JP2004037293A - Pulser ring and ball bearing apparatus for rotation detector - Google Patents

Pulser ring and ball bearing apparatus for rotation detector Download PDF

Info

Publication number
JP2004037293A
JP2004037293A JP2002195737A JP2002195737A JP2004037293A JP 2004037293 A JP2004037293 A JP 2004037293A JP 2002195737 A JP2002195737 A JP 2002195737A JP 2002195737 A JP2002195737 A JP 2002195737A JP 2004037293 A JP2004037293 A JP 2004037293A
Authority
JP
Japan
Prior art keywords
flange
ring
rotating member
fitting portion
support ring
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
JP2002195737A
Other languages
Japanese (ja)
Other versions
JP4062992B2 (en
Inventor
Yoshibumi Shige
重 義文
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 JP2002195737A priority Critical patent/JP4062992B2/en
Publication of JP2004037293A publication Critical patent/JP2004037293A/en
Application granted granted Critical
Publication of JP4062992B2 publication Critical patent/JP4062992B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14Bearings 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
    • F16C19/18Bearings 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
    • F16C19/181Bearings 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
    • F16C19/183Bearings 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
    • F16C19/184Bearings 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
    • F16C19/185Bearings 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14Bearings 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
    • F16C19/18Bearings 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
    • F16C19/181Bearings 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
    • F16C19/183Bearings 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
    • F16C19/184Bearings 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
    • F16C19/186Bearings 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00Articles relating to transporting
    • F16C2326/01Parts of vehicles in general
    • F16C2326/02Wheel hubs or castors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/723Shaft end sealing means, e.g. cup-shaped caps or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007Encoders, e.g. parts with a plurality of alternating magnetic poles

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shape of a support ring of a pulser ring used for a rotation detector which easily stabilizes the attitude of a flange attached to a ring magnet. <P>SOLUTION: A fitting part 21 of the support ring 17 of the pulser ring 15 interconnects a large cylindrical part 21A extending in the radially outward direction and integrally connected to an outer flange 22A with a small cylindrical part 21B for inwardly extending in the radial direction and integrally connected to an inner flange 22B at an inner end. The ring magnet 16 is attached to an outer face of the flange 22 comprising the outer and inner flanges 22A, 22B. The position of the flange 22 in the radial direction and a detection radius Y of the ring magnet 16 attached to the flange 22 can be properly changed. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、回転検出器用のパルサーリングおよび転がり軸受装置に関する。
【0002】
【従来の技術】
例えば自動車などでは、車輪支持用の転がり軸受装置に対して、アンチロックブレーキシステム(ABS)等の制御に用いられる回転検出器を装備させることがある。
【0003】
回転検出器は、パルサーリングと、センサとを含む構成である。このパルサーリングが、転がり軸受装置に備える回転部材に対して取り付けられ、前記パルサーリングに対向する状態でセンサが静止部材側に取り付けられる。回転部材と同期回転するパルサーリングの回転速度はセンサで検出され、それによって、車輪の回転速度や回転方向などの回転状態が検出される。
【0004】
一般的に、上記パルサーリングの種類としては、櫛歯形状の金属環および円周数ヶ所に透孔を設けた金属環とする磁性片タイプや、金属製の支持環に対して周方向交互に磁極を配置してなる環状磁石を取り付けた磁石タイプがある。
【0005】
従来例として、磁石タイプのパルサーリングの一例を図8および図9に示して説明する。図中、81は車輪支持用の転がり軸受装置の全体、82はハブ軸、83は静止部材としての外輪、84は回転部材としての内輪、85は転動体、86は保護キャップ、87は回転検出器である。
【0006】
回転検出器87は、パルサーリング88と、磁束を検出するセンサ89とを備えている。パルサーリング88は、内輪84に対して取り付けられる支持環90と、支持環90に対して取り付けられる環状磁石91とを備えている。
【0007】
支持環90は、内輪84の外周面肩部に対して嵌合装着される円筒形の嵌合部92と、この嵌合部92の一端から径方向内向きに延ばされるとともに外面に環状磁石91が取り付けられるフランジ93とを有し、上半分の断面が横向きのL字形状になっている。環状磁石91は、磁性粉を混合したゴムを環状板形状とし、その周方向交互にN極とS極を着磁した着磁ゴムリングとされている。
【0008】
【発明が解決しようとする課題】
通常、センサ89のセンタXとパルサーリング88の環状磁石91の検出径Yとを一致させるように位置決めする必要がある。
【0009】
すなわち、上記従来例では、センサ89の配置位置に応じて、パルサーリング88の環状磁石91の配置位置を特定する必要がある。
【0010】
仮に、センサ89のセンタXを内輪84の外周面肩部よりも外径側に配置しなければならない状況では、パルサーリング88の支持環90が上半分の断面を横向きのL字形状にしたものであるために、支持環90のフランジ93に対して取り付けている環状磁石91の検出径Yをセンサ89のセンタXに対して一致させることは無理である。
【0011】
このような状況に対しては、図9に示すように、パルサーリング88の取り付け相手となる内輪84の外周面肩部の外径をR1からR2に大きくしたうえで、パルサーリング88の径を大きくすれば、環状磁石91の検出径Yをセンサ89のセンタXに対して一致させることが可能になる。しかしながら、このような対処では、内輪84やパルサーリング88の形状を変更する必要があって、コスト増大につながるなど、好ましくない。
【0012】
【課題を解決するための手段】
本発明は、回転部材の回転状態を検出する回転検出器に用いられるパルサーリングを提案する。このパルサーリングは、前記回転部材に対して取り付けられる支持環と、この支持環に対して取り付けられる環状磁石とを有する。前記支持環が、前記回転部材の周面肩部に対して嵌合装着される嵌合部と、嵌合部の外端から径方向内向きまたは径方向外向きに延ばされて前記回転部材の端面に沿わされるとともに外面に前記環状磁石が取り付けられるフランジとを有する。前記嵌合部が、前記フランジのうち径方向外側へ延ばされた外側フランジと一体につながる大筒部分と、前記フランジのうち径方向内側へ延ばされた内側フランジと一体につながる小筒部分とをそれらの内端側で連接している。
【0013】
なお、上記回転部材とは、軸体や筒体などである。上記嵌合部の外端とは、回転部材の端縁側に位置する部分のことであり、上記嵌合部の内端側とは、回転部材の端縁から軸方向内方に離れて位置する部分のことである。上記外側フランジと内側フランジとは、回転部材の端面に対して接触する状態であっても、非接触の状態であってもかまわない。
【0014】
この場合、支持環における外側フランジと内側フランジとが、回転部材に嵌合固定するための嵌合部よりもそれぞれ径方向外側と径方向内側とに延ばされているとともに、そのフランジが回転部材の端面に沿わせるようになっているから、そのフランジは、環状磁石を取り付ける幅を径方向である程度の幅を確保することができる。また、フランジが回転部材の周面肩部に対して径方向外側にも内側にも備えられるものとなっているから、フランジに取り付けられる環状磁石の径方向での位置をセンサの配置位置に応じて適宜に変更できるようになるなど、汎用性の高いものとなる。したがって、図8、図9に示す従来例のようにパルサーリングの取り付け相手となる内輪の外径寸法や外輪の内径寸法を変更する必要がなくなる。
【0015】
また、上記支持環は、一枚の金属板をプレス加工することにより屈曲形成されるものとすることができる。この場合、支持環の嵌合部における大筒部分と小筒部分とがその内端側で180度折り曲げられるように屈曲形成されるのであり、さらに大筒部分、小筒部分にそれぞれ外側フランジ、内側フランジが大体90度折り曲げるように屈曲形成される。
【0016】
また、本発明に係るパルサーリングは、前記大筒部分と小筒部分とが密着状態で重合されていることが好ましい。
【0017】
また、本発明に係る転がり軸受装置は、静止部材と、回転部材と、前記静止部材と前記回転部材との対向周面間に転動自在に介装される転動体と、前記回転部材の周面肩部に取り付けられて前記回転部材の回転状態を検出するパルサーリングとを備え、前記パルサーリングが、前記回転部材に対して取り付けられる支持環と、この支持環に対して取り付けられる環状磁石とを有し、前記支持環が、前記回転部材の周面肩部に対して嵌合装着される嵌合部と、嵌合部の外端から前記回転部材の端面に沿って径方向内向きに延ばされる内側フランジと、嵌合部の外端から前記回転部材の端面に沿って径方向外向きに延ばされる外側フランジとを有し、前記嵌合部が、前記外側フランジと一体につながる大筒部分と、前記内側フランジと一体につながる小筒部分とをそれらの内端側で連接して形成されており、前記環状磁石が、前記外側フランジと前記内側フランジとの両方の外面にまたがった状態で取り付けられている。
【0018】
この場合、パルサーリングの支持環における外側フランジと内側フランジとが、回転部材に嵌合固定するための嵌合部よりもそれぞれ径方向外側と径方向内側とに延ばされているとともに、そのフランジが回転部材の端面に沿わせるようになっているから、そのフランジは、環状磁石を取り付ける幅を径方向である程度の幅を確保することができる。また、フランジが回転部材の周面肩部に対して径方向外側にも内側にも備えられるものとなっているから、フランジに取り付けられる環状磁石の径方向での位置をセンサの配置位置に応じて適宜に変更できるようになるなど、汎用性の高いものとなる。したがって、図8、図9に示す従来例のようにパルサーリングの取り付け相手となる内輪の外径寸法や外輪の内径寸法を変更する必要がなくなる。
【0019】
【発明の実施形態】
図1から図4に本発明の実施形態1を示している。ここでは、自動車の従動輪側に用いられる転がり軸受装置を例に挙げる。図例の転がり軸受装置1は、ハブ軸2と、複列転がり軸受3と、回転検出器4とを備えている。
【0020】
上記ハブ軸2の一方軸端寄りには、径方向外向きに延びるフランジ2aが設けられており、このハブ軸2においてフランジ2aよりも車両インナー側の領域に複列転がり軸受3が外装されている。
【0021】
複列転がり軸受3は、複列外向きアンギュラ玉軸受とされ、二列の軌道溝を有する静止部材としての単一の外輪31と、ハブ軸2の小径外周面2bに外嵌される一列の軌道を有する回転部材としての単一の内輪32と、二列で配設される転動体としての複数の玉33と、二つの冠形保持器34,35とを備えており、上記ハブ軸2の大径外周面2cを一方内輪とする構成になっている。外輪31の外周には、径方向外向きに延びるフランジ36が設けられている。外輪31の車両インナー側には、軸受内部を密封するための保護キャップ37が装着されている。
【0022】
そして、上記複列転がり軸受3の外輪31のフランジ36が、車体の一部となるキャリア(またはナックル)5に対してボルト6で非回転に取り付けられ、上記ハブ軸2のフランジ2aの外側面(図1における左側で、車両アウター側の面)と、フランジ2aの円周数ヶ所に貫通装着されるボルト7に対して螺合されるナット8とで、ディスクブレーキ装置のディスクロータ9および車輪10が挟持されて固定されている。
【0023】
回転検出器4は、上記ハブ軸2の回転速度や回転方向などの回転状態を検出するものであり、パルサーリング15と、センサ16とを備えている。
【0024】
パルサーリング15は、内輪32の外周面肩部に取り付けられる支持環17と、この支持環17に対して取り付けられる環状磁石18とを有している。環状磁石18は、図2に示すように、例えばフェライトの磁性粉末を混入したゴム材料を環状板形状にし、その円周等間隔の領域をN極とS極に交互に着磁した構成の着磁ゴムリングとされている。
【0025】
センサ16は、図3で一点鎖線で示すように、そのセンタXと環状磁石18の検出径Yとを一致させた状態でかつパルサーリング15の環状磁石18の外面に対して所定のエアーギャップを介して軸方向で対向する状態で保護キャップ37に取り付けられており、環状磁石18の回転状態に対応した電気信号を出力する。この保護キャップ37は外輪31に嵌合固定したものである。このセンサ16は、ホール素子や磁気抵抗素子等の磁束の流れ方向に応じて出力を変化させる検知部となる磁気検出素子と、当該磁気検出素子の出力波形を整える波形整形回路を組み込んだIC等とで構成されたもので、いわゆるアクティブセンサと呼ばれるものである。
【0026】
上記回転検出器4は、ハブ軸2と一体の内輪32の回転に伴ってパルサーリング15が回転すると、センサ16にてパルサーリング15の磁束の変化を検知し、ハブ軸2に取り付けられる車輪10の回転速度を検出する。
【0027】
ここで、上記パルサーリング15の支持環17の形状を工夫しているので、以下で図2ないし図4を参照にして詳細に説明する。
【0028】
上記支持環17は、内輪32の外周面肩部に対して嵌合装着される嵌合部21と、嵌合部21の外端から径方向外向き及び径方向内向きに延ばされて内輪32の端面に対して沿った面を成しているフランジ22とを有している。このフランジ22の外面には、上記環状磁石18が取り付けられる。
【0029】
この支持環17は、非磁性の金属材(例えばJIS規格SUS304など)または磁性の金属材(JIS規格SPCCなど)からなり、例えば一枚の金属板をプレス加工することにより屈曲形成される。すなわち、支持環17は、外周形状の円と同心の円形孔を空けた円板部材を、所定径位置で180度折り曲げて互いに重ね合わされる大筒部分と小筒部分とが屈曲形成される工程と、その大筒部分と小筒部分とにおける折り曲げによる端部箇所から同じ所定長さをとった位置でそれぞれ径方向外側と内側とに90度折り曲げて、外側フランジ22Aと内側フランジ22Bとが屈曲形成される工程とによって形成される。
【0030】
プレス加工が完了した支持環17では、外側フランジ22Aと内側フランジ22Bとが屈曲形成された大筒部分21Aと小筒部分21Bとによって嵌合部21が構成されることになる。したがって、嵌合部21における大筒部分21Aと小筒部分21Bとはその一端部において連接されることになる。この実施形態1の場合、大筒部分21Aと小筒部分21Bとは互いの対向面同士が接触した状態となっている。
【0031】
外側フランジ22Aおよび内側フランジ22Bの外側面は、同一平面に沿う面、この場合、支持環17が内輪32に嵌合された状態でこの内輪32のインナ側端面に沿う面となるように形成され、環状磁石18が取り付けられる面として面一になっている。図では、外側フランジ22Aおよび内側フランジ22Bで構成されるフランジ22の外側面のほぼ全体に環状磁石22を取り付けているが、環状磁石22の径方向長さは、任意である。したがって、このパルサーリング15では、予め、フランジ22の外側面における環状磁石22の取付範囲を所定範囲で確保できるよう、フランジ22の径方向幅寸法を確保しておけば、センサ16のセンタX位置の所定範囲での変更に対応させて環状磁石22の検出径Yを合わせてそのフランジ22に環状磁石22を取り付けることができる。
【0032】
なお、上記支持環17の製造手順としては、プレス加工により外形を整えてから、脱脂処理、化成処理(例えばりん酸塩被膜処理)、乾燥処理をこの記載順に行うことにより製作されるが、前記乾燥処理が済んだ支持環17のフランジ22に対して上記着磁ゴムリングからなる環状磁石18を加硫接着することにより取り付けるようにしている。
【0033】
このようなパルサーリング15では、フランジ22の径寸法を予め環状磁石18の取付位置を調整できるように設定しておくことによって、フランジ22に取り付けられる環状磁石18の径方向での位置をセンサ16の配置位置に応じて適宜に変更できるようになるなど、汎用性の高いものにできる。したがって、図8に示す従来例のようにパルサーリング15の取り付け相手となる内輪32の外径寸法を変更する必要がなくなる。
【0034】
また、上記支持環17をプレス加工で製作する場合、嵌合部21の大筒部分21Aおよび小筒部分21Bに対して外側フランジ22Aおよび内側フランジ22Bをほぼ90度と図10に示す従来例のものよりも小さくしているから、フランジ22の屈曲形成が容易で、しかも屈曲後に外側フランジ22Aおよび内側フランジ22Bがスプリングバックしにくくなり、姿勢が傾いたりせずに安定する。したがって、センサ16のセンタXと環状磁石18の検出径Yとの同軸度やセンサ16と環状磁石18との間のエアーギャップを精度よく管理できるようになるなど、信頼性ならびに検出精度の向上に貢献できる。
【0035】
なお、本発明は、上記実施形態1のみに限定されるものではなく、種々の応用や変形が考えられる。
【0036】
(1)上記実施形態1で示した複列転がり軸受3については複列外向きアンギュラ玉軸受以外に、円すいころ等の各種斜接形式の複列転がり軸受であっても構わない。
【0037】
(2)上記実施形態1では、内輪回転形式の転がり軸受装置1を例に挙げたが、外輪回転形式の転がり軸受装置1Aとすることができる。この外輪回転形式の転がり軸受装置1Aの場合、図5に示すように、回転部材となる外輪22に対して外輪22の軸方向端部(図5における右側で、車両インナー側)の内周面にパルサーリング15を取り付けるようにし、静止部材となる軸体11に対してセンサ16を取り付けるようにする。本実施形態では、上記実施形態1とは逆に支持環17の大筒部分の外周面を外輪22の内周面に嵌合固定している。なお、図5に示すパルサーリング15は、図1に示したものと基本的に同じ設計思想に基づいた形状にしている。このようなパルサーリング15では、図6に示すように、予め、フランジ22の外側面における環状磁石22の取付範囲を所定範囲で確保できるよう、フランジ22の径方向幅寸法を確保しておけば、センサ16のセンタX位置の所定範囲での変更に対応させて環状磁石22の検出径Yを合わせてそのフランジ22に環状磁石22を取り付けることができる。
【0038】
(3)上記各実施形態では、パルサーリングの嵌合部の大筒部分と小筒部分とが互いの対向面が接触する状態で重ね合わせた構成のものを示したが、図7に示すように、パルサーリング15の嵌合部21における大筒部分21Aと小筒部分21Bとの間に、金属材などからなるリング部材30を挟み込んだ構成にしてもよい。このリング部材30は、その外側端面が外側フランジ22Aおよび内側フランジ22Bの外側面、つまり環状磁石18を取り付ける面と面一となっている。これにより、大筒部分21A、小筒部分21Bに対する外側フランジ22A、内側フランジ22Bの屈曲形成箇所の湾曲部分での隙間などを小さくでき、支持環17に対する環状磁石18の接着性を高め、環状磁石18の取り付け姿勢の安定化が一層図れるので、環状磁石18から磁束を一層精度良く発生させることができ、検出精度を高めることに貢献できる。
【0039】
(4)上記各実施形態のように支持環の嵌合部を折り曲げ形成したことで大筒部分と小筒部分とが一体に連接されるようにするのみならず、パルサーリングの嵌合部の大筒部分と小筒部分とがスポット溶接などにより接合されるものでもよい。
【0040】
【発明の効果】
本発明では、センサの径方向での配置位置が様々であることを考慮してパルサーリングの環状磁石の検出径を簡易に変更して製作できるなど、汎用性の高いものにすることができて、しかも、支持環のフランジの姿勢を傾かないように安定にして製作できる。したがって、センサと環状磁石との同軸度やそれらの間のエアーギャップを精度よく管理できるようになるなど、信頼性ならびに検出精度の向上に貢献できる。
【図面の簡単な説明】
【図1】本発明の実施形態1に係る転がり軸受装置の断面図
【図2】図1のパルサーリングの一部破断斜視図
【図3】図1のパルサーリングの検出径を変更する例を拡大して示す図
【図4】図1のパルサーリングを拡大して示す片断面図
【図5】本発明の実施形態2に係る転がり軸受装置の断面図
【図6】図5のパルサーリングの検出径を変更する例を拡大して示す図
【図7】本発明の転がり軸受装置に設けたパルサーリングの変形例を拡大して示す断面図
【図8】従来例1に係る転がり軸受装置の断面図
【図9】図8のパルサーリングの検出径を変更する例を拡大して示す図
【符号の説明】
1  転がり軸受装置        2  ハブ軸
3  複列転がり軸受       32  内輪(回転部材)
4  回転検出器         15  パルサーリング
16  センサ           17  支持環
18  環状磁石          21  支持環の嵌合部
22  支持環のフランジ      23  嵌合部の大筒部
24  嵌合部の小筒部       33  玉(転動体)
X   センサのセンタ       Y   環状磁石の検出径
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pulsar ring and rolling bearing device for a rotation detector.
[0002]
[Prior art]
For example, in an automobile and the like, a rotation detector used for controlling an antilock brake system (ABS) or the like may be provided in a rolling bearing device for supporting wheels.
[0003]
The rotation detector has a configuration including a pulsar ring and a sensor. The pulsar ring is attached to a rotating member provided in the rolling bearing device, and a sensor is attached to the stationary member in a state facing the pulsar ring. The rotation speed of the pulsar ring, which rotates synchronously with the rotating member, is detected by a sensor, whereby the rotation state such as the rotation speed and the rotation direction of the wheel is detected.
[0004]
Generally, as the kind of the pulsar ring, a magnetic piece type having a comb-shaped metal ring and a metal ring provided with through holes at several places around the circumference, and a metal support ring are alternately arranged in the circumferential direction. There is a magnet type provided with an annular magnet in which magnetic poles are arranged.
[0005]
As a conventional example, an example of a magnet type pulsar ring will be described with reference to FIGS. 8 and 9. FIG. In the figure, 81 is the whole rolling bearing device for supporting wheels, 82 is a hub axle, 83 is an outer ring as a stationary member, 84 is an inner ring as a rotating member, 85 is a rolling element, 86 is a protective cap, and 87 is rotation detection. It is a vessel.
[0006]
The rotation detector 87 includes a pulsar ring 88 and a sensor 89 for detecting a magnetic flux. The pulsar ring 88 includes a support ring 90 attached to the inner ring 84 and an annular magnet 91 attached to the support ring 90.
[0007]
The support ring 90 has a cylindrical fitting portion 92 fitted and mounted on the shoulder of the outer peripheral surface of the inner ring 84, a radially inward extending from one end of the fitting portion 92, and an annular magnet 91 on the outer surface. And a flange 93 to which is attached, and an upper half section has a laterally L-shaped shape. The annular magnet 91 is a magnetized rubber ring in which rubber mixed with magnetic powder is formed in an annular plate shape, and N and S poles are alternately magnetized in the circumferential direction.
[0008]
[Problems to be solved by the invention]
Usually, it is necessary to position the sensor 89 such that the center X of the sensor 89 and the detection diameter Y of the annular magnet 91 of the pulsar ring 88 match.
[0009]
That is, in the above conventional example, it is necessary to specify the position of the annular magnet 91 of the pulsar ring 88 according to the position of the sensor 89.
[0010]
In a situation in which the center X of the sensor 89 must be arranged on the outer diameter side with respect to the outer peripheral shoulder of the inner ring 84, the support ring 90 of the pulsar ring 88 has an upper half with a horizontal L-shaped cross section. Therefore, it is impossible to make the detection diameter Y of the annular magnet 91 attached to the flange 93 of the support ring 90 coincide with the center X of the sensor 89.
[0011]
