at a fitting part of the cored bar ring with respect to a cylindrical part of the race. The purpose is to improve.
〈課題を解決するための手段〉 本考案はこのような目的を達成するために、その外径側
に軸方向に延びる円筒部が形成された断面ほぼＬ字形の
レースに保持器で保持した複数のころが介装され、前記
円筒部に芯金リングとそれに被着されかつ前記円筒部と
対向する軸受支持部材との間でシール部を形成する弾性
シール体とからなる密封部材が装着されたスラストころ
軸受において、 前記密封部材の芯金リングが、前記レースの円筒部に外
嵌される軸方向に延びる円筒部と、この円筒部の一端に
径方向内向きに延出形成された鍔部とを有するととも
に、 前記弾性シール体が、芯金リングの前記円筒部内周面を
覆う部分と、前記軸受支持部材に対して弾接させられる
リップとを有し、 かつ、前記芯金リングの鍔部を前記レースの円筒部の自
由端側に掛止させるよう芯金リングの円筒部が前記レー
スの円筒部に外嵌され、この芯金リングの円筒部の自由
端が、前記レースの円筒部と環状板部との間の屈曲部に
かしめ結合され、前記かしめ結合により、前記芯金リン
グの円筒部の内周面を覆う弾性シール体が前記レースの
円筒部に密着されてなることを特徴とする。<Means for Solving the Problems> In order to achieve such an object, the present invention has a plurality of retainers held by a retainer in a race having a substantially L-shaped cross section in which a cylindrical portion extending in the axial direction is formed on the outer diameter side thereof. A roller is interposed, and a sealing member including a cored bar ring and an elastic seal body that is attached to the cored bar and forms a seal portion between the bearing support member facing the cylindrical part is attached to the cylindrical part. In a thrust roller bearing, a cored bar ring of the sealing member has an axially extending cylindrical portion that is externally fitted to the cylindrical portion of the race, and a flange portion that is formed at one end of the cylindrical portion so as to extend radially inward. And the elastic seal body has a portion that covers the inner peripheral surface of the cylindrical portion of the cored bar ring, and a lip that is elastically contacted with the bearing support member, and the collar of the cored bar ring. The free end of the cylindrical part of the lace The cylindrical portion of the mandrel ring is externally fitted to the cylindrical portion of the race so as to be hooked to the side, and the free end of the cylindrical portion of the mandrel ring is a bent portion between the cylindrical portion of the race and the annular plate portion. The elastic seal body covering the inner peripheral surface of the cylindrical portion of the cored bar ring is closely attached to the cylindrical portion of the race by caulking.
また、前記芯金リングの鍔部の内径が、保持器の外径よ
り小さな寸法に設定されていることを特徴とする。Further, the inner diameter of the flange portion of the cored bar ring is set to be smaller than the outer diameter of the cage.
〈作用〉 上記構成によると、芯金リングの円筒部とレースの円筒
部とを嵌合が容易なように正の隙間を持たせた状態で外
嵌しても、芯金リングの円筒部の自由端をレースに対し
てかしめ結合により、両者の嵌合隙間は芯金リングの円
筒部内周面を覆う弾性シール体の一部で塞がれ、シール
性が高められるとともに、両者の相対滑りが阻止され
る。<Operation> According to the above configuration, even if the cylindrical portion of the core metal ring and the cylindrical portion of the race are externally fitted with a positive gap provided for easy fitting, By crimping the free end to the race, the fitting gap between the two is closed by a part of the elastic seal that covers the inner peripheral surface of the cylindrical portion of the cored bar, improving the sealing performance and the relative slippage between the two. Be blocked.
ところで、前記レースに対してころおよび保持器を非分
離とするために、通常、レースの円筒部の自由端に保持
器が軸方向で引っ掛かるような掛止片を設けるが、本考
案のように芯金リングの鍔部に保持器が軸方向で引っ掛
かるようにすることによって保持器を前記レースに対し
て非分離としていれば、わざわざ、前記レースの円筒部
に掛止片を設けずに済み、その加工が不要となる。By the way, in order to make the roller and the retainer non-separated from the race, a latching piece for catching the retainer in the axial direction is usually provided at the free end of the cylindrical portion of the race. If the retainer is non-separable from the race by allowing the retainer to be hooked in the collar portion of the core metal ring in the axial direction, it is not necessary to purposely provide a hooking piece on the cylindrical portion of the race. The processing becomes unnecessary.
