JPH11223226A - Clutch release bearing - Google Patents

Clutch release bearing

Info

Publication number
JPH11223226A
JPH11223226A JP10038132A JP3813298A JPH11223226A JP H11223226 A JPH11223226 A JP H11223226A JP 10038132 A JP10038132 A JP 10038132A JP 3813298 A JP3813298 A JP 3813298A JP H11223226 A JPH11223226 A JP H11223226A
Authority
JP
Japan
Prior art keywords
cover
inner ring
flange
cylindrical
clutch release
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
Application number
JP10038132A
Other languages
Japanese (ja)
Other versions
JP3751743B2 (en
Inventor
Toshiyuki Maeda
敏幸 前田
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.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko Co Ltd
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 Koyo Seiko Co Ltd filed Critical Koyo Seiko Co Ltd
Priority to JP03813298A priority Critical patent/JP3751743B2/en
Publication of JPH11223226A publication Critical patent/JPH11223226A/en
Application granted granted Critical
Publication of JP3751743B2 publication Critical patent/JP3751743B2/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
    • F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
    • F16D23/142—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings with a resilient member acting radially between the bearing and its guide means
    • 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
    • F16C19/16—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 a single row of balls
    • F16C19/163—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 a single row of balls with angular contact
    • 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
    • F16C33/80—Labyrinth sealings
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/08—Details or arrangements of sealings not provided for in group F16D3/84

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve the sealing property by providing an axial protruding part for forming a non-contact sealing part with the upper end surface of an inner ring collar on a cover fixed to an outer ring and having end parts extending along the collar inside surface and cylindrical surface of the inner ring. SOLUTION: A cover 10 is fitted and fixed to the circumferential surface 6a of the cylindrical part 6 of an outer ring 1, and its free end part is extended into a substantially L-shaped section formed of a radial flange 10 laid along the inside surface 9b of the collar part 9 of an inner ring 2 and a cylindrical part 10b laid along the cylindrical part 8 of the inner ring 2, and an axial, protruding part 10c for covering the upper end surface 9a of the inner ring collar part 9 is integrally bent and formed in the middle of the cover 10. According to this, non-contact sealing parts 11, 12, 13 are formed between the axial protruding part 10c and the upper end surface 9a, between the cover 10 and the inside surface 9b, and between the cover 10 and the circumferential surface 8a of the inner ring cylindrical part 8, and these spaces are continued to form a non-contact sealing passage 14. Thus, since the passage of the non-contact sealing part between the cover fixed to the outer ring and the inner ring can be extended, the sealing property can be improved.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、主として自動車の
クラッチレリーズ機構に用いられるクラッチレリーズ軸
受に関する。The present invention relates to a clutch release bearing mainly used for a clutch release mechanism of an automobile.

【０００２】[0002]

【従来の技術】従来のこの種のクラッチレリーズ軸受と
しては、図４（実開平３−６８６２９号公報に相当）の
ものが知られている。このクラッチレリーズ軸受は、鋼
板からプレス成形された外輪４０と内輪４１を有し、上
記外輪４０は、内周に転動体４２の軌道面４３が形成さ
れ、一端（図４では左端）に径方向内向きにクラッチス
プリング５０に向けて湾曲して延びる鍔部４４が形成さ
れている。上記内輪４１は、外周に転動体４２の軌道面
４５が形成され、かつレリーズフォーク（図示せず）側
（図４では右側）に円筒部４６が形成され、上記円筒部
４６の一端に径方向外向きに直線的に延びる鍔部４７が
形成されている。上記外輪４０の他端（図４では右側）
の外周面には、内輪４１の鍔部４７の内側面４７ａおよ
び円筒部４６の外周面４６ａに沿って延びるカバー４８
が形成され、このカバー４８と内輪４１の鍔部４７およ
び円筒部４６間に非接触密封部４９が形成されている。2. Description of the Related Art FIG. 4 (corresponding to Japanese Utility Model Laid-Open No. 3-68629) is known as a conventional clutch release bearing of this type. This clutch release bearing has an outer race 40 and an inner race 41 press-formed from a steel plate. The outer race 40 has a raceway surface 43 of a rolling element 42 formed on an inner periphery thereof, and has a radial direction at one end (the left end in FIG. 4). A flange portion 44 that curves inward and extends toward the clutch spring 50 is formed. The inner race 41 has a raceway surface 45 of the rolling element 42 formed on the outer periphery thereof, a cylindrical portion 46 formed on a release fork (not shown) side (the right side in FIG. 4), and a radial direction at one end of the cylindrical portion 46. A flange portion 47 extending linearly outward is formed. The other end of the outer ring 40 (right side in FIG. 4)
The cover 48 extends along the inner surface 47a of the flange 47 of the inner ring 41 and the outer surface 46a of the cylindrical portion 46.
A non-contact sealing portion 49 is formed between the cover 48 and the flange portion 47 and the cylindrical portion 46 of the inner ring 41.

【０００３】また、内輪４１の外輪鍔部４４側には、ゴ
ムなどの弾性体５４が固着されており、この弾性体５４
には外輪４０の鍔部４４の内側面との間で接触密封部を
形成する接触シール５５が一体に形成されている。さら
にこの弾性体５４は、その内周面の周方向複数箇所に突
出する複数のリブ５６が形成されており、このリブ５６
により、後述する円筒状スリーブ５１に対し、レリーズ
軸受を径方向に変位可能に保持できるようになってい
る。An elastic body 54 such as rubber is fixed to the inner ring 41 on the outer ring flange 44 side.
A contact seal 55 that forms a contact sealing portion with the inner surface of the flange 44 of the outer ring 40 is integrally formed with the outer ring 40. Further, the elastic body 54 is formed with a plurality of ribs 56 protruding at a plurality of circumferential positions on the inner peripheral surface thereof.
Accordingly, the release bearing can be held so as to be displaceable in the radial direction with respect to a cylindrical sleeve 51 described later.

【０００４】５１はリテーナ５７上を摺動する円筒状ス
リーブで、径方向外向き鍔部５２が一体成形されてい
る。この外向き鍔部５２の内側面には、上記内輪４１の
鍔部４７が当接され、さらにこの外向き鍔部５２の外側
面には、図示しないレリーズフォークが当接されるフラ
ンジ５３が一体的に固着されている。Reference numeral 51 denotes a cylindrical sleeve which slides on a retainer 57, and a radially outward flange 52 is integrally formed. A flange 47 of the inner ring 41 is in contact with an inner surface of the outward flange 52, and a flange 53 with which a release fork (not shown) is in contact is integrally formed on an outer surface of the outward flange 52. Fixed.

【０００５】[0005]

【発明が解決しようとする課題】従来のクラッチレリー
ズ軸受においては、カバー４８と内輪４１の鍔部４７お
よび円筒部４６間には、非接触密封部４９が形成されて
軸受が密封されているが、非接触密封部４９の長さが短
いため、密封性が十分に発揮できず、外部の汚水等が軸
受内に侵入する不都合があった。In the conventional clutch release bearing, a non-contact sealing portion 49 is formed between the cover 48 and the flange portion 47 and the cylindrical portion 46 of the inner race 41 to seal the bearing. However, since the length of the non-contact sealing portion 49 is short, the sealing performance cannot be sufficiently exhibited, and there is a problem that external contaminated water or the like enters the bearing.

【０００６】そこで、この発明の目的は、カバーと内輪
間の非接触密封部を維持しながら、さらに密封性を向上
させたクラッチレリーズ軸受を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a clutch release bearing having a further improved sealing performance while maintaining a non-contact sealing portion between a cover and an inner race.

【０００７】[0007]

【課題を解決するための手段】上記課題を解決するため
の手段として、請求項１においては、クラッチスプリン
グ側に径方向内方に延びる鍔部が形成された外輪と、レ
リーズフォーク側に円筒部が形成されるとともにこの円
筒部から径方向外方に延びる鍔部が形成された内輪と、
外輪に固定されるとともに端部が内輪の鍔部内側面およ
び円筒面に沿って延びたカバーと、このカバーと内輪間
に非接触密封部が形成されたクラッチレリーズ軸受にお
いて、上記カバーに、上記内輪鍔部の上端面との間で非
接触密封部を形成する軸方向突出部が形成されたことを
特徴とする。As means for solving the above-mentioned problems, in the first aspect, an outer ring having a radially inwardly extending flange formed on the clutch spring side, and a cylindrical portion being formed on the release fork side. Is formed, and an inner ring formed with a flange portion extending radially outward from the cylindrical portion,
A cover fixed to the outer ring and having an end extending along the inner surface and the cylindrical surface of the flange of the inner ring; and a clutch release bearing having a non-contact sealing portion formed between the cover and the inner ring. An axial protrusion that forms a non-contact sealing portion with the upper end surface of the flange is formed.

【０００８】また、請求項２では、請求項１のクラッチ
レリーズ軸受において、上記カバーの端部に、円筒面側
に延びる突出部が形成されたことを特徴とする。According to a second aspect of the present invention, in the clutch release bearing of the first aspect, a protrusion extending toward the cylindrical surface is formed at an end of the cover.

【０００９】さらに請求項３では、請求項１のクラッチ
レリーズ軸受において、上記カバーの端部に、円筒面側
に空間部を有する径方向外向き突出部が形成されたこと
を特徴とする。According to a third aspect of the present invention, in the clutch release bearing of the first aspect, a radially outwardly projecting portion having a space on the cylindrical surface side is formed at an end of the cover.

【００１０】さらにまた請求項４では、請求項３のクラ
ッチレリーズ軸受において、上記カバーの径方向外向き
突出部に軸受内部と上記空間部とを連通する穴が形成さ
れたことを特徴とする。According to a fourth aspect of the present invention, in the clutch release bearing of the third aspect, a hole is formed in a radially outwardly protruding portion of the cover so as to communicate the inside of the bearing with the space.

【００１１】[0011]

【発明の実施の形態】以下、この発明の具体的実施例に
ついて図面を参照して説明する。図１において、鋼板か
らプレス成形された外輪１と内輪２とを有し、この外輪
１は内周に転動体３の軌道面４が形成され、一端（図１
の左端）に径方向内方にクラッチスプリングに向けて湾
曲して延びる鍔部５が、また他端（図１の右端）に円筒
部６が形成されている。さらに上記内輪２は、外周に転
動体３の軌道面７が形成されかつレリーズフォーク側
（図１の右端）に円筒部８が形成され、この円筒部８の
一端に径方向外方に直線的に延びる鍔部９が形成されて
いる。上記外輪１の円筒部６の外周面６ａにはカバー１
０が嵌合固定され、このカバー１０の自由端部が内輪２
の鍔部９の内側面９ｂに沿う径方向フランジ１０ａと内
輪２の円筒部８に沿う円筒部１０ｂとで構成される断面
略Ｌ形に延びるとともに、このカバー１０の中途に上記
内輪鍔部９の上端面９ａに覆いかぶさる軸方向突出部１
０ｃが一体に屈曲形成されている。これにより、カバー
１０の軸方向突出部１０ｃと内輪鍔部９の上端面９ａ
間、カバー１０と内輪鍔部９の内側面９ｂ間およびカバ
ー１０と内輪円筒部８の外周面８ａ間にそれぞれ非接触
密封部１１，１２，１３が形成され、かつこれら３箇所
の密封部１１，１２，１３が連続して非接触密封通路１
４が形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. In FIG. 1, an outer ring 1 and an inner ring 2 are formed by pressing a steel plate. The outer ring 1 has a raceway surface 4 of a rolling element 3 formed on an inner periphery thereof, and one end (FIG. 1).
A flange portion 5 is formed at the left end (a left end) and extends radially inward toward the clutch spring, and a cylindrical portion 6 is formed at the other end (the right end in FIG. 1). Further, the inner race 2 has a raceway surface 7 of the rolling element 3 formed on the outer periphery and a cylindrical portion 8 formed on the release fork side (the right end in FIG. 1). Is formed. A cover 1 is provided on the outer peripheral surface 6a of the cylindrical portion 6 of the outer ring 1.
0 is fitted and fixed, and the free end of the cover 10 is
The flange 10 extends in a substantially L-shaped cross section formed by a radial flange 10a along the inner side surface 9b of the flange 9 and a cylindrical portion 10b along the cylindrical portion 8 of the inner ring 2. Axial projection 1 covering the upper end surface 9a of the
0c is integrally bent. Thereby, the axially protruding portion 10c of the cover 10 and the upper end surface 9a of the inner ring flange 9 are formed.
Non-contact sealing portions 11, 12, and 13 are formed between the cover 10, the inner surface 9b of the inner ring flange 9, and between the cover 10 and the outer peripheral surface 8a of the inner ring cylindrical portion 8, respectively. , 12 and 13 are continuous non-contact sealed passages 1
4 are formed.

【００１２】また、内輪２の外輪鍔部５側内周面には、
ゴムなどの弾性体１５が固着されており、この弾性体１
５には外輪１の鍔部５の内側面との間で接触密封部を形
成する接触シール１６が一体に形成されている。さらに
この弾性体１５は、その内周面の周方向複数箇所に突出
する複数のリブ１７が形成されており、このリブ１７に
より、図４に示す円筒状スリーブ５１に対し、レリーズ
軸受を径方向に変位可能に保持できるようになってい
る。Further, on the inner peripheral surface of the inner ring 2 on the outer ring flange 5 side,
An elastic body 15 made of rubber or the like is fixed.
5 is integrally formed with a contact seal 16 that forms a contact sealing portion with the inner surface of the flange 5 of the outer ring 1. Further, the elastic body 15 is formed with a plurality of ribs 17 protruding at a plurality of locations on the inner peripheral surface in the circumferential direction. So that it can be displaced.

【００１３】なお、円筒状スリーブ、リテーナ等他の構
成は従来構造である図４と同一のため、記載を省略して
いる。The other components such as the cylindrical sleeve and the retainer are the same as those of the conventional structure shown in FIG.

【００１４】図１の構成により、非接触密封部の通路長
さを長くできるため、密封性が向上する。According to the structure of FIG. 1, the length of the passage of the non-contact sealing portion can be increased, so that the sealing performance is improved.

【００１５】次に、図２は第二の実施例であり、図１の
構成のカバー１０において、カバー１０の円筒部１０ｂ
に内輪２の円筒部８の外周面８ａに向けて突出部１８が
屈曲形成されている。なおこの突出部１８と内輪円筒部
８とは非接触とされている。この実施例では、非接触密
封通路１４中に壁を形成して非接触密封通路を多段化で
きるため、より密封性が向上する。FIG. 2 shows a second embodiment. In the cover 10 having the structure shown in FIG.
A protruding portion 18 is formed to be bent toward the outer peripheral surface 8a of the cylindrical portion 8 of the inner ring 2. The protruding portion 18 and the inner ring cylindrical portion 8 are not in contact with each other. In this embodiment, a wall is formed in the non-contact sealed passage 14 so that the non-contact sealed passage can be multi-staged, so that the sealing performance is further improved.

【００１６】さらに、図３は第三の実施例であり、図１
の構成のカバー１０において、カバー１０の円筒部１０
ｂに径方向外向きに断面略三角形の突出部１９が形成さ
れ、この突出部１９の内部空間がグリース溜り２０とさ
れている。さらに、この突出部１９には突出部内部空間
（グリース溜り）２０と軸受内部とを連通する穴２１が
円周上に複数形成されている。この実施例では、突出部
１９の外周面が傾斜面２２とされているため、軸受内部
のグリースが軸受回転時の遠心力にて外輪１側に循環案
内され、グリースの漏れが防止される。また万一グリー
スが漏れてもカバー１０のグリース溜り２０にて保持さ
れるので軸受外部への漏れが防止される。さらに、突出
部１９には穴２１が形成されているため、グリース溜り
２０に溜められたグリースは、軸受回転時の遠心力にて
軸受内部に戻されるため、より軸受外部へのグリース漏
れが防止される。FIG. 3 shows a third embodiment, and FIG.
Of the cover 10, the cylindrical portion 10 of the cover 10
A projection 19 having a substantially triangular cross section is formed radially outward on b, and the internal space of the projection 19 is a grease reservoir 20. Further, a plurality of holes 21 are formed on the circumference of the protruding portion 19 to communicate the protruding portion internal space (grease reservoir) 20 and the inside of the bearing. In this embodiment, since the outer peripheral surface of the projecting portion 19 is the inclined surface 22, the grease inside the bearing is circulated and guided to the outer ring 1 side by the centrifugal force at the time of rotation of the bearing, thereby preventing the grease from leaking. Even if the grease leaks, the grease is held by the grease reservoir 20 of the cover 10, so that leakage to the outside of the bearing is prevented. Furthermore, since the projection 21 has the hole 21 formed therein, the grease stored in the grease reservoir 20 is returned to the inside of the bearing by centrifugal force when the bearing rotates, so that grease leakage to the outside of the bearing is further prevented. Is done.

【００１７】[0017]

【発明の効果】以上詳述したように、外輪に固定された
カバーと内輪間の非接触密封部の通路長さを長くできる
ため、密封性が向上する。As described in detail above, since the passage length of the non-contact sealing portion between the cover fixed to the outer race and the inner race can be increased, the sealing performance is improved.

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

【図１】この発明の第一実施例の断面図である。FIG. 1 is a sectional view of a first embodiment of the present invention.

【図２】この発明の第二実施例の断面図である。FIG. 2 is a sectional view of a second embodiment of the present invention.

【図３】この発明の第三実施例の断面図である。FIG. 3 is a sectional view of a third embodiment of the present invention.

【図４】従来のクラッチレリーズ軸受の断面図である。FIG. 4 is a sectional view of a conventional clutch release bearing.

【符号の説明】[Explanation of symbols]

１ 外輪 ２ 内輪 ３ 転動体 ４ 軌道面 ５ 鍔部 ６ 円筒部 ７ 軌道面 ８ 円筒部 ９ 鍔部 ９ａ 上端面 １０ カバー １０ｃ 軸方向突出部 １１，１２，１３ 非接触密封部 １４ 非接触密封通路 １８ 突出部 １９ 突出部 ２０ グリース溜り ２１ 穴 ２２ 傾斜面 REFERENCE SIGNS LIST 1 outer ring 2 inner ring 3 rolling element 4 raceway surface 5 flange portion 6 cylindrical portion 7 raceway surface 8 cylindrical portion 9 flange portion 9a upper end surface 10 cover 10c axial protrusion 11, 12, 13 non-contact sealed portion 14 non-contact sealed passage 18 Projection 19 Projection 20 Grease reservoir 21 Hole 22 Inclined surface

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 クラッチスプリング側に径方向内方に延
びる鍔部が形成された外輪と、レリーズフォーク側に円
筒部が形成されるとともにこの円筒部から径方向外方に
延びる鍔部が形成された内輪と、外輪に固定されるとと
もに端部が内輪の鍔部内側面および円筒面に沿って延び
たカバーと、このカバーと内輪間に非接触密封部が形成
されたクラッチレリーズ軸受において、上記カバーに、
上記内輪鍔部の上端面との間で非接触密封部を形成する
軸方向突出部が形成されたことを特徴とするクラッチレ
リーズ軸受。An outer ring having a radially inwardly extending flange formed on a clutch spring side, and a cylindrical portion formed on a release fork side and a radially outwardly extending flange formed from the cylindrical portion. An inner ring, a cover fixed to the outer ring and having an end extending along the inner surface and the cylindrical surface of the flange of the inner ring, and a clutch release bearing in which a non-contact sealing portion is formed between the cover and the inner ring. To
A clutch release bearing, wherein an axial protrusion that forms a non-contact sealing portion is formed between the upper end surface of the inner ring flange and the upper end surface. 【請求項２】 上記カバーの端部に、円筒面側に延びる
突出部が形成されたことを特徴とする請求項１に記載の
クラッチレリーズ軸受。2. The clutch release bearing according to claim 1, wherein a protrusion extending toward the cylindrical surface is formed at an end of the cover. 【請求項３】 上記カバーの端部に、円筒面側に空間部
を有する径方向外向き突出部が形成されたことを特徴と
する請求項１に記載のクラッチレリーズ軸受。3. The clutch release bearing according to claim 1, wherein a radially outwardly projecting portion having a space on the cylindrical surface side is formed at an end of the cover. 【請求項４】 上記カバーの径方向外向き突出部に軸受
内部と上記空間部とを連通する穴が形成されたことを特
徴とする請求項３に記載のクラッチレリーズ軸受。4. The clutch release bearing according to claim 3, wherein a hole communicating between the inside of the bearing and the space is formed in a radially outwardly projecting portion of the cover.
JP03813298A 1998-02-04 1998-02-04 Clutch release bearing Expired - Fee Related JP3751743B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP03813298A JP3751743B2 (en) 1998-02-04 1998-02-04 Clutch release bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03813298A JP3751743B2 (en) 1998-02-04 1998-02-04 Clutch release bearing

Publications (2)

Publication Number Publication Date
JPH11223226A true JPH11223226A (en) 1999-08-17
JP3751743B2 JP3751743B2 (en) 2006-03-01

Family

ID=12516921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP03813298A Expired - Fee Related JP3751743B2 (en) 1998-02-04 1998-02-04 Clutch release bearing

Country Status (1)

Country Link
JP (1) JP3751743B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009180309A (en) * 2008-01-31 2009-08-13 Jtekt Corp Clutch release bearing
JP2009281448A (en) * 2008-05-20 2009-12-03 Ntn Corp Ball bearing for clutch release bearing device
JP2009281402A (en) * 2008-05-19 2009-12-03 Ntn Corp Ball bearing for clutch release bearing device
US20110206311A1 (en) * 2008-08-23 2011-08-25 Schaeffler Tehcnologies GmbH & Co., KG Clutch release bearing and method for the production thereof
CN105041878A (en) * 2014-04-24 2015-11-11 Skf公司 Rolling bearing, notably for clutch release bearing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101852255B1 (en) * 2016-05-04 2018-04-25 셰플러코리아(유) Clutch Release Bearing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009180309A (en) * 2008-01-31 2009-08-13 Jtekt Corp Clutch release bearing
JP2009281402A (en) * 2008-05-19 2009-12-03 Ntn Corp Ball bearing for clutch release bearing device
JP2009281448A (en) * 2008-05-20 2009-12-03 Ntn Corp Ball bearing for clutch release bearing device
US20110206311A1 (en) * 2008-08-23 2011-08-25 Schaeffler Tehcnologies GmbH & Co., KG Clutch release bearing and method for the production thereof
US8348512B2 (en) * 2008-08-23 2013-01-08 Schaeffler Technologies AG & Co. KG Clutch release bearing and method for the production thereof
CN105041878A (en) * 2014-04-24 2015-11-11 Skf公司 Rolling bearing, notably for clutch release bearing device

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