JP2586741Y2 - Bearing sealing device - Google Patents

Bearing sealing device

Info

Publication number
JP2586741Y2
JP2586741Y2 JP1993042137U JP4213793U JP2586741Y2 JP 2586741 Y2 JP2586741 Y2 JP 2586741Y2 JP 1993042137 U JP1993042137 U JP 1993042137U JP 4213793 U JP4213793 U JP 4213793U JP 2586741 Y2 JP2586741 Y2 JP 2586741Y2
Authority
JP
Japan
Prior art keywords
seal member
seal
ring
diameter surface
lip
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
Application number
JP1993042137U
Other languages
Japanese (ja)
Other versions
JPH071334U (en
Inventor
寿志 大槻
一宏 馬場
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTN Corp
Original Assignee
NTN Corp
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 by NTN Corp filed Critical NTN Corp
Priority to JP1993042137U priority Critical patent/JP2586741Y2/en
Publication of JPH071334U publication Critical patent/JPH071334U/en
Application granted granted Critical
Publication of JP2586741Y2 publication Critical patent/JP2586741Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/045—Mounting or replacing seals
    • 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
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
    • 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
    • F16C33/7896—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members with two or more discrete sealings arranged in series
    • 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
    • F16C19/06—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 with a single row or balls
    • 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
    • F16C2326/06—Drive shafts
    • 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
    • F16C33/7889—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)

Description

【考案の詳細な説明】[Detailed description of the invention]

【０００１】[0001]

【産業上の利用分野】この考案は軸受の密封装置に関
し、特に転動体の一側において内輪と外輪との間に内側
シール部材と外側シール部材の２枚のシール部材を装着
した密封装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device for a bearing, and more particularly to a sealing device in which two seal members, an inner seal member and an outer seal member, are mounted between an inner ring and an outer ring on one side of a rolling element. It is.

【０００２】[0002]

【従来の技術】自動車のプロペラシャフト等の軸受にお
いては、塵埃や雨水にさらされることから、その密封装
置として、転動体の片側において内輪と外輪との間に内
側シール部材と外側シール部材の２枚、転動体の両側に
おいて合計４枚のシール部材が装着される。2. Description of the Related Art Since a bearing such as a propeller shaft of an automobile is exposed to dust and rainwater, a sealing device is provided between one inner rolling member and one outer rolling member on one side of a rolling element. A total of four seal members are mounted on both sides of the rolling element.

【０００３】図１５は従来の密封装置の一例であり、内
側シール部材１と外側シール部材２をそれぞれ芯金３、
４とそれと一体化されたシールゴム５、６とにより構成
し、内側シール部材１は、そのシールゴム５の外周縁に
形成した装着部７を外輪８の内径面のシール溝９に嵌入
し、またそのシールゴム５の内周縁に形成したリップ１
０を内輪１１の外径面に押圧し、その面をシールするよ
うにしている。外側シール部材２は、そのシールゴム６
の内周縁に形成した装着部１２を内輪１１の外径面のシ
ール溝１３に嵌入し、またそのシールゴム６の内周縁に
形成したリップ１４を外輪８の内径面に押圧し、その面
をシールするようにしている。FIG. 15 shows an example of a conventional sealing device.
The inner seal member 1 is formed by fitting a mounting portion 7 formed on the outer peripheral edge of the seal rubber 5 into a seal groove 9 on the inner diameter surface of the outer ring 8. Lip 1 formed on inner peripheral edge of seal rubber 5
0 is pressed against the outer diameter surface of the inner ring 11 to seal that surface. The outer sealing member 2 has a sealing rubber 6.
The fitting portion 12 formed on the inner peripheral edge of the inner ring 11 is fitted into a seal groove 13 on the outer peripheral surface of the inner ring 11, and the lip 14 formed on the inner peripheral edge of the seal rubber 6 is pressed against the inner peripheral surface of the outer ring 8 to seal the surface. I am trying to do it.

【０００４】上記の内側シール部材１及び外側シール部
材２は、これを組付ける際はそれぞれ内側から順に１枚
ずつ装着される。[0004] When assembling the inner seal member 1 and the outer seal member 2, each of them is mounted one by one from the inside.

【０００５】[0005]

【考案が解決しようとする課題】しかしながら、内側シ
ール部材１と外側シール部材２を上述のように１枚ずつ
装着することは組立工数が多く、また組立設備が複雑と
なって製品のコスト高の原因となる。However, mounting the inner seal member 1 and the outer seal member 2 one by one as described above requires a large number of assembling man-hours, complicates the assembling equipment, and increases the cost of the product. Cause.

【０００６】そこで、この考案は内外２枚のシール部材
を予め一体に組合わせておき、２枚のシール部材を１度
に装着できるようにして、上述の問題点を解決すること
を目的とする。The present invention has been made to solve the above-mentioned problem by combining two inner and outer seal members in advance so that the two seal members can be mounted at a time. .

