JPH0736183Y2 - Bearing seal - Google Patents
Bearing sealInfo
- Publication number
- JPH0736183Y2 JPH0736183Y2 JP1990056662U JP5666290U JPH0736183Y2 JP H0736183 Y2 JPH0736183 Y2 JP H0736183Y2 JP 1990056662 U JP1990056662 U JP 1990056662U JP 5666290 U JP5666290 U JP 5666290U JP H0736183 Y2 JPH0736183 Y2 JP H0736183Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- outer ring
- seal
- bearing seal
- flange
- 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 - Lifetime
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
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race
-
- 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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
-
- 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
- F16C2326/02—Wheel hubs or castors
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、内輪あるいは外輪にハブを持つハブユニット
形転がり軸受の密封構造に関し、具体的には複数のシー
ルリップを備え密封力に優れるベアリングシールの形状
改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a sealing structure of a hub unit type rolling bearing having a hub on an inner ring or an outer ring, and specifically, a bearing having a plurality of sealing lips and excellent in sealing force. Relating to improving the shape of the seal.
［従来の技術］ 従来、転がり軸受は、外輪内の片方に転がり体を塊状に
挿入して他の片方の空間に内輪を偏心配置せしめ、前記
転がり体のそれぞれを均等に配置して内輪を位置決めし
た後、転がり体保持器を装着して組み上げる構成でなっ
ており、これを密封するシール材の装着においては、図
面に基ずいて説明すると、第３図に示すように内輪
（１）と外輪（２）にハブ（４）を有するハブユニット
の場合、組み立てた後に装着する手段および余裕空間を
あまり持ち合わせていないから、予め組み立てる前に内
輪（１）あるいは外輪（２）に該シール材（７）を装着
してその後前記した手順によってユニット本体を組み上
げなければならない。[Prior Art] Conventionally, in a rolling bearing, a rolling body is inserted into one of the outer rings in a lump shape, and the inner ring is eccentrically arranged in the space of the other one, and the rolling bodies are evenly arranged to position the inner ring. After that, the rolling body cage is mounted and assembled, and the mounting of the sealing material for sealing this will be described with reference to the drawings. As shown in FIG. 3, the inner ring (1) and the outer ring are In the case of the hub unit having the hub (4) in (2), since there is not much means for mounting after assembly and an extra space, the sealing material (7) is attached to the inner ring (1) or the outer ring (2) before assembling in advance. ) Must be installed and then the unit body must be assembled according to the procedure described above.
この一般的な構造としては、第３図に示すのように外輪
（２）の外周部に柔軟度の大きいシール材（７）が装着
され、対向する内輪（１）のハブフランジ（４）側面と
かそのコーナーなどの偏心装着をある程度許容できる場
所に配設せしめこれを接触摺動させて密封力を発生させ
ている。As a general structure, as shown in FIG. 3, a seal material (7) having a high degree of flexibility is attached to the outer peripheral portion of the outer ring (2), and the side faces of the hub flange (4) of the inner ring (1) facing each other. It is arranged at a place where eccentric mounting such as a corner can be allowed to some extent, and this is brought into contact sliding to generate a sealing force.
［考案が解決しようとする課題］ しかしながら、前記のような内輪（１）と外輪（２）と
の間にシール材（７）が装着される構造では、ハブユニ
ットを組み立てる前に該シール材（７）が取り付けられ
るので、該ハブユニットを組み上げる際、内・外輪
（１）（２）を偏心せしめると該シール材（７）の内輪
（１）の外周面近くに位置するリップは大きい局部的変
形を余儀なくされ、永久歪みあるいは悪くすると損傷を
起こしかねない危険性を常に有しており、このため該シ
ール材（７）には内・外輪（１）（２）の大きな偏心に
追随できるフレキシブルな形状あるいは材料が求められ
その形状と材質に大きな制約を与える重大な欠点となっ
ていた。[Problems to be solved by the invention] However, in the structure in which the seal material (7) is mounted between the inner ring (1) and the outer ring (2) as described above, the seal material (7) is assembled before the hub unit is assembled. 7) is attached, the lip located near the outer peripheral surface of the inner ring (1) of the seal material (7) is large when the inner / outer ring (1) (2) is eccentric when the hub unit is assembled. The seal material (7) is forced to deform, and there is always a risk of permanent deformation or damage if it is worsened. Therefore, the sealing material (7) is flexible enough to follow the large eccentricity of the inner and outer rings (1) and (2). It has been a serious drawback that a new shape or material is required, and the shape and material are greatly restricted.
従って、ハブユニットのシール装置においては未だ満足
できる密封性能を持つに至っていない。Therefore, the sealing device for the hub unit has not yet reached a satisfactory sealing performance.
本考案は、この様な欠点に鑑み、ハブユニットの組立て
性に優れ高い密封性能を発揮するベアリングシールを提
供することを目的としている。The present invention has been made in view of such drawbacks, and an object thereof is to provide a bearing seal which is excellent in assembling property of the hub unit and exhibits high sealing performance.
［課題を解決するための手段］ 本考案は、第１図に示すように、内輪（１）と外輪
（２）と転がり体（３）からなり、その内輪（１）と外
輪（２）に径方向へ延びるハブフランジ（４）を備えた
ハブユニットに装着され、その内部と外部とを密封遮断
するベアリングシールであって、前記ベアリングシール
は補強環（５）に弾性体製のシールリップ（６）を複数
設けてなり、該補強環（５）を筒部（51）とフランジ部
（52）からなる略Ｌ字形状に造形して該フランジ部（5
2）へ前記シールリップ（６）を配設せしめ、外径側の
筒部（51）を前記外輪（２）の偏心時にその外周面に大
部分が接触しない大径として該筒部（51）の端部を内・
外輪（１）（２）組み上げた後外輪（２）のハブフラン
ジ（４）側面に嵌着固定せしめたことを特徴としてい
る。[Means for Solving the Problems] As shown in FIG. 1, the present invention comprises an inner ring (1), an outer ring (2), and a rolling element (3), and the inner ring (1) and the outer ring (2) have the same structure. A bearing seal, which is mounted on a hub unit having a hub flange (4) extending in the radial direction and hermetically shuts off the inside and the outside of the hub unit, wherein the bearing seal is formed on a reinforcing ring (5) and made of an elastic seal lip ( 6) are provided, and the reinforcing ring (5) is formed into a substantially L-shape including the tubular portion (51) and the flange portion (52), and the flange portion (5) is formed.
The seal lip (6) is arranged in 2), and the outer diameter side tubular portion (51) is set to a large diameter so that most of it does not come into contact with the outer peripheral surface of the outer ring (2) when it is eccentric. The inside of the
The outer ring (1) (2) is assembled and fixed to the side surface of the hub flange (4) of the rear outer ring (2).
［作用］ 本考案は上記のような構造によって以下に優れた作用を
なす。[Operation] The present invention has the following excellent operation due to the above structure.
すなわち、本考案のベアリングシールを装着するに、最
初に外輪（２）にベアリングシールを遊置せしめ、その
後転がり体（３）と内輪（１）を挿入して転がり体
（３）を所定の配置に分配固定しハブユニットを組上げ
る。このとき前記ベアリングシールは補強環（５）の筒
部（51）が組み付け偏心時外輪（２）の外周に大部分が
接触することのない大径であるので該大径部分が偏心を
吸収し内・外輪（１）（２）の偏心に影響されずシール
リップ（６）が変形応力を受けることがない。That is, when the bearing seal of the present invention is installed, first the bearing seal is left idle in the outer ring (2), and then the rolling element (3) and the inner ring (1) are inserted to arrange the rolling element (3) in a predetermined arrangement. Distribute and fix to and assemble the hub unit. At this time, the bearing seal has a large diameter so that most of it does not come into contact with the outer periphery of the outer ring (2) when the tubular portion (51) of the reinforcing ring (5) is assembled and eccentric, so the large diameter portion absorbs the eccentricity. The seal lip (6) is not subject to deformation stress without being affected by the eccentricity of the inner and outer rings (1) and (2).
次に前記した筒部（51）の端部を外輪（２）のハブフラ
ンジ（４）側面に嵌合固定せしめて第１図に示したよう
なハブユニットを完成させる。Next, the end portion of the cylindrical portion (51) described above is fitted and fixed to the side surface of the hub flange (4) of the outer ring (2) to complete the hub unit as shown in FIG.
［実施例］ 本考案の実施において、ベアリングシールの補強環
（５）の筒部（51）の端部をハブフランジ（４）側面へ
取付固定するのに、第１図では該端部の最外縁を前記ハ
ブフランジ（４）に形成した庇部に嵌着した構成を示し
たが、これに限らず、その他の構造として第２図に示す
ように、ハブフランジ（４）に設けた拡径段部（８）の
外周面へ該端部の内周部を嵌合せしめて装着固定するこ
とも可能となる。[Embodiment] In the practice of the present invention, the end of the tubular portion (51) of the reinforcing ring (5) of the bearing seal is attached and fixed to the side surface of the hub flange (4). Although the configuration in which the outer edge is fitted to the eaves portion formed on the hub flange (4) is shown, the invention is not limited to this, and as another structure, as shown in FIG. 2, a diameter expansion provided on the hub flange (4) is provided. It is also possible to fit and fix the inner peripheral portion of the end portion by fitting it to the outer peripheral surface of the step portion (8).
なお、このベアリングシールの固定部における密封にお
いては、外輪（２）の外面に接するように端部あるいは
フランジ部（52）の内側面へパッキング（９）を配設す
れば、該ベアリングシールを移動せしめて圧入固着する
と同時に該パッキング（９）が圧接触してシール作用を
発揮するので正確な簡便な密封方法となる。In the sealing of the fixed portion of the bearing seal, if the packing (9) is arranged at the end portion or the inner surface of the flange portion (52) so as to contact the outer surface of the outer ring (2), the bearing seal can be moved. At the same time, the packing (9) is pressed into contact and fixed, and at the same time, the packing (9) is brought into pressure contact with each other to exert a sealing action, so that an accurate and simple sealing method is provided.
なお、前記筒部（51）の固定取付においては、図示した
嵌合圧着固定の外、ボルト等の簡便な締付手段を用いて
も差し支えない。In addition, in the fixed attachment of the tubular portion (51), simple fastening means such as bolts may be used in addition to the illustrated fitting crimp fixing.
［考案の効果］ 上記のような構造により、ハブユニットの偏心組み付け
時にベアリングシールのシールリップ（６）は一切外的
応力を受けず損傷歪みから開放されて密封性能を飛躍的
に高めるのに成功した。また、シールリップ（６）を設
計するときその局部変形回復性あるいは局部引っ張り性
など考慮する必要がないから性能本位で全体の小型化が
図れ軽量化に寄与するものとなる。[Advantage of the Invention] With the structure as described above, the seal lip (6) of the bearing seal is released from damage distortion without any external stress when the hub unit is eccentrically assembled, and the sealing performance is dramatically improved. did. Further, when designing the seal lip (6), it is not necessary to consider the local deformation recovery property or the local tensile property, so that the overall size can be reduced in terms of performance and the weight can be reduced.
第１図は本考案のベアリングシールを表した断面図であ
る。第２図は本考案の他の実施例を示す断面図である。
第３図はハブユニットに装着された従来のシール材を示
した断面図である。 １……内輪、２……外輪、３……転がり体、４……ハブ
フランジ、５……補強環、51……筒部、52……フランジ
部、６……シールリップ、８……拡径段部、９……パッ
キング。FIG. 1 is a sectional view showing a bearing seal of the present invention. FIG. 2 is a sectional view showing another embodiment of the present invention.
FIG. 3 is a sectional view showing a conventional seal member mounted on the hub unit. 1 ... Inner ring, 2 ... Outer ring, 3 ... Rolling body, 4 ... Hub flange, 5 ... Reinforcing ring, 51 ... Cylinder part, 52 ... Flange part, 6 ... Seal lip, 8 ... Expansion Diameter step, 9 ... Packing.
Claims (1)
からなり、その内輪（１）と外輪（２）に径方向のハブ
フランジ（４）を備えたハブユニットのベアリングシー
ルにおいて； 前記ベアリングシールは弾性体製のシールリップ（６）
とこれを補強する補強環（５）とからなり、 前記補強環（５）を筒部（51）とフランジ部（52）から
なる略Ｌ字形状に造形して該フランジ部（52）へ前記シ
ールリップ（６）を配設せしめ、 外径側の筒部（51）を前記外輪（２）の外周面から離間
する大径として該筒部（51）の端部を外輪（２）のハブ
フランジ（４）側面に装着固定せしめたことを特徴とし
たベアリングシール。1. An inner ring (1), an outer ring (2) and a rolling body (3)
A bearing seal of a hub unit consisting of an inner ring (1) and an outer ring (2) of which a radial hub flange (4) is provided; said bearing seal being an elastic sealing lip (6)
And a reinforcing ring (5) for reinforcing the same, and the reinforcing ring (5) is shaped into a substantially L-shape including a cylindrical portion (51) and a flange portion (52), and is formed into the flange portion (52). A seal lip (6) is arranged so that the outer diameter side tubular portion (51) is separated from the outer peripheral surface of the outer ring (2) to have a large diameter, and the end portion of the tubular portion (51) is a hub of the outer ring (2). A bearing seal characterized by being attached and fixed to the side surface of the flange (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990056662U JPH0736183Y2 (en) | 1990-05-29 | 1990-05-29 | Bearing seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990056662U JPH0736183Y2 (en) | 1990-05-29 | 1990-05-29 | Bearing seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0414817U JPH0414817U (en) | 1992-02-06 |
| JPH0736183Y2 true JPH0736183Y2 (en) | 1995-08-16 |
Family
ID=31580685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990056662U Expired - Lifetime JPH0736183Y2 (en) | 1990-05-29 | 1990-05-29 | Bearing seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0736183Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101195665B1 (en) | 2004-07-16 | 2012-10-30 | 엔오케이 가부시키가이샤 | Sealing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5181794B2 (en) * | 2008-04-04 | 2013-04-10 | 株式会社ジェイテクト | Rolling bearing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833939B2 (en) * | 1975-07-09 | 1983-07-23 | エス カ−ル エフ インダストリアル トレイデイング アンド デベロツプメント カンパニイ ビ− ヴイ | Sealed rolling bearings for automobile wheels |
| JPH07113377B2 (en) * | 1986-07-25 | 1995-12-06 | 日本精工株式会社 | Rolling bearing sealing device |
-
1990
- 1990-05-29 JP JP1990056662U patent/JPH0736183Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101195665B1 (en) | 2004-07-16 | 2012-10-30 | 엔오케이 가부시키가이샤 | Sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0414817U (en) | 1992-02-06 |
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