JP3979001B2 - Hub unit for vehicles - Google Patents

Hub unit for vehicles Download PDF

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Publication number
JP3979001B2
JP3979001B2 JP2000359576A JP2000359576A JP3979001B2 JP 3979001 B2 JP3979001 B2 JP 3979001B2 JP 2000359576 A JP2000359576 A JP 2000359576A JP 2000359576 A JP2000359576 A JP 2000359576A JP 3979001 B2 JP3979001 B2 JP 3979001B2
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Japan
Prior art keywords
caulking
constant velocity
velocity joint
hub unit
peripheral surface
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Expired - Fee Related
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JP2000359576A
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Japanese (ja)
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JP2001315502A (en
Inventor
一寿 戸田
勝 出口
信一郎 柏木
匡 御手洗
聡 荒木
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JTEKT Corp
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JTEKT Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0078—Hubs characterised by the fixation of bearings
    • B60B27/0084—Hubs characterised by the fixation of bearings caulking to fix inner race
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/025—Special design or construction with rolling or wobbling dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
    • 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
    • F16C19/187—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 all four raceways integrated on parts other than race rings, e.g. fourth 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
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D2003/22326—Attachments to the outer joint member, i.e. attachments to the exterior of the outer joint member or to the shaft of the outer joint member

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

Description

【０００１】
【発明の属する技術分野】
本発明は、ハブホイールの外周面に複列転がり軸受が、また、ハブホイールの内周面に等速ジョイントの外輪から連なる軸部がそれぞれ配設され、かつ、ハブホイールの軸方向外端部に一体形成される径方向外向きのフランジの外面にディスクブレーキ装置のディスクロータや車輪があてがわれた状態で前記等速ジョイントの外輪外周面の軸部側に位置する端部に前記複列転がり軸受を軸方向から受ける受け面が設けられ、前記等速ジョイントの軸部において軸方向外端側に径方向外向きに屈曲されて前記ハブホイールの軸方向外端面に対してかしめつけられる円筒部が設けられる車両用ハブユニットに関する。
【０００２】
【従来の技術】
図８を参照して従来のこの種における車両の駆動輪側に使用されるハブユニットについて説明する。車両用ハブユニットＡ１は、ハブホイール１１と、等速ジョイント１２と、複列転がり軸受１３とを備える。
