JP2538263Y2 - Rolling bearing with seal - Google Patents

Rolling bearing with seal

Info

Publication number
JP2538263Y2
JP2538263Y2 JP1992015437U JP1543792U JP2538263Y2 JP 2538263 Y2 JP2538263 Y2 JP 2538263Y2 JP 1992015437 U JP1992015437 U JP 1992015437U JP 1543792 U JP1543792 U JP 1543792U JP 2538263 Y2 JP2538263 Y2 JP 2538263Y2
Authority
JP
Japan
Prior art keywords
seal
bearing
lubricating oil
outer ring
rolling bearing
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
Application number
JP1992015437U
Other languages
Japanese (ja)
Other versions
JPH0577620U (en
Inventor
保彦 清水
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 JP1992015437U priority Critical patent/JP2538263Y2/en
Publication of JPH0577620U publication Critical patent/JPH0577620U/en
Application granted granted Critical
Publication of JP2538263Y2 publication Critical patent/JP2538263Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6685—Details of collecting or draining, e.g. returning the liquid to a sump
    • 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
    • F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
    • F16C33/7813—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for tapered roller bearings
    • 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
    • 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
    • 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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts

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】[Detailed description of the invention]

【０００１】[0001]

【産業上の利用分野】この考案は、シール付きの転がり
軸受に関するものである。BACKGROUND OF THE INVENTION The present invention relates to a rolling bearing with a seal.

【０００２】[0002]

【従来の技術】一般に、自動車のトランスミッションに
組込まれた円錐ころ軸受等の軸受は、ミッションケース
内に入れられた潤滑油によって油潤滑される。2. Description of the Related Art In general, bearings such as tapered roller bearings incorporated in a transmission of an automobile are lubricated by lubricating oil contained in a transmission case.

【０００３】上記潤滑油には、ギヤの摩耗粉等の異物が
混入しており、その異物が軸受内部に侵入すると、その
異物の噛み込みによって軌道面が損傷し、焼付きが生
じ、軸受寿命が低下する。このため、トランスミッショ
ンに組込まれる軸受には、シール付き転がり軸受が用い
られている。[0003] The lubricating oil contains foreign substances such as gear abrasion powder. If the foreign substances enter the inside of the bearing, the foreign substances may be caught, damaging the raceway surface and causing seizure. Decrease. For this reason, rolling bearings with seals are used as bearings incorporated in transmissions.

【０００４】シール付き軸受として、図３に示したもの
がある。このシール付き軸受は、外輪１と内輪２の両端
部間に一対のフィルタシール３を組込み、そのフィルタ
シール３によって潤滑油に含まれる異物が軸受内部に侵
入するのを防止し、潤滑油のみを軸受内部に侵入させる
ようにしている。FIG. 3 shows an example of a bearing with a seal. This sealed bearing incorporates a pair of filter seals 3 between both ends of the outer ring 1 and the inner ring 2 to prevent foreign substances contained in the lubricating oil from entering the inside of the bearing by the filter seals 3. It is made to penetrate inside the bearing.

【０００５】[0005]

【考案が解決しようとする課題】ところで、上記フィル
タシール付き軸受においては、万一軸受内部に異物が侵
入し、あるいは軸受内部に自製摩耗粉が生じると、これ
らの異物を軸受外部に容易に排出させることができず、
異物のかみ込みにより軸受寿命を低下させる恐れがあ
る。In the bearing with a filter seal described above, if foreign matter enters the bearing or self-made abrasion powder is generated inside the bearing, the foreign matter is easily discharged to the outside of the bearing. Can not be
There is a risk that the life of the bearing will be shortened due to the intrusion of foreign matter.

【０００６】この考案は、上記の不都合を解消し、軸受
内部に異物が侵入するのを防止し、かつ内部で発生した
異物を外部に排出できるようにすることを技術的課題と
している。It is a technical object of the present invention to solve the above inconvenience, prevent foreign substances from entering the inside of the bearing, and discharge foreign substances generated inside to the outside.

【０００７】[0007]

【課題を解決するための手段】上記の課題を解決するた
めに、この考案においては、外輪、内輪および転動体か
ら成るシール付き転がり軸受において、前記外輪と内輪
の一方の端部間にフィルタシールを組込み、他方の端部
間にシールリップを有する弾性シールを組込み、その弾
性シールを内輪に固定し、シールリップを外輪の側面に
圧接させた構成を採用したのである。In order to solve the above-mentioned problems, in the present invention, in a rolling bearing with a seal comprising an outer ring, an inner ring and a rolling element, a filter seal is provided between one end of the outer ring and the inner ring. And an elastic seal having a seal lip between the other ends is incorporated, the elastic seal is fixed to the inner race, and the seal lip is pressed against the side surface of the outer race.

【０００８】[0008]

【作用】上記のように、弾性シールのシールリップを外
輪の側面に圧接させたことにより、内輪が高速回転する
と、遠心力によってシールリップは外輪の側面から離
れ、そのシールリップと外輪の側面間に形成された隙間
から軸受内部の潤滑油が流出し、その潤滑油と共に異物
を外部に排出させることができる。As described above, the seal lip of the elastic seal is pressed against the side surface of the outer ring, so that when the inner ring rotates at high speed, the seal lip separates from the side surface of the outer ring due to centrifugal force, and the gap between the seal lip and the side surface of the outer ring. The lubricating oil inside the bearing flows out of the gap formed in the bearing, and foreign substances can be discharged to the outside together with the lubricating oil.

【０００９】[0009]

【実施例】以下、この考案の実施例を図１および図２に
基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

【００１０】図１は、円錐ころ軸受を示し、外輪１０の
内側に組込まれた内輪１１は、大つば１２および小つば
１３を有し、その内輪１１と外輪１０間に円錐ころ１４
と、その円錐ころ１４を保持する保持器１５とが組込ま
れている。FIG. 1 shows a tapered roller bearing in which an inner ring 11 incorporated inside an outer ring 10 has a large collar 12 and a small collar 13, and a tapered roller 14 between the inner ring 11 and the outer ring 10.
And a retainer 15 for holding the tapered rollers 14 are incorporated.

【００１１】外輪１０と内輪１１の一方の端部間にはフ
ィルタシール１６が設けられ、他方の端部間にはゴムか
ら成る弾性シール１７が設けられている。A filter seal 16 is provided between one end of the outer ring 10 and the inner ring 11, and an elastic seal 17 made of rubber is provided between the other ends.

【００１２】フィルタシール１６の外径側は、２枚の芯
金１８によって両側から挾持されている。芯金１８はフ
ィルタシール１６を扁平に押し潰す挾着部１９を外径側
に有し、その挾着部１９は断面コの字形に折り曲げられ
て屈曲部２０が設けられている。屈曲部２０の外径面に
はゴムから成る環状突条２１が形成され、一方、外輪１
０の小径側端部の内周には係合溝２２が設けられ、その
係合溝２２に対する環状突条２１の係合によってフィル
タシール１６は内径側が小つば１３の外径面と接触する
取付けとされている。The outer diameter side of the filter seal 16 is clamped from both sides by two cores 18. The cored bar 18 has a clamping portion 19 on the outer diameter side to crush the filter seal 16 flat, and the clamping portion 19 is bent in a U-shaped cross section to provide a bent portion 20. An annular ridge 21 made of rubber is formed on the outer diameter surface of the bent portion 20.
An engagement groove 22 is provided on the inner periphery of the small-diameter side end of the filter seal 16. It has been.

【００１３】一方、弾性シール１７は、シール芯金２３
によって内径部が補強されている。シール芯金２３の内
径部には嵌合筒部２４が設けられ、その嵌合筒部２４は
大つば１２の外径面に圧入されている。この圧入によっ
て弾性シール１７は外径部に設けたシールリップ２５が
外輪１０の側面に圧入する取付けとされている。On the other hand, the elastic seal 17 has a seal core 23
The inner diameter portion is reinforced. A fitting cylinder 24 is provided on the inner diameter of the seal core 23, and the fitting cylinder 24 is press-fitted into the outer diameter surface of the large collar 12. By this press-fitting, the elastic seal 17 is mounted so that the seal lip 25 provided on the outer diameter portion is press-fitted into the side surface of the outer ring 10.

【００１４】実施例で示すシール付き転がり軸受は上記
の構造から成り、内輪１１が低速回転する状態では弾性
シール１７のシールリップ２５は外輪１０の側面に圧接
する状態に保持される。このため、軸受内部に異物は侵
入しない。The rolling bearing with a seal shown in the embodiment has the above-mentioned structure. When the inner race 11 rotates at a low speed, the seal lip 25 of the elastic seal 17 is held in pressure contact with the side surface of the outer race 10. Therefore, no foreign matter enters the bearing.

【００１５】内輪１１が高速回転すると、軸受内部に封
入された潤滑油の遠心力によってシールリップ２５は外
径方向に押され、図２に示すように、外輪１０の側面か
ら離反する。このため、軸受内部の潤滑油は、外輪１０
の側面とシールリップ２５との間に形成された隙間から
外部に排出されると共に、軸受外部の潤滑油はフィルタ
シール１６を通過して軸受内部に侵入し、潤滑油の循環
によって軸受内部は潤滑される。When the inner race 11 rotates at high speed, the seal lip 25 is pushed in the outer diameter direction by the centrifugal force of the lubricating oil sealed in the bearing, and separates from the side surface of the outer race 10 as shown in FIG. For this reason, the lubricating oil inside the bearing is
The lubricating oil outside the bearing passes through the filter seal 16 and enters the inside of the bearing, and the inside of the bearing is lubricated by the circulation of the lubricating oil. Is done.

【００１６】このように、内輪１１が高速回転すると、
潤滑油が循環するため、軸受内部に発生した自製摩耗粉
等の異物は潤滑油と共に軸受外部に排出される。また、
軸受内部に流入する潤滑油中の異物は、フィルタシール
１６によって除去されるため、軸受内部に異物が侵入せ
ず、異物のかみ込みによる軌道面の損傷や焼付きを防止
することができる。As described above, when the inner race 11 rotates at a high speed,
Since the lubricating oil circulates, foreign substances such as self-made abrasion powder generated inside the bearing are discharged to the outside of the bearing together with the lubricating oil. Also,
The foreign matter in the lubricating oil flowing into the bearing is removed by the filter seal 16, so that the foreign matter does not enter the inside of the bearing, so that damage to the raceway surface and seizure due to the foreign matter being caught can be prevented.

【００１７】実施例の場合は、シール付き転がり軸受と
して円すいころ軸受を示したが、転がり軸受はこれに限
定されず、例えば、玉軸受であってもよい。In the embodiment, the tapered roller bearing is shown as the sealed rolling bearing. However, the rolling bearing is not limited to this, and may be, for example, a ball bearing.

【００１８】[0018]

【考案の効果】以上のように、この考案に係るシール付
き転がり軸受においては、内輪が高速回転すると、弾性
シールのシールリップが外輪の側面から離反してその側
面との間に形成される隙間から軸受内部の潤滑油が外部
に流出するため、軸受内部に形成された自製摩耗粉等の
異物を潤滑油と共に外部に排出させることができる。ま
た、軸受内部に流入する潤滑油中の異物をフィルタシー
ルによって除去することができるため、異物のかみ込み
による軌道面の損傷や焼付きを防止することができ、軸
受寿命の向上を図ることができる。As described above, in the rolling bearing with a seal according to the present invention, when the inner ring rotates at a high speed, the seal lip of the elastic seal separates from the side surface of the outer ring and is formed between the outer ring and the side surface. Since the lubricating oil inside the bearing flows out to the outside, foreign substances such as self-made abrasion powder formed inside the bearing can be discharged to the outside together with the lubricating oil. In addition, since foreign matter in the lubricating oil flowing into the bearing can be removed by the filter seal, damage and seizure of the raceway surface due to the foreign matter can be prevented, and the life of the bearing can be improved. it can.

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

【図１】この考案に係るシール付き転がり軸受の一実施
例を示す断面図FIG. 1 is a sectional view showing an embodiment of a rolling bearing with a seal according to the present invention.

【図２】同上の作動状態を示す断面図FIG. 2 is a sectional view showing an operation state of the above.

【図３】従来のシール付き転がり軸受を示す断面図FIG. 3 is a sectional view showing a conventional rolling bearing with a seal.

【符号の説明】[Explanation of symbols]

１０ 外輪 １１ 内輪 １４ 円すいころ １６ フィルタシール １７ 弾性シール ２５ シールリップ Reference Signs List 10 outer ring 11 inner ring 14 tapered roller 16 filter seal 17 elastic seal 25 seal lip

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項１】 外輪、内輪および転動体から成るシール
付き転がり軸受において、前記外輪と内輪の一方の端部
間にフィルタシールを組込み、他方の端部間にシールリ
ップを有する弾性シールを組込み、その弾性シールを内
輪に固定し、シールリップを外輪の側面に圧接させたこ
とを特徴とするシール付き転がり軸受。1. A rolling bearing with a seal comprising an outer ring, an inner ring and a rolling element, wherein a filter seal is incorporated between one end of the outer ring and the inner ring, and an elastic seal having a seal lip is incorporated between the other ends. A rolling bearing with a seal, wherein the elastic seal is fixed to the inner ring, and the seal lip is pressed against the side surface of the outer ring.
JP1992015437U 1992-03-24 1992-03-24 Rolling bearing with seal Expired - Lifetime JP2538263Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1992015437U JP2538263Y2 (en) 1992-03-24 1992-03-24 Rolling bearing with seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1992015437U JP2538263Y2 (en) 1992-03-24 1992-03-24 Rolling bearing with seal

Publications (2)

Publication Number Publication Date
JPH0577620U JPH0577620U (en) 1993-10-22
JP2538263Y2 true JP2538263Y2 (en) 1997-06-11

Family

ID=11888782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1992015437U Expired - Lifetime JP2538263Y2 (en) 1992-03-24 1992-03-24 Rolling bearing with seal

Country Status (1)

Country Link
JP (1) JP2538263Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6460751B2 (en) * 2014-11-25 2019-01-30 ナブテスコ株式会社 SEALING DEVICE AND GEAR TRANSMISSION DEVICE

Also Published As

Publication number Publication date
JPH0577620U (en) 1993-10-22

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