JP2007321795A - Wheel rolling bearing device - Google Patents

Wheel rolling bearing device Download PDF

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Publication number
JP2007321795A
JP2007321795A JP2006149662A JP2006149662A JP2007321795A JP 2007321795 A JP2007321795 A JP 2007321795A JP 2006149662 A JP2006149662 A JP 2006149662A JP 2006149662 A JP2006149662 A JP 2006149662A JP 2007321795 A JP2007321795 A JP 2007321795A
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Prior art keywords
cover member
outer ring
ring
wheel
bearing device
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JP2006149662A
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Japanese (ja)
Inventor
Hiroyuki Kono
博幸 河野
Arihiro Fujiwara
有宏 藤原
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JTEKT Corp
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JTEKT Corp
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Priority to JP2006149662A priority Critical patent/JP2007321795A/en
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    • 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
    • F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
    • 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
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheel rolling bearing device having improved sealing performance in a contact part between an outer ring and a cover member for sufficiently preventing the unexpected entry of water such as a rainwater. <P>SOLUTION: On the outer peripheral face of a hub shaft 15 of a hub wheel 10 having a flange 12 on which a wheel is assembled, a rolling bearing 20 is assembled which has an inner ring 22, the outer ring 30 and a plurality of rolling elements 40, 41. The cover member 50 is mounted in an opening portion at one end of the outer ring 30. A seal ring 57 having water swelling property is laid in the contact part between the outer ring 30 and the cover member 50. Water such as rainwater entering from the outside into the contact part between the outer ring 30 and the cover member 50 is absorbed by the seal ring 57 having water swelling property. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

この発明は、車輪が組み付けられるフランジを有するハブホイールのハブ軸に転がり軸受が組み付けられた車輪用転がり軸受装置に関する。   The present invention relates to a wheel rolling bearing device in which a rolling bearing is assembled to a hub shaft of a hub wheel having a flange to which the wheel is assembled.

この種の車輪用転がり軸受装置において、ハブホイールのハブ軸に組み付けられる転がり軸受は、内輪と、外輪と、複数個の転動体とを備え、外輪の一端開口部にカバー部材が嵌込まれて取り付けられたものがある。
また、従来、カバー部材の嵌合部の外周面にシールリング（Ｏリング）が装着され、このシールリングによってカバー部材と外輪の一端開口部との間の嵌合部分をシールして雨水等の浸入を防止するようにしたものが知られている（例えば、特許文献１参照）。
特開２０００−４６８５１号公報 In this type of wheel rolling bearing device, the rolling bearing assembled to the hub axle of the hub wheel includes an inner ring, an outer ring, and a plurality of rolling elements, and a cover member is fitted into one end opening of the outer ring. There is something attached.
Conventionally, a seal ring (O-ring) is mounted on the outer peripheral surface of the fitting portion of the cover member, and the fitting portion between the cover member and one end opening portion of the outer ring is sealed by this seal ring to prevent rainwater or the like. An apparatus that prevents intrusion is known (see, for example, Patent Document 1).
JP 2000-46851 A

ところで、特許文献１に開示されたものにおいては、外輪の一端開口部やカバー部材の嵌合部の加工精度のバラツキ等が原因となってシールリングによるシール性を充分に確保することができなくなることがある。この場合、外輪とカバー部材との間の接触部の外側から浸入した雨水等の水分が毛細管現象によってシールリングを通過し、外輪の内部に不測に浸入する恐れがある。   By the way, in what was disclosed by patent document 1, it becomes impossible to fully ensure the sealing performance by a seal ring by the cause of the processing precision variation of the one end opening part of an outer ring | wheel, or the fitting part of a cover member. Sometimes. In this case, moisture such as rainwater that has entered from the outside of the contact portion between the outer ring and the cover member may pass through the seal ring due to a capillary phenomenon and accidentally enter the inside of the outer ring.

この発明の目的は、前記問題点に鑑み、外輪とカバー部材との接触部の間のシール性を高めて、雨水等の水分が不測の浸入することを良好に防止することができる車輪用転がり軸受装置を提供することである。   In view of the above problems, an object of the present invention is to improve the sealing performance between the contact portions of the outer ring and the cover member, and to prevent the water such as rainwater from entering unexpectedly. It is to provide a bearing device.