〈実施例〉 以下、本考案の実施例を図面に基づいて詳細に説明す
る。<Embodiment> An embodiment of the present invention will be described below in detail with reference to the drawings.
第１図および第２図に本考案の一実施例を示している。
図示するスラストころ軸受は、径方向に延びる環状板部
12と該環状板部12の一端から軸方向に延びる円筒部11と
からなる断面ほぼＬ字形に形成された第１のレース10、
同様に径方向に延びる環状板部13と該環状板部13の一端
から軸方向に延びる円筒部21からなる断面ほぼＬ字形に
形成された第２のレース20と、二枚の環状板31,32が掌
合結合されてなる保持器30と、保持器30に回動自在に保
持された複数のころ40とを備えている。前記一対のレー
ス10,20は、第１のレース10の円筒部11を外径側に第２
のレース20の円筒部21を内径側に位置させて対向させる
ことにより保持器30及びころ40を囲むように組み合わさ
れている。また保持器30を構成する二枚の環状板31,32
のうち、第１のレース10側の環状板32は内径側に軸方向
に延びる円筒部32aが形成され、第２のレース20側の環
状板31は内，外径側に軸方向に延びる円筒部31a,31bが
形成されかつ外径側の円筒部31bの自由端には径方向外
方に延びるフランジ31cが形成されている。この一方の
環状板32の内径側円筒部32aの外径面に他方の環状板31
の内径側円筒部31aを嵌合させるとともに、一方の環状
板32の外径側に他方の環状板31の外径側のフランジ31c
を沿わせ、他方の環状板31の内径側円筒部31aの自由端
を一方の環状板32側にかしめることにより両環状板31,3
2が一体化され、箱形の保持器30が形成される。このス
ラストころ軸受の外径側に位置する第１レース10の円筒
部11に対して矢印方向から密封部材50が装着される。1 and 2 show an embodiment of the present invention.
The illustrated thrust roller bearing has an annular plate portion that extends in the radial direction.
A first race 10 having a substantially L-shaped cross section, comprising a cylindrical portion 11 extending from one end of the annular plate portion 12 in the axial direction,
Similarly, an annular plate portion 13 extending in the radial direction and a second race 20 having a substantially L-shaped cross section, which is formed of a cylindrical portion 21 extending axially from one end of the annular plate portion 13, and two annular plates 31, A retainer 30 in which 32 is palm-joined and a plurality of rollers 40 rotatably retained by the retainer 30 are provided. The pair of races 10 and 20 are arranged such that the cylindrical portion 11 of the first race 10 is moved to the outer diameter side to the second side.
The cylindrical portion 21 of the race 20 is positioned on the inner diameter side and opposed to each other, so that the cage 30 and the rollers 40 are combined so as to surround the cage. In addition, the two annular plates 31, 32 that make up the cage 30
Among them, the annular plate 32 on the first race 10 side is formed with a cylindrical portion 32a extending axially on the inner diameter side, and the annular plate 31 on the second race 20 side is a cylinder extending axially on the inner and outer diameter sides. Portions 31a and 31b are formed, and a flange 31c extending radially outward is formed at the free end of the cylindrical portion 31b on the outer diameter side. The other annular plate 31 is provided on the outer diameter surface of the inner diameter side cylindrical portion 32a of the one annular plate 32.
While fitting the inner diameter side cylindrical portion 31a, the outer diameter side flange 31c of one annular plate 32 to the outer diameter side of the other annular plate 31
And the free ends of the inner diameter side cylindrical portions 31a of the other annular plate 31 are caulked to the side of the one annular plate 32, thereby forming both annular plates 31,3.
The two are integrated to form a box-shaped cage 30. The sealing member 50 is attached to the cylindrical portion 11 of the first race 10 located on the outer diameter side of the thrust roller bearing in the direction of the arrow.