【０００３】
ハブホイール１１は軸方向外端部に径方向外向きのフランジ１４を有し、このフランジ１４の外面にディスクロータ１７および車輪（図示省略）があてがわれた状態で取り付けられる。
【０００４】
等速ジョイント１２は、外輪２５に円筒軸部２６を設け、この円筒軸部２６の外周面がハブホイール１１の内周面にスプライン嵌合されている一方、円筒軸部２６の軸方向外端はかしめ用円筒部３４とされ、このかしめ用円筒部３４がハブホイール１１の軸方向外端面に径方向外向きに屈曲変形されてかしめつけられたかしめ部２２とされることでハブホイール１１に対し一体とされている。
【０００５】
複列転がり軸受１３は、二列の軌道溝を有する単一の外輪１９、二列で配設される複数の玉２０、ハブホイール１１の外周面を一方内輪、等速ジョイント１２の外周面を他方内輪とする構成を有し、かしめ部２２から前記両内輪が押し付けられていることにより、所要の予圧（圧縮応力）が付与され、かつ抜け止めされている。
【０００６】
前記かしめ作業について図９を参照して説明する。
【０００７】
まず、ハブユニットＡ１を基台４０上に載置し、所要のかしめ力でもってかしめ治具４２を下方へ押し込みつつこれを中心Ｏに対して所定のローリング角θでローリングさせて、かしめ用円筒部３４をハブホイール１１の軸方向外端面に径方向外向きに屈曲変形してかしめ部２２とする。
【０００８】
これによって、複列転がり軸受１３の内輪となるハブホイール１１および等速ジョイント１２の外周面にはかしめ後にかしめ部２２から予圧が付与される。この場合の予圧は、前記内輪から複列転がり軸受１３の玉２０に対する軸力（アキシャル荷重）として作用し、その外輪１９と前記内輪とを圧縮した状態として玉２０が外輪１９と内輪との間で適正に転動可能となる。この場合の軸力は、数トンにも及ぶ。
【０００９】
【発明が解決しようとする課題】
ところで、上記従来の車両用ハブユニットＡ１の構造の場合、上記かしめにより等速ジョイント１２の外輪２５が歪んで変形されてしまうことがある。このような外輪２５の変形歪みは、その傾動動作に支障を来すおそれがあり好ましくない。そこで、本出願人は、このような等速ジョイント１２の外輪２５における歪みの解消について鋭意研究した。その結果、前記かしめ荷重Ｐ１の作用方向に対して車両用ハブユニット支持領域が径方向外側に位置していた。この場合の車両用ハブユニット支持領域は、基台４０における等速ジョイント１２の外輪２５との当接箇所４０ａとなる。
【００１０】
この車両用ハブユニット支持領域にはかしめ荷重Ｐ１に対応した反力Ｐ２が発生しているために、等速ジョイント１２の外輪２５にはこれを変形させようとする偶力が発生し、これによって、等速ジョイント１２の外輪２５が歪んで変形していたことが判明した。
【００１１】
したがって、本発明においては、車両用ハブユニットにおいて、かしめの過程における等速ジョイントの変形を阻止することを可能とすることを解決すべき課題とする。
【００１２】
【課題を解決するための手段】
（１）本発明の車両用ハブユニットは、ハブホイールの外周面に複列転がり軸受が、また、ハブホイールの内周面に等速ジョイントの外輪から連なる軸部がそれぞれ配設され、かつ、ハブホイールの軸方向外端部に一体形成される径方向外向きのフランジの外面にディスクブレーキ装置のディスクロータや車輪があてがわれた状態で前記等速ジョイントの外輪外周面の軸部側に位置する端部に前記複列転がり軸受を軸方向から受ける受け面が設けられ、前記等速ジョイントの軸部において軸方向外端側に径方向外向きに屈曲されて前記ハブホイールの軸方向外端面に対してかしめつけられる円筒部が設けられる車両用ハブユニットであって、前記等速ジョイントの外輪内周面において前記かしめ時のかしめ荷重の作用方向に対して軸方向で正対する領域に、かしめ時においてかしめ荷重を受けるためのかしめ受け治具があてがわれる面が設けられている。
【００１３】
本発明によると、等速ジョイントの外輪においてかしめ時のかしめ荷重の作用方向に対して軸方向で正対する領域に、かしめ時においてかしめ荷重を受けるためのかしめ受け治具があてがわれる面が設けられているので、かしめ荷重の作用方向と、かしめ受け治具でのかしめ荷重に対する反力方向とが軸方向でほぼ一致する結果、等速ジョイントの外輪には前記かしめによる偶力が発生しなくなり、その結果、上記かしめにより、等速ジョイントの外輪は歪まなくなり、等速ジョイントは円滑な傾動動作が可能となり好ましいものとなる。
【００１４】
本発明の車両用ハブユニットは、好ましくは、前記複列転がり軸受が、二列の軌道溝を有する単一の外輪と、二列で配設される複数の転動体と、前記ハブホイールの外周面を一方内輪、前記等速ジョイントの外輪の外周面を他方内輪とする構成を有し、前記等速ジョイントが、前記二列の転動体間に対応する箇所でその中空内面を補強するための補強壁を備えている。
【００１５】
この実施態様によると、前記補強壁が複列転がり軸受の転動体列間に位置付けられているので、等速ジョイントを中空にして軽量にした場合の強度の低下を有効に防止し軸受の外輪に車体から静的あるいは動的な荷重が作用しても、等速ジョイントの変形を防止できて好ましい。
