JPH0596550U - Bearing seal - Google Patents
Bearing sealInfo
- Publication number
- JPH0596550U JPH0596550U JP042794U JP4279492U JPH0596550U JP H0596550 U JPH0596550 U JP H0596550U JP 042794 U JP042794 U JP 042794U JP 4279492 U JP4279492 U JP 4279492U JP H0596550 U JPH0596550 U JP H0596550U
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- fitting
- bearing seal
- flexible structure
- seal
- 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.)
- Granted
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
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
- F16C33/7856—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race with a single sealing lip
-
- 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
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
-
- 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
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
(57)【要約】
本考案は、ベアリングを密封するベアリングシールであ
って、ベアリング１の嵌合溝２に挿入される嵌合部３に
柔軟構造を持たしめ装着性と固定性を向上せしめたベア
リングシールに関するものである。
【構成】 ベアリングシールＡの嵌合部３に膨出部４を
形成し、該膨出部４に柔構造部５を形成したことを特徴
としている。
(57) [Summary] The present invention is a bearing seal for sealing a bearing, which has a flexible structure in the fitting portion 3 inserted into the fitting groove 2 of the bearing 1 to improve the mountability and the fixability. It concerns bearing seals. A bulging portion 4 is formed on the fitting portion 3 of the bearing seal A, and a flexible structure portion 5 is formed on the bulging portion 4.
Description
【０００１】[0001]
本考案は、ベアリングへの装着性及び固着性に優れるベアリングシールに関す る。 The present invention relates to a bearing seal having excellent mountability and adherence to a bearing.
【０００２】[0002]
従来、ベアリングに装着されるベアリングシールＢは、図５に示すように、所 望のリング形状に形成された補強環６とシールリップ７を有する密封体ａからな っており、その装着においては、ベアリングシールＢの側面を圧入治具８で押し 込み、ベアリング１に設けられた嵌合溝２へベアリングシールＢの嵌合部３を圧 挿入して固着を図っている。 Conventionally, a bearing seal B mounted on a bearing has a sealing body a having a desired ring-shaped reinforcing ring 6 and a seal lip 7 as shown in FIG. The side surface of the bearing seal B is pushed by the press-fitting jig 8, and the fitting portion 3 of the bearing seal B is pressed into the fitting groove 2 provided in the bearing 1 to fix the bearing.
【０００３】[0003]
しかしながら、前記のベアリングシールＢの嵌合部３は正規位置に嵌着される と一定の固定作用を発揮するよう設計されているが、装着時の挿入性、作業性な どは成型上あるいは製造コスト上から充分な考慮がなされていない。 すなわち、従来のベアリングシールＢはベアリング１の嵌合溝２にベアリング シールＢの嵌合部３が滑り込む状態で装着がなされるので、嵌入の成否は該嵌合 溝２と嵌合部３との寸法に大きく左右され、一般的に浅く巾細に形成される嵌合 溝２に対してベアリングシールＢを挿入する時、図６に示すように、ベアリング シールＢの嵌合部３は強い圧入力が加わっても完全な挿入がなされない内に嵌合 溝２の奥の嵌合棚２１に接触して停止し、悪くすると該嵌合部３の一部分が前記 嵌合溝２の入口の外方に残る耳残り３１を発生させる。 However, although the fitting portion 3 of the bearing seal B is designed to exhibit a certain fixing action when fitted in a regular position, the insertability and workability at the time of mounting may be improved by molding or manufacturing. The cost is not sufficiently taken into consideration. That is, the conventional bearing seal B is mounted in a state in which the fitting portion 3 of the bearing seal B slides into the fitting groove 2 of the bearing 1. Therefore, the success or failure of the fitting is determined by the fitting groove 2 and the fitting portion 3. When the bearing seal B is inserted into the fitting groove 2 which is largely shallow and narrow, which is greatly influenced by the dimensions, as shown in FIG. 6, the fitting portion 3 of the bearing seal B has a strong pressure input. Even if a force is applied, it will not be completely inserted and will stop by contacting the fitting shelf 21 at the back of the fitting groove 2, and if it becomes bad, a part of the fitting portion 3 will be located outside the entrance of the fitting groove 2. The ear ears 31 remaining in the left are generated.
【０００４】 こうなると前記ベアリングシールＢは偏芯現象を生じるばかりでなく、その固 着力を大幅に弱め、共回りあるいは少しの振動によって脱落さえ起こしかねない ものとなる。 本考案はこのような欠点に鑑み、挿入性を飛躍的に高めかつ強固な嵌合固定力 を得さしめるベアリングシールを提供することを目的としている。In this case, the bearing seal B not only causes an eccentricity phenomenon, but also significantly weakens the fixing force thereof, and may even come off due to co-rotation or slight vibration. In view of such drawbacks, the present invention has an object to provide a bearing seal that dramatically improves the insertability and obtains a strong fitting and fixing force.