前記目的を達成するために、この発明の請求項１に係る車輪用転がり軸受装置は、車輪が組み付けられるフランジを有するハブホイールのハブ軸の外周面に、内輪と、外輪と、複数個の転動体とを備えた転がり軸受が組み付けられ、前記外輪の一端開口部にカバー部材が取り付けられた車輪用軸受装置であって、
前記外輪と前記カバー部材との接触部の間には、水膨潤性を有するシールリングが介在されていることを特徴とする。 In order to achieve the above object, a rolling bearing device for a wheel according to claim 1 of the present invention includes an inner ring, an outer ring, and a plurality of rolling rings on an outer peripheral surface of a hub shaft of a hub wheel having a flange to which the wheel is assembled. A wheel bearing device in which a rolling bearing provided with a moving body is assembled, and a cover member is attached to one end opening of the outer ring,
A seal ring having water swellability is interposed between contact portions between the outer ring and the cover member.

前記構成によると、外輪とカバー部材との接触部の間の外側から浸入した雨水等の水分は、水膨潤性を有するシールリングによって吸収される。
また、シールリングは、雨水等の水分を吸収することで膨潤し、これによってシール性が高められるため、雨水等の水分が不測に浸入することを良好に防止することができる。 According to the said structure, the water | moisture content, such as rain water which infiltrated from the outer side between the contact parts of an outer ring | wheel and a cover member, is absorbed by the seal ring which has water swelling property.
In addition, the seal ring swells by absorbing moisture such as rainwater, thereby improving the sealing performance. Therefore, it is possible to satisfactorily prevent moisture such as rainwater from entering unexpectedly.

請求項２に係る車輪用転がり軸受装置は、カバー部材には、速度センサの検出部が嵌挿される嵌挿孔が形成され、
前記カバー部材と前記速度センサとの接触部の間には、水膨潤性を有するシールリングが介在されていることを特徴とする。 In the rolling bearing device for a wheel according to claim 2, the cover member is formed with an insertion hole into which the detection part of the speed sensor is inserted,
A seal ring having water swellability is interposed between contact portions of the cover member and the speed sensor.

したがって、請求項２に記載の発明によると、請求項１に記載の発明の作用効果に加えて、カバー部材と速度センサとの接触部の間の外側から浸入した雨水等の水分は、水膨潤性を有するシールリングによって吸収される。このため、カバー部材と速度センサとの接触部の間においてもシール性が高められ、雨水等の水分が不測に浸入することを良好に防止することができる。   Therefore, according to the invention described in claim 2, in addition to the operational effects of the invention described in claim 1, moisture such as rainwater that has entered from the outside between the contact portions of the cover member and the speed sensor is water swelled. It is absorbed by the sealing ring having the property. For this reason, the sealing performance is enhanced even between the contact portions between the cover member and the speed sensor, and it is possible to satisfactorily prevent moisture such as rainwater from entering unexpectedly.

次に、この発明を実施するための最良の形態を実施例にしたがって説明する。   Next, the best mode for carrying out the present invention will be described with reference to examples.

（実施例１）
この発明の実施例１を図１と図２にしたがって説明する。
図１はこの発明の実施例１に係る車輪用転がり軸受装置としての車輪用ハブユニットを示す側断面図である。図２は外輪の一端開口部とカバー部材との嵌合部分を拡大して示す断面図である。
図１に示すように、車輪用転がり軸受装置としての車輪用ハブユニットは、ハブホイール１０と、転がり軸受としての複列のアンギュラ玉軸受２１とを一体状に有してユニット化されている。
ハブホイール１０は、ハブ軸１５と、ハブ軸１５の一端部寄り外周面に形成されたフランジ１２とを一体に有している。
フランジ１２には車輪（図示しない）を取り付けるための複数本のハブボルト１１が所定ピッチで固定されている。 Example 1
A first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a side sectional view showing a wheel hub unit as a wheel rolling bearing device according to Embodiment 1 of the present invention. FIG. 2 is an enlarged cross-sectional view showing a fitting portion between one end opening of the outer ring and the cover member.
As shown in FIG. 1, a wheel hub unit as a wheel rolling bearing device is unitized by integrally including a hub wheel 10 and a double row angular ball bearing 21 as a rolling bearing.
The hub wheel 10 integrally includes a hub shaft 15 and a flange 12 formed on the outer peripheral surface near one end of the hub shaft 15.
A plurality of hub bolts 11 for attaching wheels (not shown) are fixed to the flange 12 at a predetermined pitch.

ハブ軸１５の外周には複列のアンギュラ玉軸受２１が組み付けられている。すなわち、ハブ軸１５の外周に沿って設けられた両軌道面２３、２４に対し所定の隙間をもって外輪３０が配置され、この外輪３０の内周面に形成された両軌道面３１、３２と、ハブ軸１５の両軌道面２３、２４との間に転動体としての複数個の玉４０、４１がそれぞれ組み込まれ、これら各複数個の玉４０、４１が保持器４２、４３によって保持されることでアンギュラ玉軸受２１が構成されている。
なお、図１に示すように、この実施例１においては、ハブ軸１５の外周面に設けられた両軌道面２３、２４のうち、ハブ軸１５のフランジ１２側に位置する軌道面２３は、ハブ軸２１の外周面が研削加工されることによって形成され、ハブ軸１５の先端側の軌道面２４は、ハブ軸１５の先端寄り外周面に嵌込まれた内輪２２の外周面に形成されている。
また、内輪２２は、ハブ軸１５の軸端から同軸上に形成された雄ねじ部１６にナット１７が締め付けられることによって固定されている。
また、外輪３０の外周面の軸方向中央部にはフランジ３５が一体に形成され、車輪用ハブユニットは、フランジ３５において、車体側部材、例えば、車両の懸架装置（図示しない）に支持されたナックル、又はキャリアの取付面にボルトによって連結されている。 Double row angular ball bearings 21 are assembled on the outer periphery of the hub shaft 15. That is, the outer race 30 is arranged with a predetermined gap with respect to both raceway surfaces 23 and 24 provided along the outer periphery of the hub axle 15, and both raceway surfaces 31 and 32 formed on the inner circumference surface of the outer race 30, A plurality of balls 40 and 41 as rolling elements are respectively incorporated between both raceway surfaces 23 and 24 of the hub shaft 15, and the plurality of balls 40 and 41 are held by the cages 42 and 43. Thus, an angular ball bearing 21 is configured.
As shown in FIG. 1, in the first embodiment, of both the raceway surfaces 23 and 24 provided on the outer peripheral surface of the hub shaft 15, the raceway surface 23 positioned on the flange 12 side of the hub shaft 15 is: The outer peripheral surface of the hub shaft 21 is formed by grinding, and the raceway surface 24 on the front end side of the hub shaft 15 is formed on the outer peripheral surface of the inner ring 22 fitted on the outer peripheral surface near the front end of the hub shaft 15. Yes.
The inner ring 22 is fixed by tightening a nut 17 to a male screw portion 16 formed coaxially from the shaft end of the hub shaft 15.
A flange 35 is integrally formed at the axial center of the outer peripheral surface of the outer ring 30, and the wheel hub unit is supported by a vehicle body side member, for example, a vehicle suspension device (not shown). The knuckle or carrier mounting surface is connected by bolts.

図１と図２に示すように、外輪３０の一端開口部には、合成樹脂製又は金属製のカバー部材５０が取り付けられている。
カバー部材５０は、筒状部５１と、蓋板部５５とを一体に有して有蓋筒状に形成され、その筒状部５１の開口側には、嵌合部５２と鍔部５３とがそれぞれ形成されている。そして、カバー部材５０は、筒状部５１の鍔部５３が外輪３０の一端面３０ａに当接する位置まで嵌合部５２が外輪３０の一端開口部の内周面に嵌込まれて装着され、これによって外輪３０の一端開口部が塞がれるようになっている。
なお、カバー部材５０は、その嵌合部５２において、外輪３０の一端開口部の内周面に圧入によって固定されたり、あるいは、鍔部５３を外輪３０の一端面３０ａに止めねじによって締め付けることによって固定することも可能である。 As shown in FIGS. 1 and 2, a synthetic resin or metal cover member 50 is attached to one end opening of the outer ring 30.
The cover member 50 has a cylindrical portion 51 and a lid plate portion 55 integrally formed, and is formed in a covered cylindrical shape. On the opening side of the cylindrical portion 51, a fitting portion 52 and a flange portion 53 are formed. Each is formed. The cover member 50 is mounted by fitting the fitting portion 52 into the inner peripheral surface of the one end opening of the outer ring 30 until the collar portion 53 of the cylindrical portion 51 contacts the one end surface 30a of the outer ring 30. As a result, the opening at one end of the outer ring 30 is closed.
In addition, the cover member 50 is fixed to the inner peripheral surface of the one end opening portion of the outer ring 30 by press-fitting in the fitting portion 52, or by tightening the flange portion 53 to the one end surface 30a of the outer ring 30 with a set screw. It is also possible to fix.

図１と図２に示すように、外輪３０とカバー部材５０との接触部の間には、吸水膨潤ゴムよりなる水膨潤性及び弾性を有するシールリング５７が配設されている。
この実施例１において、カバー部材５０の鍔部５３の下面に環状溝５６が形成され、この環状溝５６にシールリング５７が装着された状態で、外輪３０の一端開口部の内周面にカバー部材５０の嵌合部５２が嵌込まれて固定される。この状態でシールリング５７は、外輪３０の一端面３０ａとカバー部材５０の鍔部５３との接触部の間に介在されるようになっている。 As shown in FIGS. 1 and 2, a seal ring 57 having water swellability and elasticity made of water-absorbing swelling rubber is disposed between the contact portions of the outer ring 30 and the cover member 50.
In the first embodiment, an annular groove 56 is formed on the lower surface of the flange portion 53 of the cover member 50, and a cover is formed on the inner peripheral surface of the one end opening of the outer ring 30 with the seal ring 57 attached to the annular groove 56. The fitting part 52 of the member 50 is fitted and fixed. In this state, the seal ring 57 is interposed between the contact portion between the one end surface 30 a of the outer ring 30 and the flange portion 53 of the cover member 50.

上述したように構成されるこの実施例１に係る車輪用転がり軸受装置としての車輪用ハブユニットにおいて、外輪３０の一端面３０ａとカバー部材５０の鍔部５３との接触部の間の外側から雨水等の水分が浸入すると、その雨水等の水分がシールリング５７によって吸収される。
また、シールリング５７は、雨水等の水分を吸収することで膨潤し、これによって、外輪３０の一端面３０ａとカバー部材５０の鍔部５３との間のシール性が高められるため、シールリング５７よりも内部に雨水等の水分が不測に浸入することを良好に防止することができる。 In the wheel hub unit as the wheel rolling bearing device according to the first embodiment configured as described above, rainwater is formed from the outside between the contact portions between the one end surface 30a of the outer ring 30 and the flange portion 53 of the cover member 50. When water such as water enters, the water such as rainwater is absorbed by the seal ring 57.
Further, the seal ring 57 swells by absorbing moisture such as rainwater, and thereby, the sealing performance between the one end surface 30a of the outer ring 30 and the flange portion 53 of the cover member 50 is enhanced. It is possible to satisfactorily prevent moisture such as rainwater from entering the interior.

（実施例２）
次に、この発明の実施例２を図３と図４にしたがって説明する。
図３はこの発明の実施例２に係る車輪用転がり軸受装置としての車輪用ハブユニットを示す側断面図である。図４は速度センサの検出部とカバー部材の嵌挿孔との嵌合部分を拡大して示す断面図である。
この実施例２において、図３に示すように、内輪２２の端部外周面には、後述する速度センサ７０の検出部７１に対応する被検出部８３を有するパルサーリング８０が組み付けられている。このパルサーリング８０は、内輪２２の端部外周面に嵌込まれて固定される固定筒部８１と、固定筒部８１の先端において中心に向けて直角状に屈曲された先端リング部８２が一体に形成され、先端リング部８２の一側面には、周方向に交互に磁気特性が異なる着磁部を有して環状をなす被検出部８３が設けられている。 (Example 2)
Next, a second embodiment of the present invention will be described with reference to FIGS.
3 is a side sectional view showing a wheel hub unit as a wheel rolling bearing device according to Embodiment 2 of the present invention. FIG. 4 is an enlarged cross-sectional view showing a fitting portion between the detection portion of the speed sensor and the fitting insertion hole of the cover member.
In the second embodiment, as shown in FIG. 3, a pulsar ring 80 having a detected portion 83 corresponding to a detecting portion 71 of a speed sensor 70 described later is assembled on the outer peripheral surface of the end portion of the inner ring 22. In the pulsar ring 80, a fixed cylindrical portion 81 that is fitted and fixed to the outer peripheral surface of the end portion of the inner ring 22 and a distal end ring portion 82 that is bent at a right angle toward the center at the distal end of the fixed cylindrical portion 81 are integrated. And a to-be-detected portion 83 having an annular shape having magnetized portions having different magnetic characteristics alternately in the circumferential direction is provided on one side surface of the tip ring portion 82.

図３と図４に示すように、外輪３０の一端開口部に取り付けられたカバー部材５０の蓋板部５５には、速度センサ７０に対するセンサ取付部６０が形成され、このセンサ取付部６０の中央部に嵌挿孔６１が貫設されている。そして、速度センサ７０は、その検出部７１が嵌挿孔６１に嵌挿された状態でセンサ取付部６０の座面６０ａにビス等によって取り付けられ、これによって、検出部７１の先端検出面がパルサーリング８０の被検出部８３に臨むようになっている。   As shown in FIGS. 3 and 4, a sensor mounting portion 60 for the speed sensor 70 is formed on the cover plate portion 55 of the cover member 50 attached to one end opening of the outer ring 30, and the center of the sensor mounting portion 60 is formed. The fitting insertion hole 61 is penetrated by the part. The speed sensor 70 is attached to the seat surface 60a of the sensor attachment portion 60 with a screw or the like in a state where the detection portion 71 is inserted into the insertion hole 61, whereby the tip detection surface of the detection portion 71 is moved to the pulser. It faces the detected part 83 of the ring 80.

図４に示すように、カバー部材５０と速度センサ７０との接触部の間には、水膨潤性を有するシールリング６５が介在されている。
この実施例２において、カバー部材５０の嵌挿孔６１の内周面に環状溝６２が形成され、この環状溝６２にシールリング６５が装着された状態で、速度センサ７０の検出部７１が嵌挿されてカバー部材５０のセンサ取付部６０の座面６０ａに速度センサ７０が取り付けられる。この状態で、シールリング６５は、嵌挿孔６１と検出部７１との接触部の間に介在されるようになっている。 As shown in FIG. 4, a seal ring 65 having water swellability is interposed between contact portions between the cover member 50 and the speed sensor 70.
In the second embodiment, an annular groove 62 is formed in the inner peripheral surface of the fitting insertion hole 61 of the cover member 50, and the detection portion 71 of the speed sensor 70 is fitted in a state where the seal ring 65 is attached to the annular groove 62. The speed sensor 70 is attached to the seating surface 60 a of the sensor attachment portion 60 of the cover member 50 by being inserted. In this state, the seal ring 65 is interposed between contact portions between the fitting insertion hole 61 and the detection unit 71.

この実施例２のその他の構成は、前記実施例１と同様に構成されるため、同一構成部分に対し同一符号を付記してその説明は省略する。
したがって、この実施例２においても実施例１と同様にして外輪３０の一端面３０ａとカバー部材５０の鍔部５３との接触部の間の外側から雨水等の水分が浸入すると、その雨水等の水分がシールリング５７によって吸収される。
また、シールリング５７は、雨水等の水分を吸収することで膨潤し、これによって、外輪３０の一端面３０ａとカバー部材５０の鍔部５３との間のシール性が高められるため、シールリング５７よりも内部に雨水等の水分が不測に浸入することを良好に防止することができる。 Since other configurations of the second embodiment are configured in the same manner as the first embodiment, the same components are denoted by the same reference numerals, and description thereof is omitted.
Therefore, in the second embodiment, as in the first embodiment, when moisture such as rainwater enters from the outside between the contact portions between the one end face 30a of the outer ring 30 and the flange portion 53 of the cover member 50, the rainwater or the like Moisture is absorbed by the seal ring 57.
Further, the seal ring 57 swells by absorbing moisture such as rainwater, and thereby, the sealing performance between the one end surface 30a of the outer ring 30 and the flange portion 53 of the cover member 50 is enhanced. It is possible to satisfactorily prevent moisture such as rainwater from entering the interior.

特に、この実施例２においては、カバー部材５０の嵌挿孔６１と、速度センサ７０の検出部７１との接触部の間の外側から浸入した雨水等の水分は、水膨潤性を有するシールリング６５によって吸収される。このため、カバー部材５０と速度センサ７０との接触部の間においてもシール性が高められ、雨水等の水分が不測に浸入することを良好に防止することができる。   In particular, in the second embodiment, moisture such as rain water that has entered from the outside between the contact portion between the fitting insertion hole 61 of the cover member 50 and the detection portion 71 of the speed sensor 70 has a water-swellable seal ring. Absorbed by 65. For this reason, the sealing performance is enhanced even between the contact portions of the cover member 50 and the speed sensor 70, and it is possible to satisfactorily prevent water such as rainwater from entering unexpectedly.

なお、この発明は前記実施例１及び２に限定するものではない。
例えば、前記実施例１及び２においては、外輪３０の一端面３０ａとカバー部材５０の鍔部５３との接触部の間に水膨潤性を有するシールリング５７が介在された場合を例示したが、図５に示すように、外輪３０の一端開口部の内周面と、カバー部材５０の嵌合部５２の外周面との接触部の間に水膨潤性を有するシールリング５９が介在された場合においてもこの発明を実施することができる。この場合には、カバー部材５０の嵌合部５２の外周面に環状溝５８を形成し、この環状溝５８にシールリング５９を装着することが好ましい。
また、前記実施例２においては、カバー部材５０の嵌挿孔６１と、速度センサ７０の検出部７１との接触部の間に水膨潤性を有するシールリング６５が介在された場合を例示したが、カバー部材５０のセンサ取付部６０の座面６０ａと速度センサ７０の本体部との接触部の間に水膨潤性を有するシールリングが介在された場合においてもこの発明を実施することができる。
また、前記実施例１及び２においては、転がり軸受として、複列のアンギュラ玉軸受２１が採用された場合を例示したが、複列の円すいころ軸受けを用いてもこの発明を実施可能である。 The present invention is not limited to the first and second embodiments.
For example, in the first and second embodiments, the case where the seal ring 57 having water swellability is interposed between the contact portion between the one end surface 30a of the outer ring 30 and the flange portion 53 of the cover member 50 is illustrated. As shown in FIG. 5, when a seal ring 59 having water swellability is interposed between the inner peripheral surface of the one end opening of the outer ring 30 and the outer peripheral surface of the fitting portion 52 of the cover member 50. The present invention can also be implemented in In this case, it is preferable that an annular groove 58 is formed on the outer peripheral surface of the fitting portion 52 of the cover member 50 and a seal ring 59 is attached to the annular groove 58.
Moreover, in the said Example 2, although the case where the seal ring 65 which has water swelling property was interposed between the fitting insertion hole 61 of the cover member 50, and the detection part 71 of the speed sensor 70 was illustrated. Even when a seal ring having water swellability is interposed between the contact surface 60a of the sensor mounting portion 60 of the cover member 50 and the main body of the speed sensor 70, the present invention can be implemented.
Moreover, in the said Example 1 and 2, although the case where the double row angular ball bearing 21 was employ | adopted as a rolling bearing was illustrated, this invention can be implemented even if it uses a double row tapered roller bearing.

この発明の実施例１に係る車輪用転がり軸受装置としての車輪用ハブユニットを示す側断面図である。It is a sectional side view which shows the hub unit for wheels as a rolling bearing device for wheels which concerns on Example 1 of this invention. 同じく外輪の一端開口部とカバー部材との嵌合部分を拡大して示す断面図である。Similarly, it is sectional drawing which expands and shows the fitting part of the one end opening part of an outer ring | wheel, and a cover member. この発明の実施例２に係る車輪用転がり軸受装置としての車輪用ハブユニットを示す側断面図である。It is a sectional side view which shows the hub unit for wheels as a rolling bearing device for wheels which concerns on Example 2 of this invention. 同じく速度センサの検出部とカバー部材の嵌挿孔との嵌合部分を拡大して示す断面図である。Similarly it is sectional drawing which expands and shows the fitting part of the detection part of a speed sensor, and the fitting insertion hole of a cover member. 外輪の一端開口部の内周面と、カバー部材の嵌合部の外周面との接触部の間に水膨潤性を有するシールリングが介在された実施態様を拡大して示す断面図である。It is sectional drawing which expands and shows the embodiment in which the seal ring which has a water swelling property was interposed between the internal peripheral surface of the one end opening part of an outer ring | wheel, and the outer peripheral surface of the fitting part of a cover member.

符号の説明Explanation of symbols

１０ ハブホイール
１２ フランジ
１５ ハブ軸
２１ アンギュラ玉軸受（転がり軸受）
２２ 内輪
２３、２４ 軌道面
３０ 外輪
３１、３２ 軌道面
４０、４１ 玉
５０ カバー部材
５１ 筒状部
５２ 嵌合部
５３ 鍔部
５７、６５ シールリング
６０ センサ取付部
６１ 嵌挿孔
７０ 速度センサ
７１ 検出部
10 Hub Wheel 12 Flange 15 Hub Shaft 21 Angular Contact Ball Bearing (Rolling Bearing)
22 inner ring 23, 24 raceway surface 30 outer ring 31, 32 raceway surface 40, 41 ball 50 cover member 51 cylindrical part 52 fitting part 53 collar part 57, 65 seal ring 60 sensor mounting part 61 fitting insertion hole 70 speed sensor 71 detection Part

Claims (2)

車輪が組み付けられるフランジを有するハブホイールのハブ軸の外周面に、内輪と、外輪と、複数個の転動体とを備えた転がり軸受が組み付けられ、前記外輪の一端開口部にカバー部材が取り付けられた車輪用軸受装置であって、
前記外輪と前記カバー部材との接触部の間には、水膨潤性を有するシールリングが介在されていることを特徴とする車輪用軸受装置。 A rolling bearing having an inner ring, an outer ring, and a plurality of rolling elements is assembled to the outer peripheral surface of a hub shaft of a hub wheel having a flange to which the wheel is assembled, and a cover member is attached to one end opening of the outer ring. Wheel bearing device,
A wheel bearing device, wherein a seal ring having water swellability is interposed between contact portions of the outer ring and the cover member. 請求項１に記載の車輪用軸受装置であって、
カバー部材には、速度センサの検出部が嵌挿される嵌挿孔が形成され、
前記カバー部材と前記速度センサとの接触部の間には、水膨潤性を有するシールリングが介在されていることを特徴とする車輪用軸受装置。

The wheel bearing device according to claim 1,
The cover member is formed with an insertion hole into which the detection part of the speed sensor is inserted,
A wheel bearing device, wherein a seal ring having water swellability is interposed between contact portions of the cover member and the speed sensor.

JP2006149662A 2006-05-30 2006-05-30 Wheel rolling bearing device Pending JP2007321795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006149662A JP2007321795A (en) 2006-05-30 2006-05-30 Wheel rolling bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006149662A JP2007321795A (en) 2006-05-30 2006-05-30 Wheel rolling bearing device

Publications (1)

Publication Number Publication Date
JP2007321795A true JP2007321795A (en) 2007-12-13

Family

ID=38854801

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700099283A1 (en) * 2017-09-05 2019-03-05 Skf Ab SEALING DEVICE FOR HUB-WHEEL GROUP AND HUB-WHEEL GROUP EQUIPPED WITH THIS SEALING DEVICE
IT201700099285A1 (en) * 2017-09-05 2019-03-05 Skf Ab SEALING DEVICE FOR HUB-WHEEL GROUP AND HUB-WHEEL GROUP EQUIPPED WITH THIS SEALING DEVICE
KR20220036667A (en) * 2020-09-16 2022-03-23 주식회사 센트랄 Ball Joint with Water Expansion Water-Stop Material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700099283A1 (en) * 2017-09-05 2019-03-05 Skf Ab SEALING DEVICE FOR HUB-WHEEL GROUP AND HUB-WHEEL GROUP EQUIPPED WITH THIS SEALING DEVICE
IT201700099285A1 (en) * 2017-09-05 2019-03-05 Skf Ab SEALING DEVICE FOR HUB-WHEEL GROUP AND HUB-WHEEL GROUP EQUIPPED WITH THIS SEALING DEVICE
US11059323B2 (en) 2017-09-05 2021-07-13 Aktiebolaget Skf Sealing device for a hub/wheel assembly and hub/wheel assembly having such a sealing device
US11148467B2 (en) 2017-09-05 2021-10-19 Aktiebolaget Skf Sealing device for a hub/wheel assembly and hub/wheel assembly having such a sealing device
CN114893503A (en) * 2017-09-05 2022-08-12 斯凯孚公司 Sealing device for a wheel hub/wheel assembly and assembly having such a sealing device
KR20220036667A (en) * 2020-09-16 2022-03-23 주식회사 센트랄 Ball Joint with Water Expansion Water-Stop Material
KR102452180B1 (en) 2020-09-16 2022-10-11 주식회사 센트랄 Ball Joint with Water Expansion Water-Stop Material

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