JPH0741973Y2 - Sealing device - Google Patents
Sealing deviceInfo
- Publication number
- JPH0741973Y2 JPH0741973Y2 JP1990045511U JP4551190U JPH0741973Y2 JP H0741973 Y2 JPH0741973 Y2 JP H0741973Y2 JP 1990045511 U JP1990045511 U JP 1990045511U JP 4551190 U JP4551190 U JP 4551190U JP H0741973 Y2 JPH0741973 Y2 JP H0741973Y2
- Authority
- JP
- Japan
- Prior art keywords
- slinger
- seal
- ring
- hub
- sealing device
- 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
- 238000007789 sealing Methods 0.000 title claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 6
- 239000003566 sealing material Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
- F16C33/7889—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to an inner race and extending toward the outer race
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
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、具体的には複数の部材
を組み合わせた密封力に優れるシール装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a sealing structure for a hub unit type rolling bearing having a hub on an inner ring or an outer ring, and more specifically, a seal excellent in sealing force by combining a plurality of members. Regarding the device.
［従来の技術］ 従来、転がり軸受けは、その内・外輪を大きく偏心さ
せ、転がり体をその偏心せしめて作った空間に挿入した
後それぞれを均等に配列し、これに転がり体の保持器を
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）とか外輪（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前輪（１）あるいは外輪
（２）に該シール材（９）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 rolling bearings, the inner and outer rings are largely eccentric, the rolling bodies are inserted into the eccentric space, and then the rolling bearings are evenly arranged. The mounting of the sealing material for sealing this will be explained with reference to the drawings. As shown in FIG. 3, the hub (4) is attached to the inner ring (1) or the outer ring (2). In the case of a hub unit that has, since there is not much means for mounting after assembly and a spare space, the sealing material (9) is mounted on the front wheel (1) or the outer ring (2) before assembling in advance, and then the procedure described above. The unit body must be assembled according to.
この一般的な構造は、第３図のように外輪（２）の外周
部に柔軟度の大きいシール材（９）が装着され、対向す
る内輪（１）のハブ（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
摺動させて密封力を発生させている。In this general structure, as shown in FIG. 3, a seal material (9) having a high degree of flexibility is attached to the outer peripheral portion of the outer ring (2), and the side surface of the hub (4) of the inner ring (1) facing each other or the corner thereof. The eccentric mounting is arranged at a position where the eccentric mounting is allowed to some extent, and the sealing force is generated by sliding this.
［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（９）が装着される構造ではハブユニッ
トを組み立てる前に取り付けられるが、転がり体（３）
を挿入する際、内・外輪（１）（２）を偏心せしめると
該シール材（９）の内輪（１）の周面近くに位置するリ
ップは大きい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（９）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
るいはそのため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 (9) is mounted between the inner ring (1) and the outer ring (2) as described above, the hub unit is mounted before assembling, but rolling Body (3)
If the inner and outer rings (1) and (2) are eccentric when inserting, the lip located near the peripheral surface of the inner ring (1) of the seal material (9) is subject to large deformation and permanent deformation or damage caused by deterioration. There is always a risk that this may cause the inner and outer rings (1) to be included in the sealing material (9).
A flexible shape capable of following the large eccentricity of (2) or a material for that purpose has been a serious drawback that greatly restricts the shape and material.
従って、ハブユニットは未だ満足できる密封性能を持つ
に至っていない。Therefore, 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シール装置を提供する
ことを目的としている。The present invention has been made in view of these drawbacks, and an object thereof is to provide a seal device which is excellent in assembling 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）からなりその片方あるいわ両方
に径方向に延びるフランジ状のハブ（４）を備えたハブ
ユニットのシール装置であって、前記シール装置は、金
属製のスリンガー（５）と補強環（６）へ弾性体製のシ
ールリップ（７）を複数配設したシール本体（８）との
組合わせからなっており、前記スリンガー（５）を略コ
字断面形状あるいは略逆Ｌ字断面形状に造形して外輪
（２）の外周部に嵌合装着し、シール本体（８）の補強
環（６）を前記スリンガー（５）の外側端まで延びて折
り返される略Ｔ字形状に造形して、その外周端部を内輪
（１）から立ち上がったハブ（４）の側面に取付固定せ
しめ、他方の内周部に形成したシールリップ（７）を前
記スリンガー（５）のコ字形内側周面または逆Ｌ字形内
側周面に摺接せしめたことを特徴としている。[Means for Solving the Problems] The present invention, as shown in FIG. 1, has a flange shape which is composed of an inner ring (1), an outer ring (2) and a rolling body (3) and extends in a radial direction on both sides of one of them. A sealing device for a hub unit having a hub (4), wherein the sealing device comprises a plurality of elastic sealing lips (7) arranged on a metal slinger (5) and a reinforcing ring (6). The slinger (5) is combined with a seal body (8), and the slinger (5) is shaped into a substantially U-shaped cross section or a substantially inverted L-shaped cross section and is fitted and mounted on the outer peripheral portion of the outer ring (2) to seal. The reinforcing ring (6) of the main body (8) is shaped into a substantially T shape that extends to the outer end of the slinger (5) and is folded back, and the outer peripheral end portion of the hub (4) rising from the inner ring (1). Seal lip (7 ) Is slidably contacted with the U-shaped inner peripheral surface or the inverted L-shaped inner peripheral surface of the slinger (5).
［作用］ 本考案はこのような構造によって以下に示す優れた作用
をなす。[Operation] The present invention has the following excellent operation by such a structure.
すなわち、本考案のシール装置を装着するに、まずシー
ル本体（８）とスリンガー（５）とを組み付けてシール
装置を一体化せしめ、該一体化したシール装置を外輪
（２）の外周面に圧入嵌合する。次に内輪（１）と外輪
（２）及び転がり体（３）を組み立て、その後シール本
体（８）の外周端部をハブ（４）の側面に取付固定して
シール装置を完成する。That is, when mounting the seal device of the present invention, first, the seal body (8) and the slinger (5) are assembled to integrate the seal device, and the integrated seal device is press-fitted onto the outer peripheral surface of the outer ring (2). Mating. Next, the inner ring (1), the outer ring (2) and the rolling element (3) are assembled, and then the outer peripheral end of the seal body (8) is attached and fixed to the side surface of the hub (4) to complete the sealing device.
このシール装置の密封力はシール本体（８）に設けたシ
ールリップ（７）がスリンガー（５）に摺接することに
よって確保されているが、この接触状態は、第１図及び
第２図に示したように前記スリンガー（５）の径方向と
か軸方向などの内側周面に複数摺接せしめ、さらにその
開口部に略Ｔ字形状の折り返し部とスリンガー（５）の
端面とで形成した接近部によりラビリンス作用を発揮せ
しめるなどして強い密封力を得さしめる。The sealing force of this sealing device is ensured by the seal lip (7) provided on the seal body (8) slidingly contacting the slinger (5). This contact state is shown in FIG. 1 and FIG. As described above, the slinger (5) is slidably in contact with a plurality of inner circumferential surfaces such as the radial direction and the axial direction, and the opening portion thereof is formed by the substantially T-shaped folded portion and the end surface of the slinger (5). It provides a strong sealing force by exerting a labyrinth effect.
［実施例］ 本考案の実施例において、このシール装置の取付では、
スリンガー（５）の外側端面と、シール本体（８）の補
強環（６）の前記スリンガー（５）の外側端まで延びる
折り返し部の端面とに、外側方向より同時に押し圧を加
えることにより両部材が正確な配置関係を保ったまま固
定されるので装着不備のない取付を約束する。[Embodiment] In the embodiment of the present invention, when the sealing device is attached,
Both members are simultaneously applied from the outer direction to the outer end surface of the slinger (5) and the end surface of the folded portion of the reinforcing ring (6) of the seal body (8) extending to the outer end of the slinger (5) from both sides. Since it is fixed while maintaining the correct arrangement relationship, it promises to be installed without any imperfections.
または、第２図に示すように、スリンガー（５）内を軸
方向にシール本体（８）が移動可能な空間を有するシー
ル装置にあっては、シール本体（８）のみをハブ（４）
側に移動せしめて圧入固着することが可能となるので装
着箇所の構造に応じて選択する自由度が残っている。Alternatively, as shown in FIG. 2, in a sealing device having a space in which the seal body (8) can move in the slinger (5) in the axial direction, only the seal body (8) has a hub (4).
Since it becomes possible to press and fix it by moving it to the side, there is still a degree of freedom to select according to the structure of the mounting location.
［考案の効果］ 上記のような構造により、フランジ状のハブ（４）を持
つハブユニットにシール性能の優れる組合せシールを簡
単で正確に装着でき、その密封性能を飛躍的に高めるの
に成功した。また、ハブユニットの外部にシール装置が
配置固定されるので運転時ユニットから発せられる伝導
温の影響を全く受けないばかりか、シール装置自体が発
する摩擦熱も速やかに冷却されるためシール装置の使用
温度が低下しシールリップ（７）の熱劣化が妨げる。[Advantage of the Invention] With the above structure, the hub unit having the flange-shaped hub (4) can be easily and accurately fitted with the combination seal having excellent sealing performance, and the sealing performance has been dramatically improved. . In addition, since the sealing device is placed and fixed on the outside of the hub unit, it is not affected by the conduction temperature generated from the unit during operation, and the friction heat generated by the sealing device itself is also rapidly cooled, so that the sealing device can be used. The temperature lowers and heat deterioration of the seal lip (7) is prevented.