この密封部材50は、断面がほぼＬ字形の芯金リング51
と、この芯金リングのほぼ全周を覆うように被着された
ゴムなどの弾性シール体52とからなる。芯金リング51
は、軸方向に延びる円筒部53と、円筒部53の一端におい
て径方向内向きに延出形成された内向き鍔部54とを有す
る。弾性体52は、芯金リング51の円筒部53と内向き鍔部
54との間の屈曲部に位置して径方向外方へ向けて斜めに
突出するリップ55を有しており、このリップ55が第２レ
ース20の支持部材60に対して弾接させられるようにな
る。また、円筒部53の自由端56は薄肉に形成されてお
り、芯金リング51の内向き鍔部54の内径が保持器30の外
径よりも小さな寸法に設定されている。The sealing member 50 includes a cored bar ring 51 having a substantially L-shaped cross section.
And an elastic seal body 52 made of rubber or the like attached so as to cover almost the entire circumference of the cored bar ring. Core bar ring 51
Has a cylindrical portion 53 extending in the axial direction and an inward flange portion 54 formed to extend radially inward at one end of the cylindrical portion 53. The elastic body 52 includes the cylindrical portion 53 of the core bar ring 51 and the inward flange portion.
It has a lip 55 which is located at a bent portion between the first race 54 and the second race 20 and obliquely protrudes radially outward so that the lip 55 is elastically contacted with the support member 60 of the second race 20. become. The free end 56 of the cylindrical portion 53 is formed thin, and the inner diameter of the inward flange 54 of the cored bar ring 51 is set to be smaller than the outer diameter of the cage 30.
次に、密封部材50をスラストころ軸受に対して装着する
手順を説明する。Next, a procedure for mounting the sealing member 50 on the thrust roller bearing will be described.
スラストころ軸受の第１レース10の円筒部11の自由端11
a側へ、第１図の矢印方向から密封部材50を装着する。
この場合、密封部材50の芯金リング51の円筒部53の内径
を、第１レース10の円筒部11の外径よりも僅かに大きく
しておき、芯金リング51の円筒部53の内周面に弾性シー
ル体52を設けていても、レース10の円筒部11に対して芯
金リング51を嵌合し易くできるようにしている。Free end 11 of cylindrical portion 11 of first race 10 of thrust roller bearing
The sealing member 50 is attached to the a side from the direction of the arrow in FIG.
In this case, the inner diameter of the cylindrical portion 53 of the core metal ring 51 of the sealing member 50 is made slightly larger than the outer diameter of the cylindrical portion 11 of the first race 10, and the inner circumference of the cylindrical portion 53 of the core metal ring 51 is set. Even if the elastic seal body 52 is provided on the surface, the core metal ring 51 can be easily fitted to the cylindrical portion 11 of the race 10.
こうして、第１レース10の円筒部11に対して密封部材50
を仮装着した後、芯金リング51の薄肉部56を、第１レー
ス10において円筒部11と環状板部12との間の屈曲部Ｃに
対して全周をロールかしめ，またはプレスかしめなどに
よってかしめ結合させる。Thus, the sealing member 50 is attached to the cylindrical portion 11 of the first race 10.
After the temporary mounting, the thin-walled portion 56 of the cored bar ring 51 is roll-rolled or press-rolled over the entire circumference with respect to the bent portion C between the cylindrical portion 11 and the annular plate portion 12 in the first race 10. Make a caulking connection.
このように取り付けた状態において、第１レース10の円
筒部11と芯金リング51の円筒部53との間には僅かな正の
隙間が生じているものの、この隙間は芯金リング51の第
１レース10に対するかしめによって第１レース10の円筒
部11に芯金リング51の円筒部53の内周面を覆う弾性シー
ル体52の一部が押し付けられて隙間がなくなり、両者の
嵌合部分のシール性が高く保持される。In this mounted state, although there is a slight positive gap between the cylindrical portion 11 of the first race 10 and the cylindrical portion 53 of the cored bar ring 51, this gap is the first gap of the cored bar ring 51. By caulking the first race 10, a part of the elastic seal body 52 that covers the inner peripheral surface of the cylindrical portion 53 of the cored bar ring 51 is pressed against the cylindrical portion 11 of the first race 10 so that a gap disappears and the fitting portion of both High sealing performance is maintained.
また、芯金リング51の内向き鍔部54の端部内径は、保持
器30の外径側のフランジ31cが軸方向で引っ掛かるよう
に保持器30の外径より小さく設定してあり、第１レース
10に対して保持器30およびころ40が非分離となる。な
お、第２レース20については、その円筒部21の自由端の
円周数箇所に設けてある径方向外向きの突片22を保持器
30の内径側に軸方向で引っ掛かるようにさせているの
で、この第２レース20に対しても保持器30ところ40が非
分離となる。つまり、本実施例でのスラストころ軸受
は、各構成部品が完全非分離になっている。Further, the inner diameter of the end portion of the inward flange 54 of the core metal ring 51 is set smaller than the outer diameter of the retainer 30 so that the flange 31c on the outer diameter side of the retainer 30 is hooked in the axial direction. race
The cage 30 and the roller 40 are not separated from the cage 10. Regarding the second race 20, the radially outwardly projecting pieces 22 provided at several circumferential positions at the free end of the cylindrical portion 21 of the retainer.
Since it is adapted to be hooked in the inner diameter side of 30 in the axial direction, the retainer 30 and the retainer 40 are not separated from the second race 20. That is, in the thrust roller bearing according to this embodiment, each component is completely inseparable.
ところで、仮に、寸法公差により芯金リング51と第１レ
ース10の円筒部11との嵌合しろが過大な正の隙間になっ
ても、かしめ結合時、この芯金リング51の円筒部53に被
覆してある弾性シール体52の一部が変位して前記隙間を
塞ぐことになる。このように、本実施例では、精度があ
まり良くない部品を用いることができるようになってい
る。なお、実施例では、第２レース20を配置してこのレ
ース20上をころ40が転動するようにしているが、必要に
より第２レース20を省き、支持部材60上をころ40が直接
転動させるようにしてもよい。By the way, even if the fitting allowance between the core metal ring 51 and the cylindrical portion 11 of the first race 10 becomes excessively large due to dimensional tolerances, the caulking connection causes the cylindrical portion 53 of the core metal ring 51 to have a large gap. A part of the covered elastic seal body 52 is displaced to close the gap. As described above, in the present embodiment, it is possible to use a component whose accuracy is not so good. In the embodiment, the second race 20 is arranged so that the roller 40 rolls on the race 20. However, if necessary, the second race 20 is omitted and the roller 40 rolls directly on the support member 60. You may make it move.
〈考案の効果〉 以上説明したように、本考案によれば、芯金リングの円
筒部と第１レースの円筒部とを正の隙間により嵌合が容
易になる構成としても、芯金リングと第１レースとの相
対滑りを防ぎながら、芯金リング円筒部の自由端のレー
スの屈曲部へのかしめ結合によって得られる弾性シール
体のレースの円筒部への密着構造により、両者の嵌合部
分のシール性を高くすることができる。<Effect of the Invention> As described above, according to the present invention, even if the cylindrical portion of the core metal ring and the cylindrical portion of the first race are easily fitted by the positive gap, While preventing relative slippage with the first race, the elastic seal body obtained by caulking and coupling the free end of the cored bar cylindrical portion to the curved portion of the race has a close contact structure with the cylindrical portion of the race. The sealing property of can be improved.
しかも、密封部材によって保持器およびころを第１レー
スに対して非分離にさせることができるので、従来のよ
うにレースに非分離用掛止片をわざわざ設ける必要がな
く、スラストころ軸受の製作コストの低減に貢献できる
ようになる。Moreover, since the retainer and the roller can be made non-separable from the first race by the sealing member, it is not necessary to purposely provide a non-separating hooking piece on the race as in the conventional case, and the manufacturing cost of the thrust roller bearing can be reduced. Will be able to contribute to the reduction of.
第１図および第２図は本考案の一実施例にかかり、第１
図はスラストころ軸受と密封部材とを分離した状態を示
す縦断正面図、第２図はスラストころ軸受に密封部材を
装着した状態を示す縦断正面図である。 10……第１レース、11……円筒部、 12……環状板部、20……第２レース、 30……保持器、40……ころ、 50……密封部材、51……芯金リング、 52……弾性シール体、53……円筒部、 54……内向き鍔部、55……リップ、 60……第２レースの支持部材。1 and 2 relate to an embodiment of the present invention.
FIG. 2 is a vertical sectional front view showing a state where the thrust roller bearing and the sealing member are separated, and FIG. 2 is a vertical sectional front view showing a state where the sealing member is mounted on the thrust roller bearing. 10 …… First race, 11 …… Cylinder part, 12 …… Annular plate part, 20 …… Second race, 30 …… Cage, 40 …… Roller, 50 …… Sealing member, 51 …… Core bar ring , 52 ...... Elastic seal body, 53 ...... Cylindrical part, 54 ...... Inward collar part, 55 ...... Lip, 60 ...... Second race support member.
Claims (2)
された断面ほぼＬ字形のレースに保持器で保持した複数
のころが介装され、前記円筒部に芯金リングとそれに被
着されかつ前記円筒部と対向する軸受支持部材との間で
シール部を形成する弾性シール体とからなる密封部材が
装着されたスラストころ軸受において、 前記密封部材の芯金リングが、前記レースの円筒部に外
嵌される軸方向に延びる円筒部と、この円筒部の一端に
径方向内向きに延出形成された鍔部とを有するととも
に、 前記弾性シール体が、芯金リングの前記円筒部内周面を
覆う部分と、前記軸受支持部材に対して弾接させられる
リップとを有し、 かつ、前記芯金リングの鍔部を前記レースの円筒部の自
由端側に掛止させるよう芯金リングの円筒部が前記レー
スの円筒部に外嵌され、この芯金リングの円筒部の自由
端が、前記レースの円筒部と環状板部との間の屈曲部に
かしめ結合され、 前記かしめ結合により、前記芯金リングの円筒部の内周
面を覆う弾性シール体が前記レースの円筒部に密着され
てなることを特徴とするスラストころ軸受。1. A plurality of rollers held by a retainer are interposed in a race having a substantially L-shaped cross section in which a cylindrical portion extending in the axial direction is formed on the outer diameter side thereof, and the cylindrical portion is covered with a cored bar ring and In a thrust roller bearing equipped with a sealing member, which is attached and comprises an elastic seal body that forms a seal portion between the cylindrical portion and a bearing supporting member facing the cylindrical portion, the core metal ring of the sealing member is While having an axially extending cylindrical portion that is fitted onto the cylindrical portion and a flange portion that is formed to extend radially inward at one end of the cylindrical portion, the elastic seal body is the cylinder of the cored bar ring. And a lip that is elastically contacted with the bearing support member, and a core that locks the flange portion of the core metal ring on the free end side of the cylindrical portion of the race. The cylindrical part of the gold ring is the cylindrical part of the race It is externally fitted, and the free end of the cylindrical portion of the core metal ring is caulked to the bent portion between the cylindrical portion of the race and the annular plate portion. A thrust roller bearing, characterized in that an elastic seal body covering the peripheral surface is in close contact with the cylindrical portion of the race.
より小さな寸法に設定されていることを特徴とする請求
項第１項に記載のスラストころ軸受。2. The thrust roller bearing according to claim 1, wherein an inner diameter of the flange portion of the core metal ring is set to be smaller than an outer diameter of the cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989106860U JPH0645695Y2 (en) | 1989-09-12 | 1989-09-12 | Thrust roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989106860U JPH0645695Y2 (en) | 1989-09-12 | 1989-09-12 | Thrust roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0346020U JPH0346020U (en) | 1991-04-26 |
| JPH0645695Y2 true JPH0645695Y2 (en) | 1994-11-24 |
Family
ID=31655580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989106860U Expired - Fee Related JPH0645695Y2 (en) | 1989-09-12 | 1989-09-12 | Thrust roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645695Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5556105Y2 (en) * | 1975-07-19 | 1980-12-26 | ||
| JPH0247295Y2 (en) * | 1986-05-15 | 1990-12-12 | ||
| JPH0645032Y2 (en) * | 1987-06-24 | 1994-11-16 | 株式会社城南製作所 | Wire type window regulator carrier plate |
-
1989
- 1989-09-12 JP JP1989106860U patent/JPH0645695Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0346020U (en) | 1991-04-26 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |