JP2003004058A - Rolling bearing unit for wheel support - Google Patents
Rolling bearing unit for wheel supportInfo
- Publication number
- JP2003004058A JP2003004058A JP2001187531A JP2001187531A JP2003004058A JP 2003004058 A JP2003004058 A JP 2003004058A JP 2001187531 A JP2001187531 A JP 2001187531A JP 2001187531 A JP2001187531 A JP 2001187531A JP 2003004058 A JP2003004058 A JP 2003004058A
- Authority
- JP
- Japan
- Prior art keywords
- hub
- supporting
- peripheral surface
- outer diameter
- inner 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】この発明に係る車輪支持用転
がり軸受ユニットは、自動車の車輪を懸架装置に対して
回転自在に支持する為に利用する。
【０００２】
【従来の技術】自動車の車輪は、車輪支持用転がり軸受
ユニットにより懸架装置に支持する。図４は、従来から
広く実施されている車輪支持用転がり軸受ユニットの第
１例を示している。この車輪支持用転がり軸受ユニット
１は、ハブ２と、内輪３と、外輪４と、複数個の転動体
５、５とを備える。このうちのハブ２の外周面の外端部
（軸方向に関して外とは、自動車への組み付け状態で幅
方向外寄りとなる側を言い、図８を除く各図の左側とな
る。反対に幅方向中央寄りとなる側を内と言い、図８を
除く各図の右側となる。）には、車輪を支持する為の第
一のフランジ６を形成している。又、このハブ２の中間
部外周面には第一の内輪軌道７を、同じく内端部には外
径寸法が小さくなった支持段部８を、それぞれ形成して
いる。
【０００３】上記支持段部８には、外周面に第二の内輪
軌道９を形成した、上記内輪３を外嵌している。又、上
記ハブ２の内端部には雄ねじ部１０を形成し、この雄ね
じ部１０の先端部（図４の右端部）を、上記内輪３の内
端面よりも内方に突出させている。そして、この雄ねじ
部１０に螺合したナット１１と上記支持段部８の段差面
１２との間で上記内輪３を挟持する事により、この内輪
３を上記ハブ２の所定位置に結合固定している。尚、上
記雄ねじ部１０の先端部外周面には、係止凹部１３を形
成している。そして、上記ナット１１を所定のトルクで
緊締した後、このナット１１の一部で上記係止凹部１３
に整合する部分を直径方向内方にかしめ付ける事によ
り、このナット１１の緩み止めを図っている。
【０００４】又、上記外輪４の内周面には、上記第一の
内輪軌道７と対向する第一の外輪軌道１４、及び、上記
第二の内輪軌道９に対向する第二の外輪軌道１５を形成
している。そして、これら第一、第二の内輪軌道７、９
と第一、第二の外輪軌道１４、１５との間に上記各転動
体５、５を、それぞれ複数個ずつ設けている。尚、図示
の例では、これら各転動体５、５として玉を使用してい
るが、重量の嵩む自動車用の転がり軸受ユニットの場合
には、これら転動体としてテーパころを使用する場合も
ある。
【０００５】上述の様な車輪支持用転がり軸受ユニット
１を自動車に組み付けるには、上記外輪４の外周面に形
成した第二のフランジ１６により、この外輪４を懸架装
置に固定し、上記第一のフランジ６に車輪を固定する。
この結果、この車輪を懸架装置に対し回転自在に支持す
る事ができる。
【０００６】又、特開平１１−１２９７０３号公報に
は、図５〜７に示す様な車輪支持用転がり軸受ユニット
１ａが記載されている。この従来構造の第２例の車輪支
持用転がり軸受ユニット１ａは、ハブ２ａと、内輪３
と、外輪４と、複数個の転動体５、５とを備える。この
うちのハブ２ａの外周面の外端寄り部分には、車輪を支
持する為の第一のフランジ６を形成している。又、この
ハブ２ａの中間部外周面には第一の内輪軌道７を、同じ
く内端部には外径寸法が小さくなった支持段部８を、そ
れぞれ形成している。
【０００７】又、上記ハブ２ａの内端部には、上記内輪
３を固定する為のかしめ部１７を構成する為の円筒部１
８を形成している。この円筒部１８の肉厚は、図７に示
した、この円筒部１８を直径方向外方にかしめ広げる以
前の状態で、先端縁（図７の右端縁）に向かう程小さく
なっている。この為上記ハブ２ａの内端面に、奥部に向
かう程次第に内径が小さくなるテーパ孔１９を形成して
いる。
【０００８】上記ハブ２ａの内端部に上記内輪３を固定
すべく、上述の様な円筒部１８の先端部をかしめ広げる
には、上記ハブ２ａが軸方向にずれ動かない様に固定し
た状態で、図６に示す様に、押型２０を上記円筒部１８
の先端部に強く押し付ける。この押型２０の先端面（図
６の左端面）中央部には、上記円筒部１８の内側に押し
込み自在な円錐台状の凸部２１を形成し、この凸部２１
の周囲に断面円弧状の凹部２２を、この凸部２１の全周
を囲む状態で形成している。尚、この凹部２２の断面形
状は、この凹部２２により上記円筒部１８の先端部を塑
性変形させる事で得られるかしめ部１７の断面形状が、
基端部から先端部に向かう程厚さ寸法が漸次小さくなる
様に、特にこの厚さ寸法が先端部で急激に小さくなる様
に、外径側に向かう程曲率半径が小さくなる複合曲面と
している。
【０００９】上述の様な形状並びに寸法の凸部２１と凹
部２２とを有する押型２０を上記円筒部１８の先端部に
押し付ければ、この円筒部１８の先端部を直径方向外方
にかしめ広げて、上記かしめ部１７を形成する事ができ
る。そして、このかしめ部１７とハブ２ａの内端部に形
成した支持段部８の段差面１２との間で上記内輪３を挟
持して、この内輪３を上記ハブ２ａに固定できる。
【００１０】尚、上記円筒部１８を塑性変形させて（か
しめ広げて）上記かしめ部１７を形成する作業を行なう
のに好ましくは、図８に示す様な揺動プレス装置２３を
使用する。この揺動プレス装置２３は、押型２０と、抑
え治具２４と、ホルダ２５とを備える。上記円筒部１８
をかしめ広げて上記かしめ部１７を形成する際には、上
記ホルダ２５を介して上記ハブ２ａを上方に押圧しつ
つ、上記押型２０を揺動させる。即ち、この押型２０の
中心軸と上記ハブ２ａの中心軸とを角度θだけ傾斜させ
た状態で、この押型２０に、このハブ２ａの中心軸を中
心とする歳差運動の如き揺動運動をさせる。この様な揺
動プレスにより上記かしめ部１７を形成する際には、上
記押型２０の円周方向の一部が上記円筒部１８を押圧す
る事になり、上記かしめ部１７の加工作業は部分的に且
つ円周方向に連続して進行する事になる。この為、一般
的な鍛造加工により上記かしめ部１７を形成する場合に
比べて、加工時に上記円筒部１８に加える荷重を小さく
できる。尚、上記抑え治具２４は、上記押型２０による
かしめ部１７の加工時に上記ハブ２ａ及び内輪３が径方
向に振れる事を防止する。
【００１１】
【発明が解決しようとする課題】ところで、上述の様な
揺動かしめにより円筒部１８をかしめ広げてかしめ部１
７を形成する場合、押型２０の形状や揺動角度、押し付
け荷重等の各種条件にもよるが、このかしめ広げ作業に
伴って内輪３を外嵌する支持段部８に、外径が拡大する
方向の力が加わる可能性ある。この結果、上記円筒部１
８にかしめ部１７を形成した状態で、上記支持段部８の
外径が拡大し、この支持段部８に外嵌した内輪３に過大
な引っ張り応力が加わる可能性がある。そして、この様
に内輪３に過大な引っ張り応力が加わると、この内輪３
の外周面に形成した第二の内輪軌道９が径方向に歪む
他、著しい場合にはこの内輪３に亀裂等の損傷が発生
し、車輪支持用転がり軸受ユニットとして機能しなくな
る可能性がある。
【００１２】この様な支持段部８の外径が拡大する事に
より、上記内輪３に過大な引っ張り応力が加わる事を防
止すべく、図９に示す様な構造が考えられる。即ち、内
輪３を外嵌する支持段部８の外径に比べて、かしめ部１
７（図８参照）となる円筒部１８の外径を小さくする事
により、これら支持段部８と円筒部１８との間部分に段
差部２６を設ける。より具体的には、この円筒部１８の
基端部外周面で、上記内輪３の内端開口部に形成した、
断面形状が四分の一円弧状の曲面部２７よりも少しだけ
第二の内輪軌道９に寄った部分に、段差Ｈを有する断面
円弧状の段差部２６を形成する。この様に段差部２６を
設けた場合には、上記円筒部１８を直径方向外方にかし
め広げる際に、この段差部２６がかしめ広げ作業に伴っ
て折れ曲がる部分の起点となる。この為、かしめ広げ作
業に伴って上記円筒部１８に無理な力が加わりにくくな
り、上記支持段部８の外径を拡大しにくくできる。
【００１３】ところが、この様に段差部２６を設けた場
合でも、内輪３に引っ張り応力が加わる事を阻止できな
い可能性がある。即ち、上記段差部２６を設ける事によ
りこの段差部２６を起点にかしめ部１７が形成されて
も、上記支持段部８の内端部で上記段差部２６近傍の外
径は、上記円筒部１８がかしめ広げられるにつられて拡
大する可能性がある。そして、この様に円筒部１８につ
られて支持段部８の内端部が拡大すると、やはり上述し
た様に内輪３に過大な引っ張り応力が加わり、著しい場
合には上記第二の内輪軌道９が歪んだり、上記内輪３に
亀裂等の損傷が発生したりする可能性がある。本発明の
車輪支持用転がり軸受ユニットは、この様な事情に鑑み
て発明したものである。
【００１４】
【課題を解決するための手段】本発明の車輪支持用転が
り軸受ユニットは、前述した従来の車輪支持用転がり軸
受ユニットと同様に、一端部外周面に第一のフランジを
形成し、中間部外周面に第一の内輪軌道を直接又は別体
の内輪を介して設けたハブと、このハブの他端部に形成
した支持段部に外嵌され、外周面に第二の内輪軌道を形
成した内輪と、内周面に上記第一の内輪軌道に対向する
第一の外輪軌道及び上記第二の内輪軌道に対向する第二
の外輪軌道を形成した外輪と、上記第一、第二の内輪軌
道と上記第一、第二の外輪軌道との間に、それぞれ複数
個ずつ設けられた転動体とを備える。そして、上記支持
段部の他端部で少なくともこの支持段部に外嵌した内輪
よりも突出した部分に形成した円筒部を直径方向外方に
かしめ広げる事で形成したかしめ部により、上記ハブに
外嵌した内輪をこのハブに結合固定している。
【００１５】特に、本発明の車輪支持用転がり軸受ユニ
ットに於いては、上記支持段部の一部でかしめ広げ作業
に伴って折れ曲がる部分の起点となる部分よりも一端に
寄った部分のうちの他端側の外径を、同じくこの一端に
寄った部分のうちの一端側の外径に比べて小さくしてい
る。この為に、例えば上記支持段部の一部で上記起点と
なる部分よりも一端に寄った部分の外周面を、軸方向他
端側に向かう程外径が小さくなるテーパ状とする。又
は、この部分の外周面のうちの他半部の外径を一半部の
外径に比べて小さくしたり、或は、この部分の外周面の
うちの他半部を軸方向他端側に向かう程外径が小さくな
るテーパ状としたりする。
【００１６】
【作用】上述の様に構成する本発明の車輪支持用転がり
軸受ユニットによれば、円筒部をかしめ広げる事により
かしめ部を形成した状態で、支持段部に外嵌した内輪に
過大な応力が加わる事を防止できる。即ち、この支持段
部の一部でかしめ広げ作業に伴って折れ曲がる部分の起
点となる部分よりも一端に寄った部分のうちの他端側の
外径を、同じくこの一端に寄った部分のうちの一端側の
外径に比べて小さくしている為、押型の形状等の各種条
件により、かしめ広げ作業に伴って上記支持段部の他端
部で上記起点となる部分近傍の外径が拡大したとして
も、上記内輪に過大な引っ張り応力が加わる程この支持
段部の外径が拡大する事を防止できる。この為、上記内
輪の外周面に形成した第二の内輪軌道が径方向に歪んだ
り、この内輪に亀裂等の損傷が発生したりする事を防止
できる。
【００１７】
【発明の実施の形態】図１は、本発明の実施の形態の第
１例を示している。尚、本発明の特徴は、ハブ２ｂの内
端部外周面に形成した支持段部８ａに内輪３（図５〜９
参照）を外嵌固定する部分の構造に関する。車輪支持用
転がり軸受ユニット１ａ全体の構造及び作用は、前述の
図５に示した従来構造の第２例や、同じく図９に示した
本発明の参考となる構造と同様であるから、同等部分に
関する説明は、省略若しくは簡略にし、以下、本発明の
特徴部分を中心に説明する。
【００１８】本例の車輪支持用転がり軸受ユニット１ａ
の場合、ハブ２ｂの内端部に形成した支持段部８ａの一
部で、かしめ広げ作業に伴って折れ曲がる部分の起点と
なる部分である段差部２６よりも外端に寄った部分のう
ちの内端側の外径ｄ1 を、同じくこの外端側部分のうち
の外端側の外径ｄ2 に比べて小さくしている（ｄ1 ＜ｄ
2 ）。即ち、上記支持段部８ａの一部で上記段差部２６
よりも外端に寄った部分の外周面を、軸方向内端側に向
かう程外径が小さくなる方向に僅か（図１は傾斜角度を
誇張して描いている。）に傾斜したテーパ状とし、この
外端に寄った部分をテーパ面部２８としている。尚、好
ましくは、この様に支持段部８ａの一部をテーパ状とし
た場合でも、この支持段部８ａの内端部に形成した円筒
部１８をかしめ広げてかしめ部１７（図８参照）を形成
する前の状態で、上記内輪３の少なくとも外端部内周面
を上記支持段部８ａの外周面に締り嵌めにより外嵌自在
とする。そして、この内輪３の外端面を上記支持段部８
ａの段差面１２に突き当てた状態で、各転動体５、５
（図５〜９参照）に所望の予圧を付与する。
【００１９】即ち、上記締り嵌めに基づいて上記内輪３
に加わる静止摩擦力を、上記各転動体５、５に付与され
た予圧に基づいてこの内輪３に加わる軸方向荷重よりも
大きくする。この様に支持段部８ａと内輪３との嵌め合
いを規制すれば、上述の様にこの内輪３の外端面を上記
段差面１２に突き当てて上記各転動体５、５に所望の予
圧を付与した状態で、上記円筒部１８をかしめ広げる以
前でも、上記内輪３をそのまま（内輪３の外端面を段差
面１２に突き当てたまま）の位置に保持できる。言い換
えれば、前述の図８に示す様な揺動かしめにより上記か
しめ部１７を形成する際に、上記ハブ２ｂに対して上記
内輪３が変位する事がなくなる。
【００２０】上述の様に上記内輪３を上記ハブ２ｂの支
持段部８ａに締り嵌めで外嵌すると共に、上記各転動体
５、５に予圧を付与したならば、前述した従来技術の場
合と同様、揺動かしめにより上記円筒部１８を直径方向
外方にかしめ広げる事で、上記かしめ部１７を形成す
る。特に本例の車輪用転がり軸受ユニットの場合には、
この様に円筒部１８をかしめ広げる事によりかしめ部１
７を形成した状態で、上記支持段部８ａに外嵌した内輪
３に過大な応力が加わる事を防止できる。即ち、この支
持段部８ａの一部で上記段差部２６よりも外端に寄った
部分のうちの内端側の外径ｄ1 を、同じくこの外端に寄
った部分のうちの外端側の外径ｄ2 に比べて小さく（ｄ
1 ＜ｄ2 ）している為、かしめ広げ作業に伴って上記支
持段部８ａの内端部で上記段差部２６近傍の外径が拡大
したとしても、上記内輪３に過大な引っ張り応力が加わ
る程この支持段部８ａの外径が拡大する事を防止でき
る。この為、上記内輪３の外周面に形成した第二の内輪
軌道９が径方向に歪んだり、この内輪３に亀裂等の損傷
が発生したりする事を防止できる。
【００２１】しかも、本例の場合、上記内輪３は、上記
かしめ部１７を形成する以前に上記ハブ２ｂの支持段部
８ａに外嵌し、上記各転動体５、５に予圧を付与した状
態のまま、この予圧に基づく軸方向荷重に拘らず、上記
内輪３の外端面と上記ハブ２ｂの外周面に形成した段差
面１２とが当接した状態のままとなる。従って、上記か
しめ部１７の形成作業に伴って上記内輪３に、この内輪
３及び上記ハブ２ｂの中心軸に対し傾斜方向の力が加わ
っても、この内輪３の外端開口周縁部が上記支持段部８
ａの外周面と強く擦れ合ったり、この内輪３の中心軸が
上記ハブ２ｂの中心軸に対し傾斜する事を防止できる。
尚、本例の場合、第一の内輪軌道７（図示省略）を上記
ハブ２ｂの外周面に直接形成しているが、外周面に第一
の内輪軌道を形成した別体の内輪を外嵌しても良い。
【００２２】次に、図２は、本発明の実施の形態の第２
例を示している。本例の場合も、ハブ２ｂの内端部に形
成した支持段部８ｂの一部で、かしめ広げ作業に伴って
折れ曲がる部分の起点となる部分である段差部２６より
も外端に寄った部分のうちの内端側の外径ｄ1 を、同じ
くこの外端に寄った部分のうちの外端側の外径ｄ2 に比
べて小さくしている（ｄ1 ＜ｄ2 ）。この為に、本例の
場合は、この支持段部８ｂの一部で上記段差部２６より
も外端に寄った部分の外周面のうちの内半部の外径ｄ1
を、同じく外半部の外径ｄ2 に比べて僅かに（図２は両
外径ｄ1 、ｄ2の差を誇張して描いている。）小さくす
る事により、この支持段部８ｂを大径部２９と小径部３
０とにより構成している。又、本例の場合も、上記支持
段部８ｂの内端部に形成した円筒部１８をかしめ広げて
かしめ部１７（図８参照）を形成する前の状態で、内輪
３（図５〜９参照）を上記支持段部８ｂのうちの少なく
とも上記大径部２９に締り嵌めにより外嵌自在としてい
る。その他の構成及び作用は、上述した第１例と同様で
あるから、重複する説明は省略する。
【００２３】次に、図３は、本発明の実施の形態の第３
例を示している。本例の場合も、ハブ２ｂの内端部に形
成した支持段部８ｃの一部で、かしめ広げ作業に伴って
折れ曲がる部分の起点となる部分である段差部２６より
も外端に寄った部分のうちの内端側の外径ｄ1 を、同じ
くこの外端に寄った部分のうちの外端側の外径ｄ2 に比
べて小さくしている（ｄ1 ＜ｄ2 ）。この為、本例の場
合は、この支持段部８ｃの一部で上記段差部２６よりも
外端に寄った部分の外周面のうちの内半部の外周面を、
軸方向内端側に向かう程外径が小さくなる方向に僅かに
傾斜した（図３は、傾斜角度を誇張して描いている。）
テーパ面部２８ａとしている。又、本例の場合も、上記
支持段部８ｃの内端部に形成した円筒部１８をかしめ広
げてかしめ部１７（図８参照）を形成する前の状態で、
内輪３（図５〜９参照）を上記支持段部８ｃのうちの少
なくとも外半部に締り嵌めにより外嵌自在としている。
その他の構成及び作用は、前述した第１例と同様である
から、重複する説明は省略する。
【００２４】
【発明の効果】本発明は、以上に述べた通り構成され作
用するので、小型且つ軽量な車輪支持用転がり軸受ユニ
ットを安定して得る事ができる。Description: BACKGROUND OF THE INVENTION A rolling bearing unit for supporting a wheel according to the present invention is used to rotatably support a wheel of an automobile with respect to a suspension device. 2. Description of the Related Art Wheels of a motor vehicle are supported by a suspension device by means of wheel-supporting rolling bearing units. FIG. 4 shows a first example of a rolling bearing unit for supporting a wheel, which has been widely practiced conventionally. The wheel supporting rolling bearing unit 1 includes a hub 2, an inner ring 3, an outer ring 4, and a plurality of rolling elements 5, 5. Of these, the outer end of the outer peripheral surface of the hub 2 (the term "outside in the axial direction" refers to the side that is shifted outward in the width direction when assembled to an automobile, and is the left side of each figure except FIG. 8. The side closer to the center in the direction is referred to as the inner side, and is the right side in each of the figures except for FIG. 8). The first flange 6 for supporting the wheels is formed on the side. A first inner raceway 7 is formed on the outer peripheral surface of the intermediate portion of the hub 2, and a support step 8 having a smaller outer diameter is formed on the inner end of the hub 2. The inner race 3 having a second inner raceway 9 formed on the outer peripheral surface thereof is fitted to the support step portion 8. A male thread 10 is formed at the inner end of the hub 2, and the tip (right end in FIG. 4) of the male thread 10 protrudes inward from the inner end surface of the inner race 3. The inner ring 3 is held at a predetermined position on the hub 2 by clamping the inner ring 3 between a nut 11 screwed into the male screw portion 10 and a step surface 12 of the supporting step 8. I have. A locking recess 13 is formed on the outer peripheral surface of the distal end of the male screw portion 10. Then, after tightening the nut 11 with a predetermined torque, the locking recess 13
The nut 11 is prevented from loosening by caulking a portion that matches with inward in the diameter direction. A first outer raceway 14 facing the first inner raceway 7 and a second outer raceway 15 facing the second inner raceway 9 are provided on the inner peripheral surface of the outer race 4. Is formed. And, these first and second inner raceways 7, 9
The plurality of rolling elements 5 are provided between the first and second outer raceways 14 and 15 respectively. In the illustrated example, balls are used as the rolling elements 5 and 5. However, in the case of a heavy-duty rolling bearing unit for an automobile, tapered rollers may be used as these rolling elements. In order to assemble the above-described wheel supporting rolling bearing unit 1 into an automobile, the outer ring 4 is fixed to a suspension device by a second flange 16 formed on the outer peripheral surface of the outer ring 4, and the first The wheel is fixed to the flange 6 of.
As a result, the wheels can be rotatably supported by the suspension device. Japanese Unexamined Patent Publication No. 11-129703 describes a rolling bearing unit 1a for supporting a wheel as shown in FIGS. The wheel supporting rolling bearing unit 1a of the second example of the conventional structure includes a hub 2a and an inner ring 3
, An outer ring 4, and a plurality of rolling elements 5, 5. A first flange 6 for supporting a wheel is formed at a portion of the outer peripheral surface of the hub 2a near the outer end. A first inner raceway 7 is formed on the outer peripheral surface of the intermediate portion of the hub 2a, and a supporting step 8 having a smaller outer diameter is formed on the inner end. A cylindrical portion 1 for forming a caulking portion 17 for fixing the inner ring 3 is provided at the inner end of the hub 2a.
8 are formed. The thickness of the cylindrical portion 18 becomes smaller toward the leading edge (the right edge in FIG. 7) in a state before the cylindrical portion 18 is crimped outward in the diameter direction as shown in FIG. For this reason, a tapered hole 19 is formed in the inner end surface of the hub 2a. In order to fix the inner ring 3 to the inner end of the hub 2a and to widen the tip of the cylindrical portion 18 as described above, the hub 2a is fixed so as not to shift in the axial direction. Then, as shown in FIG.
Press firmly on the tip of. At the center of the tip end surface (left end surface in FIG. 6) of the pressing die 20, a truncated cone-shaped convex portion 21 which can be pushed into the inside of the cylindrical portion 18 is formed.
A concave portion 22 having an arc-shaped cross section is formed around the periphery of the convex portion 21. The cross-sectional shape of the concave portion 22 is such that the cross-sectional shape of the caulking portion 17 obtained by plastically deforming the distal end of the cylindrical portion 18 by the concave portion 22 is as follows.
A composite curved surface is formed such that the radius of curvature becomes smaller toward the outer diameter side so that the thickness dimension becomes gradually smaller from the base end portion to the tip end portion, in particular, such that the thickness dimension becomes sharply smaller at the tip end portion. . When a pressing die 20 having a convex portion 21 and a concave portion 22 having the above-described shape and dimensions is pressed against the distal end of the cylindrical portion 18, the distal end of the cylindrical portion 18 is swaged outward in the diameter direction. Thus, the caulking portion 17 can be formed. The inner ring 3 can be fixed to the hub 2a by clamping the inner ring 3 between the caulking portion 17 and the step surface 12 of the supporting step 8 formed at the inner end of the hub 2a. In order to form the caulked portion 17 by plastically deforming (caulking) the cylindrical portion 18, it is preferable to use an oscillating press device 23 as shown in FIG. The swing press device 23 includes a pressing die 20, a holding jig 24, and a holder 25. The cylindrical part 18
When the caulking portion 17 is formed by caulking and spreading, the pressing die 20 is swung while pressing the hub 2 a upward through the holder 25. That is, in a state where the center axis of the pressing die 20 and the center axis of the hub 2a are inclined by the angle θ, the pressing die 20 is subjected to a rocking motion such as a precession motion about the center axis of the hub 2a. Let it. When the caulking portion 17 is formed by such an oscillating press, a part of the pressing die 20 in the circumferential direction presses the cylindrical portion 18, and the working of the caulking portion 17 is partially performed. And proceed continuously in the circumferential direction. Therefore, the load applied to the cylindrical portion 18 at the time of working can be reduced as compared with the case where the caulked portion 17 is formed by general forging. The pressing jig 24 prevents the hub 2a and the inner ring 3 from swaying in the radial direction when the caulking portion 17 is processed by the pressing die 20. [0011] By the way, the cylindrical portion 18 is swaged and widened by the above-described swinging to form the swaged portion 1.
When forming 7, the outer diameter increases to the supporting step portion 8 on which the inner ring 3 is fitted externally with the caulking and spreading operation, although it depends on various conditions such as the shape of the pressing die 20, the swing angle, the pressing load, and the like. Directional forces may be applied. As a result, the cylindrical portion 1
In a state where the caulking portion 17 is formed on the support step 8, the outer diameter of the supporting step 8 may be increased, and an excessive tensile stress may be applied to the inner ring 3 fitted to the supporting step 8. When an excessive tensile stress is applied to the inner ring 3 in this manner, the inner ring 3
In addition to radial distortion of the second inner raceway 9 formed on the outer peripheral surface of the inner race, there is a possibility that damage such as cracks may occur in the inner race 3 in a severe case, and the inner race 3 may not function as a wheel supporting rolling bearing unit. A structure as shown in FIG. 9 is conceivable in order to prevent an excessive tensile stress from being applied to the inner ring 3 due to an increase in the outer diameter of the supporting step portion 8. That is, as compared with the outer diameter of the support step 8 to which the inner ring 3 is fitted, the swaged portion 1
7 (see FIG. 8), a step 26 is provided between the support step 8 and the cylindrical portion 18 by reducing the outer diameter of the cylindrical portion 18. More specifically, the outer peripheral surface of the base end of the cylindrical portion 18 is formed at the inner end opening of the inner ring 3.
An arc-shaped step 26 having a step H is formed at a portion slightly closer to the second inner raceway 9 than the curved surface 27 having a quarter-arc cross section. When the step portion 26 is provided in this manner, when the cylindrical portion 18 is crimped outward in the diametrical direction, the step portion 26 serves as a starting point of a portion that is bent with the crimping operation. For this reason, an excessive force is less likely to be applied to the cylindrical portion 18 during the swaging operation, and the outer diameter of the supporting step 8 can be hardly enlarged. However, even when the step portion 26 is provided in this manner, there is a possibility that the application of a tensile stress to the inner race 3 cannot be prevented. That is, even if the caulking portion 17 is formed starting from the stepped portion 26 by providing the stepped portion 26, the outer diameter near the stepped portion 26 at the inner end of the supporting stepped portion 8 is reduced to the cylindrical portion 18. May expand as crimped. When the inner end of the supporting step 8 is enlarged by being attached to the cylindrical portion 18 as described above, an excessive tensile stress is also applied to the inner ring 3 as described above. There is a possibility that the inner ring 3 may be distorted or a damage such as a crack may occur in the inner ring 3. The rolling bearing unit for supporting a wheel of the present invention has been invented in view of such circumstances. [0014] A wheel supporting rolling bearing unit according to the present invention has a first flange formed on an outer peripheral surface at one end, similarly to the above-described conventional wheel supporting rolling bearing unit. A hub provided with a first inner raceway directly or via a separate inner race on the outer peripheral surface of the intermediate part, and a support step formed on the other end of the hub, and a second inner raceway on the outer peripheral surface And an outer ring on the inner peripheral surface of which a first outer raceway facing the first inner raceway and a second outer raceway facing the second inner raceway, the first and second A plurality of rolling elements are provided between the two inner raceways and the first and second outer raceways, respectively. At the other end of the support step, at least the cylindrical portion formed at a portion protruding from the inner ring which is fitted to the support step at least is crimped outwardly in the diametric direction. The outer ring fitted to the outside is fixedly connected to the hub. Particularly, in the rolling bearing unit for supporting a wheel according to the present invention, a part of the part of the supporting step which is closer to one end than a part which is a starting point of a part which bends due to caulking and widening work. The outer diameter of the other end is smaller than the outer diameter of one end of the portion that is also close to the one end. For this purpose, for example, the outer peripheral surface of a part of the support step portion closer to one end than the part serving as the starting point is tapered so that the outer diameter decreases toward the other end in the axial direction. Or, the outer diameter of the other half of the outer peripheral surface of this part is smaller than the outer diameter of one half, or the other half of the outer peripheral surface of this part is located on the other end side in the axial direction. It is tapered so that the outer diameter decreases as it goes. According to the rolling bearing unit for supporting a wheel of the present invention having the above-described configuration, the inner ring externally fitted to the supporting step is excessively enlarged while the swaging portion is formed by swaging the cylindrical portion. Can be prevented from being applied with excessive stress. That is, the outer diameter of the other end side of the portion closer to one end than the portion that is the starting point of the portion that bends due to the crimping work in a part of the supporting step portion, and the outer diameter of the portion that is also closer to this one end The outer diameter near the starting point at the other end of the supporting step is enlarged due to the crimping work due to various conditions such as the shape of the stamping die. Even if this is the case, it is possible to prevent the outer diameter of the supporting step from increasing as excessive tensile stress is applied to the inner ring. For this reason, it is possible to prevent the second inner raceway formed on the outer peripheral surface of the inner race from being distorted in the radial direction, and to prevent the inner race from being damaged such as a crack. FIG. 1 shows a first embodiment of the present invention. The feature of the present invention is that a support step 8a formed on the outer peripheral surface of the inner end of the hub 2b has an inner ring 3 (FIGS. 5 to 9).
(See FIG. 2). The structure and operation of the entire wheel supporting rolling bearing unit 1a are the same as those of the second example of the conventional structure shown in FIG. 5 and the structure of the present invention also shown in FIG. The description will be omitted or simplified, and the following description will focus on the features of the present invention. Rolling bearing unit 1a for supporting wheels of the present embodiment
In the case of, the part of the support step 8a formed at the inner end of the hub 2b, which is closer to the outer end than the step 26, which is the starting point of the part that bends with the swaging work, The outer diameter d 1 on the inner end side is smaller than the outer diameter d 2 on the outer end side of the outer end side portion (d 1 <d
2 ). In other words, a part of the supporting step 8a forms the step 26
The outer peripheral surface of the portion closer to the outer end is tapered slightly (in FIG. 1, the inclination angle is exaggerated) so that the outer diameter decreases toward the inner end side in the axial direction. The portion close to the outer end is a tapered surface portion 28. Preferably, even when a part of the supporting step 8a is tapered, the cylindrical section 18 formed at the inner end of the supporting step 8a is swaged and expanded to form the swaging section 17 (see FIG. 8). In the state before forming, the inner peripheral surface of at least the outer end portion of the inner ring 3 is externally fittable to the outer peripheral surface of the support step 8a by tight fitting. Then, the outer end surface of the inner ring 3 is
a, the rolling elements 5, 5
(See FIGS. 5 to 9). That is, based on the interference fit, the inner race 3
Is made larger than the axial load applied to the inner race 3 based on the preload applied to the rolling elements 5 and 5. If the fitting between the supporting step 8a and the inner race 3 is regulated in this way, the outer end surface of the inner race 3 is brought into contact with the step surface 12 to apply a desired preload to the rolling elements 5, 5 as described above. In this state, the inner ring 3 can be held at the same position (with the outer end face of the inner ring 3 abutting against the step surface 12) even before the cylindrical portion 18 is swaged and spread. In other words, the inner ring 3 is not displaced with respect to the hub 2b when the caulking portion 17 is formed by rocking as shown in FIG. As described above, if the inner ring 3 is externally fitted to the support step 8a of the hub 2b by interference fit and a preload is applied to each of the rolling elements 5 and 5, the above-described case of the prior art will be described. Similarly, the caulking portion 17 is formed by caulking and expanding the cylindrical portion 18 outward in the diameter direction by rocking. Especially in the case of the rolling bearing unit for wheels of this example,
By swaging the cylindrical portion 18 in this manner, the swaging portion 1 is formed.
In a state in which the inner ring 3 is formed, it is possible to prevent an excessive stress from being applied to the inner ring 3 which is fitted to the support step 8a. That is, the outer diameter d 1 of the inner end side of the portion of the support step 8a closer to the outer end than the step 26 is set to the outer end side of the portion also closer to the outer end. Smaller than the outer diameter d 2 of (d
1 <d 2 ), an excessive tensile stress is applied to the inner ring 3 even if the outer diameter near the step 26 increases at the inner end of the support step 8 a with the caulking work. Thus, the outer diameter of the supporting step 8a can be prevented from increasing. For this reason, it is possible to prevent the second inner raceway 9 formed on the outer peripheral surface of the inner race 3 from being distorted in the radial direction, and preventing the inner race 3 from being damaged such as a crack. In addition, in the case of this embodiment, the inner ring 3 is fitted to the supporting step 8a of the hub 2b before the caulking portion 17 is formed, and the rolling elements 5, 5 are preloaded. Regardless of the axial load based on the preload, the outer end surface of the inner ring 3 and the step surface 12 formed on the outer peripheral surface of the hub 2b remain in a state of contact. Therefore, even if a force is applied to the inner race 3 in the direction of inclination with respect to the center axis of the inner race 3 and the hub 2b during the forming operation of the caulking portion 17, the outer peripheral edge of the outer end opening of the inner race 3 is supported by the support. Step 8
a, and the center axis of the inner ring 3 can be prevented from being inclined with respect to the center axis of the hub 2b.
In the case of this example, the first inner raceway 7 (not shown) is formed directly on the outer peripheral surface of the hub 2b. However, a separate inner race having the first inner raceway formed on the outer peripheral surface is externally fitted. You may. FIG. 2 shows a second embodiment of the present invention.
An example is shown. Also in the case of this example, a part closer to the outer end than the step part 26 which is a part of the supporting step part 8b formed at the inner end part of the hub 2b and serving as a starting point of a part that bends due to swaging work. the outer diameter d 1 of the inner end of, and smaller also than the outer diameter d 2 of the outer end of the closer portion to the outer end (d 1 <d 2). For this reason, in the case of this example, the outer diameter d 1 of the inner half part of the outer peripheral surface of the part of the support step 8b closer to the outer end than the step 26 is provided.
Is slightly smaller than the outer diameter d 2 of the outer half (FIG. 2 shows the difference between the outer diameters d 1 and d 2 exaggerated). Large diameter part 29 and small diameter part 3
0. Also in the case of this example, the inner ring 3 (FIGS. 5 to 9) is in a state before the cylindrical portion 18 formed at the inner end of the supporting step portion 8b is swaged to form the swaged portion 17 (see FIG. 8). ) Can be externally fitted to at least the large-diameter portion 29 of the supporting step 8b by interference fitting. Other configurations and operations are the same as those of the above-described first example, and thus redundant description will be omitted. FIG. 3 shows a third embodiment of the present invention.
An example is shown. Also in the case of this example, a part closer to the outer end than the step part 26 which is a part of the supporting step part 8c formed at the inner end part of the hub 2b and serving as a starting point of a part that bends with the swaging work. the outer diameter d 1 of the inner end of, and smaller also than the outer diameter d 2 of the outer end of the closer portion to the outer end (d 1 <d 2). For this reason, in the case of this example, the outer peripheral surface of the inner half part of the outer peripheral surface of a part of the support step 8c closer to the outer end than the step 26 is
It is slightly inclined in such a direction that the outer diameter becomes smaller toward the inner end side in the axial direction (FIG. 3 exaggerates the inclination angle).
It is a tapered surface portion 28a. Also in the case of this example, the cylindrical portion 18 formed at the inner end of the supporting step 8c is swaged and expanded to form the swaging portion 17 (see FIG. 8).
The inner ring 3 (see FIGS. 5 to 9) is freely fitted to at least the outer half of the support step 8c by interference fit.
Other configurations and operations are the same as those of the above-described first example, and thus redundant description will be omitted. Since the present invention is constructed and operates as described above, a small and lightweight rolling bearing unit for supporting wheels can be stably obtained.
【図面の簡単な説明】
【図１】本発明の実施の形態の第１例を、かしめ部を形
成する以前の状態で示す部分断面図。
【図２】同第２例を示す図１と同様の図。
【図３】同第３例を示す図１と同様の図。
【図４】従来構造の第１例を示す半部断面図。
【図５】同第２例を示す半部断面図。
【図６】第２例の構造の製造時にハブに内輪を固定する
為、このハブの内端部をかしめ広げる状態を示す部分拡
大断面図。
【図７】同じくハブの内端部をかしめ広げる以前の状態
で示す部分拡大断面図。
【図８】揺動プレス装置の要部縦断面図。
【図９】本発明の参考となる構造の１例を示す、図７と
同様の図。
【符号の説明】
１、１ａ 車輪支持用転がり軸受ユニット
２、２ａ、２ｂ ハブ
３ 内輪
４ 外輪
５ 転動体
６ 第一のフランジ
７ 第一の内輪軌道
８、８ａ、８ｂ、８ｃ 支持段部
９ 第二の内輪軌道
１０ 雄ねじ部
１１ ナット
１２ 段差面
１３ 係止凹部
１４ 第一の外輪軌道
１５ 第二の外輪軌道
１６ 第二のフランジ
１７ かしめ部
１８ 円筒部
１９ テーパ孔
２０ 押型
２１ 凸部
２２ 凹部
２３ 揺動プレス装置
２４ 抑え治具
２５ ホルダ
２６ 段差部
２７ 曲面部
２８、２８ａ テーパ面部
２９ 大径部
３０ 小径部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional view showing a first example of an embodiment of the present invention in a state before a caulked portion is formed. FIG. 2 is a view similar to FIG. 1, showing the second example; FIG. 3 is a view similar to FIG. 1, showing a third example; FIG. 4 is a half sectional view showing a first example of a conventional structure. FIG. 5 is a half sectional view showing the second example. FIG. 6 is a partially enlarged cross-sectional view showing a state in which an inner end portion of the hub is swaged and widened in order to fix the inner ring to the hub at the time of manufacturing the structure of the second example. FIG. 7 is a partially enlarged sectional view showing a state before the inner end portion of the hub is swaged. FIG. 8 is a longitudinal sectional view of a main part of the swing press device. FIG. 9 is a view similar to FIG. 7, showing an example of a structure serving as a reference of the present invention; DESCRIPTION OF SYMBOLS 1, 1a Wheel supporting rolling bearing unit 2, 2a, 2b Hub 3 Inner ring 4 Outer ring 5 Rolling element 6 First flange 7 First inner ring raceway 8, 8a, 8b, 8c Support step 9 Second inner raceway 10 Male thread 11 Nut 12 Stepped surface 13 Locking recess 14 First outer raceway 15 Second outer raceway 16 Second flange 17 Swaged portion 18 Cylindrical portion 19 Tapered hole 20 Stamping die 21 Convex portion 22 Depressed portion 23 Oscillating press device 24 Suppression jig 25 Holder 26 Step 27 Curved surface 28, 28a Tapered surface 29 Large diameter portion 30 Small diameter portion