また、従来はリップ摺動部がハブ（４）の一部であるた
め泥水による錆を防ぐことが不可能であったが、本考案
ではスリンガー（５）に防錆作用の有る材料を使用する
かあるいは表面処理を施すことにより防錆性能を飛躍的
に向上させることができる。以上の効果によりシール耐
久性が大きく向上する。Further, in the past, it was impossible to prevent rust due to muddy water because the lip sliding part is part of the hub (4), but in the present invention, the slinger (5) uses a material having an anticorrosive action. Alternatively, by applying a surface treatment, the rust prevention performance can be dramatically improved. Due to the above effects, the seal durability is greatly improved.
さらに、ハブユニットを設計するとき該ユニット間にシ
ール装置のスペースを考慮する必要がないから全体の小
型化が図れ軽量化に寄与するものとなる。Further, when designing the hub unit, it is not necessary to consider the space of the sealing device between the units, so that the overall size can be reduced and the weight can be reduced.
また、シールリップ（７）の摺動は平滑度の良好なスリ
ンガー（５）の内側周面でなされるのでハブユニットの
特別の研磨加工を不要としている。Further, the sliding of the seal lip (7) is performed on the inner peripheral surface of the slinger (5) having a good smoothness, so that the hub unit is not required to be specially polished.
第１図は本考案のシール装置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、５……スリンガー、６……補強環、７……シールリ
ップ、８……シール本体。FIG. 1 is a sectional view showing a sealing device 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, 5 ... Slinger, 6 ... Reinforcing ring, 7 ... Seal lip, 8 ... Seal body.
Claims (1)
からなりその片方あるいは両方に径方向のハブ（４）を
備えたハブユニットのシール装置において； 前記シール装置は、金属製のスリンガー（５）と補強環
（６）に弾性体製のシールリップ（７）を複数設けたシ
ール本体（８）との組合せからなっており、 前記スリンガー（５）を略コ字断面形状あるいは略逆Ｌ
字断面形状に造形して外輪（２）の外周部に装着し、 シール本体（８）の補強環（６）を前記スリンガー
（５）の外側端まで延びて折り返される略Ｔ字形状に造
形して、その外周端部を内輪（１）から立ち上がったハ
ブ（４）の側面に取付固定せしめ、他方の内周部に形成
したシールリップ（７）を前記スリンガー（５）のコ字
形内側周面あるいは逆Ｌ字形内側周面に摺接せしめたこ
とを特徴としたシール装置。1. An inner ring (1), an outer ring (2) and a rolling body (3)
A hub unit sealing device comprising a radial hub (4) on one or both sides; the sealing device comprising a metal slinger (5) and a reinforcing ring (6) made of an elastic sealing lip ( 7) is provided in combination with the seal body (8), and the slinger (5) has a substantially U-shaped cross section or a substantially inverted L shape.
The outer ring (2) is shaped into a V-shaped cross section and attached to the outer periphery of the outer ring (2), and the reinforcing ring (6) of the seal body (8) extends to the outer end of the slinger (5) and is folded back into a substantially T shape. And its outer peripheral end is attached and fixed to the side surface of the hub (4) rising from the inner ring (1), and the seal lip (7) formed on the other inner peripheral part is attached to the U-shaped inner peripheral surface of the slinger (5). Alternatively, the seal device is characterized in that it is slidably contacted with the reverse L-shaped inner peripheral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990045511U JPH0741973Y2 (en) | 1990-04-27 | 1990-04-27 | Sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990045511U JPH0741973Y2 (en) | 1990-04-27 | 1990-04-27 | Sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH044563U JPH044563U (en) | 1992-01-16 |
| JPH0741973Y2 true JPH0741973Y2 (en) | 1995-09-27 |
Family
ID=31559756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990045511U Expired - Fee Related JPH0741973Y2 (en) | 1990-04-27 | 1990-04-27 | Sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0741973Y2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1840425A4 (en) * | 2004-12-28 | 2011-03-16 | Eagle Ind Co Ltd | Shaft sealing device |
| JP5422868B2 (en) * | 2006-08-14 | 2014-02-19 | 株式会社ジェイテクト | Axle bearing device |
| JP5218735B2 (en) * | 2007-12-12 | 2013-06-26 | Ｎｏｋ株式会社 | Sealing device |
| JP4807804B2 (en) * | 2008-02-04 | 2011-11-02 | Ｎｔｎ株式会社 | Wheel bearing device |
| WO2016111129A1 (en) * | 2015-01-07 | 2016-07-14 | Nok株式会社 | Sealing structure using torsional damper and oil seal |
| FR3033851B1 (en) * | 2015-03-19 | 2017-10-13 | Ntn Snr Roulements | BEARING BEARING EQUIPPED WITH A SEALING DEVICE COMPRISING AN ARMATURE |
| JPWO2024048552A1 (en) * | 2022-08-31 | 2024-03-07 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61112119U (en) * | 1984-12-26 | 1986-07-16 | ||
| JPH0247475U (en) * | 1988-09-26 | 1990-03-30 |
-
1990
- 1990-04-27 JP JP1990045511U patent/JPH0741973Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH044563U (en) | 1992-01-16 |
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