【０００５】[0005]
本考案を図面に基づいて説明すると、図１に示すように密封体ａと補強環６か らなり、相対回転するベアリング１、１′に取り付けられてその密封をなすベア リングシールＡであって、前記ベアリング１の嵌合溝２に挿入される前記ベアリ ングシールＡの嵌合部３に軸方向へ膨出する膨出部４を設け、該膨出部４に切り 込み、凹み等の柔構造部５を刻設したことを特徴としている。 The present invention will be described with reference to the drawings. As shown in FIG. 1, a bare ring seal A, which is composed of a sealing body a and a reinforcing ring 6, is attached to bearings 1 and 1 ′ that rotate relative to each other to form a hermetic seal. A bulging portion 4 that bulges in the axial direction is provided in the fitting portion 3 of the bearing seal A that is inserted into the fitting groove 2 of the bearing 1, and a flexible structure such as a notch or a recess is formed in the bulging portion 4. The feature is that the part 5 is engraved.
【０００６】[0006]
本考案は、上記した構造をもって下記に示す優れた作用をなす。 本考案のベアリングシールＡの嵌合部３は上記のような突出した膨出部４と該 膨出部４が柔軟に変形することを可能とする柔構造部３を有するものであり、合 成ゴム等からなる密封体ａの弾性質量を多く必要とすることなく所望する柔軟性 を得寸法の可変を実現する。 The present invention has the above-described structure and has the following excellent effects. The fitting portion 3 of the bearing seal A of the present invention has the protruding bulging portion 4 and the flexible structure portion 3 capable of flexibly deforming the bulging portion 4 as described above. The desired flexibility can be obtained and the dimensions can be changed without requiring a large elastic mass of the sealing body a made of rubber or the like.
【０００７】 このベアリングシールＡの装着においては、図２に示すように、ベアリング１ の外方より該ベアリングシールＡを圧入治具８で押し込むと、ベアリングシール Ａの嵌合部３は嵌合溝２内に順次挿入されていき、その端面が嵌合溝２の嵌合棚 ２１へ接触する。それでもなお圧入力を加えると前記膨出部４の柔構造部５が柔 軟に変形して奥行き寸法を縮ませ、簡単に嵌合溝２の入口を通過して該嵌合部３ の全部分が嵌合溝２内の定位置より深く入り込む。この状態から前記圧入治具８ の圧力を開放すると、該ベアリングシールＡは前記膨出部４のスプリングバック 作用により図１に示すように所定の位置に戻って停まり確実な固定を見せる。When mounting the bearing seal A, as shown in FIG. 2, when the bearing seal A is pushed from the outside of the bearing 1 by the press-fitting jig 8, the fitting portion 3 of the bearing seal A is fitted into the fitting groove. 2 are sequentially inserted into the fitting groove 2, and the end surface thereof contacts the fitting shelf 21 of the fitting groove 2. Nevertheless, when a pressing force is applied, the flexible structure portion 5 of the bulging portion 4 is softly deformed to reduce the depth dimension, and easily passes through the inlet of the fitting groove 2 and the whole portion of the fitting portion 3 Enters deeper than the fixed position in the fitting groove 2. When the pressure of the press-fitting jig 8 is released from this state, the bearing seal A returns to a predetermined position as shown in FIG.
【０００８】[0008]
本考案を実施するに、前記膨出部４及び柔構造部５の形状は、内蔵する補強環 ６の形状によっても左右されるが、図１及び図２に示すような膨出部４の外周側 に柔構造部５を設けた構造の他、図３に示すような膨出部４の挿入接触側を嵌合 溝２への滑り込みの容易な傾斜形状とし、その内周側に柔構造部５を設ける等の 形状も可能となる。この傾斜した膨出部４の形状では、圧入時嵌合棚２１よりは み出し変形させその嵌入を効果的に助ける作用も期待できる。 In implementing the present invention, the shapes of the bulging portion 4 and the flexible structure portion 5 depend on the shape of the built-in reinforcing ring 6, but the outer circumference of the bulging portion 4 as shown in FIGS. In addition to the structure in which the flexible structure portion 5 is provided on the side, the insertion contact side of the bulging portion 4 as shown in FIG. 3 has an inclined shape that allows easy sliding into the fitting groove 2, and the flexible structure portion is provided on the inner peripheral side thereof. A shape such as 5 may be provided. With the shape of the slanted bulging portion 4, it is possible to expect a function of deforming the fitting ledge 21 out of the fitting shelf 21 at the time of press fitting to effectively assist the fitting.
【０００９】 また、より大きい変形を望めば、図４に示す凹凸形状に該柔構造部４を造形す ることもできるなどさまざまな形状的対応が可能である。Further, if a larger deformation is desired, various shape correspondences can be made such that the flexible structure portion 4 can be formed into the uneven shape shown in FIG.
【００１０】[0010]
本考案によると、ベアリングシールＡの装着はベアリング１への一方向からの 圧入で事足り、その固着は、大きい弾性を保持する膨出部４が高いスプリングバ ック効果を見せ高い脱落荷重をもって強固な固着を実現し、シール性、スリップ トルク性、及び脱力性に大きな向上を見た。 また、本考案のベアリングシールＡは嵌合において膨出部４が縮巾してその装 着を助けるのでベアリング１の嵌合溝２を幅広く設ける必要がなく、通常の溝形 状あるいは逆に巾細溝形状に造形することも可能となる。 According to the present invention, the bearing seal A need only be press-fitted into the bearing 1 from one direction, and the fixation of the bearing seal A is strong due to the high spring back effect of the bulging portion 4 that retains a large elasticity and the high drop load. It has achieved excellent adhesion, and has seen significant improvements in sealing properties, slip torque properties, and desorption properties. Further, the bearing seal A of the present invention does not need to have the fitting groove 2 of the bearing 1 wide because the bulging portion 4 narrows the width during fitting and assists its mounting. It is also possible to form a fine groove.
【００１１】[0011]
【図１】本考案の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】本考案の装着状態を示す拡大断面図である。FIG. 2 is an enlarged sectional view showing a mounted state of the present invention.
【図３】本考案の他の実施例を示す断面図である。FIG. 3 is a cross-sectional view showing another embodiment of the present invention.
【図４】本考案の他の実施例を示す部分側面図である。FIG. 4 is a partial side view showing another embodiment of the present invention.
【図５】本考案を使用しない従来例の装着状態を示す断
面図である。FIG. 5 is a cross-sectional view showing a mounted state of a conventional example not using the present invention.
【図６】図５に至る装着での不良状態を示した拡大断面
図である。FIG. 6 is an enlarged cross-sectional view showing a defective state in the mounting up to FIG.
【００１２】[0012]
Ａ ベアリングシール ａ 密封体 １ ベアリング ２ 嵌合溝 ２１ 嵌合棚 ３ 嵌合部 ４ 膨出部 ５ 柔構造部 ６ 補強環 ７ シールリップ ８ 圧入治具 A Bearing seal a Sealing body 1 Bearing 2 Fitting groove 21 Fitting shelf 3 Fitting part 4 Bulging part 5 Flexible structure part 6 Reinforcing ring 7 Seal lip 8 Press fitting jig
Claims (3)
ベアリングシールＡにおいて、前記ベアリング１の嵌合
溝２に挿入される前記ベアリングシールＡの嵌合部３に
軸方向へ膨出する膨出部４を設け、該膨出部４に切り込
み、凹み等の柔構造部５を刻設したことを特徴とするベ
アリングシール。1. A bearing seal A which is mounted on a bearing 1 and hermetically seals the bulge portion which bulges in an axial direction in a fitting portion 3 of the bearing seal A which is inserted into a fitting groove 2 of the bearing 1. 4. A bearing seal, characterized in that it is provided with 4, and a flexible structure portion 5 such as a notch or a recess is cut in the bulging portion 4.
状に設けられたことを特徴とする請求項１記載のベアリ
ングシール。2. The bearing seal according to claim 1, wherein the flexible structure portion 5 is provided on the bulging portion 4 in a ring shape.
に設けられたことを特徴とする請求項１記載のベアリン
グシール。3. The bearing seal according to claim 1, wherein the flexible structure portion 5 is provided on the bulging portion 4 in an uneven shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992042794U JP2577707Y2 (en) | 1992-05-27 | 1992-05-27 | Bearing seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992042794U JP2577707Y2 (en) | 1992-05-27 | 1992-05-27 | Bearing seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0596550U true JPH0596550U (en) | 1993-12-27 |
| JP2577707Y2 JP2577707Y2 (en) | 1998-07-30 |
Family
ID=12645878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992042794U Expired - Fee Related JP2577707Y2 (en) | 1992-05-27 | 1992-05-27 | Bearing seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2577707Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009099059A1 (en) * | 2008-02-05 | 2009-08-13 | Ntn Corporation | Fixation device of rubber seal for sealing ball-and-roller bearing |
| JP2015007465A (en) * | 2013-06-26 | 2015-01-15 | Ntn株式会社 | Seal for bearing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5565725A (en) * | 1978-11-11 | 1980-05-17 | Skf Kugellagerfabriken Gmbh | Balllanddroller bearing |
| JPS61244922A (en) * | 1985-04-18 | 1986-10-31 | ザ トリングトン カムパニ− | Sealed lubricating bearing |
| JPH0441116U (en) * | 1990-08-02 | 1992-04-08 |
-
1992
- 1992-05-27 JP JP1992042794U patent/JP2577707Y2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5565725A (en) * | 1978-11-11 | 1980-05-17 | Skf Kugellagerfabriken Gmbh | Balllanddroller bearing |
| JPS61244922A (en) * | 1985-04-18 | 1986-10-31 | ザ トリングトン カムパニ− | Sealed lubricating bearing |
| JPH0441116U (en) * | 1990-08-02 | 1992-04-08 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009099059A1 (en) * | 2008-02-05 | 2009-08-13 | Ntn Corporation | Fixation device of rubber seal for sealing ball-and-roller bearing |
| JP2015007465A (en) * | 2013-06-26 | 2015-01-15 | Ntn株式会社 | Seal for bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2577707Y2 (en) | 1998-07-30 |
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