In such a situation, as shown in FIG. 9, the outer diameter of the shoulder of the outer peripheral surface of the inner ring 84 to which the pulsar ring 88 is attached is increased from R1 to R2, and then the diameter of the pulsar ring 88 is increased. If the size is increased, the detection diameter Y of the annular magnet 91 can be made to coincide with the center X of the sensor 89. However, such measures are not preferable because the shapes of the inner ring 84 and the pulsar ring 88 need to be changed, which leads to an increase in cost.
[0012]
[Means for Solving the Problems]
The present invention proposes a pulsar ring used for a rotation detector that detects a rotation state of a rotating member. The pulsar ring has a support ring attached to the rotating member, and an annular magnet attached to the support ring. A fitting portion fitted and mounted to a peripheral shoulder of the rotating member, and a support member extending radially inward or radially outward from an outer end of the fitting portion; And a flange on the outer surface to which the annular magnet is attached. The fitting portion is a large cylindrical portion integrally connected to an outer flange extending radially outward of the flange, and a small cylindrical portion integrally connected to an inner flange extended radially inward of the flange. Are connected at their inner ends.
[0013]
The rotating member is a shaft or a cylinder. The outer end of the fitting portion is a portion located on the edge side of the rotating member, and the inner end side of the fitting portion is located axially inward from the edge of the rotating member. It is a part. The outer flange and the inner flange may be in contact with the end face of the rotating member or in a non-contact state.
[0014]
In this case, the outer flange and the inner flange of the support ring extend radially outward and radially inward, respectively, from a fitting portion for fitting and fixing to the rotating member, and the flange is formed by the rotating member. The flange can secure a certain width in the radial direction for mounting the annular magnet. In addition, since the flange is provided on both the radially outer side and the inner side with respect to the circumferential shoulder of the rotating member, the radial position of the annular magnet attached to the flange depends on the arrangement position of the sensor. It becomes highly versatile, for example, it can be changed as needed. Therefore, it is not necessary to change the outer diameter of the inner ring to which the pulsar ring is attached and the inner diameter of the outer ring as in the conventional example shown in FIGS.
[0015]
Further, the support ring may be bent by pressing a single metal plate. In this case, the large cylinder portion and the small cylinder portion in the fitting portion of the support ring are formed so as to be bent by 180 degrees on the inner end side thereof. Are bent so as to be bent approximately 90 degrees.
[0016]
Further, in the pulsar ring according to the present invention, it is preferable that the large tube portion and the small tube portion are polymerized in close contact with each other.
[0017]
Further, the rolling bearing device according to the present invention includes a stationary member, a rotating member, a rolling element rotatably interposed between opposing peripheral surfaces of the stationary member and the rotating member, and a periphery of the rotating member. A pulsar ring attached to a surface shoulder to detect a rotation state of the rotating member, wherein the pulsar ring is a support ring attached to the rotating member, and an annular magnet attached to the support ring. Having a fitting portion fitted and mounted to a peripheral shoulder of the rotating member, and radially inward from an outer end of the fitting portion along an end surface of the rotating member. A large cylindrical portion having an extended inner flange, and an outer flange extending radially outward from the outer end of the fitting portion along the end surface of the rotating member, wherein the fitting portion is integrally connected to the outer flange. And the inner flange That the small tube portion is formed by concatenating at their inner end, said annular magnet is mounted in a state of straddling the outer surface of both the inner flange and the outer flange.
[0018]
In this case, the outer flange and the inner flange of the support ring of the pulsar ring extend radially outward and radially inward from the fitting portion for fitting and fixing to the rotating member, respectively, Is arranged along the end face of the rotating member, so that the flange can secure a certain width in the radial direction for mounting the annular magnet. In addition, since the flange is provided on both the radially outer side and the inner side with respect to the circumferential shoulder of the rotating member, the radial position of the annular magnet attached to the flange depends on the arrangement position of the sensor. It becomes highly versatile, for example, it can be changed as needed. Therefore, it is not necessary to change the outer diameter of the inner ring to which the pulsar ring is attached and the inner diameter of the outer ring as in the conventional example shown in FIGS.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 show a first embodiment of the present invention. Here, a rolling bearing device used on a driven wheel side of an automobile will be described as an example. The illustrated rolling bearing device 1 includes a hub shaft 2, a double-row rolling bearing 3, and a rotation detector 4.
[0020]
A flange 2a extending radially outward is provided near one shaft end of the hub shaft 2. A double-row rolling bearing 3 is provided outside the hub shaft 2 in a region closer to the vehicle inner side than the flange 2a. I have.
[0021]
The double-row rolling bearing 3 is a double-row outward-facing angular contact ball bearing, and has a single outer ring 31 as a stationary member having two rows of raceway grooves, and a single-row outer bearing 2b fitted on the small-diameter outer peripheral surface 2b of the hub axle 2. The hub shaft 2 includes a single inner ring 32 as a rotating member having a raceway, a plurality of balls 33 as rolling elements arranged in two rows, and two crown-shaped retainers 34 and 35. The large diameter outer peripheral surface 2c is configured as one inner ring. A flange 36 extending radially outward is provided on the outer periphery of the outer ring 31. A protective cap 37 for sealing the inside of the bearing is mounted on the vehicle inner side of the outer race 31.
[0022]
The flange 36 of the outer race 31 of the double row rolling bearing 3 is non-rotatably attached to a carrier (or knuckle) 5 which is a part of the vehicle body with a bolt 6, and the outer surface of the flange 2 a of the hub axle 2. A disk rotor 9 and a wheel of a disk brake device are constituted by a nut 8 screwed to a bolt 7 which is mounted at several places on the circumference of the flange 2a (left side in FIG. 1, on the vehicle outer side). 10 is clamped and fixed.
[0023]
The rotation detector 4 detects a rotation state such as a rotation speed and a rotation direction of the hub shaft 2, and includes a pulsar ring 15 and a sensor 16.
[0024]
The pulsar ring 15 has a support ring 17 attached to a shoulder of the outer peripheral surface of the inner ring 32, and an annular magnet 18 attached to the support ring 17. As shown in FIG. 2, the annular magnet 18 has a configuration in which a rubber material mixed with, for example, ferrite magnetic powder is formed in an annular plate shape, and its circumferentially equally spaced regions are alternately magnetized to N poles and S poles. It is a magnetic rubber ring.
[0025]
The sensor 16 has a predetermined air gap with respect to the outer surface of the annular magnet 18 of the pulsar ring 15 in a state where the center X and the detection diameter Y of the annular magnet 18 are matched, as indicated by a dashed line in FIG. It is attached to the protective cap 37 in a state where it faces in the axial direction, and outputs an electric signal corresponding to the rotation state of the annular magnet 18. This protective cap 37 is fitted and fixed to the outer race 31. The sensor 16 includes a magnetic detection element such as a Hall element and a magnetic resistance element serving as a detection unit that changes the output in accordance with the flow direction of magnetic flux, and an IC that incorporates a waveform shaping circuit that adjusts the output waveform of the magnetic detection element. This is a so-called active sensor.
[0026]
When the pulsar ring 15 rotates with the rotation of the inner ring 32 integral with the hub shaft 2, the rotation detector 4 detects a change in the magnetic flux of the pulsar ring 15 with a sensor 16, and the wheel 10 attached to the hub shaft 2 Detect the rotation speed of.
[0027]
Here, since the shape of the support ring 17 of the pulsar ring 15 has been devised, it will be described in detail below with reference to FIGS.
[0028]
The support ring 17 extends from the outer end of the fitting portion 21 radially outward and radially inward from the outer end of the fitting portion 21 to the outer ring shoulder of the inner ring 32. 32 and a flange 22 forming a surface along the end face of the flange 32. The annular magnet 18 is attached to the outer surface of the flange 22.
[0029]
The support ring 17 is made of a nonmagnetic metal material (for example, JIS standard SUS304) or a magnetic metal material (for example, JIS standard SPCC), and is formed by bending a single metal plate, for example. That is, the support ring 17 is formed by bending a disc member having a circular hole concentric with an outer peripheral shape circle by 180 degrees at a predetermined diameter position so that a large cylinder portion and a small cylinder portion which are overlapped with each other are bent. The outer and inner flanges 22A and 22B are bent at 90 ° to the outside and inside in the radial direction, respectively, at the positions having the same predetermined length from the end portions of the large and small cylinder portions by bending. Formed by the above steps.
[0030]
In the support ring 17 that has been subjected to the press working, the fitting portion 21 is constituted by the large cylindrical portion 21A and the small cylindrical portion 21B in which the outer flange 22A and the inner flange 22B are formed to be bent. Therefore, the large cylinder portion 21A and the small cylinder portion 21B in the fitting portion 21 are connected at one end. In the case of the first embodiment, the large cylindrical portion 21A and the small cylindrical portion 21B are in a state where their opposing surfaces are in contact with each other.
[0031]
The outer surface of the outer flange 22A and the outer surface of the inner flange 22B are formed so as to be a surface along the same plane, in this case, a surface along the inner side end surface of the inner ring 32 when the support ring 17 is fitted to the inner ring 32. , Are flush with each other on which the annular magnet 18 is mounted. In the figure, the annular magnet 22 is attached to almost the entire outer surface of the flange 22 composed of the outer flange 22A and the inner flange 22B, but the radial length of the annular magnet 22 is arbitrary. Therefore, in the pulsar ring 15, if the radial width of the flange 22 is secured in advance so that the mounting range of the annular magnet 22 on the outer surface of the flange 22 can be secured within a predetermined range, the center X position of the sensor 16 can be secured. The annular magnet 22 can be attached to the flange 22 by adjusting the detection diameter Y of the annular magnet 22 in accordance with the change in the predetermined range.
[0032]
The support ring 17 is manufactured by adjusting the outer shape by press working, and then performing a degreasing process, a chemical conversion process (for example, a phosphate coating process), and a drying process in this order. The ring magnet 18 made of the magnetized rubber ring is attached to the flange 22 of the support ring 17 that has been dried by vulcanization bonding.
[0033]
In such a pulser ring 15, by setting the diameter of the flange 22 in advance so that the mounting position of the annular magnet 18 can be adjusted, the radial position of the annular magnet 18 mounted on the flange 22 can be determined by the sensor 16. It can be made highly versatile, for example, it can be changed as appropriate according to the arrangement position of. Therefore, it is not necessary to change the outer diameter of the inner ring 32 to which the pulsar ring 15 is attached, unlike the conventional example shown in FIG.
[0034]
In the case where the support ring 17 is manufactured by press working, the outer flange 22A and the inner flange 22B are substantially 90 degrees with respect to the large cylindrical portion 21A and the small cylindrical portion 21B of the fitting portion 21 as shown in FIG. Since it is smaller than that, the bending of the flange 22 is easy, and the outer flange 22A and the inner flange 22B are less likely to spring back after bending, so that the posture is stabilized without tilting. Therefore, it is possible to accurately control the coaxiality between the center X of the sensor 16 and the detection diameter Y of the annular magnet 18 and the air gap between the sensor 16 and the annular magnet 18, thereby improving reliability and detection accuracy. Can contribute.
[0035]
Note that the present invention is not limited to only the first embodiment, and various applications and modifications are conceivable.
[0036]
(1) The double-row rolling bearing 3 shown in the first embodiment may be a double-row rolling bearing of various oblique contact types such as a tapered roller, in addition to a double-row outward-facing angular contact ball bearing.
[0037]
(2) In the first embodiment, the inner ring rolling type rolling bearing device 1 has been described as an example. However, the outer ring rolling type rolling bearing device 1A can be used. In the case of the rolling bearing device 1A of the outer ring rotation type, as shown in FIG. 5, the inner peripheral surface of the axial end of the outer ring 22 (the right side in FIG. 5, the vehicle inner side) with respect to the outer ring 22 serving as a rotating member. The pulsar ring 15 is attached to the shaft member 11 and the sensor 16 is attached to the shaft body 11 serving as a stationary member. In the present embodiment, the outer peripheral surface of the large cylindrical portion of the support ring 17 is fitted and fixed to the inner peripheral surface of the outer ring 22, contrary to the first embodiment. The pulsar ring 15 shown in FIG. 5 has a shape basically based on the same design concept as that shown in FIG. In such a pulsar ring 15, as shown in FIG. 6, the radial width of the flange 22 should be secured in advance so that the mounting range of the annular magnet 22 on the outer surface of the flange 22 can be secured within a predetermined range. The annular magnet 22 can be mounted on the flange 22 by adjusting the detection diameter Y of the annular magnet 22 in accordance with a change in the center X position of the sensor 16 within a predetermined range.
[0038]
(3) In each of the above embodiments, the large cylinder portion and the small cylinder portion of the fitting portion of the pulsar ring are configured to overlap each other in a state where their opposing surfaces are in contact with each other, but as shown in FIG. Alternatively, a configuration may be adopted in which a ring member 30 made of a metal material or the like is sandwiched between the large cylindrical portion 21A and the small cylindrical portion 21B in the fitting portion 21 of the pulsar ring 15. The outer end surface of the ring member 30 is flush with the outer surfaces of the outer flange 22A and the inner flange 22B, that is, the surface on which the annular magnet 18 is mounted. Thereby, the clearance at the curved portion of the bent portion of the outer flange 22A and the inner flange 22B with respect to the large cylindrical portion 21A and the small cylindrical portion 21B can be reduced, and the adhesion of the annular magnet 18 to the support ring 17 can be increased. Since the mounting attitude of the ring magnet 18 can be further stabilized, the magnetic flux can be generated from the annular magnet 18 with higher accuracy, which can contribute to an increase in detection accuracy.
[0039]
(4) The fitting portion of the support ring is formed by bending as in each of the above embodiments, so that the large cylinder portion and the small cylinder portion are not only connected integrally, but also the large cylinder of the fitting portion of the pulsar ring. The part and the small cylinder part may be joined by spot welding or the like.
[0040]
【The invention's effect】
In the present invention, the versatility of the pulsar ring can be increased by easily changing the detection diameter of the annular magnet in consideration of the fact that the position of the sensor in the radial direction is various. In addition, the support ring can be manufactured stably so that the posture of the flange is not inclined. Therefore, the coaxiality between the sensor and the annular magnet and the air gap between them can be managed with high accuracy, which contributes to improvement in reliability and detection accuracy.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a rolling bearing device according to Embodiment 1 of the present invention. FIG. 2 is a partially cutaway perspective view of the pulsar ring of FIG. 1. FIG. FIG. 4 is an enlarged cross-sectional view of the pulsar ring of FIG. 1; FIG. 5 is a cross-sectional view of a rolling bearing device according to a second embodiment of the present invention; FIG. FIG. 7 is an enlarged view showing an example of changing the detection diameter. FIG. 7 is an enlarged sectional view showing a modified example of the pulsar ring provided in the rolling bearing device of the present invention. FIG. 9 is an enlarged view showing an example in which the detection diameter of the pulsar ring in FIG. 8 is changed.
DESCRIPTION OF SYMBOLS 1 Rolling bearing device 2 Hub shaft 3 Double row rolling bearing 32 Inner ring (rotating member)
Reference Signs List 4 rotation detector 15 pulser ring 16 sensor 17 support ring 18 annular magnet 21 support ring fitting portion 22 support ring flange 23 fitting portion large cylinder portion 24 fitting portion small cylinder portion 33 ball (rolling element)
X Sensor center Y Ring magnet detection diameter

Claims (4)

回転部材の回転状態を検出する回転検出器に用いられるパルサーリングであって、
前記回転部材に対して取り付けられる支持環と、この支持環に対して取り付けられる環状磁石とを有し、
前記支持環が、前記回転部材の周面肩部に対して嵌合装着される嵌合部と、嵌合部の外端から前記回転部材の端面に沿って径方向内向きに延ばされる内側フランジと、嵌合部の外端から前記回転部材の端面に沿って径方向外向きに延ばされる外側フランジとを有し、
前記嵌合部が、前記外側フランジと一体につながる大筒部分と、前記内側フランジと一体につながる小筒部分とをそれらの内端側で連接して形成されており、前記環状磁石が、前記外側フランジと前記内側フランジとの両方の外面にまたがった状態で取り付けられている、回転検出器用のパルサーリング。
A pulsar ring used for a rotation detector that detects a rotation state of a rotating member,
A support ring attached to the rotating member, and an annular magnet attached to the support ring,
A fitting portion in which the support ring is fitted and mounted on a peripheral shoulder of the rotating member, and an inner flange extending radially inward from an outer end of the fitting portion along an end surface of the rotating member. And, having an outer flange extending radially outward along the end surface of the rotating member from the outer end of the fitting portion,
The fitting portion is formed by connecting a large cylindrical portion integrally connected to the outside flange and a small cylindrical portion integrally connected to the inside flange on their inner end sides, and the annular magnet is formed on the outside flange. A pulsar ring for a rotation detector mounted across the outer surface of both the flange and the inner flange.
請求項1に記載の回転検出器用のパルサーリングにおいて、
前記支持環が、一枚の金属板をプレス加工することにより屈曲形成されるものである、回転検出器用のパルサーリング。
The pulser ring for a rotation detector according to claim 1,
A pulsar ring for a rotation detector, wherein the support ring is formed by bending a single metal plate.
請求項1または2に記載の回転検出器用のパルサーリングにおいて、
前記大筒部分と小筒部分とが密着状態で重合されている、回転検出器用のパルサーリング。
The pulser ring for a rotation detector according to claim 1 or 2,
A pulsar ring for a rotation detector, wherein the large tube portion and the small tube portion are superposed in close contact with each other.
静止部材と、回転部材と、前記静止部材と前記回転部材との対向周面間に転動自在に介装される転動体と、前記回転部材の周面肩部に取り付けられて前記回転部材の回転状態を検出するパルサーリングとを備え、
前記パルサーリングが、前記回転部材に対して取り付けられる支持環と、この支持環に対して取り付けられる環状磁石とを有し、
前記支持環が、前記回転部材の周面肩部に対して嵌合装着される嵌合部と、嵌合部の外端から前記回転部材の端面に沿って径方向内向きに延ばされる内側フランジと、嵌合部の外端から前記回転部材の端面に沿って径方向外向きに延ばされる外側フランジとを有し、
前記嵌合部が、前記外側フランジと一体につながる大筒部分と、前記内側フランジと一体につながる小筒部分とをそれらの内端側で連接して形成されており、前記環状磁石が、前記外側フランジと前記内側フランジとの両方の外面にまたがった状態で取り付けられている、転がり軸受装置。
A stationary member, a rotating member, a rolling element rotatably interposed between opposing peripheral surfaces of the stationary member and the rotating member, and a rolling member mounted on a peripheral shoulder of the rotating member. Pulsar ring that detects the rotation state,
The pulsar ring has a support ring attached to the rotating member, and an annular magnet attached to the support ring,
A fitting portion in which the support ring is fitted and mounted on a peripheral shoulder of the rotating member, and an inner flange extending radially inward from an outer end of the fitting portion along an end surface of the rotating member. And, having an outer flange extending radially outward along the end surface of the rotating member from the outer end of the fitting portion,
The fitting portion is formed by connecting a large cylindrical portion integrally connected to the outside flange and a small cylindrical portion integrally connected to the inside flange on their inner end sides, and the annular magnet is formed on the outside flange. A rolling bearing device mounted across both outer surfaces of the flange and the inner flange.
JP2002195737A 2002-07-04 2002-07-04 Rolling bearing device Expired - Fee Related JP4062992B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002195737A JP4062992B2 (en) 2002-07-04 2002-07-04 Rolling bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002195737A JP4062992B2 (en) 2002-07-04 2002-07-04 Rolling bearing device