【０００７】[0007]

【課題を解決するための手段】上記の目的を達成するた
めの第１の手段は、転動体を介在した内輪と外輪との間
に内側シール部材と外側シール部材を装着し、上記各シ
ール部材を芯金とこれと一体のシールゴムとにより構成
し、いずれか一方のシール部材を外輪内径面に装着して
内輪外径面をシールすると共に、他方のシール部材を内
輪外径面に装着して外輪内径面をシールするようにした
軸受の密封装置において、上記内側シール部材の芯金に
外向きの屈曲部を設け、上記外側シール部材のシールゴ
ムのリップの根元部に上記内側シール部材の屈曲部に合
致する嵌合部を設け、上記内側シール部材の屈曲部の屈
曲高さを、上記嵌合部及びリップの根元部が嵌る高さに
設定した構成としたものである。A first means for achieving the above object is to mount an inner seal member and an outer seal member between an inner ring and an outer ring with a rolling element interposed therebetween, and to provide each of the above seal members. Is composed of a cored bar and a seal rubber integral therewith, and one of the seal members is attached to the inner ring outer diameter surface to seal the inner ring outer diameter surface, and the other seal member is attached to the inner ring outer diameter surface. In a bearing sealing device adapted to seal an inner surface of an outer ring, an outward bent portion is provided on a core metal of the inner seal member, and a bent portion of the inner seal member is provided at a root portion of a lip of a seal rubber of the outer seal member. And the bent height of the bent portion of the inner seal member is set to a height at which the fitting portion and the base of the lip fit.

【０００８】第２の手段は、転動体を介在した内輪と外
輪との間に内側シール部材と外側シール部材を装着し、
上記各シール部材を芯金とこれと一体のシールゴムとに
より構成し、いずれか一方のシール部材を外輪内径面に
装着すると共に、他方のシール部材を内輪外径面に装着
してなる軸受の密封装置において、上記内側シール部材
の芯金に外向きの屈曲部を設け、その屈曲部の外径面を
外輪内径面又は内輪外径面に嵌入して装着し、上記内側
シール部材のリップを他方の軌道輪の対向面に押圧し、
上記外側シール部材のリップを上記屈曲部に押圧させた
構成としたものである。The second means is to mount an inner seal member and an outer seal member between an inner ring and an outer ring with rolling elements interposed therebetween,
Each of the above-mentioned seal members is constituted by a core metal and a seal rubber integral therewith, and one of the seal members is mounted on the inner ring inner diameter surface, and the other seal member is mounted on the inner ring outer diameter surface. In the apparatus, an outward bent portion is provided on the core metal of the inner seal member, the outer diameter surface of the bent portion is fitted to the outer ring inner diameter surface or the inner ring outer diameter surface, and the lip of the inner seal member is connected to the other. Of the bearing ring
The lip of the outer seal member is pressed against the bent portion.

【０００９】第３の手段は、転動体を介在した内輪と外
輪との間に内側シール部材と外側シール部材を装着し、
上記内側シール部材を金属環により構成し、外側シール
部材を芯金とこれと一体のシールゴムとにより構成し、
いずれか一方のシール部材を外輪内径面に装着すると共
に、他方のシール部材を内輪外径面に装着してなる軸受
の密封装置において、上記内側シール部材の金属環に外
向きの屈曲部を設け、その屈曲部の外径面を外輪内径面
又は内輪外径面に嵌入して装着し、上記内側シール部材
内径面とを他方の軌道輪との間に間隙を設け、上記外側
シール部材の複数のリップを上記内側シール部材に押圧
させた構成としたものである。The third means is to mount an inner seal member and an outer seal member between an inner ring and an outer ring with rolling elements interposed therebetween,
The inner seal member is constituted by a metal ring, and the outer seal member is constituted by a core metal and a seal rubber integrated therewith,
In a bearing sealing device in which one of the seal members is mounted on the inner ring outer diameter surface and the other seal member is mounted on the inner ring outer diameter surface, an outward bent portion is provided on the metal ring of the inner seal member. The outer diameter surface of the bent portion is fitted and mounted on the inner diameter surface of the outer ring or the outer diameter surface of the inner ring, a gap is provided between the inner diameter surface of the inner seal member and the other race, and a plurality of outer seal members are provided. Is pressed against the inner seal member.

【００１０】[0010]

【作用】上記第１の手段に係る軸受の密封装置は、軸受
に装着する前は、内側シール部材の芯金の屈曲部の内側
に外側シール部材の嵌合部及びリップの根元部が嵌合さ
れ、両方のシール部材が一体に組合わされた状態にあ
る。これを適当な圧入治具を用いて軸受の内輪と外輪と
の間に圧入すると、内側シール部材は、外側シール部材
から分離され、内輪又は外輪のいずれか一方の軌道輪で
あって転動体に近い方（即ち、内側）に装着部を有する
ものに装着され、そのシールゴムのリップは他方の軌道
輪のシール面に押圧され、シールを図る。外側シール部
材は、転動体から遠い方（即ち、外側）に装着部を有す
る軌道輪に装着され、そのシールゴムのリップは他方の
軌道輪のシール面に押圧され、シールを図る。In the bearing sealing device according to the first means, before the bearing is mounted on the bearing, the fitting portion of the outer seal member and the root portion of the lip fit inside the bent portion of the core bar of the inner seal member. Thus, both seal members are in a state of being integrally combined. When this is press-fitted between the inner ring and the outer ring of the bearing using an appropriate press-fitting jig, the inner seal member is separated from the outer seal member, and is one of the inner ring or the outer ring raceway and is used as a rolling element. It is mounted on the one having a mounting portion on the near side (that is, inside), and the lip of the sealing rubber is pressed against the sealing surface of the other bearing ring to achieve sealing. The outer seal member is mounted on a bearing ring having a mounting portion farther (ie, outside) from the rolling elements, and a lip of the seal rubber is pressed against a sealing surface of the other bearing ring to achieve sealing.

【００１１】また、前記の第２の手段に係る軸受の密封
装置においても、軸受に装着する前は、内側シール部材
の芯金の屈曲部の内側に外側シール部材リップ部が縮径
して嵌合され、両方のシール部材が一体に組合わされ
る。これを適当な圧入治具を用いて軸受の内輪と外輪と
の間に圧入すると、内側シール部材は、内輪又は外輪の
いずれか一方の軌道輪であって転動体に近い方（即ち内
側）に装着部を有するものに装着され、その装着部と芯
金外径面との間でシールを図り、またそのシールゴムの
リップは他方の軌道輪のシール面に押圧され、シールを
図る。また、外側シール部材は、転動体から遠い方（即
ち、外側）に装着部を有する軌道輪に装着され、そのシ
ールゴムのリップは内側シール部材の芯金に押圧され、
シールを図る。Further, in the bearing sealing device according to the second means, the outer sealing member lip is reduced in diameter and fitted inside the bent portion of the core metal of the inner sealing member before the bearing is mounted on the bearing. And the two seal members are combined together. When this is press-fitted between the inner ring and the outer ring of the bearing by using an appropriate press-fitting jig, the inner seal member is located on one of the inner and outer races and is closer to the rolling element (that is, on the inner side). It is mounted on the one having the mounting part, and seals between the mounting part and the outer diameter surface of the core metal, and the lip of the sealing rubber is pressed against the sealing surface of the other race to seal. Further, the outer seal member is mounted on a raceway having a mounting portion farther from the rolling element (that is, on the outer side), and a lip of the seal rubber is pressed against the core metal of the inner seal member,
Attach the seal.

【００１２】前記の第３の手段に係る軸受の密封装置に
おいても、軸受に装着する前は、内側シール部材を構成
する金属環の屈曲部の内側に外側シール部材が嵌合さ
れ、一体に組合わされる。これを圧入治具によって装着
する作用は前述の場合と同様である。但し、この場合は
内側シール部材の内径面と相手側軌道輪との間には間隙
が存在し、シール作用はないが、外側シール部材に複数
のリップが設けられ、各リップが内側シール部材に押圧
されることによりシールが図られる。Also in the bearing sealing device according to the third means, before the bearing is mounted on the bearing, the outer seal member is fitted inside the bent portion of the metal ring constituting the inner seal member, and is integrally assembled. Are combined. The operation of mounting this with a press-fitting jig is the same as in the case described above. However, in this case, there is a gap between the inner diameter surface of the inner seal member and the mating bearing ring, and there is no sealing action, but a plurality of lips are provided on the outer seal member, and each lip is provided on the inner seal member. The seal is achieved by being pressed.

【００１３】[0013]

【実施例】図１から図５に示した第１実施例は、上述の
第１の手段に係る軸受の密封装置の実施例である。この
密封装置は、内側シール部材２１と外側シール部材２２
の組合せからなる。これらのシール部材２１、２２はそ
れぞれ芯金２３、２４及びそのまわりに一体化されたシ
ールゴム２５、２６とから成る。内側シール部材２１は
シールゴム２５の外周縁に装着部２７が形成され、その
内周縁にリップ２８が形成される。外側シール部材２２
は、シールゴム２６の外周縁にリップ２９が形成され、
その内周縁に装着部３０が形成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment shown in FIGS. 1 to 5 is an embodiment of a bearing sealing device according to the above-described first means. The sealing device includes an inner seal member 21 and an outer seal member 22.
Combination of These sealing members 21 and 22 are made up of cored bars 23 and 24 and sealing rubbers 25 and 26 integrated therearound. The inner seal member 21 has a mounting portion 27 formed on an outer peripheral edge of a seal rubber 25 and a lip 28 formed on an inner peripheral edge thereof. Outer seal member 22
Has a lip 29 formed on the outer peripheral edge of the seal rubber 26,
The mounting portion 30 is formed on the inner peripheral edge.

【００１４】上記の内側シール部材２１の装着部２７
は、軸受の外輪３１の内径面に設けられた内シール溝３
２に嵌着され、またそのリップ２８は内輪３３の外径面
に押圧され、その面のシールを図る。The mounting portion 27 of the inner seal member 21 described above.
Are inner seal grooves 3 provided on the inner diameter surface of the outer ring 31 of the bearing.
2 and its lip 28 is pressed against the outer diameter surface of the inner ring 33 to seal the surface.

