JP2004169925A - Rolling bearing unit with sealing device - Google Patents

Rolling bearing unit with sealing device Download PDF

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Publication number
JP2004169925A
JP2004169925A JP2004000340A JP2004000340A JP2004169925A JP 2004169925 A JP2004169925 A JP 2004169925A JP 2004000340 A JP2004000340 A JP 2004000340A JP 2004000340 A JP2004000340 A JP 2004000340A JP 2004169925 A JP2004169925 A JP 2004169925A
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Japan
Prior art keywords
diameter side
ring
outer diameter
peripheral surface
equivalent member
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JP2004000340A
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Japanese (ja)
Inventor
Yoshihisa Onuki
善久 大貫
Hironari Miyazaki
裕也 宮崎
Yuji Nakamura
雄二 中村
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NSK Ltd
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NSK Ltd
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Priority to JP2004000340A priority Critical patent/JP2004169925A/en
Publication of JP2004169925A publication Critical patent/JP2004169925A/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
    • 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
    • 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
    • F16C33/7883—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 mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
    • 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
    • F16C19/185—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 two raceways provided integrally on a part other than a race ring, e.g. a shaft or housing
    • 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 structure capable of providing excellent sealing performance and sufficiently securing the effective width of a tone wheel 15. <P>SOLUTION: A support ring 17 is fixedly fitted to the end part inner peripheral surface of a rotating hub 1, and a tone wheel body 30 is fixed to a first outer diameter side circular ring part 23 forming the support ring 17. A second outer diameter side fitting tubular part 22 forming an outer diameter side core 18 is fitted into the first outer diameter side fitting tubular part 24 forming the support ring 17. The tip edges of seal lips 21a, 21b, and 21c fitted to the outer diameter side core 18 are brought into slidable contact with an inner diameter side core 19 fixedly fitted onto an inner ring 5. <P>COPYRIGHT: (C)2004,JPO

Description

この発明に係る密封装置及びトーンホイールを備えた転がり軸受ユニットは、例えば自動車の車輪、一般機械の回転軸等を回転自在に支持すると共に、センサと組み合わせる事により、この車輪或は回転軸等の回転速度を検出する為の回転速度検出装置を構成する。   The rolling bearing unit provided with the sealing device and the tone wheel according to the present invention rotatably supports, for example, a wheel of an automobile, a rotating shaft of a general machine, and the like, by combining with a sensor to form the wheel or the rotating shaft. A rotation speed detection device for detecting the rotation speed is configured.

例えば、自動車の車輪は転がり軸受ユニットにより懸架装置に対して回転自在に支持する。又、アンチロックブレーキ装置（ＡＢＳ）やトラクションコントロール装置（ＴＣＳ）を制御すべく車輪の回転速度を検出する為の回転速度検出装置を、上記転がり軸受ユニットに組み込む事も、従来から行なわれている。転がり軸受ユニットを使用してこの様な回転速度検出装置を構成する為には、転がり軸受ユニットを構成する内輪相当部材及び外輪相当部材のうち、自動車の走行時に回転する一方の部材（回転側軌道輪）に、円周方向に亙る特性が交互に且つ等間隔に変化するトーンホイールを組み込む必要がある。更に、上記転がり軸受ユニットには、内部に封入したグリースが漏洩する事を防止したり、或は外部に存在する異物が内部に入り込む事を防止する為の密封装置を組み込む必要がある。これに対して、軸受ユニットを組み込む為の空間の容積は限られている為、密封装置及びトーンホイールを備えた転がり軸受ユニットが大型化する事は避けなければならない。   For example, a vehicle wheel is rotatably supported by a rolling bearing unit with respect to a suspension. In addition, it has been conventionally performed to incorporate a rotation speed detecting device for detecting a rotation speed of a wheel into the rolling bearing unit to control an antilock brake device (ABS) or a traction control device (TCS). . In order to constitute such a rotation speed detecting device using the rolling bearing unit, one of the inner ring-equivalent member and the outer ring-equivalent member constituting the rolling bearing unit, which is one of the members (rotation side raceway) that rotates when the automobile is running. It is necessary to incorporate a tone wheel whose characteristics in the circumferential direction change alternately and at equal intervals. Furthermore, it is necessary to incorporate a sealing device into the rolling bearing unit to prevent the grease sealed therein from leaking or prevent foreign substances existing outside from entering the inside. On the other hand, since the volume of the space for incorporating the bearing unit is limited, it is necessary to avoid an increase in the size of the rolling bearing unit including the sealing device and the tone wheel.

この様な事情に鑑みて従来から、例えば特許文献１に記載されている様に、密封装置とトーンホイールとを組み合わせた構造を有する密封装置及びトーンホイールを備えた転がり軸受ユニットが提案されている。この公報に記載された従来構造の場合には、それぞれ断面Ｌ字形で全体を円環状に形成された芯金の先端縁にシールリップを結合した１対のシールリングにより、組み合わせシールリングである密封装置を構成している。又、トーンホイールは、使用時に回転する外輪相当部材に内嵌固定したシールリングの芯金の一部に内嵌固定している。   In view of such circumstances, conventionally, as described in Patent Document 1, for example, a sealing device having a structure in which a sealing device and a tone wheel are combined, and a rolling bearing unit including the tone wheel have been proposed. . In the case of the conventional structure described in this publication, a pair of seal rings in which a seal lip is coupled to a leading edge of a metal core having an L-shaped cross section and a ring shape as a whole, is a combined seal ring. Make up the device. In addition, the tone wheel is internally fixed to a part of the core of the seal ring which is internally fixed to a member corresponding to the outer ring which rotates during use.

特開平７−２６７０５９号公報JP-A-7-267059

上記特許文献１に記載された従来の密封装置及びトーンホイールを備えた転がり軸受ユニットは、組み合わせ作業時にシールリップが反転し易く、このシールリップの方向を所望の方向に保持しにくい。この為、シール性の確保が不確実になる。更には、トーンホイールの有効幅を確保しにくく、回転速度検出装置の出力を大きくしにくい、等の問題を生じる。
本発明の密封装置及びトーンホイールを備えた転がり軸受ユニットは、この様な不都合を解消すべく発明したものである。 In the rolling bearing unit provided with the conventional sealing device and the tone wheel described in Patent Document 1, the seal lip is easily inverted during the assembling work, and it is difficult to maintain the direction of the seal lip in a desired direction. For this reason, it is uncertain how to secure the sealing performance. Further, problems such as difficulty in securing the effective width of the tone wheel and difficulty in increasing the output of the rotation speed detecting device arise.
The rolling bearing unit provided with the sealing device and the tone wheel of the present invention has been invented in order to solve such inconvenience.

本発明の密封装置及びトーンホイールを備えた転がり軸受ユニットは、従来から知られている密封装置及びトーンホイールを備えた転がり軸受ユニットと同様に、内周面に外輪軌道を有し、使用時に回転する外輪相当部材と、外周面に内輪軌道を有し、使用時に回転しない内輪相当部材と、上記外輪軌道と内輪軌道との間に転動自在に設けられた複数の転動体と、上記外輪相当部材の端部内周面と上記内輪相当部材の端部外周面との間に設けられて、これら両周面同士の間に存在する空間の端部開口を塞ぐ密封装置と、上記外輪相当部材の端部内周面に支持されてこの外輪相当部材と共に回転する、磁気的性質を円周方向に亙り交互に且つ等間隔で変化させた円環状のトーンホイールとから構成される。
特に、本発明の密封装置及びトーンホイールを備えた転がり軸受ユニットに於いては、第一の外径側嵌合筒部及びこの第一の外径側嵌合筒部の端縁から直径方向内方に折れ曲がった第一の外径側円輪部を有し、上記第一の外径側嵌合筒部を上記外輪相当部材の端部内周面に内嵌する事によりこの外輪相当部材に固定された支持環と、第二の外径側嵌合筒部及びこの第二の外径側嵌合筒部の端縁から直径方向内方に折れ曲がった第二の外径側円輪部を有し、上記第二の外径側嵌合筒部を上記第一の外径側嵌合筒部に内嵌する事により上記外輪相当部材に固定された外径側芯金と、内径側嵌合筒部及びこの内径側嵌合筒部の端縁から直径方向外方に折れ曲がった内径側円輪部を有し、上記内径側嵌合筒部を上記内輪相当部材の端部外周面に外嵌する事によりこの内輪相当部材に固定された内径側芯金と、この内径側芯金と上記外径側芯金との少なくとも一方にその基端部を添着固定され、その先端部を当該芯金が対向する部材の表面に摺接させたシールリップと、上記第一の外径側円輪部を含んで構成されるトーンホイールとを備える。 The rolling bearing unit including the sealing device and the tone wheel of the present invention has an outer raceway on the inner peripheral surface and rotates during use, similarly to the conventionally known rolling device including the sealing device and the tone wheel. An outer race-equivalent member, an inner race-equivalent member having an inner raceway on an outer peripheral surface and not rotating during use, a plurality of rolling elements rotatably provided between the outer raceway and the inner raceway, and an outer race-equivalent course A sealing device that is provided between an inner peripheral surface of an end portion of the member and an outer peripheral surface of an end portion of the member corresponding to the inner ring, and seals an end opening of a space existing between these two peripheral surfaces; An annular tone wheel which is supported on the inner peripheral surface of the end portion and rotates together with the member corresponding to the outer ring, has an annular tone wheel whose magnetic properties are changed alternately at regular intervals in the circumferential direction.
In particular, in the rolling bearing unit provided with the sealing device and the tone wheel of the present invention, the first outer-diameter side fitting cylinder and the diametrically inner side from the edge of the first outer-diameter side fitting cylinder. It has a first outer diameter side annular portion bent to the side, and is fixed to this outer ring equivalent member by internally fitting the first outer diameter side fitting cylindrical portion to the inner peripheral surface at the end portion of the outer ring equivalent member. A support ring, a second outer diameter side fitting cylinder, and a second outer diameter side annular part bent radially inward from an edge of the second outer diameter fitting cylinder. The outer diameter side core fixed to the outer ring equivalent member by internally fitting the second outer diameter side fitting cylinder to the first outer diameter side fitting cylinder, and the inner diameter side fitting A cylindrical portion and an inner-diameter side annular portion bent radially outward from an end edge of the inner-diameter side fitting cylindrical portion, and the inner-diameter side fitting cylindrical portion is externally fitted to an end outer peripheral surface of the inner ring-equivalent member; You The inner core fixed to the inner ring-equivalent member, and the base end is fixedly attached to at least one of the inner core and the outer core, and the distal end is fixed to the core. A seal lip slidably in contact with the surface of the opposing member, and a tone wheel including the first outer-diameter circular portion.

上述の様に構成される本発明の密封装置及びトーンホイールを備えた転がり軸受ユニットの場合には、トーンホイールを構成する第一の外径側円輪部の外周縁位置が、外輪相当部材の内周面にまで達するので、このトーンホイールの有効幅寸法を大きくできる。又、組立時にシールリップの方向が反転する事を確実に防止できるので、密封装置のシール性を確保できる。更に、弾性材の一部を支持環の一部に、全周に亙って弾性的に当接させれば、この支持環と外径側芯金との嵌合部を密封して、この嵌合部のシール性を十分に確保できる。   In the case of the rolling bearing unit provided with the sealing device and the tone wheel of the present invention configured as described above, the outer peripheral edge position of the first outer diameter side annular portion constituting the tone wheel is set to the outer ring equivalent member. Since it reaches the inner peripheral surface, the effective width of the tone wheel can be increased. In addition, since the direction of the seal lip can be reliably prevented from being reversed at the time of assembly, the sealing performance of the sealing device can be ensured. Furthermore, if a part of the elastic material is brought into elastic contact with a part of the support ring over the entire circumference, the fitting portion between the support ring and the outer diameter side metal core is sealed, and The sealing performance of the fitting portion can be sufficiently ensured.

本発明の密封装置及びトーンホイールを備えた転がり軸受ユニットは、以上に述べた通り構成され作用するので、優れたシール性を確保すると共にトーンホイールに対向して設けられるセンサの出力を大きくできる。   Since the rolling bearing unit including the sealing device and the tone wheel of the present invention is configured and operates as described above, it is possible to ensure excellent sealing performance and increase the output of a sensor provided to face the tone wheel.

本発明を実施する場合に好ましくは、請求項２に記載した様に、シールリップを外径側芯金に添着すると共に、このシールリップを構成する弾性材の一部を支持環の一部に、全周に亙って弾性的に当接させる。   In the case of carrying out the present invention, preferably, as described in claim 2, the seal lip is attached to the outer diameter side core bar, and a part of the elastic material constituting the seal lip is part of the support ring. , And elastically contact the entire circumference.

図１〜３は、本発明の実施例１を示している。外輪相当部材であるハブ１は、内周面に複列の外輪軌道２、２を有する。又、このハブ１の外周面外寄り（外とは、自動車への組み付け状態で幅方向外側となる部分を言い、図１で左）部分には、車輪を支持する為のフランジ３を設けている。図示しない車輪は、このフランジ３に固設したスタッド４により、このフランジ３に結合固定される。従って上記ハブ１は、自動車の走行に伴って、上記車輪と共に回転する。   1 to 3 show a first embodiment of the present invention. The hub 1, which is an outer ring equivalent member, has double rows of outer ring raceways 2, 2 on the inner peripheral surface. Further, a flange 3 for supporting wheels is provided on the outer side of the outer peripheral surface of the hub 1 (the outer side is a part which is outward in the width direction when assembled to an automobile, and left in FIG. 1). I have. A wheel (not shown) is fixedly connected to the flange 3 by a stud 4 fixed to the flange 3. Therefore, the hub 1 rotates together with the wheels as the vehicle travels.

上記ハブ１の内側には、１対の内輪５、５を、このハブ１と同心に配置している。これら両内輪５、５の外周面には、それぞれ上記外輪軌道２、２と対向する内輪軌道６、６を形成している。自動車への組み付け状態でこれら両内輪５、５は、懸架装置に支持された車軸７の先端部に外嵌される。そして、この車軸７の中間部に形成した段部８と、この車軸７の先端に螺合したナット９との間で挟持されて、この車軸７に対し固定される。従って上記各内輪５、５は、自動車の走行時にも回転する事はない。尚、上記ハブ１の外端開口部は、ナット９の螺合緊締作業の後、蓋体１０を嵌着する事により塞ぐ。   Inside the hub 1, a pair of inner rings 5, 5 are arranged concentrically with the hub 1. Inner ring raceways 6, 6 facing the outer raceways 2, 2 are formed on the outer peripheral surfaces of the inner races 5, 5, respectively. In a state of being assembled to the automobile, the inner rings 5, 5 are fitted around the tip of the axle 7 supported by the suspension device. The axle 7 is clamped between a step 8 formed at an intermediate portion of the axle 7 and a nut 9 screwed to the tip of the axle 7 and fixed to the axle 7. Therefore, the inner rings 5, 5 do not rotate even when the automobile is running. Note that the outer end opening of the hub 1 is closed by fitting a cover 10 after the nut 9 is screwed and tightened.

又、上記ハブ１内周面の外輪軌道２、２と上記各内輪５、５外周面の内輪軌道６、６との間には、転動体である玉１１、１１を、各列毎に複数ずつ設けている。これら各玉１１、１１は、保持器１２、１２により、円周方向に互いに間隔をあけた状態で、転動自在に保持されている。従って上記ハブ１は、上記車軸７の周囲に回転自在に支持されている。尚、重量の嵩む自動車用の転がり軸受ユニットの場合には、転動体として、玉１１、１１に代えてテーパころを使用する場合もある。   Between the outer raceways 2 and 2 on the inner peripheral surface of the hub 1 and the inner raceways 6 and 6 on the inner races 5 and 5, balls 11, 11 which are rolling elements, are provided for each row. Are provided. These balls 11, 11 are held by the retainers 12, 12 so as to roll freely in a state of being spaced apart from each other in the circumferential direction. Therefore, the hub 1 is rotatably supported around the axle 7. In the case of a heavy-weight rolling bearing unit for an automobile, a tapered roller may be used instead of the balls 11 and 11 as the rolling element.

更に、上記ハブ１の内端部（内とは、自動車への組み付け状態で幅方向中央側となる部分を言い、図１で右）内周面と、上記１対の内輪５、５のうちで内側の内輪５の内端部周面との間には、密封装置１３を設けて、これらハブ１の内周面と内輪５、５の外周面との間に存在する空間１４の内端部開口を塞いでいる。更に、この密封装置１３の内側面に、円環状のトーンホイール１５を添設している。そして、このトーンホイール１５の内側面に、上記車軸７の基部に支持したセンサ１６を対向させる事により、回転速度検出装置を構成している。   Further, an inner end portion of the hub 1 (the inner portion is a portion located on the center in the width direction when assembled to an automobile, and is a right side in FIG. 1) and an inner peripheral surface of the pair of inner rings 5, 5 A sealing device 13 is provided between the inner peripheral surface of the inner ring 5 and the inner peripheral surface of the inner ring 5, and an inner end of a space 14 existing between the inner peripheral surface of the hub 1 and the outer peripheral surface of the inner rings 5, 5. The opening of the part is closed. Further, an annular tone wheel 15 is additionally provided on the inner surface of the sealing device 13. The sensor 16 supported on the base of the axle 7 is opposed to the inner surface of the tone wheel 15 to constitute a rotation speed detecting device.

上記密封装置１３は、それぞれが軟鋼板等の金属板をプレス加工する事により、断面Ｌ字形で全体を円環状に造られた、支持環１７、外径側芯金１８、内径側芯金１９と、ゴム、エラストマー等の弾性材２９により造られて上記外径側芯金１８に全周に亙って添設された、シールリップ２１ａ、２１ｂ、２１ｃとから構成される。   Each of the sealing devices 13 is formed by pressing a metal plate such as a mild steel plate into an annular shape with an L-shaped cross section. And seal lips 21a, 21b, 21c made of an elastic material 29 such as rubber or elastomer and attached to the outer diameter core 18 over the entire circumference.

このうちの支持環１７は、第一の外径側嵌合筒部２２及びこの第一の外径側嵌合筒部２２の内端縁から直径方向内方に折れ曲がった第一の外径側円輪部２３を有する。そして、この様な支持環１７は、上記第一の外径側嵌合筒部２２を上記ハブ１の内端部内周面に内嵌する事により、このハブ１の内端部内周面に固定されている。   The support ring 17 includes a first outer diameter side fitting cylinder 22 and a first outer diameter side bent radially inward from the inner end edge of the first outer diameter side fitting cylinder 22. It has a ring portion 23. The support ring 17 is fixed to the inner peripheral surface of the inner end portion of the hub 1 by fitting the first outer diameter side fitting cylindrical portion 22 to the inner peripheral surface of the inner end portion of the hub 1. Have been.

又、上記外径側芯金１８は、第二の外径側嵌合筒部２４及びこの第二の外径側嵌合筒部２４の外端縁から直径方向内方に折れ曲がった第二の外径側円輪部２５を有する。そして、この様な外径側芯金１８は、上記第二の外径側嵌合筒部２４を上記支持環１７を構成する第一の外径側嵌合筒部２２に内嵌する事により、この支持環１７を介して、上記ハブ１に固定されている。尚、上記第一の外径側嵌合筒部２２に内嵌する作業を容易に行なえる様にすべく、上記第二の外径側嵌合筒部２４の内端部外周縁には、面取り部２６ａを形成している。   Further, the outer diameter side core metal 18 is bent inward in the diameter direction from the second outer diameter side fitting cylinder portion 24 and the outer end edge of the second outer diameter side fitting cylinder portion 24. An outer diameter side annular portion 25 is provided. The outer diameter side core metal 18 is formed by internally fitting the second outer diameter side fitting cylinder portion 24 to the first outer diameter side fitting cylinder portion 22 constituting the support ring 17. Is fixed to the hub 1 through the support ring 17. In addition, in order to easily perform the work of internally fitting to the first outer diameter side fitting cylinder 22, an inner end outer peripheral edge of the second outer diameter side fitting cylinder 24 is provided. A chamfer 26a is formed.

又、上記内径側芯金１９は、内径側嵌合筒部２７及びこの内径側嵌合筒部２７の内端縁から直径方向外方に折れ曲がった内径側円輪部２８を有する。そして、上記内径側嵌合筒部２７を前記内側の内輪５の内端部外周面に外嵌する事により、この内輪５に固定している。尚、上記内輪５に外嵌する作業を容易に行なえる様にすべく、上記内径側嵌合筒部２７の内端部内周縁には、面取り部２６ｂを形成している。   Further, the inner diameter side core metal 19 has an inner diameter side fitting cylindrical portion 27 and an inner diameter side annular portion 28 bent radially outward from an inner end edge of the inner diameter side fitting cylindrical portion 27. Then, the inner diameter side fitting cylindrical portion 27 is externally fitted to the inner peripheral portion outer peripheral surface of the inner inner ring 5 to be fixed to the inner ring 5. In addition, a chamfered portion 26b is formed on the inner peripheral edge of the inner end portion of the inner diameter side fitting cylindrical portion 27 so that the work of externally fitting the inner ring 5 can be easily performed.

又、前記シールリップ２１ａ、２１ｂ、２１ｃを構成する弾性材２９は、上記外径側芯金１８に添着されている。即ち、この弾性材２９は、この外径側芯金１８を構成する第二の外径側嵌合筒部２４の先端縁（内端縁を指し、図２の右端縁）及び内周面と、同じく第二の外径側円輪部２５の内側面全体及び先端部（図２の下端部）両面を覆う状態で、上記外径側芯金１８に添着されている。そして、上記各シールリップ２１ａ、２１ｂ、２１ｃは、この弾性材２９の内周寄り部分から、上記内径側芯金１９に向け延出されている。そして、これら３本のシールリップ２１ａ、２１ｂ、２１ｃのうち、内径側に突出した２本のシールリップ２１ａ、２１ｂの先端縁は、上記内径側芯金１９を構成する内径側嵌合筒部２７の外周面に摺接させている。尚、上記シールリップ２１ａは、上記内径側嵌合筒部２７の外端縁、或は内輪５の外周面に摺接させる事もできる。又、内側に突出した残りのシールリップ２１ｃの先端縁は、上記内径側芯金１９を構成する内径側円輪部２８の外側面に摺接させている。尚、これら各シールリップ２１ａ、２１ｂ、２１ｃは、それぞれ外部空間から前記空間１４内への異物進入防止を図る作用を高めるべく、進入経路外側に突出する方向に傾斜させている。尚、進入経路に関し、外部空間から最も遠いリップ２１ａの傾斜方向は、図示の例とは逆（内向き）であっても良い。又、上記各シールリップ２１ａ、２１ｂ、２１ｃを構成する為の弾性材２９の一部で、上記第二の外径側嵌合筒部２４の先端縁を覆う部分は、前記支持環１７を構成する第一の外径側円輪部２３の外側面外周側端部に突き当てている。従って、これら支持環１７と外径側芯金１８との嵌合部の密封作用も、確実に図られる。   The elastic material 29 constituting the seal lips 21a, 21b, 21c is attached to the outer diameter side metal core 18. That is, the elastic member 29 is formed between the front edge (indicating the inner edge, the right edge in FIG. 2) and the inner peripheral surface of the second outer-diameter fitting cylinder 24 constituting the outer-diameter core 18. Similarly, the second outer diameter side annular portion 25 is attached to the outer diameter side metal core 18 in a state of covering the entire inner surface and both ends (the lower end portion in FIG. 2). Each of the seal lips 21a, 21b, and 21c extends from the portion of the elastic member 29 closer to the inner periphery toward the inner core 19. Of the three seal lips 21a, 21b, and 21c, the tip edges of the two seal lips 21a and 21b protruding toward the inner diameter side are connected to the inner diameter side fitting cylindrical portion 27 that constitutes the inner diameter side metal core 19. Is in sliding contact with the outer peripheral surface. Incidentally, the seal lip 21a may be brought into sliding contact with the outer edge of the inner diameter side fitting cylindrical portion 27 or the outer peripheral surface of the inner ring 5. Further, the distal end edge of the remaining seal lip 21c protruding inward is slidably in contact with the outer surface of the inner diameter side annular portion 28 constituting the inner diameter side core 19. Each of these seal lips 21a, 21b, 21c is inclined in a direction to protrude outside the entrance path in order to enhance the effect of preventing foreign substances from entering the space 14 from the external space. In addition, regarding the approach path, the inclination direction of the lip 21a farthest from the external space may be opposite (inward) to the illustrated example. A part of the elastic material 29 for forming the seal lips 21a, 21b, and 21c and covering the distal end edge of the second outer diameter side fitting tubular portion 24 constitutes the support ring 17. The outer peripheral surface of the first outer-diameter-side annular portion 23 abuts on the outer peripheral-side end. Therefore, the sealing action of the fitting portion between the support ring 17 and the outer diameter side metal core 18 is reliably achieved.

更に、上記支持環１７を構成する第一の外径側円輪部２３の内側面には、円輪状のトーンホイール本体３０を添着し、上記第一の外径側円輪部２３を含むトーンホイール１５を構成している。上記トーンホイール本体３０は、ゴム磁石、プラスチック磁石、フェライト磁石等の永久磁石で、少なくとも内側面にはＳ極とＮ極とを、図３に示す様に円周方向に亙って交互に、且つ等間隔で配置している。この様なトーンホイール本体３０は、上記第一の外径側円輪部２３の内側面に、焼き付け、接着、自身の磁気吸着力等により添着固定している。   Further, a ring-shaped tone wheel main body 30 is attached to an inner surface of the first outer diameter side annular portion 23 constituting the support ring 17, and the tone including the first outer diameter side annular portion 23 is provided. The wheel 15 is constituted. The tone wheel main body 30 is a permanent magnet such as a rubber magnet, a plastic magnet, or a ferrite magnet, and has at least an S pole and an N pole on the inner surface alternately in the circumferential direction as shown in FIG. They are arranged at equal intervals. Such a tone wheel main body 30 is attached and fixed to the inner surface of the first outer diameter side annular portion 23 by baking, bonding, own magnetic attraction force, or the like.

上述の様に構成される本発明の密封装置及びトーンホイールを備えた転がり軸受ユニットの場合には、トーンホイール本体３０と共にトーンホイール１５を構成する第一の外径側円輪部２３の外周縁位置が、ハブ１の内周面にまで達するので、このトーンホイール１５を構成する上記トーンホイール本体３０の有効幅寸法（図２〜３の上下方向寸法）を大きくできる。従って、このトーンホイール本体３０の内側面と対向する前記センサ１６の出力を大きくして、車輪等の回転する部材の回転速度検出の信頼性を向上させたり、或は信号の処理回路の低廉化を図る事ができる。   In the case of the rolling bearing unit including the sealing device and the tone wheel of the present invention configured as described above, the outer peripheral edge of the first outer diameter side annular portion 23 that forms the tone wheel 15 together with the tone wheel main body 30. Since the position reaches the inner peripheral surface of the hub 1, the effective width dimension (the vertical dimension in FIGS. 2 and 3) of the tone wheel main body 30 constituting the tone wheel 15 can be increased. Therefore, the output of the sensor 16 facing the inner surface of the tone wheel body 30 is increased to improve the reliability of detecting the rotation speed of a rotating member such as a wheel, or to reduce the cost of a signal processing circuit. Can be planned.

又、組立時に前記各シールリップ２１ａ、２１ｂ、２１ｃの方向が反転する事を確実に防止できるので、密封装置１３のシール性を確保できる。即ち、本発明の密封装置及びトーンホイールを備えた転がり軸受ユニットを組み立てる場合には、先ず、シールリップ２１ａ、２１ｂ、２１ｃを添着した外径側芯金１８と内径側芯金１９とを、図２に示した位置関係に組み合わせる。この組み合わせ作業の際には、上記各シールリップ２１ａ、２１ｂを治具（図示せず）により案内するので、これら両シールリップ２１ａ、２１ｂの方向が反転する事はない。又、残りのシールリップ２１ｃには、このシールリップ２１ｃの方向を反転させる方向の力が作用しない為、このシールリップ２１ｃも反転する事はない。   Further, since the directions of the seal lips 21a, 21b, 21c can be reliably prevented from being reversed during assembly, the sealing performance of the sealing device 13 can be ensured. That is, when assembling the rolling bearing unit including the sealing device and the tone wheel of the present invention, first, the outer diameter side metal core 18 and the inner diameter side metal core 19 to which the seal lips 21a, 21b, 21c are attached are illustrated in FIG. Combine with the positional relationship shown in 2. During the combination work, the seal lips 21a and 21b are guided by a jig (not shown), so that the directions of the seal lips 21a and 21b are not reversed. Further, since no force acts in the direction of reversing the direction of the seal lip 21c on the remaining seal lip 21c, the seal lip 21c does not reverse.

この様にして外径側芯金１８と内径側芯金１９とを組み合わせたならば、次いで、上記外径側芯金１８を構成する第二の外径側嵌合筒部２４を、前記支持環１７を構成する第一の外径側嵌合筒部２２に内嵌固定する。この結果、支持環１７と外径側、内径側両芯金１８、１９とが、図２に示す様な位置関係に組み合わされる。そこで、これら各部材１７〜１９を、前記空間１４の内端開口部に対向させ、上記支持環１７をハブ１の内端部に内嵌すると同時に、上記内径側芯金１９を内輪５に外嵌固定する。上記支持環１７をハブ１の内端部に内嵌固定する作業は、前記トーンホイール本体３０の内側面に治具の先端面を突き当てる事により、上記内径側芯金１９を内輪５に外嵌固定する作業は、前記内径側円輪部２８の内側面内周寄り部分に治具の先端面を突き当てる事により、それぞれ行なう。この様に内嵌固定作業と外嵌固定作業とを同時に行なう事により、図１〜２に示した様な密封装置及びトーンホイールを備えた転がり軸受ユニットを得られる。   After the outer diameter core 18 and the inner diameter core 19 are combined in this manner, then, the second outer diameter fitting cylindrical portion 24 constituting the outer diameter core 18 is supported by the supporter. The ring 17 is internally fitted and fixed to the first outer diameter side fitting cylindrical portion 22. As a result, the support ring 17 and the outer diameter side and inner diameter side cores 18 and 19 are combined in a positional relationship as shown in FIG. Therefore, these members 17 to 19 are opposed to the inner end opening of the space 14, and the support ring 17 is fitted inside the inner end of the hub 1, and at the same time, the inner core metal 19 is attached to the inner race 5. Fit and fix. The work of fixing the support ring 17 to the inner end portion of the hub 1 is performed by abutting the tip surface of the jig against the inner surface of the tone wheel main body 30 so that the inner diameter side metal core 19 is attached to the inner race 5. The work of fitting and fixing is performed by abutting the tip end surface of the jig against the inner peripheral portion of the inner surface of the inner side annular portion 28. By simultaneously performing the inner fitting fixing operation and the outer fitting fixing operation as described above, a rolling bearing unit having a sealing device and a tone wheel as shown in FIGS.

上述の様に本発明の密封装置１３及びトーンホイールを備えた転がり軸受ユニットの場合には、組立時にシールリップ２１ａ、２１ｂ、２１ｃの方向が反転する事を確実に防止できるので、密封装置１３のシール性を確保できる。更に、これら各シールリップ２１ａ、２１ｂ、２１ｃを構成する為の弾性材２９の一部を、上記第二の外径側嵌合筒部２４の先端縁と第一の外径側円輪部２３の外側面との間で、全周に亙って弾性的に挟持しているので、この支持環１７と外径側芯金１８との嵌合部を密封して、この嵌合部のシール性を十分に確保できる。従って、上記第一、第二の外径側円輪部２３、２５同士の間に入り込んだ雨水等の異物が、遠心力により上記第二の外径側嵌合筒部２４の内周面に押し付けられた場合でも、この異物が前記空間１４内にまで入り込む事はない。又、上記空間１４内に封入したグリース等の潤滑材がシールリップ２１ｃを通過して漏出しても、この潤滑材は第一の外径側円輪部２３により外部に流出するのを阻止される。更に、トーンホイール本体３０をゴム磁石等の弾性を有する構造とした場合には、このトーンホイール本体３０の外周縁部にリップ３２を形成し、このリップ３２をハブ１の端部内周面と支持環１７の端部外周面との間で、全周に亙って弾性的に挟持すれば、これらハブ１と支持環１７との嵌合部を密封できる。   As described above, in the case of the rolling bearing unit including the sealing device 13 and the tone wheel of the present invention, the direction of the sealing lips 21a, 21b, and 21c can be reliably prevented from being reversed during assembly. Sealability can be ensured. Further, a part of the elastic member 29 for forming each of the seal lips 21a, 21b, 21c is connected to the distal end edge of the second outer diameter side fitting cylindrical portion 24 and the first outer diameter side annular portion 23. Between the support ring 17 and the outer-diameter-side metal core 18, and the seal of the fitting portion is sealed. Nature can be sufficiently secured. Therefore, foreign matter such as rainwater that has entered between the first and second outer diameter side annular portions 23 and 25 is centrifugally applied to the inner peripheral surface of the second outer diameter side fitting cylindrical portion 24. Even when pressed, the foreign matter does not enter the space 14. Also, even if a lubricant such as grease sealed in the space 14 leaks through the seal lip 21c, the lubricant is prevented from flowing out to the outside by the first outer-diameter annular portion 23. You. Further, when the tone wheel main body 30 has an elastic structure such as a rubber magnet, a lip 32 is formed on the outer peripheral edge of the tone wheel main body 30, and the lip 32 is supported on the inner peripheral surface of the end of the hub 1. If the hub 1 and the outer peripheral surface of the ring 17 are elastically sandwiched over the entire circumference, the fitting portion between the hub 1 and the support ring 17 can be sealed.

次に、図４は、本発明の実施例２を示している。本例の場合には、シールリップ２１ａ、２１ｂ、２１ｃを構成する為の弾性材２９を、外径側芯金１８を構成する第二の外径側円輪部２５の外側面全体に亙って添着している。そして、この弾性材２９の外周縁を、支持環１７を構成する第一の外径側嵌合筒部２２の先端部（外端部を指し、図４の左端部）内周面と、上記外径側芯金１８の折れ曲がり部の外周面との間で、全周に亙り弾性的に挟持している。この様に、上記先端部内周縁と折れ曲がり部との間で挟持された弾性材２９が、異物が空間１４に入り込む事を防止する。その他の構成及び作用は、上述した実施例１の場合と同様である。   Next, FIG. 4 shows a second embodiment of the present invention. In the case of this example, the elastic material 29 for forming the seal lips 21a, 21b, and 21c is applied to the entire outer surface of the second outer-diameter annular portion 25 that forms the outer-diameter core 18. Is attached. Then, the outer peripheral edge of the elastic member 29 is connected to the inner peripheral surface of the distal end portion (refers to the outer end portion, the left end portion in FIG. 4) of the first outer diameter side fitting cylindrical portion 22 constituting the support ring 17. It is elastically sandwiched over the entire circumference between the outer peripheral surface of the bent portion of the outer diameter side metal core 18 and the bent portion. In this manner, the elastic member 29 sandwiched between the inner peripheral edge of the distal end portion and the bent portion prevents foreign matter from entering the space 14. Other configurations and operations are the same as those in the first embodiment.

次に、図５は、本発明の実施例３を示している。本例の場合には、外径側芯金１８を構成する第二の外径側円輪部２５の内周縁部にシールリップ２１ａを添着すると共に、内径側芯金１９を構成する内径側円輪部２８の外周縁部にシールリップ２１ｂ、２１ｃを添着している。そして、シールリップ２１ａの先端縁を内径側嵌合筒部２７の外周面に、シールリップ２１ｂの先端縁を第二の外径側円輪部２５の内側面に、シールリップ２１ｃの先端縁を第二の外径側嵌合筒部２４の内周面に、それぞれ全周に亙り摺接させている。その他の構成及び作用は、上述した実施例２の場合と同様である。   Next, FIG. 5 shows a third embodiment of the present invention. In the case of this example, the seal lip 21a is attached to the inner peripheral edge of the second outer-diameter annular portion 25 constituting the outer-diameter core 18 and the inner-diameter circle forming the inner-diameter core 19. Seal lips 21b and 21c are attached to the outer peripheral edge of the ring portion 28. Then, the tip edge of the seal lip 21a is attached to the outer peripheral surface of the inner diameter side fitting cylindrical portion 27, the tip edge of the seal lip 21b is attached to the inner surface of the second outer annular portion 25, and the tip edge of the seal lip 21c is attached. The inner peripheral surface of the second outer diameter side fitting cylindrical portion 24 is slidably contacted all around. Other configurations and operations are the same as those of the second embodiment.

次に、図６〜７は、本発明の実施例４を示している。本例の場合には、支持環１７を構成する第一の外径側円輪部２３に、この第一の外径側円輪部２３の直径方向に長い矩形の透孔３１、３１を、円周方向に亙って互いに等間隔に、多数形成している。この様に多数の透孔３１、３１を形成する事により、上記第一の外径側円輪部２３自体を、磁気的性質を円周方向に亙り交互に且つ等間隔で変化させた円環状のトーンホイール１５としている。その他の構成及び作用は、前述した実施例１の場合と同様である。   Next, FIGS. 6 and 7 show a fourth embodiment of the present invention. In the case of this example, rectangular through holes 31, 31 long in the diameter direction of the first outer diameter side annular portion 23 are formed in the first outer diameter side annular portion 23 configuring the support ring 17. A large number of them are formed at regular intervals in the circumferential direction. By forming a large number of through-holes 31 in this manner, the first outer-diameter-side annular portion 23 itself is formed into an annular shape in which the magnetic properties are changed alternately and at equal intervals in the circumferential direction. The tone wheel 15 of FIG. Other configurations and operations are the same as those of the first embodiment.

次に、図８は、本発明の実施例５を示している。本例の場合には、支持環１７を軟鋼板等の強磁性材により造ると共に、この支持環１７を構成する第一の外径側円輪部２３を着磁している。着磁方向は、円周方向に亙って交互に、且つ等間隔で変化させている。従って上記第一の外径側円輪部２３の内側面には、前記図３に示した様に、Ｓ極とＮ極とが円周方向に亙って交互に、且つ等間隔で配置される。この様に上記第一の外径側円輪部２３自体を着磁する事により、上記第一の外径側円輪部２３自体を、磁気的性質を円周方向に亙り交互に且つ等間隔で変化させた円環状のトーンホイール１５としている。その他の構成及び作用は、前述した実施例１の場合と同様である。   Next, FIG. 8 shows a fifth embodiment of the present invention. In the case of this example, the support ring 17 is made of a ferromagnetic material such as a mild steel plate, and the first outer-diameter-side annular portion 23 constituting the support ring 17 is magnetized. The magnetization directions are changed alternately at regular intervals in the circumferential direction. Therefore, on the inner surface of the first outer diameter side annular portion 23, as shown in FIG. 3, S poles and N poles are arranged alternately at equal intervals in the circumferential direction. You. By magnetizing the first outer-diameter-side annular portion 23 itself, the first outer-diameter-side annular portion 23 itself is alternately and equally-spaced in a magnetic property in the circumferential direction. The ring-shaped tone wheel 15 is changed. Other configurations and operations are the same as those of the first embodiment.

本発明の実施例１を示す断面図。FIG. 1 is a cross-sectional view illustrating a first embodiment of the present invention. 図１のＡ部拡大図。The enlarged view of the A section of FIG. トーンホイール本体を取り出して図２の右方から見た図。The figure which took out the tone wheel main body and was seen from the right of FIG. 本発明の実施例２を示す、図２と同様の図。FIG. 3 is a view similar to FIG. 2, but showing a second embodiment of the present invention. 同実施例３を示す、図２と同様の図。FIG. 3 is a view similar to FIG. 2 and showing the third embodiment. 同実施例４を示す、図２と同様の図。FIG. 3 is a view similar to FIG. 2 and showing the fourth embodiment. 支持環を取り出して図６の右方から見た図。The figure which took out the support ring and looked from the right side of FIG. 本発明の実施例５を示す、図２と同様の図。FIG. 6 is a view similar to FIG. 2 and illustrating a fifth embodiment of the present invention.

符号の説明Explanation of reference numerals

１ ハブ
２ 外輪軌道
３ フランジ
４ スタッド
５ 内輪
６ 内輪軌道
７ 車軸
８ 段部
９ ナット
１０ 蓋体
１１ 玉
１２ 保持器
１３ 密封装置
１４ 空間
１５ トーンホイール
１６ センサ
１７ 支持環
１８ 外径側芯金
１９ 内径側芯金
２１ａ、２１ｂ、２１ｃ シールリップ
２２ 第一の外径側嵌合筒部
２３ 第一の外径側円輪部
２４ 第二の外径側嵌合筒部
２５ 第二の外径側円輪部
２６ａ、２６ｂ 面取り部
２７ 内径側嵌合筒部
２８ 内径側円輪部
２９ 弾性材
３０ トーンホイール本体
３１ 透孔
３２ リップ
DESCRIPTION OF SYMBOLS 1 Hub 2 Outer ring track 3 Flange 4 Stud 5 Inner ring 6 Inner ring track 7 Axle 8 Stepped portion 9 Nut 10 Cover body 11 Ball 12 Cage 13 Sealing device 14 Space 15 Tone wheel 16 Sensor 17 Support ring 18 Outer diameter core metal 19 Inner diameter Side core metal 21a, 21b, 21c Seal lip 22 First outer diameter side fitting cylindrical part 23 First outer diameter side annular part 24 Second outer diameter side fitting cylindrical part 25 Second outer diameter side circle Ring 26a, 26b Chamfer 27 Internal diameter fitting cylinder 28 Internal diameter circular ring 29 Elastic material 30 Tone wheel main body 31 Through hole 32 Lip

Claims (2)

内周面に外輪軌道を有し、使用時に回転する外輪相当部材と、外周面に内輪軌道を有し、使用時に回転しない内輪相当部材と、上記外輪軌道と内輪軌道との間に転動自在に設けられた複数の転動体と、上記外輪相当部材の端部内周面と上記内輪相当部材の端部外周面との間に設けられて、これら両周面同士の間に存在する空間の端部開口を塞ぐ密封装置と、上記外輪相当部材の端部内周面に支持されてこの外輪相当部材と共に回転する、磁気的性質を円周方向に亙り交互に且つ等間隔で変化させた円環状のトーンホイールとから成る、密封装置及びトーンホイールを備えた転がり軸受ユニットに於いて、第一の外径側嵌合筒部及びこの第一の外径側嵌合筒部の端縁から直径方向内方に折れ曲がった第一の外径側円輪部を有し、上記第一の外径側嵌合筒部を上記外輪相当部材の端部内周面に内嵌する事によりこの外輪相当部材に固定された支持環と、第二の外径側嵌合筒部及びこの第二の外径側嵌合筒部の端縁から直径方向内方に折れ曲がった第二の外径側円輪部を有し、上記第二の外径側嵌合筒部を上記第一の外径側嵌合筒部に内嵌する事により上記外輪相当部材に固定された外径側芯金と、内径側嵌合筒部及びこの内径側嵌合筒部の端縁から直径方向外方に折れ曲がった内径側円輪部を有し、上記内径側嵌合筒部を上記内輪相当部材の端部外周面に外嵌する事によりこの内輪相当部材に固定された内径側芯金と、この内径側芯金と上記外径側芯金との少なくとも一方にその基端部を添着固定され、その先端部を当該芯金が対向する部材の表面に摺接させたシールリップと、上記第一の外径側円輪部を含んで構成されるトーンホイールとを備えた事を特徴とする密封装置及びトーンホイールを備えた転がり軸受ユニット。   An outer ring-equivalent member that has an outer ring raceway on the inner peripheral surface and rotates when used, an inner ring-equivalent member that has an inner ring raceway on the outer peripheral surface that does not rotate when used, and freely rolls between the outer ring raceway and the inner ring raceway And a plurality of rolling elements provided between the inner peripheral surface of the outer ring-equivalent member and the outer peripheral surface of the end portion of the inner-ring-equivalent member, and an end of a space existing between the two peripheral surfaces. A sealing device that closes the opening of the outer ring, and an annular ring that is supported on the inner peripheral surface at the end of the outer ring-equivalent member and rotates together with the outer ring-equivalent member, in which magnetic properties are alternately and circumferentially changed at equal intervals in the circumferential direction. In a rolling bearing unit including a sealing device and a tone wheel, the first outer diameter-side fitting cylinder portion and a diametrically inner end of the first outer diameter-side fitting cylinder portion. Having a first outer diameter side annular portion bent toward the first outer diameter A support ring fixed to the outer ring-equivalent member by fitting the fitting cylinder portion to an inner peripheral surface of an end portion of the outer ring-equivalent member; a second outer-diameter-side fitting cylinder portion and the second outer-diameter side; A second outer diameter side annular portion bent inward in the diameter direction from an end edge of the fitting cylindrical portion, and the second outer diameter side fitting cylindrical portion is connected to the first outer diameter side fitting cylinder. An outer diameter core fixed to the outer ring-equivalent member by being fitted in the inner diameter portion; an inner diameter side fitting cylinder portion; and an inner diameter side circle bent radially outward from an end edge of the inner diameter side fitting cylinder portion. An inner diameter side core fixed to the inner ring equivalent member by externally fitting the inner diameter side fitting cylindrical portion to an end outer peripheral surface of the inner ring equivalent member; A seal lip having a base end portion attached and fixed to at least one of the outer diameter side metal cores and a front end portion slidably contacting the surface of a member facing the metal core; Rolling bearing unit with a sealing device and the tone wheel, characterized in that and a tone wheel configured to include a radially outer annular portion of the. シールリップを外径側芯金に添着すると共に、このシールリップを構成する弾性材の一部を支持環の一部に、全周に亙って弾性的に当接させた、請求項１に記載した密封装置及びトーンホイールを備えた転がり軸受ユニット。
The seal lip is attached to the outer diameter side metal core, and a part of the elastic material constituting the seal lip is elastically brought into contact with a part of the support ring over the entire circumference. A rolling bearing unit comprising the described sealing device and a tone wheel.
JP2004000340A 2004-01-05 2004-01-05 Rolling bearing unit with sealing device Pending JP2004169925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004000340A JP2004169925A (en) 2004-01-05 2004-01-05 Rolling bearing unit with sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004000340A JP2004169925A (en) 2004-01-05 2004-01-05 Rolling bearing unit with sealing device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP8068281A Division JPH09257044A (en) 1996-03-25 1996-03-25 Sealing device and rolling bearing unit having tone wheel

Publications (1)

Publication Number Publication Date
JP2004169925A true JP2004169925A (en) 2004-06-17

Family

ID=32709386

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013132782A (en) * 2011-12-26 2013-07-08 Nok Corp Seal joining method and sealing member
ITTO20130715A1 (en) * 2013-09-04 2015-03-05 Skf Ab HOLDING AND SIGNALING DEVICE, IN PARTICULAR FOR A ROLLING BEARING
JP2016133196A (en) * 2015-01-21 2016-07-25 Nok株式会社 Sealing device
CN108058540A (en) * 2016-11-09 2018-05-22 阿文美驰技术有限责任公司 Wheel connector assembly with the sealing element being connected with adjusting ring interface
US10293636B2 (en) 2017-05-03 2019-05-21 Arvinmeritor Technology, Llc Wheel end assembly having a deflector
CN111237347A (en) * 2018-11-28 2020-06-05 斯凯孚公司 Assembly
US10704602B2 (en) 2018-05-21 2020-07-07 Arvinmeritor Technology, Llc Brake rotor and tone ring assembly
US10899174B2 (en) 2018-03-15 2021-01-26 Arvinmeritor Technology, Llc Wheel end assembly having a compression ring and method of assembly

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013132782A (en) * 2011-12-26 2013-07-08 Nok Corp Seal joining method and sealing member
ITTO20130715A1 (en) * 2013-09-04 2015-03-05 Skf Ab HOLDING AND SIGNALING DEVICE, IN PARTICULAR FOR A ROLLING BEARING
EP2846057A1 (en) * 2013-09-04 2015-03-11 Aktiebolaget SKF Sealing and signaling device, in particular for a rolling bearing
CN104421343A (en) * 2013-09-04 2015-03-18 Skf公司 Sealing and signaling device, in particular for a rolling bearing
US9261144B2 (en) 2013-09-04 2016-02-16 Aktiebolaget Skf Sealing and signaling device, in particular for a rolling bearing
JP2016133196A (en) * 2015-01-21 2016-07-25 Nok株式会社 Sealing device
CN108058540A (en) * 2016-11-09 2018-05-22 阿文美驰技术有限责任公司 Wheel connector assembly with the sealing element being connected with adjusting ring interface
US10052913B2 (en) * 2016-11-09 2018-08-21 Arvinmeritor Technology, Llc Wheel end assembly having a seal interface with a tone ring
US10293636B2 (en) 2017-05-03 2019-05-21 Arvinmeritor Technology, Llc Wheel end assembly having a deflector
US10899174B2 (en) 2018-03-15 2021-01-26 Arvinmeritor Technology, Llc Wheel end assembly having a compression ring and method of assembly
US10704602B2 (en) 2018-05-21 2020-07-07 Arvinmeritor Technology, Llc Brake rotor and tone ring assembly
CN111237347A (en) * 2018-11-28 2020-06-05 斯凯孚公司 Assembly
CN111237347B (en) * 2018-11-28 2024-03-19 斯凯孚公司 Assembly

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