Claims (1)
し、中間部外周面に第一の内輪軌道を直接又は別体の内
輪を介して設けたハブと、このハブの他端部に形成した
支持段部に外嵌され、外周面に第二の内輪軌道を形成し
た内輪と、内周面に上記第一の内輪軌道に対向する第一
の外輪軌道及び上記第二の内輪軌道に対向する第二の外
輪軌道を形成した外輪と、上記第一、第二の内輪軌道と
上記第一、第二の外輪軌道との間に、それぞれ複数個ず
つ設けられた転動体とを備え、上記支持段部の他端部で
少なくともこの支持段部に外嵌した内輪よりも突出した
部分に形成した円筒部を直径方向外方にかしめ広げる事
で形成したかしめ部により、上記ハブに外嵌した内輪を
このハブに結合固定した車輪支持用転がり軸受ユニット
に於いて、上記支持段部の一部でかしめ広げ作業に伴っ
て折れ曲がる部分の起点となる部分よりも一端に寄った
部分のうちの他端側の外径を、同じくこの一端に寄った
部分のうちの一端側の外径に比べて小さくした事を特徴
とする車輪支持用転がり軸受ユニット。Claims: 1. A hub having a first flange formed on an outer peripheral surface of one end and a first inner raceway provided directly or via a separate inner race on an outer peripheral surface of an intermediate portion. An inner ring that is externally fitted to a support step formed at the other end of the hub, and has a second inner raceway formed on the outer peripheral surface; a first outer raceway facing the first inner raceway on the inner peripheral surface; An outer ring forming a second outer raceway facing the second inner raceway, and the first and second inner raceways and the first and second outer raceways are respectively provided in plurality between the first and second outer raceways. A rolling element, and a caulking portion formed by caulking and expanding a cylindrical portion formed at a portion protruding from at least the inner ring externally fitted to the supporting step at the other end of the supporting step and diametrically outward. A wheel supporting rolling bearing unit in which an inner ring externally fitted to the hub is connected and fixed to the hub. In the part of the supporting step portion, the outer diameter of the other end side of the portion closer to one end than the portion serving as the starting point of the portion that bends due to the work of caulking and spreading, the portion of the portion closer to this one end also A rolling bearing unit for supporting a wheel, characterized in that the diameter is smaller than the outer diameter of one end side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001187531A JP4682459B2 (en) | 2001-06-21 | 2001-06-21 | Manufacturing method of wheel bearing rolling bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001187531A JP4682459B2 (en) | 2001-06-21 | 2001-06-21 | Manufacturing method of wheel bearing rolling bearing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003004058A true JP2003004058A (en) | 2003-01-08 |
| JP4682459B2 JP4682459B2 (en) | 2011-05-11 |
Family
ID=19026806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001187531A Expired - Fee Related JP4682459B2 (en) | 2001-06-21 | 2001-06-21 | Manufacturing method of wheel bearing rolling bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4682459B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005249047A (en) * | 2004-03-03 | 2005-09-15 | Nsk Ltd | Hub unit for wheel |
| JP2007024208A (en) * | 2005-07-19 | 2007-02-01 | Ntn Corp | Bearing device for wheel |
| JP2007232120A (en) * | 2006-03-02 | 2007-09-13 | Ntn Corp | Wheel bearing device |
| WO2011027771A1 (en) * | 2009-09-02 | 2011-03-10 | トヨタ車体株式会社 | Mounting structure for rotating member |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11129703A (en) * | 1997-08-28 | 1999-05-18 | Nippon Seiko Kk | Rolling bearing unit for wheel supporting |
| JP2000087976A (en) * | 1998-09-09 | 2000-03-28 | Koyo Seiko Co Ltd | Bearing device |
| JP2001130210A (en) * | 1999-11-10 | 2001-05-15 | Koyo Seiko Co Ltd | Bearing device |
| JP2001241450A (en) * | 1999-12-20 | 2001-09-07 | Nsk Ltd | Rolling bearing unit for supporting wheel and its manufacturing method |
| JP2003507683A (en) * | 1999-08-25 | 2003-02-25 | ザ ティムケン カンパニー | Hub assembly with constrained ring and method of assembling the same |
-
2001
- 2001-06-21 JP JP2001187531A patent/JP4682459B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11129703A (en) * | 1997-08-28 | 1999-05-18 | Nippon Seiko Kk | Rolling bearing unit for wheel supporting |
| JP2000087976A (en) * | 1998-09-09 | 2000-03-28 | Koyo Seiko Co Ltd | Bearing device |
| JP2003507683A (en) * | 1999-08-25 | 2003-02-25 | ザ ティムケン カンパニー | Hub assembly with constrained ring and method of assembling the same |
| JP2001130210A (en) * | 1999-11-10 | 2001-05-15 | Koyo Seiko Co Ltd | Bearing device |
| JP2001241450A (en) * | 1999-12-20 | 2001-09-07 | Nsk Ltd | Rolling bearing unit for supporting wheel and its manufacturing method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005249047A (en) * | 2004-03-03 | 2005-09-15 | Nsk Ltd | Hub unit for wheel |
| JP4543705B2 (en) * | 2004-03-03 | 2010-09-15 | 日本精工株式会社 | Hub unit for wheels |
| JP2007024208A (en) * | 2005-07-19 | 2007-02-01 | Ntn Corp | Bearing device for wheel |
| JP2007232120A (en) * | 2006-03-02 | 2007-09-13 | Ntn Corp | Wheel bearing device |
| JP4521878B2 (en) * | 2006-03-02 | 2010-08-11 | Ｎｔｎ株式会社 | Wheel bearing device |
| WO2011027771A1 (en) * | 2009-09-02 | 2011-03-10 | トヨタ車体株式会社 | Mounting structure for rotating member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4682459B2 (en) | 2011-05-11 |
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