Publications (2)

Publication Number Publication Date
JP2004037293A true JP2004037293A (en) 2004-02-05
JP4062992B2 JP4062992B2 (en) 2008-03-19

Family

ID=31704025

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002195737A Expired - Fee Related JP4062992B2 (en) 2002-07-04 2002-07-04 Rolling bearing device

Country Status (1)

Country Link
JP (1) JP4062992B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008196645A (en) * 2007-02-15 2008-08-28 Ntn Corp Wheel bearing device with rotation speed detector
KR100866595B1 (en) * 2006-09-29 2008-11-04 두성에스비텍 주식회사 Pulse ring for Anti-lock Brake System and manufacturing method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1123599A (en) * 1997-06-27 1999-01-29 Nippon Seiko Kk Bearing with revolving speed sensor
JPH11174068A (en) * 1997-12-10 1999-07-02 Nippon Seiko Kk Rolling bearing unit with encoder
JPH11257998A (en) * 1998-01-09 1999-09-24 Nippon Seiko Kk Rolling bearing unit with encoder
JP2003294778A (en) * 2002-03-29 2003-10-15 Uchiyama Mfg Corp Pulser ring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1123599A (en) * 1997-06-27 1999-01-29 Nippon Seiko Kk Bearing with revolving speed sensor
JPH11174068A (en) * 1997-12-10 1999-07-02 Nippon Seiko Kk Rolling bearing unit with encoder
JPH11257998A (en) * 1998-01-09 1999-09-24 Nippon Seiko Kk Rolling bearing unit with encoder
JP2003294778A (en) * 2002-03-29 2003-10-15 Uchiyama Mfg Corp Pulser ring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100866595B1 (en) * 2006-09-29 2008-11-04 두성에스비텍 주식회사 Pulse ring for Anti-lock Brake System and manufacturing method thereof
JP2008196645A (en) * 2007-02-15 2008-08-28 Ntn Corp Wheel bearing device with rotation speed detector

Also Published As

Publication number Publication date
JP4062992B2 (en) 2008-03-19

Similar Documents

Publication Publication Date Title
JP4244631B2 (en) Rolling bearing device
GB2303214A (en) Rolling bearing unit with a rotating speed sensor
JPH0649826U (en) Bearing seal device and bearing device
US8087831B2 (en) Rotary support for wheel with encoder
JP2010151277A (en) Wheel bearing device with rotation speed detector
JP4345988B2 (en) Wheel bearing device
JP4114438B2 (en) Rolling bearing device
US6174088B1 (en) Rolling bearing unit with rotation speed sensor
JP2015172401A (en) Bearing device for wheel
JP2004084848A (en) Roller bearing device
JP2017154641A (en) Bearing device for wheel
JP3497351B2 (en) Rolling bearing unit with encoder
JP4310975B2 (en) Rolling bearing device
JP2010151279A (en) Wheel bearing device with rotation speed detector
JP4062992B2 (en) Rolling bearing device
JP2016078512A (en) Bearing device for wheel
JP4218275B2 (en) Manufacturing method of rolling bearing for axle
JP4140293B2 (en) Pulsar ring and rolling bearing device for rotation detector
JP2008014471A (en) Rolling bearing device with sensor
JP4032851B2 (en) Rolling bearing device
JP2004132497A (en) Rolling bearing device
JP4492436B2 (en) Magnetic encoder and rolling bearing device using the same
JP4274738B2 (en) Bearing device
JPH11142423A (en) Rolling bearing unit with encoder
JP2007038740A (en) Hub unit fitting structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050630

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20070305

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070403

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070604

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070703

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070903

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20071002

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071114

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20071211

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20071224

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110111

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110111

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120111

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130111

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130111

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees