JPH0121213Y2 - - Google Patents

Info

Publication number
JPH0121213Y2
JPH0121213Y2 JP1984107820U JP10782084U JPH0121213Y2 JP H0121213 Y2 JPH0121213 Y2 JP H0121213Y2 JP 1984107820 U JP1984107820 U JP 1984107820U JP 10782084 U JP10782084 U JP 10782084U JP H0121213 Y2 JPH0121213 Y2 JP H0121213Y2
Authority
JP
Japan
Prior art keywords
separator
raceway
bearing
seal
fitted
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
Application number
JP1984107820U
Other languages
Japanese (ja)
Other versions
JPS6122926U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1984107820U priority Critical patent/JPS6122926U/en
Publication of JPS6122926U publication Critical patent/JPS6122926U/en
Application granted granted Critical
Publication of JPH0121213Y2 publication Critical patent/JPH0121213Y2/ja
Granted legal-status Critical Current

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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3837—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages
    • F16C33/3843—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • F16C33/3856—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from plastic, e.g. injection moulded 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
    • F16C33/72—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
    • 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
    • F16C33/7893—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a cage or integral therewith
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Description

【考案の詳細な説明】 〔考案の目的〕 「産業上の利用分野」 この考案はスラストボールベアリング、就中自
動車の懸架装置に用いられるスラストボールベア
リングに関する。[Detailed description of the invention] [Purpose of the invention] "Field of industrial application" This invention relates to thrust ball bearings, particularly thrust ball bearings used in suspension systems of automobiles.

「従来の技術」 第４図は従来例のシール機能を備えたスラスト
ボールベアリングの縦断面図である。軌道輪１，
２にセパレータ３０にて間隔を保たれボールの転
動体４が接しており、軌道輪１の端面５と外周に
保持したシールプレート６の円筒形外周により軌
道輪１，２の外側を蔽うと共にシールプレート６
の該円筒形外周端を内径側に変形させて取付状態
において軌道輪２の座面外周近くを間隔をおいて
抱くようになつている。"Prior Art" FIG. 4 is a longitudinal sectional view of a conventional thrust ball bearing with a sealing function. Raceway ring 1,
A rolling element 4 of a ball is in contact with the ball 2 with a distance maintained by a separator 30, and the end face 5 of the bearing ring 1 and the cylindrical outer periphery of a seal plate 6 held on the outer periphery cover the outside of the bearing rings 1 and 2 and provide a seal. plate 6
The cylindrical outer circumferential end of the bearing ring 2 is deformed inwardly so that in the installed state, the bearing ring 2 hugs the vicinity of the outer circumference of the seat surface of the bearing ring 2 at a distance.

このようなスラストボールベアリング７を自動
車のマクフアソンストラツト形の懸架装置に用い
た例は第５図に示される。第５図においてボデイ
３９に固定されたアツパーマウント４１に加硫接
着したラバーマウント４２を介してベアリングホ
ルダー４３が一体的に成形して保持されている。
ベアリングホルダ４３にはシヨツクアブソーバロ
ツド４４端が嵌入して該ロツド４４にねじ込まれ
たナツト４５によりシヨツクアブソーバのロツド
４４側に固定されている。ベアリングホルダ４３
に嵌入している第４図のスラストボールベアリン
グ７の軌道輪２の内径にはスプリングシート４６
の円筒形部５２が嵌め込まれ、スプリングシート
４６に懸架装置のコイルばね４７の一端が嵌め込
まれている。コイルばね４７の他端はシヨツクア
ブソーバ本体４８に設けたばね座４９により支持
されている。該シヨツクアブソーバ本体４８部に
はリンクを介してボデイ３９に支持されているナ
ツクルに取付る取付フランジ５１を備える。 An example in which such a thrust ball bearing 7 is used in a McPherson strut type suspension system for an automobile is shown in FIG. In FIG. 5, a bearing holder 43 is integrally molded and held on an upper mount 41 fixed to a body 39 via a rubber mount 42 vulcanized and bonded.
The end of a shock absorber rod 44 is fitted into the bearing holder 43 and fixed to the rod 44 side of the shock absorber by a nut 45 screwed into the rod 44. Bearing holder 43
A spring seat 46 is attached to the inner diameter of the bearing ring 2 of the thrust ball bearing 7 shown in FIG.
A cylindrical portion 52 is fitted into the spring seat 46, and one end of a coil spring 47 of the suspension device is fitted into the spring seat 46. The other end of the coil spring 47 is supported by a spring seat 49 provided on the shock absorber body 48. The shock absorber main body 48 is provided with a mounting flange 51 that is attached to a knuckle supported by the body 39 via a link.

「考案が解決しようとしている問題点」 第４図に示したようなスラストボールベアリン
グ７を第５図のような自動車の懸架装置に用いた
例によれば、タイヤハウス上方に配されているも
のとしてはシールプレート６と軸側の軌道輪２と
の〓間及びスプリングシート４６とシヨツクアブ
ソーバロツド４４間の〓間からダスト等が転動体
４の周辺に侵入することによつて早い時期に回転
不能となる不具合が生じることがある。``Problem that the invention is trying to solve'' According to an example in which the thrust ball bearing 7 shown in Fig. 4 is used in the suspension system of a car as shown in Fig. 5, the thrust ball bearing 7 shown in Fig. 5 is placed above the tire house. This is because dust, etc. enters around the rolling elements 4 from between the seal plate 6 and the bearing ring 2 on the shaft side and between the spring seat 46 and the shock absorber rod 44, causing the rolling elements to rotate at an early stage. Disabling problems may occur.

この考案はシール性能にすぐれたスラストボー
ルベアリングを提供することを目的とする。 The purpose of this invention is to provide a thrust ball bearing with excellent sealing performance.

〔考案の構成〕[Structure of the idea]

「問題点を解決するための手段」 この考案は断面が大略コ字形に形成された円環
状の合成樹脂製上・下ケースには軌道輪がその軌
道面を相対向させて夫々嵌入収容されており、該
軌道輪間にはセパレータ部と該セパレータ部の内
周に先端が軸心側に向つて斜め方向を向き、外周
に先端が半径方向外側へ向つて斜め方向を向いた
尖鋭リップ部を備えたシールセパレータが該尖鋭
リップ部を該軌道輪に摺接させて配されていると
ともに該セパレータ部には球状転動体が該軌道面
に接触して間隔を保持して配されており、該合成
樹脂製上・下ケースは内・外周側に夫々ラビンス
作用をなすシール部を形成して彈性装着されてい
ることを特徴とするスラストボールベアリングで
ある。 ``Means for solving the problem'' This idea is based on an upper and lower annular synthetic resin case with a roughly U-shaped cross section, in which raceway rings are fitted and housed with their raceway surfaces facing each other. Between the raceway rings, there is a separator part and a sharp lip part on the inner periphery of the separator part, the tip of which faces diagonally toward the axis, and the outer periphery of the separator part, the tip of which faces diagonally to the outside in the radial direction. A seal separator provided with the seal separator is disposed with the sharp lip portion slidingly in contact with the raceway ring, and spherical rolling elements are disposed on the separator portion in contact with the raceway surface to maintain a spacing. This is a thrust ball bearing characterized in that the upper and lower cases made of synthetic resin are fitted with seals that act as a ravine on the inner and outer peripheries, respectively.

「作用」 シールセパレータの尖鋭リップ部が両軌道輪と
摺接しているため転動体が密封された空間で運動
し、かつ合成樹脂製上・下ケースの内・外周側に
夫々ラビリンス作用をなすシール部が形成されて
いるので、軌道輪と転動体との接触部は二重にシ
ールされていることになり、当該部位への塵埃等
の侵入は防止される。"Function" Because the sharp lip of the seal separator is in sliding contact with both bearing rings, the rolling elements move in a sealed space, and the seal has a labyrinth effect on the inner and outer periphery of the synthetic resin upper and lower cases, respectively. Since the contact area between the raceway ring and the rolling element is double sealed, dust and the like are prevented from entering the area.

「実施例」 以下、この考案の実施例を図面に従つて説明す
る。第１図は縦断面図である。金属製軌道輪１，
２は断面が大略コ字形に形成された例えばポリア
セタール樹脂、ポリアミド樹脂等の合成樹脂製の
上・下ケース２９，３１にその軌道面を相対向さ
せて夫々嵌入収容されている。通常ケーシング側
に取付けられる外周取付の上ケース２９の外径
D1は通常軸側に嵌入される下ケース３１の外径
２よりわずかに大きく、上ケース２９の外径D1
は該上ケース２９に嵌入収容されている軌道輪１
の軌道面８と正確に同心に作られている。下ケー
ス３１の内径d2は上ケース２９の内径d1よりもわ
ずかに小さく、該下ケース３１に嵌入収容されて
いる軌道輪２の軌道面９と正確に同心に作られて
いる。"Example" Hereinafter, an example of this invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view. Metal bearing ring 1,
2 are fitted into upper and lower cases 29 and 31 made of synthetic resin, such as polyacetal resin or polyamide resin, each having a roughly U-shaped cross section, with their raceway surfaces facing each other. Outer diameter of the upper case 29 that is normally attached to the casing side
D 1 is slightly larger than the outer diameter 2 of the lower case 31 that is normally fitted on the shaft side, and is the outer diameter D 1 of the upper case 29.
is the bearing ring 1 fitted and housed in the upper case 29.
It is made to be exactly concentric with the orbital surface 8 of. The inner diameter d 2 of the lower case 31 is slightly smaller than the inner diameter d 1 of the upper case 29 and is made to be exactly concentric with the raceway surface 9 of the raceway ring 2 fitted and housed in the lower case 31 .

上ケース２９の端面５および下ケース３１の取
付面１１は軸直角の平面をなしており、面１１，
５と該面１１，５につづく内外径との角は面取り
が施されている。 The end surface 5 of the upper case 29 and the mounting surface 11 of the lower case 31 form a plane perpendicular to the axis.
5 and the inner and outer diameters that follow the surfaces 11 and 5 are chamfered.

軌道面８，９は転動体４の球の半径よりもわず
かに大きい半径の内弧形断面をしており、軌道面
８，９につづく両側は軸直角の対向平面１２，１
３，１４，１５で平滑に仕上げられている。転動
体４はシールセパレータ３により保持されてい
る。 The raceway surfaces 8 and 9 have an inner arcuate cross section with a radius slightly larger than the radius of the ball of the rolling element 4, and both sides of the raceway surfaces 8 and 9 are opposite planes 12 and 1 perpendicular to the axis.
3, 14, and 15 have a smooth finish. The rolling elements 4 are held by a seal separator 3.

上・ケース２９，３１は軸中心の円環状であ
り、内径側には上ケース２９と下ケース３１の端
部が対向し、上ケース２９の該端部には円周溝３
２が設けてあり、この円周溝３２に〓間少なく嵌
入する円環状の突条３３が下ケース３１に設けて
ある。そして突条３３の設けられる下ケース３１
の端面３４は上ケース２９の端面３５と〓間少な
く対峙している。上ケース２９の外周側の端部は
下ケース３１の外周側の外側に彈性装着（スナツ
プフイツト）され、対向する円筒形〓間３６，３
７間を円錐形〓間３８として軸受内外を微小〓間
で連通してある。 The upper cases 29 and 31 have an annular shape centered on the shaft, and the ends of the upper case 29 and the lower case 31 face each other on the inner diameter side, and a circumferential groove 3 is formed in the end of the upper case 29.
2 is provided on the lower case 31, and an annular protrusion 33 that fits into the circumferential groove 32 with a short distance is provided on the lower case 31. And the lower case 31 where the protrusion 33 is provided
The end face 34 of the upper case 29 faces the end face 35 of the upper case 29 with a small distance. The outer circumferential end of the upper case 29 is snap-fitted to the outer circumferential side of the lower case 31, and is connected to the opposing cylindrical spaces 36, 3.
7 is a conical gap 38, which communicates the inside and outside of the bearing with a minute gap.

第１図において上・下ケース２９，３１が相対
回転すると、軸受内径側は該上・下ケース２９，
３１の端面３５，３４間の〓間および突条３３、
円周溝３２間の〓間で、軸受外径側は円筒形〓間
３６、円錐形〓間３８、円筒形隙間３７の〓間で
それぞれラビリンス作用によりシールされる。ま
た衝撃的なスラスト荷重が加わつた場合は上・下
ケース２９，３１の緩衝作用により軸受の保護が
計られる。 In FIG. 1, when the upper and lower cases 29 and 31 rotate relative to each other, the bearing inner diameter side
31 between the end surfaces 35 and 34 and the protrusion 33,
In the space between the circumferential grooves 32, the outer diameter side of the bearing is sealed by a labyrinth action between the cylindrical space 36, the conical space 38, and the space between the cylindrical gaps 37, respectively. Furthermore, when an impactful thrust load is applied, the bearing is protected by the buffering action of the upper and lower cases 29 and 31.

第２図はシールセパレータ３の縦断面図であ
る。シールセパレータ３は軌道輪１，２の対向平
面１２，１３および１４，１５間の〓間to（第１
図）よりも若干全厚さt1が大きい。尖鋭リツプ部
１６，１７，１８，１９と一体になつているセパ
レータ部２１の厚さt2は前記〓間toより若干小さ
い軸中心の平な円環状をなしている。 FIG. 2 is a longitudinal sectional view of the seal separator 3. The seal separator 3 is located between the opposing planes 12, 13 and 14, 15 of the bearing rings 1, 2 (first
The total thickness t1 is slightly larger than that in Figure). The thickness t 2 of the separator portion 21 which is integrated with the sharp lip portions 16, 17, 18, and 19 is formed into a flat annular shape with an axial center that is slightly smaller than the above-mentioned distance to.

尖鋭リツプ部１６はセパレータ部２１の外周に
基部側があり、先端は軌道輪１の外径側の対向平
面１２に向き、且つ、スラストボールベアリング
の半径方向外側に向つて斜設されており、その基
部は太く先端は軌道輪１の対向平面１２と摺擦す
る鋭くなつたほぼ三角断面形状をしている。 The sharp lip portion 16 has a base side on the outer periphery of the separator portion 21, and a tip thereof faces the opposing plane 12 on the outer diameter side of the bearing ring 1 and is provided obliquely toward the outside in the radial direction of the thrust ball bearing. The base is thick and the tip has a sharp, almost triangular cross-sectional shape that rubs against the opposing plane 12 of the bearing ring 1.

尖鋭リツプ部１７はセパレータ部２１の外周に
基部側があり、先端は軌道輪２の外径側の対向平
面１３に向き且つ、スラストボールベアリングの
半径方向外側に向つて斜設されており、その基部
は太く先端は軌道輪２の対向平面１３と摺擦する
鋭くなつたほぼ三角断面形状をしている。 The sharp lip part 17 has a base side on the outer periphery of the separator part 21, a tip facing the facing plane 13 on the outer diameter side of the bearing ring 2, and is provided obliquely toward the outside in the radial direction of the thrust ball bearing. The tip is thick and has a sharp, almost triangular cross-sectional shape that rubs against the opposing plane 13 of the raceway ring 2.

尖鋭リツプ部１８はセパレータ部２１の内周に
基部側があり、先端は軌道輪１の内径側の対向平
面１４に向き、且つ、スラストボールベアリング
の軸心側に向つて斜設されており、その基部は太
く先端は軌道輪１の対向平面１４と摺擦する鋭く
なつたほぼ三角断面形状をしている。 The sharp lip portion 18 has a base side on the inner periphery of the separator portion 21, and a tip thereof faces the opposing plane 14 on the inner diameter side of the bearing ring 1, and is obliquely provided toward the axis of the thrust ball bearing. The base is thick and the tip has a sharp, almost triangular cross-sectional shape that rubs against the opposing plane 14 of the bearing ring 1.

尖鋭リツプ部１９はセパレータ部２１の内周に
基部側があり、先端は軌道輪２の内径側の対向平
面１５に向き、且つ、スラストボールベアリング
の軸心側に向つて斜設されており、その基部は太
く先端は軌道輪２の対向平面１５と摺擦する鋭く
なつたほぼ三角断面形状をしている。 The sharp lip portion 19 has a base side on the inner periphery of the separator portion 21, and a tip thereof faces the opposing plane 15 on the inner diameter side of the bearing ring 2, and is obliquely provided toward the axis of the thrust ball bearing. The base is thick and the tip has a sharp, almost triangular cross-sectional shape that rubs against the opposing plane 15 of the bearing ring 2.

尖鋭リツプ部１６と１７および１８と１９の隣
接する面は断面Ｖ形をなしている。このような断
面で尖鋭リツプ部１６，１７，１８，１９は軸中
心の円環状をなしている。 Adjacent surfaces of the sharp lip portions 16 and 17 and 18 and 19 have a V-shaped cross section. In such a cross section, the sharp lip portions 16, 17, 18, and 19 form an annular shape centered on the axis.

尖鋭リツプ部１６，１７，１８，１９の先端は
軌道輪１，２の対向平面１２，１３，１４，１５
と夫々確実に接し、該対向平面１２，１３，１
４，１５と軌道輪１，２の内外周との角に来ない
ような大きさとなつている。 The tips of the sharp lip portions 16, 17, 18, 19 are connected to the opposing planes 12, 13, 14, 15 of the bearing rings 1, 2.
, and the opposing planes 12, 13, 1
4 and 15 and the inner and outer circumferences of bearing rings 1 and 2.

セパレータ部２１には円周を等配して転動体４
が嵌入する保持孔２２が設けてある。保持孔２２
は転動体４が自在に回転を許され、且つ転動体４
がシールセパレータ３から脱出しないようにその
壁面は球形をしている。 The separator part 21 has rolling elements 4 arranged at equal circumferences.
A holding hole 22 into which the holder is inserted is provided. Holding hole 22
The rolling elements 4 are allowed to rotate freely, and the rolling elements 4
The wall surface of the seal separator 3 has a spherical shape to prevent it from escaping from the seal separator 3.

シールセパレータ３は転動体４間の摩擦を防止
すると共に均等に転動体４を配することにより負
荷を均等に受けるようにし、防塵を計るもので可
撓性を有する合成樹脂材料（たとえばポリアセタ
ール樹脂、ポリアミド樹脂等）で作られる。 The seal separator 3 prevents friction between the rolling elements 4, distributes the rolling elements 4 evenly to receive the load evenly, and protects against dust. It is made of a flexible synthetic resin material (for example, polyacetal resin, Polyamide resin, etc.).

第１図において上・下ケース２９，３１が相対
回転すると、同様に軌道輪１，２も相対回転し、
軌道面８，９と転動体４間で負荷を担持して転動
体４は自転公転して移動する。この公転速度でシ
ールセパレータ３は回転し、その尖鋭リツプ部１
６，１７は軌道輪１の対向平面１２，１４を彈圧
して摺擦し、その尖鋭リツプ部１７，１９は軌道
輪２の対向平面１３，１５を彈圧して摺擦する。
そして前述の上・下ケース２９，３１の内外径側
でのラビリンス作用に加え、極めて微細な粉塵は
シールセパレータ３の尖鋭リツプ部１６，１７お
よび１８，１９と軌道輪１，２間の接触シール作
用により防塵される。 In FIG. 1, when the upper and lower cases 29 and 31 rotate relative to each other, the bearing rings 1 and 2 also rotate relative to each other.
The rolling elements 4 rotate and revolve while carrying a load between the raceway surfaces 8 and 9 and the rolling elements 4. The seal separator 3 rotates at this revolution speed, and its sharp lip portion 1
6 and 17 compress and rub the opposing flat surfaces 12 and 14 of the bearing ring 1, and the sharp lip portions 17 and 19 compress and rub the opposing flat surfaces 13 and 15 of the bearing ring 2.
In addition to the labyrinth effect on the inner and outer diameter sides of the upper and lower cases 29 and 31 mentioned above, extremely fine dust also acts on the contact seal between the sharp lips 16, 17 and 18, 19 of the seal separator 3 and the bearing rings 1 and 2. It is dust-proof due to its action.

第３図はシールセパレータ３の他の実施例を示
す縦断面図である。外形は第２図のシールセパレ
ータ３と同一でその説明は省略される。この実施
例では比較的剛性が大きく転動体に対する摩擦が
小さいことが要求されるセパレータ部２１と、外
周側の尖鋭リツプ部１６，１７を含む外リツプ輪
２５および内周側の尖鋭リツプ部１８，１９を含
む内リツプ輪２６を設け、セパレータ部２１の内
外周に円環状の条溝を形成し、外リツプ輪２５の
内周の円環状突条および内リツプ輪２６の外周の
円環状突条と該セパレータ部２１の内外周の条溝
とが係合する嵌合部２７，２８を設け、内・外リ
ツプ輪２５，２６、セパレータ部２１を一体成形
もしくは組立てたものでである。このセパレータ
部２１は例えば前記した第１図の実施例のシール
セパレータ３と同材とし、内・外リツプ輪２５，
２６はゴムあるいはポリエステルエラストマー、
ポリウレタン等が用いられる。 FIG. 3 is a longitudinal sectional view showing another embodiment of the seal separator 3. The outer shape is the same as that of the seal separator 3 shown in FIG. 2, and its explanation will be omitted. In this embodiment, a separator portion 21 is required to have relatively high rigidity and low friction against rolling elements, an outer lip ring 25 including sharp lip portions 16 and 17 on the outer circumferential side, and a sharp lip portion 18 on the inner circumferential side. 19, an annular groove is formed on the inner and outer peripheries of the separator portion 21, and an annular protrusion on the inner circumference of the outer lip ring 25 and an annular protrusion on the outer circumference of the inner lip ring 26 are provided. Inner and outer lip rings 25, 26 and the separator part 21 are integrally molded or assembled, and are provided with fitting parts 27 and 28 that engage with grooves on the inner and outer peripheries of the separator part 21. This separator portion 21 is made of the same material as the seal separator 3 of the embodiment shown in FIG.
26 is rubber or polyester elastomer,
Polyurethane or the like is used.

〔考案の効果〕[Effect of idea]

この考案は球状転動体を保持したシールセパレ
ータの内・外周に尖鋭リツプ部を備え該尖鋭リツ
プ部を該軌道輪に摺接させて配されているから接
触シール作用により軌道輪と球状転動体との接触
部が外部から隔離され、当該接触部にグリース封
入が可能となる。両軌道輪が内・外周側に夫々ラ
ビリンス作用をなすシール部を形成した合成樹脂
製上・下ケースに嵌入収容されているので、軌道
輪と転動体との接触部は前記接触シール作用とラ
ビリンス作用をなすシール手段により二重にシー
ルされ、当該接触部への塵埃等の侵入は完全に防
止される。尖鋭リツプ部は曲げ作用を受けて組立
てられているから、ばね常数を小さくでき、摩耗
しても軌道輪との摺接圧力の変化はきわめて少な
く、シール性能に耐久性がある。 This device has sharp lip portions on the inner and outer peripheries of the seal separator that holds the spherical rolling elements, and the sharp lip portions are placed in sliding contact with the raceway ring, so that the contact sealing action allows the raceway ring and the spherical rolling element to be separated. The contact portion is isolated from the outside, and it is possible to seal the contact portion with grease. Since both raceway rings are fitted and housed in synthetic resin upper and lower cases that have seals that act as a labyrinth on the inner and outer peripheries, respectively, the contact area between the raceway ring and the rolling elements has the aforementioned contact sealing effect and labyrinth. It is double sealed by the operative sealing means, and dust and the like are completely prevented from entering the contact area. Since the sharp lip part is assembled under bending action, the spring constant can be made small, and even if it wears out, there will be very little change in the sliding contact pressure with the bearing ring, and the sealing performance will be durable.

第３図の実施例はセパレート部と内・外リツプ
輪を別材料で製作できるから、セパレート部は転
動体の保持に最適の材料を選択でき、内・外リツ
プ輪は接触シールとして最適の材料を選択でき
る。 In the embodiment shown in Fig. 3, the separate part and the inner and outer lip rings can be made of different materials, so the material that is most suitable for holding the rolling elements can be selected for the separate part, and the material that is most suitable for the inner and outer rip rings as a contact seal. can be selected.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案の実施例の縦断面図、第２
図、第３図は夫々がシールセパレータ部の実施例
の縦断面図、第４図は従来例の縦断面図、第５図
は自動車の懸架装置の縦断面図である。 １，２……軌道輪、３……シールセパレータ、
４……転動体、５……端面、６……シールプレー
ト、７……スラストボールベアリング、８，９…
…軌道面、１１……取付面、１２，１３，１４，
１５……対向平面、１６，１７，１８，１９……
尖鋭リツプ部、２１……セパレータ部、２２……
保持孔、２５……外リツプ輪、２６……内リツプ
輪、２７，２８……嵌合部、２９……上ケース、
３０……セパレータ、３１……下ケース、３２…
…円周溝、３３……突条、３４，３５……端面、
３６，３７……円筒形〓間、３８……円錐形〓
間、３９……ボデイ、４１……アツパーマウン
ト、４２……ラバーマウント、４３……ベアリン
グホルダ、４４……シヨツクアブソーバロツド、
４５……ナツト、４６……スプリングシート、４
７……コイルばね、４８……シヨツクアブソーバ
本体、４９……ばね座、５１……取付フランジ、
５２……円筒形部。 Figure 1 is a vertical cross-sectional view of an embodiment of this invention;
3 are longitudinal sectional views of an embodiment of the seal separator portion, FIG. 4 is a longitudinal sectional view of a conventional example, and FIG. 5 is a longitudinal sectional view of an automobile suspension system. 1, 2... Raceway ring, 3... Seal separator,
4...Rolling element, 5...End face, 6...Seal plate, 7...Thrust ball bearing, 8, 9...
... Raceway surface, 11 ... Mounting surface, 12, 13, 14,
15... Opposing plane, 16, 17, 18, 19...
Sharp lip part, 21... Separator part, 22...
Holding hole, 25... Outer lip ring, 26... Inner lip ring, 27, 28... Fitting part, 29... Upper case,
30...Separator, 31...Lower case, 32...
... Circumferential groove, 33 ... Projection, 34, 35 ... End surface,
36, 37...Cylindrical shape, 38...Conical shape
39...Body, 41...Upper mount, 42...Rubber mount, 43...Bearing holder, 44...Shock absorber rod,
45...Natsuto, 46...Spring seat, 4
7...Coil spring, 48...Shock absorber body, 49...Spring seat, 51...Mounting flange,
52...Cylindrical part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 断面が大略コ字形に形成された円環状の合成樹
脂製上・下ケースには軌道輪がその軌道面を相対
向させて夫々嵌入収容されており、該軌道輪間に
はセパレータ部と該セパレータ部の内周に先端が
軸心側に向つて斜め方向を向き、外周に先端が半
径方向外側へ向つて斜め方向を向いた尖鋭リップ
部を備えたシールセパレータが該尖鋭リップ部を
該軌道輪に摺接させて配されているとともに該セ
パレータ部には球状転動体が該軌道面に接触して
間隔を保持して配されており、該合成樹脂製上・
下ケースは内・外周側に夫々ラビリンス作用をな
すシール部を形成して彈性装着されていることを
特徴とするスラストボールベアリング。 Raceway rings are fitted and housed in the annular synthetic resin upper and lower cases, each having a roughly U-shaped cross section, with their raceway surfaces facing each other. A seal separator is provided with a sharp lip part on the inner periphery of which the tip faces diagonally toward the axis, and a sharp lip part on the outer periphery with the tip facing diagonally radially outward. The separator portion is arranged in sliding contact with the raceway surface, and spherical rolling elements are arranged in contact with the raceway surface to maintain a distance therebetween.
A thrust ball bearing characterized by the fact that the lower case is fitted with seals that act as labyrinths on the inner and outer sides, respectively.
JP1984107820U 1984-07-17 1984-07-17 thrust ball bearing Granted JPS6122926U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984107820U JPS6122926U (en) 1984-07-17 1984-07-17 thrust ball bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984107820U JPS6122926U (en) 1984-07-17 1984-07-17 thrust ball bearing

Publications (2)

Publication Number Publication Date
JPS6122926U JPS6122926U (en) 1986-02-10
JPH0121213Y2 true JPH0121213Y2 (en) 1989-06-26

Family

ID=30667044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984107820U Granted JPS6122926U (en) 1984-07-17 1984-07-17 thrust ball bearing

Country Status (1)

Country Link
JP (1) JPS6122926U (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2501793Y2 (en) * 1990-11-05 1996-06-19 日本精工株式会社 Thrust ball bearing for suspension and its race
JP2001132761A (en) * 1999-11-08 2001-05-18 Koyo Seiko Co Ltd Thrust ball bearing
JP6479444B2 (en) * 2014-12-03 2019-03-06 オイレス工業株式会社 Slide bearing and strut type suspension

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749118A1 (en) * 1977-11-03 1979-05-10 Zahnradfabrik Friedrichshafen Ball or roller thrust bearing with integral seal - has plastics cage with sealing lips formed on sides of radial slots

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749118A1 (en) * 1977-11-03 1979-05-10 Zahnradfabrik Friedrichshafen Ball or roller thrust bearing with integral seal - has plastics cage with sealing lips formed on sides of radial slots

Also Published As

Publication number Publication date
JPS6122926U (en) 1986-02-10

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