【００１５】上記の外側シール部材２２の装着部３０
は、内輪３３の外径面に設けられた外シール溝３４（こ
の外シール溝３４は前記の外輪３１の内シール溝３２よ
りも外側、即ち転動体３５から遠い方に設けられる。）
に嵌着される。またリップ２９は外輪３１の内径面に押
圧され、その面のシールを図る。The mounting portion 30 for the outer seal member 22 described above.
Is an outer seal groove 34 provided on the outer diameter surface of the inner ring 33 (the outer seal groove 34 is provided outside the inner seal groove 32 of the outer ring 31, that is, farther from the rolling element 35).
Is fitted to. Further, the lip 29 is pressed against the inner diameter surface of the outer ring 31 to seal the surface.

【００１６】内側シール部材２１の芯金２３は、外周部
分に外向きの屈曲部３６を有する。また、外側シール部
材２２のシールゴム２６の外周縁に、前記屈曲部３６の
内径面に合致する外径を有する嵌合部３７が形成され、
その嵌合部３７の外側コーナ部分に前記のリップ２９の
根元部分が一体化される。The metal core 23 of the inner seal member 21 has an outwardly bent portion 36 on the outer peripheral portion. Further, a fitting portion 37 having an outer diameter matching the inner diameter surface of the bent portion 36 is formed on the outer peripheral edge of the seal rubber 26 of the outer seal member 22,
The root portion of the lip 29 is integrated with the outer corner portion of the fitting portion 37.

【００１７】前記の屈曲部３６の屈曲高さは、上記の嵌
合部３７を越えてリップ２９の根元部分まで嵌る高さに
形成される（図２参照）。The bending height of the bent portion 36 is formed so as to fit over the fitting portion 37 to the root of the lip 29 (see FIG. 2).

【００１８】上記の内側シール部材２１と外側シール部
材２２は、軸受に装着される前は、図２に示すように内
側シール２１の芯金２３の屈曲部３６の内側に外側シー
ル部材２２の嵌合部３７及びリップ２９の根元部を押込
むことにより一体に組合わされる。このとき、リップ２
９はその根元部が屈曲部３６で押さえられるため、図示
のように縮径方向に弾性変形して内側に屈曲される。Before the inner seal member 21 and the outer seal member 22 are mounted on the bearing, the outer seal member 22 is fitted inside the bent portion 36 of the metal core 23 of the inner seal 21 as shown in FIG. The mating portion 37 and the base of the lip 29 are pushed together so that they are combined together. At this time, lip 2
The base 9 is bent inward by being elastically deformed in the diameter-reducing direction as shown in the figure, since the base is pressed by the bent portion 36.

【００１９】上記の両シール部材２１、２２の組立体を
軸受の内輪３３と外輪３１との間に装着するには、図２
に示すような圧入治具３８を用いる。この圧入治具３８
は、内側シール部材２１の外端面を押圧する外周押圧部
３９と、外側シール部材２２の中央部分を押圧する内周
押圧部４１を有する。この内周押圧部４１の突出高さは
外周押圧部３９の突出高さより低く設定され、外周押圧
部３９が内側シール部材２１の外端面に当った状態で、
内周押圧部４１は外側シール部材２２に当たらず、内側
シール部材２１を一定以上押込んだ状態（図３の一定鎖
線参照）ではじめてその外側シール部材２２の外端面に
当たる。In order to mount the assembly of the two seal members 21 and 22 between the inner ring 33 and the outer ring 31 of the bearing, FIG.
The press-fitting jig 38 shown in FIG. This press-fitting jig 38
Has an outer peripheral pressing portion 39 that presses the outer end surface of the inner seal member 21 and an inner peripheral pressing portion 41 that presses a central portion of the outer seal member 22. The protruding height of the inner peripheral pressing portion 41 is set lower than the protruding height of the outer peripheral pressing portion 39, and in a state where the outer peripheral pressing portion 39 hits the outer end face of the inner seal member 21,
The inner peripheral pressing portion 41 does not hit the outer seal member 22, but hits the outer end surface of the outer seal member 22 only when the inner seal member 21 is pushed in by a certain amount or more (see a constant chain line in FIG. 3).

【００２０】上述のごとき圧入治具３８を用いて、内側
シール部材２１と外側シール部材２２の組立体を内輪３
３と外輪３１との間に装着するには、まず図２のように
圧入治具３８の外周押圧部３９を内側シール部材２１の
外端面に当て、これを押圧する。Using the press fitting jig 38 as described above, the assembly of the inner seal member 21 and the outer seal member 22 is
In order to mount between the outer ring 3 and the outer ring 31, first, as shown in FIG. 2, the outer peripheral pressing portion 39 of the press-fitting jig 38 is applied to the outer end surface of the inner seal member 21 and pressed.

【００２１】そうすると、図３に示すように、内側シー
ル部材２１の装着部２７が弾性変形して外輪３１の内径
面に押込まれ、これと同時に外側シール部材２２も一体
に移動してその装着部３０が内輪３３の外径部外端面に
当たる。Then, as shown in FIG. 3, the mounting portion 27 of the inner seal member 21 is elastically deformed and is pushed into the inner diameter surface of the outer race 31, and at the same time, the outer seal member 22 also moves integrally to mount the mounting portion. 30 corresponds to the outer end surface of the outer diameter portion of the inner ring 33.

【００２２】更に圧入治具３８が前進すると、内側シー
ル部材２１が外側シール部材２２から離れて内方に移動
し、内周押圧部４１が外側シール部材２２の中央部に当
たる（図３の一点鎖線参照）。When the press-fitting jig 38 further advances, the inner seal member 21 moves inward away from the outer seal member 22, and the inner peripheral pressing portion 41 hits the center of the outer seal member 22 (the dashed line in FIG. 3). reference).

【００２３】圧入治具３８が更に進むと、図４に示すよ
うに、外側シール部材２２の装着部３０が弾性変形し
て、内輪３３の内径面に押込まれる。また、外側シール
部材２２の装着部３０は内輪３３の外シール溝３４に嵌
着され、同時に内側シール部材２１の装着部２７は外輪
３１の内シール溝３２に嵌着される。このとき、内側シ
ール部材２１のリップ２８は内輪３３の内径面に押圧さ
れ、シールを図る。When the press-fitting jig 38 further advances, the mounting portion 30 of the outer seal member 22 is elastically deformed and pushed into the inner diameter surface of the inner ring 33 as shown in FIG. The mounting portion 30 of the outer seal member 22 is fitted in the outer seal groove 34 of the inner ring 33, and the mounting portion 27 of the inner seal member 21 is fitted in the inner seal groove 32 of the outer ring 31. At this time, the lip 28 of the inner seal member 21 is pressed against the inner diameter surface of the inner ring 33 to achieve sealing.

【００２４】次に、圧入治具３８を後退させると、図１
に示すように、外側シール部材２２のリップ２９が外輪
３１の内径面に押圧され、シールを図る。Next, when the press-fitting jig 38 is retracted, FIG.
As shown in (2), the lip 29 of the outer seal member 22 is pressed against the inner diameter surface of the outer ring 31 to achieve sealing.

【００２５】なお、図５に示すように、内側シール部材
２１の外端面と、外側シール部材２２の内端面に、それ
ぞれのシールゴム２５、２６に相互に係合する爪４２、
４３を設け、両シール部材２１、２２の組合せが確実に
なるようにしてもよい。As shown in FIG. 5, the outer end surface of the inner seal member 21 and the inner end surface of the outer seal member 22 are provided with claws 42, which are mutually engaged with the respective seal rubbers 25, 26.
43 may be provided so that the combination of the two seal members 21 and 22 is ensured.

【００２６】次に、図６から図１１に示した第２実施例
は、前述の第２の手段の実施例である。この場合の内側
シール部材４５は、断面逆Ｌ形の芯金４６と内周縁にシ
ールゴム４７を一体化したものであり、芯金４６の屈曲
部４８は外側シール部材４９の外端面を越える幅を有す
る。上記シールゴム４７の内周縁にリップ５１が形成さ
れる。Next, a second embodiment shown in FIGS. 6 to 11 is an embodiment of the above-mentioned second means. In this case, the inner seal member 45 is formed by integrating a core metal 46 having an inverted L-shaped cross section and a seal rubber 47 on the inner peripheral edge, and the bent portion 48 of the core metal 46 has a width exceeding the outer end surface of the outer seal member 49. Have. A lip 51 is formed on the inner peripheral edge of the seal rubber 47.

【００２７】外側シール部材４９は芯金５２にシールゴ
ム５３を一体化したものであり、シールゴム５３の外周
縁にリップ５４が形成され、内周縁に装着部５５が形成
される。The outer seal member 49 is obtained by integrating a seal rubber 53 with a cored bar 52. A lip 54 is formed on an outer peripheral edge of the seal rubber 53, and a mounting portion 55 is formed on an inner peripheral edge.

【００２８】軸受に装着する前の状態では図６に示すよ
うに、内側シール部材４５のリップ５１が外側シール部
材４９の屈曲部５６上に載り、また外側シール部材４９
のリップ５１が内側シール部材４５の屈曲部４８の内径
面に押圧される。Before mounting on the bearing, as shown in FIG. 6, the lip 51 of the inner seal member 45 rests on the bent portion 56 of the outer seal member 49, and the outer seal member 49
Is pressed against the inner diameter surface of the bent portion 48 of the inner seal member 45.

【００２９】上記の内側シール部材４５と外側シール部
材４９の組立体は、適当な圧入治具５７により内輪３３
と外輪３１との間に圧入される（図７参照）。この場合
内側シール部材４５は外側シール部材４９に対して相対
的に前進して、それぞれ所定の内シール溝５８及び外シ
ール溝５９に嵌着される。このとき内側シール部材４５
の芯金４６が外輪３１の内径面に密着してシールが図ら
れ、またリップ５１が内輪３３の外径面に押圧されシー
ルが図られる。The assembly of the inner seal member 45 and the outer seal member 49 is assembled with the inner ring 33 by a suitable press-in jig 57.
And the outer ring 31 (see FIG. 7). In this case, the inner seal member 45 advances relatively to the outer seal member 49 and is fitted into predetermined inner seal grooves 58 and outer seal grooves 59, respectively. At this time, the inner sealing member 45
The core metal 46 is tightly fitted to the inner diameter surface of the outer ring 31 to achieve sealing, and the lip 51 is pressed against the outer diameter surface of the inner ring 33 to achieve sealing.

【００３０】また、外側シール部材４９のリップ５４が
内側シール部材４５の芯金４６の屈曲部４８の内径面と
の間でシールが図られる。両シール部材４５、４９を装
着した状態で両シール部材４５、４９は、図７に示すよ
うに、外側シール部材４９のリップ５４が内側シール部
材４５の屈曲部４８に押圧され、シールを図る。Further, sealing is achieved between the lip 54 of the outer seal member 49 and the inner diameter surface of the bent portion 48 of the metal core 46 of the inner seal member 45. With the two seal members 45, 49 mounted, the lip 54 of the outer seal member 49 is pressed against the bent portion 48 of the inner seal member 45 to seal the two seal members 45, 49, as shown in FIG.

【００３１】なお、図８に示すように、内側シール部材
４５のシールゴム４７の外端面に断面台形の突起部６１
を設け、その突起部６１と部分的に嵌り合う凹所６２を
外側シール部材４９に設けることにより、軸受に装着す
る前の段階での両シール部材４５、４９の一体化をより
確実にすることができる。As shown in FIG. 8, a protrusion 61 having a trapezoidal cross section is formed on the outer end surface of the seal rubber 47 of the inner seal member 45.
By providing the outer sealing member 49 with a recess 62 that partially fits with the projection 61, the integration of the two sealing members 45 and 49 at a stage before mounting on the bearing is further ensured. Can be.

【００３２】また、一層シール効果を増すために、図９
に示すように、外側シール部材４９のシールゴム５３の
内面にサイドリップ６３を設け、これを内側シール部材
４５の芯金４６に押圧させるようにしてもよい。In order to further enhance the sealing effect, FIG.
As shown in (1), a side lip 63 may be provided on the inner surface of the seal rubber 53 of the outer seal member 49, and the side lip 63 may be pressed against the core metal 46 of the inner seal member 45.

【００３３】図１０に示したものは内側シール部材４５
のシールゴム４７にサイドリップ６４を設け、これを外
側シール部材の芯金５６に押圧させたものである。FIG. 10 shows the inner sealing member 45.
The seal rubber 47 is provided with a side lip 64, which is pressed against the core metal 56 of the outer seal member.

【００３４】図１１に示したものは、外側シール部材４
９のシールゴム５３の内面にラジアル方向に突き出した
ラジアルリップ６５を設け、これを内側シール部材４５
の屈曲部４８に押圧させたものである。FIG. 11 shows the outer sealing member 4.
A radial lip 65 protruding in the radial direction is provided on the inner surface of the seal rubber 53 of FIG.
Is pressed against the bent portion 48 of the second member.

【００３５】次に、図１２から図１４に示した第３実施
例は、前述の第３の手段の実施例である。この場合は、
内側シール部材４５を断面逆Ｌ形の屈曲部４８を有する
金属環のみにより構成し、その内径面と内輪３３外径面
との間に間隙Ｇを設けている。Next, a third embodiment shown in FIGS. 12 to 14 is an embodiment of the above-described third means. in this case,
The inner seal member 45 is formed only of a metal ring having a bent portion 48 having an inverted L-shaped cross section, and a gap G is provided between the inner diameter surface and the outer diameter surface of the inner ring 33.

【００３６】外側シール部材４９は、前述の第２実施例
と同様に、芯金５２とシールゴム５３とから成り、その
構成に加えてそのシールゴム５３に３枚のサイドリップ
６３を設け、各サイドリップ６３を前記の内側シール部
材４５に押圧したものである。また、図１３に示したも
のは、屈曲の方向が異なる２枚のサイドリップ６３を設
けたものである。図１４に示したものは２枚のサイドリ
ップ６３と１枚のラジアルリップ６５とを設けたもので
ある。The outer sealing member 49 comprises a cored bar 52 and a sealing rubber 53 in the same manner as in the above-described second embodiment. 63 is pressed against the inner seal member 45 described above. The one shown in FIG. 13 is provided with two side lips 63 having different bending directions. The one shown in FIG. 14 is provided with two side lips 63 and one radial lip 65.

【００３７】上記の図１２から図１４に示したものは、
装着以前の状態では、前記の各実施例と同様に、内側シ
ール部材４５の内面に押し込まれて一体化されている
が、装着時は圧入治具を用いて内輪３３と外輪３１の間
に押込んで装着する。What is shown in FIG. 12 to FIG.
In a state before mounting, as in the above-described embodiments, the inner seal member 45 is pressed into the inner surface of the inner seal member 45 and integrated therewith. And attach it.

【００３８】なお、以上述べたいずれの実施例について
も、内側シール部材２１、４５を内輪３３に装着し、外
側シール部材２２、４９を外輪３１に装着するようにし
てもよい。In any of the embodiments described above, the inner seal members 21 and 45 may be mounted on the inner race 33, and the outer seal members 22 and 49 may be mounted on the outer race 31.

【００３９】[0039]

【考案の効果】以上のように、この考案は内側シール部
材と外側シール部材が軸受に装着する前の段階では一体
に組合わされており、圧入時に内外に分離するか、又は
所定の間隔だけ広がって、それぞれ内輪及び外輪に装着
される。従って、この考案によれば、一度の組立作業で
一挙に２枚のシール部材を軸受に装着することができる
ので、作業能率が向上し、製品コストの低減に資するこ
とができる。As described above, in the present invention, before the inner seal member and the outer seal member are mounted on the bearing, the inner seal member and the outer seal member are integrally combined with each other. And attached to the inner ring and the outer ring, respectively. Therefore, according to the present invention, two seal members can be mounted on the bearing at once by one assembly work, so that work efficiency can be improved and product cost can be reduced.

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

【図１】第１実施例の一部を示す断面図FIG. 1 is a sectional view showing a part of a first embodiment.

【図２】同上の装着作業の手順を示す断面図FIG. 2 is a sectional view showing a procedure of the mounting operation of the above.

【図３】同上の装着作業の手順を示す断面図FIG. 3 is a sectional view showing the procedure of the mounting operation of the above.

【図４】同上の装着作業の手順を示す断面図FIG. 4 is a sectional view showing the procedure of the mounting operation of the above.

【図５】同上の変形例の一部を示す断面図FIG. 5 is a sectional view showing a part of a modification of the above.

【図６】第２実施例の一部を示す断面図FIG. 6 is a sectional view showing a part of the second embodiment.

【図７】同上の装着作業中の断面図FIG. 7 is a cross-sectional view during the mounting operation of the above.

【図８】同上の変形例の一部を示す断面図FIG. 8 is a sectional view showing a part of a modification of the above.

【図９】同上の変形例の一部を示す断面図FIG. 9 is a sectional view showing a part of a modification of the above.

【図１０】同上の変形例の一部を示す断面図FIG. 10 is a sectional view showing a part of a modification of the above.

【図１１】同上の変形例の一部を示す断面図FIG. 11 is a sectional view showing a part of a modification of the above.

【図１２】第３実施例の一部を示す断面図FIG. 12 is a sectional view showing a part of the third embodiment.

【図１３】同上の変形例の一部を示す断面図FIG. 13 is a sectional view showing a part of a modification of the above.

【図１４】同上の変形例の一部を示す断面図FIG. 14 is a sectional view showing a part of a modification of the above.

【図１５】従来例の一部を示す断面図FIG. 15 is a sectional view showing a part of a conventional example.

【符号の説明】[Explanation of symbols]

２１ 内側シール部材 ２２ 外側シール部材 ２３ 芯金 ２４ 芯金 ２５ シールゴム ２６ シールゴム ２７ 装着部 ２８ リップ ２９ リップ ３０ 装着部 ３１ 外輪 ３２ 内シール溝 ３３ 内輪 ３４ 外シール溝 ３５ 転動体 ３６ 屈曲部 ３７ 嵌合部 ３８ 圧入治具 ３９ 外周押圧部 ４１ 内周押圧部 ４２ 爪 ４３ 爪 ４５ 内側シール部材 ４６ 芯金 ４７ シールゴム ４８ 屈曲部 ４９ 外側シール部材 ５１ リップ ５２ 芯金 ５３ シールゴム ５４ リップ ５５ 装着部 ５６ 屈曲部 ５７ 圧入治具 ５８ 内シール溝 ５９ 外シール溝 ６１ 突起部 ６２ 凹所 ６３ サイドリップ ６４ サイドリップ ６５ ラジアルリップ REFERENCE SIGNS LIST 21 inner seal member 22 outer seal member 23 core metal 24 core metal 25 seal rubber 26 seal rubber 27 mounting portion 28 lip 29 lip 30 mounting portion 31 outer ring 32 inner seal groove 33 inner ring 34 outer seal groove 35 rolling element 36 bending portion 37 fitting portion 38 Press-fitting jig 39 Outer circumference pressing part 41 Inner circumference pressing part 42 Claw 43 Claw 45 Inner seal member 46 Core bar 47 Seal rubber 48 Bent unit 49 Outer seal member 51 Lip 52 Core bar 53 Seal rubber 54 Lip 55 Mounting unit 56 Bent unit 57 Press-fit Jig 58 Inner seal groove 59 Outer seal groove 61 Projection 62 Recess 63 Side lip 64 Side lip 65 Radial lip

Claims (3)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項１】 転動体を介在した内輪と外輪との間に内
側シール部材と外側シール部材を装着し、上記各シール
部材を芯金とこれと一体のシールゴムとにより構成し、
いずれか一方のシール部材を外輪内径面に装着して内輪
外径面をシールすると共に、他方のシール部材を内輪外
径面に装着して外輪内径面をシールするようにした軸受
の密封装置において、上記内側シール部材の芯金に外向
きの屈曲部を設け、上記外側シール部材のシールゴムの
リップの根元部に上記内側シール部材の屈曲部に合致す
る嵌合部を設け、上記内側シール部材の屈曲部の屈曲高
さを、上記嵌合部及びリップの根元部が嵌る高さに設定
したことを特徴とする軸受の密封装置。1. An inner seal member and an outer seal member are mounted between an inner race and an outer race with a rolling element interposed therebetween, and each of the seal members is constituted by a core metal and a seal rubber integral therewith,
A bearing sealing device in which one of the seal members is mounted on the outer ring inner diameter surface to seal the inner ring outer diameter surface, and the other seal member is mounted on the inner ring outer diameter surface to seal the outer ring inner diameter surface. An outer bent portion is provided on the core metal of the inner seal member, and a fitting portion that matches the bent portion of the inner seal member is provided at a root of a seal rubber lip of the outer seal member. A sealing device for a bearing, wherein a bending height of the bending portion is set to a height at which the fitting portion and the base of the lip fit. 【請求項２】 転動体を介在した内輪と外輪との間に内
側シール部材と外側シール部材を装着し、上記各シール
部材を芯金とこれと一体のシールゴムとにより構成し、
いずれか一方のシール部材を外輪内径面に装着すると共
に、他方のシール部材を内輪外径面に装着してなる軸受
の密封装置において、上記内側シール部材の芯金に外向
きの屈曲部を設け、その屈曲部の外径面を外輪内径面又
は内輪外径面に嵌入して装着し、上記内側シール部材の
リップを他方の軌道輪の対向面に押圧し、上記外側シー
ル部材のリップを上記屈曲部に押圧させたことを特徴と
する軸受の密封装置。2. An inner seal member and an outer seal member are mounted between an inner race and an outer race with a rolling element interposed therebetween, and each of the seal members is constituted by a core metal and a seal rubber integral therewith,
In a bearing sealing device in which one of the seal members is mounted on the inner ring outer diameter surface and the other seal member is mounted on the inner ring outer diameter surface, an outer bent portion is provided on the core metal of the inner seal member. The outer diameter surface of the bent portion is fitted and mounted on the inner diameter surface of the outer ring or the outer diameter surface of the inner ring, and the lip of the inner seal member is pressed against the opposing surface of the other race, and the lip of the outer seal member is fixed as described above. A bearing sealing device characterized by being pressed against a bent portion. 【請求項３】 転動体を介在した内輪と外輪との間に内
側シール部材と外側シール部材を装着し、上記内側シー
ル部材を金属環により構成し、外側シール部材を芯金と
これと一体のシールゴムとにより構成し、いずれか一方
のシール部材を外輪内径面に装着すると共に、他方のシ
ール部材を内輪外径面に装着してなる軸受の密封装置に
おいて、上記内側シール部材の金属環に外向きの屈曲部
を設け、その屈曲部の外径面を外輪内径面又は内輪外径
面に嵌入して装着し、上記内側シール部材内径面とを他
方の軌道輪との間に間隙を設け、上記外側シール部材の
複数のリップを上記内側シール部材に押圧させたことを
特徴とする軸受の密封装置。3. An inner seal member and an outer seal member are mounted between an inner race and an outer race with a rolling element interposed therebetween, the inner seal member is formed of a metal ring, and the outer seal member is formed of a metal core and an integral part thereof. In a bearing sealing device in which one of the seal members is mounted on the inner diameter surface of the outer ring, and the other seal member is mounted on the outer diameter surface of the inner ring, the outer ring is formed on the metal ring of the inner seal member. Orientation bent portion, the outer diameter surface of the bent portion is fitted and mounted on the outer ring inner diameter surface or the inner ring outer diameter surface, and a gap is provided between the inner seal member inner diameter surface and the other raceway, A sealing device for a bearing, wherein a plurality of lips of the outer seal member are pressed against the inner seal member.
JP1993042137U 1992-07-30 1993-07-30 Bearing sealing device Expired - Fee Related JP2586741Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1993042137U JP2586741Y2 (en) 1992-07-30 1993-07-30 Bearing sealing device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4-53590 1992-07-30
JP5359092 1992-07-30
JP1993042137U JP2586741Y2 (en) 1992-07-30 1993-07-30 Bearing sealing device

Publications (2)

Publication Number Publication Date
JPH071334U JPH071334U (en) 1995-01-10
JP2586741Y2 true JP2586741Y2 (en) 1998-12-09

Family

ID=26381789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1993042137U Expired - Fee Related JP2586741Y2 (en) 1992-07-30 1993-07-30 Bearing sealing device

Country Status (1)

Country Link
JP (1) JP2586741Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003097725A (en) * 2001-09-27 2003-04-03 Nok Corp Sealing device
JP2015529592A (en) * 2012-07-30 2015-10-08 イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ Multiple lip seals for valves

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100468367B1 (en) * 2002-08-19 2005-01-27 에프에이지베어링코리아유한회사 an apparatus for sealing a water pump bearing
JP4676212B2 (en) * 2005-02-04 2011-04-27 Ｎｔｎ株式会社 Sealed rolling bearing
US7591593B2 (en) * 2005-02-04 2009-09-22 Ntn Corporation Sealed rolling bearing
JP2006214549A (en) * 2005-02-04 2006-08-17 Ntn Corp Sealed rolling bearing
JP5100056B2 (en) * 2006-08-17 2012-12-19 Ｎｔｎ株式会社 Wheel bearing device
JP5328136B2 (en) * 2007-11-09 2013-10-30 Ｎｔｎ株式会社 Wheel bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003097725A (en) * 2001-09-27 2003-04-03 Nok Corp Sealing device
JP2015529592A (en) * 2012-07-30 2015-10-08 イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ Multiple lip seals for valves
US10184583B2 (en) 2012-07-30 2019-01-22 Eaton Intelligent Power Limited Redundant lip seal for valve

Also Published As

Publication number Publication date
JPH071334U (en) 1995-01-10

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