【００１６】
本発明の車両用ハブユニットは、好ましくは、前記等速ジョイントにおける円筒部の内面に、前記かしめ時において当該外輪を径方向内向きに変形させようとする荷重を受ける荷重受け部材が設けられている。
【００１７】
この実施態様によると、前記円筒部をハブホイールの軸方向外端面に径方向外向きに屈曲変形してかしめつけようとする場合、外輪に作用する径方向内向きの荷重を荷重受け部材で受け止めることができるから、等速ジョイントの外輪の外周面とハブホイールの内周面とのスプライン嵌合状態を良好に維持できて好ましい。
【００１８】
本発明の車両用ハブユニットは、好ましくは、前記荷重受け部材が、前記円筒部の自由端側開口を閉塞して等速ジョイント内部への異物の侵入を防止する蓋形状に形成されている。
【００１９】
この実施態様によると、その蓋形状の荷重受け部材により等速ジョイント内部への異物の侵入を防止できて好ましい。
【００２２】
【発明の実施の形態】
本発明の詳細を図面に示す実施形態に基づいて説明する。
【００２３】
図１および図２は本発明の一実施形態を示している。図１は、車両用ハブユニットの縦断側面図、図２は、車両用ハブユニットのかしめ方法の説明に供する図であり、図８および図９と対応する部分には同一の符号を付している。
【００２４】
図例の車両用ハブユニットＡ２は、ハブホイール１１と、等速ジョイント１２と、複列転がり軸受１３とを備える。
【００２５】
ハブホイール１１は、軸方向外端部に径方向外向きのフランジ１４を有する。このフランジ１４の円周数箇所にはボルト挿通孔１５が形成されている。各ボルト挿通孔１５それぞれにボルト１６が貫通状態で挿入される。ボルト１６を介してフランジ１４の片面に沿わせられた状態でディスクブレーキ装置のディスクロータ１７および車輪（図示省略）が取り付けられる。１８はブレーキパッドである。
【００２６】
複列転がり軸受１３は、二列の軌道溝を有する単一の外輪１９、二列で配設される転動体としての複数の玉２０、二つの冠形保持器２１、ハブホイール１１の外周面を一方内輪、等速ジョイント１２の外周面を他方内輪とする構成を有し、かしめ部２２から前記内輪が押し付けられていることにより、所要の予圧（圧縮応力）が付与され、かつ抜け止めされている。また、複列転がり軸受１３の外輪１９にフランジ２３が形成され、このフランジ２３は車体２４にボルト止めされている。
【００２７】
等速ジョイント１２は、周知のＣＶＪ（定速度ジョイント：Constant Velocity Joint）と呼ばれるもので外輪２５、円筒軸部２６、内輪２７、玉２８、保持器２９などを有し、この内輪２７に対してドライブシャフト３０の一端側がスプライン嵌合され止め輪３１などで抜け止め固定されている。ドライブシャフト３０の他端側は、別の等速ジョイントを介して車両のデファレンシャル装置に取り付けられる。
【００２８】
等速ジョイント１２の外輪２５外周面の軸部２６側に位置する端部に複列転がり軸受１３を軸方向から受け止める受け面２５ａが設けられている。等速ジョイント１２の外輪２５から連なる円筒軸部２６は、ハブホイール１１の内周面に対して軸方向に所定の長さにわたりスプライン嵌合されているとともに、その軸方向外端部は、ハブホイール１１の軸方向外端面に対して径方向外向きに屈曲されてかしめられたかしめ部２２とされ、これによってハブホイール１１に対し一体とされている。
【００２９】
上記構造により、ドライブシャフト３０の回転動力は、等速ジョイント１２を介してハブホイール１１に取り付けられてある車輪（図示省略）に対して伝達されるようになっている。
【００３０】
また、等速ジョイント１２の外輪２５と円筒軸部２６との間には等速ジョイント１２の内面を閉じて補強するための補強壁３２が設けられている。この補強壁３２は、複列転がり軸受１３の転動体２０の両列間に位置していて、等速ジョイント１２の円筒軸部２６を中空状態としたことによる強度低下を防止している。
【００３１】
実施形態の車両用ハブユニットＡ２は、等速ジョイント１２の外輪２５内周面において前記かしめ時のかしめ荷重の作用方向に対して軸方向で正対する領域に、かしめ時においてかしめ荷重を受けるためのかしめ受け治具４１があてがわれるあてがい面３３が形成されている。このあてがい面３３は、径方向に平坦とされている。
【００３２】
次に、図２を参照してかしめ作業について説明する。
【００３３】
このかしめ作業は、等速ジョイント１２の円筒軸部２６の軸方向外端部をかしめ用円筒部３４としてハブホイール１１の軸方向外端面に対して押し付けるよう径方向外向きに屈曲させてかしめつけてかしめ部２２とすることにより、複列転がり軸受１３の抜け止めと予圧付与とを行うようになっている。
【００３４】
そのため、まず、基台４０上にかしめ受け治具４１を乗せるとともに、このかしめ受け治具４１上に車両用ハブユニットＡ２を搭載する。この場合、かしめ受け治具４１はあてがい面３３の外形寸法と一致する搭載面を有し、また、車両用ハブユニットＡ２を搭載した状態で該車両用ハブユニットＡ２が基台４０上から浮くようになっている。
【００３５】
この搭載で、かしめ受け治具４１の搭載面のうち特にあてがい面３３と当接する搭載面４１ａがあてがい面３３にあてがわれた状態となる。この搭載面４１ａが、車両用ハブユニットＡ２の支持領域となる。
【００３６】
なお、かしめ受け治具４１は、かしめ荷重の作用方向に軸方向で正対する領域を有していれば、円柱形状、円筒形状あるいは円錐台形状その他の形状であってもよい。
【００３７】
そして、前記かしめ受け治具４１の搭載面４１ａ上に、車両用ハブユニットＡ２のあてがい面３３を載置した状態で、かしめ治具４２をかしめ力Ｐをかけつつ中心Ｏに対して所定のローリング角θでローリングさせると、かしめ用円筒部３４は径方向外向きに屈曲変形される。このとき、かしめ用円筒部３４に作用するかしめ荷重Ｐ２の作用方向は、それと軸方向で正対するあてがい面３３に向かう。この場合、このあてがい面３３は、かしめ受け治具４１の搭載面４１ａで支持されているので、この搭載面４１ａでの反力Ｐ２は前記かしめ荷重Ｐ１と軸方向でほぼ一致する結果、等速ジョイント１２には従来のようなかしめ時における偶力が発生しない。ここで、あてがい面３３は車両用ハブユニット支持領域となっており、かしめ荷重作用領域が車両用ハブユニット支持領域より径方向内側、外側のいずれにもずれて位置することがない。
【００３８】
なお、このかしめ時においては、等速ジョイント１２の外輪２５はかしめ受け治具４１により基台４０から浮かされた状態にあるから、従来のような反力がかからず、一層、その変形は防止される。
【００３９】
よって、実施形態のかしめ方法によると、等速ジョイント１２の外輪２５にはかしめに伴い、それを変形させようとする偶力が作用しなくなる。したがって、等速ジョイント１２の外輪２５の変形も発生しないから、等速ジョイント１２はその傾動動作が円滑となり好ましい。
【００４０】
本発明は、上述の実施形態に限定されるものではなく、種々な応用や変形が考えれる。
【００４１】
（１）図３ないし図６を参照して本発明の他の実施形態について説明する。
【００４２】
ここで、図３は、かしめ時におけるハブユニット要部の側面断面図である。
【００４３】
また、図４ないし図６は、本発明の他の実施形態にかかり、図４は、ハブユニットの縦断側面図、図５は、図４のスペーサの斜視図、図６は、かしめの説明に供する図４のハブユニットの縦断側面図である。
【００４４】
これらの図において、図１および図２と対応する部分には同一の符号を付している。
【００４５】
等速ジョイント１２の外輪２５における円筒軸部２６の軸方向外端に設けられた円筒部３４をハブホイール１１の軸方向外端面に径方向外向きに屈曲変形してかしめつけるとき、図３で示すように前記円筒軸部２６内面に対しこれを径方向内向きに変形させようとする荷重が作用し、その内面が仮想線で示すように変形してしまうおそれがある。このような変形は、前記円筒軸部２６の外周面とハブホイール１１の内周面とのスプライン嵌合状態が緩むなどして好ましくない。
【００４６】
そこで、この実施形態の場合、前記円筒部３４内面に荷重受け部材として図５で示される円盤状スペーサ４３を圧入あるいはかしめやスポット溶接などで固定しこのスペーサ４３で前記荷重を受けられるようにしている。
【００４７】
このようなスペーサ４３を前記円筒部３４の内面にあてがった状態で、図６で示すように、ハブホイール１１の軸方向外端面に対する前記円筒部３４のかしめつけを行うと、そのかしめ時に、前記円筒軸部２６に対してこれを径方向内向きに変形させようとする径方向内向きの荷重がかかってもスペーサ４３で前記荷重が受けられる結果、円筒軸部２６の内面の変形が抑制される。
【００４８】
その結果、等速ジョイント１２の円筒軸部２６の外周面とハブホイール１１の内周面との所要のスプライン嵌合状態が良好に維持される。
【００４９】
なお、スペーサ４３は、図４で示すように、そのまま固定するか、円筒軸部２６から取り外し可能としてもよい。
【００５０】
また、スペーサ４３は、必ずしも、円盤状である必要はなく、環状であってもよい。
【００５１】
また、環状や円盤状が等速ジョイント１２の円筒部３４の内周面全域に接触して固定できるので最も好ましいが、円筒部３４の内周面全域に接触させる必要は必ずしもなく、スペーサ４３の外周形状が角形形状、あるいは円形や角形が混在した形状とし、円筒部３４に対して複数箇所で接触する形態でも構わない。
【００５２】
（２）図７は、本発明のさらに他の実施形態にかかるハブユニットの縦断側面図である。図７において、図１と対応する部分には同一の符号を付している。
【００５３】
図４ないし図６の実施形態の場合、等速ジョイント１２の円筒軸部２６には、これを補強する補強壁３２があり、この補強壁３２は、等速ジョイント１２の円筒軸部２６を中空状態としたことによる強度低下を防止できる機能を備える。
【００５４】
さらに、この補強壁３２は、等速ジョイント１２の円筒部３４の自由端側開口を閉塞する蓋としても機能することにより内部に主として雨水や塵埃等の異物が侵入したり、等速ジョイント１２内の油が外部に漏れるのを防止するなど密封性を確保することができる。
【００５５】
そして、このようなハブユニットに対して、補強壁３２を省略し、その代わりに図７で示すようにスペーサ４３を、前記（１）と同様にかしめ時における円筒軸部２６の内面の変形を抑制する荷重受け部材として用いるとともに、等速ジョイント１２の円筒部３４の自由端側開口を閉塞する蓋としても使用することにより前記異物侵入防止や油の外部漏洩防止を図ってもよい。
【００５６】
なお、スペーサ４３の材料は、荷重受け部材として、亜鉛合金が好ましく、特に好ましいのはアルミ合金である。
【００５７】
また、スペーサ４３として熱伝導性に優れかつ或る程度強度のある非鉄材料、例えばアルミ合金や亜鉛合金を選定して放熱性をもたせてもよい。
【００５８】
【発明の効果】
本発明によれば、等速ジョイントの外輪において軸方向外端側の円筒部を径方向外向きに屈曲してハブホイールの軸方向外端面にかしめつけるに際し、等速ジョイントの外輪においてそのかしめ時のかしめ荷重の作用方向に対して軸方向で正対する領域に、かしめ時においてかしめ荷重を受けるためのかしめ受け治具があてがわれる面が設けられているので、等速ジョイントの外輪には前記かしめ作業による偶力が作用せずその変形が阻止されるから、等速ジョイントは従来とは異なりかしめによる外輪の変形による傾動動作の支障がなくなって好ましい。
【図面の簡単な説明】
【図１】本発明の一実施形態にかかるハブユニットの縦断側面図
【図２】かしめの説明に供する図１のハブユニットの縦断側面図
【図３】本発明の他の実施形態の説明に供するハブユニット要部の断面図
【図４】本発明の他の実施形態にかかるハブユニットの縦断側面図
【図５】図４のスペーサの斜視図
【図６】かしめの説明に供する図４のハブユニットの縦断側面図
【図７】本発明のさらに他の実施形態にかかるハブユニットの縦断側面図
【図８】従来例にかかるハブユニットの縦断側面図
【図９】かしめの説明に供する図８のハブユニットの縦断側面図
【符号の説明】
Ａ２ 車両用ハブユニット
１１ ハブホイール
１２ 等速ジョイント
１３ 複列転がり軸受
１４ フランジ
１７ ディスクロータ
２２ かしめ部
２６ 円筒軸部
３２ 補強壁
３３ あてがい面
３４ かしめ用円筒部
４３ スペーサ[0001]
BACKGROUND OF THE INVENTION
In the present invention, a double-row rolling bearing is disposed on the outer peripheral surface of the hub wheel, and a shaft portion continuous from the outer ring of the constant velocity joint is disposed on the inner peripheral surface of the hub wheel. The double row at the end located on the shaft side of the outer peripheral surface of the outer ring of the constant velocity joint with the disk rotor and wheels of the disk brake device being applied to the outer surface of the radially outward flange integrally formed with A cylinder provided with a receiving surface that receives the rolling bearing from the axial direction, and is bent radially outwardly toward the axial outer end side of the shaft portion of the constant velocity joint and caulked against the axial outer end surface of the hub wheel. The present invention relates to a vehicle hub unit provided with a portion.
[0002]
[Prior art]
A conventional hub unit used on the drive wheel side of a vehicle of this type will be described with reference to FIG. The vehicle hub unit A1 includes a hub wheel 11, a constant velocity joint 12, and a double row rolling bearing 13.
[0003]
The hub wheel 11 has a radially outward flange 14 at an outer end in the axial direction, and is attached with a disk rotor 17 and a wheel (not shown) applied to the outer surface of the flange 14.
[0004]
In the constant velocity joint 12, a cylindrical shaft portion 26 is provided on the outer ring 25, and an outer peripheral surface of the cylindrical shaft portion 26 is spline-fitted to an inner peripheral surface of the hub wheel 11, while an outer end in the axial direction of the cylindrical shaft portion 26. A caulking cylindrical portion 34 is formed, and the caulking cylindrical portion 34 is bent and deformed radially outward on the axially outer end surface of the hub wheel 11 to be a caulking portion 22, thereby being attached to the hub wheel 11. On the other hand.
[0005]
The double row rolling bearing 13 includes a single outer ring 19 having two rows of raceway grooves, a plurality of balls 20 arranged in two rows, an outer peripheral surface of the hub wheel 11 as one inner ring, and an outer peripheral surface of the constant velocity joint 12. The inner ring is configured as the other inner ring, and both the inner rings are pressed from the caulking portion 22 so that a required preload (compressive stress) is applied and is prevented from coming off.
[0006]
The caulking operation will be described with reference to FIG.
[0007]
First, the hub unit A1 is placed on the base 40, the caulking jig 42 is pushed downward with a required caulking force, and is rolled at a predetermined rolling angle θ with respect to the center O to be a caulking cylinder. The portion 34 is bent and deformed radially outward on the axially outer end surface of the hub wheel 11 to form a caulked portion 22.
[0008]
As a result, a preload is applied from the caulking portion 22 to the outer peripheral surfaces of the hub wheel 11 and the constant velocity joint 12 which are the inner rings of the double row rolling bearing 13 after caulking. The preload in this case acts as an axial force (axial load) on the ball 20 of the double row rolling bearing 13 from the inner ring, and the ball 20 is compressed between the outer ring 19 and the inner ring as the outer ring 19 and the inner ring are compressed. It becomes possible to roll properly. The axial force in this case reaches several tons.
[0009]
[Problems to be solved by the invention]
By the way, in the case of the structure of the conventional vehicle hub unit A1, the outer ring 25 of the constant velocity joint 12 may be distorted and deformed by the caulking. Such deformation distortion of the outer ring 25 is not preferable because there is a possibility that the tilting operation may be hindered. Therefore, the present applicant has intensively studied on the elimination of the distortion in the outer ring 25 of the constant velocity joint 12. As a result, the vehicle hub unit support region is located radially outward with respect to the direction of the caulking load P1. In this case, the vehicle hub unit support region is a contact portion 40 a of the base 40 with the outer ring 25 of the constant velocity joint 12.
[0010]
Since a reaction force P2 corresponding to the caulking load P1 is generated in this vehicle hub unit support region, a couple force is generated to deform the outer ring 25 of the constant velocity joint 12, thereby It was found that the outer ring 25 of the constant velocity joint 12 was distorted and deformed.
[0011]
Therefore, in the present invention, it is an object to be solved to make it possible to prevent deformation of the constant velocity joint during the caulking process in the vehicle hub unit.
[0012]
[Means for Solving the Problems]
(1) In the vehicle hub unit of the present invention, a double row rolling bearing is disposed on the outer peripheral surface of the hub wheel, and a shaft portion continuous from the outer ring of the constant velocity joint is disposed on the inner peripheral surface of the hub wheel, and In the state where the disk rotor and wheels of the disc brake device are applied to the outer surface of the radially outward flange formed integrally with the outer end of the hub wheel in the axial direction, the outer peripheral surface of the outer ring of the constant velocity joint is on the shaft side. A receiving surface for receiving the double-row rolling bearing from the axial direction is provided at an end portion that is positioned, and is bent radially outward at the axial outer end side at the axial portion of the constant velocity joint so as to be outside the axial direction of the hub wheel. A hub unit for a vehicle provided with a cylindrical portion that is caulked against an end face, and is axially correct with respect to an action direction of caulking load at the caulking load on the inner peripheral surface of the constant velocity joint. In the region, the crimping receiving surface jig is Ategawa for receiving a caulking load are provided at the time of caulking.
[0013]
According to the present invention, the outer ring of the constant velocity joint is provided with a surface to which a caulking receiving jig for receiving the caulking load at the time of caulking is applied in a region facing the axial direction of the caulking load at the time of caulking. As a result, the direction of the caulking load and the direction of the reaction force against the caulking load in the caulking receiving jig almost coincide with each other in the axial direction. As a result, the outer ring of the constant velocity joint does not generate the couple due to the caulking. As a result, the caulking prevents the outer ring of the constant velocity joint from being distorted, and the constant velocity joint can be smoothly tilted and is preferable.
[0014]
In the vehicle hub unit of the present invention, preferably, the double row rolling bearing includes a single outer ring having two rows of raceway grooves, a plurality of rolling elements arranged in two rows, and an outer periphery of the hub wheel. The surface has one inner ring and the outer peripheral surface of the outer ring of the constant velocity joint is the other inner ring, and the constant velocity joint reinforces the hollow inner surface at a position corresponding to the space between the two rows of rolling elements. It has a reinforcing wall.
[0015]
According to this embodiment, since the reinforcing wall is positioned between the rolling element rows of the double row rolling bearing, it is possible to effectively prevent a decrease in strength when the constant velocity joint is made hollow to reduce the weight, and to the outer ring of the bearing. Even if a static or dynamic load is applied from the vehicle body, it is preferable because deformation of the constant velocity joint can be prevented.
[0016]
In the vehicle hub unit according to the present invention, preferably, a load receiving member that receives a load to deform the outer ring radially inward during the caulking is provided on an inner surface of the cylindrical portion of the constant velocity joint. Yes.
[0017]
According to this embodiment, when the cylindrical portion is bent and deformed radially outward on the axially outer end surface of the hub wheel, the radially inward load acting on the outer ring is received by the load receiving member. Therefore, the spline fitting state between the outer peripheral surface of the outer ring of the constant velocity joint and the inner peripheral surface of the hub wheel can be favorably maintained, which is preferable.
[0018]
In the vehicle hub unit of the present invention, preferably, the load receiving member is formed in a lid shape that closes the free end side opening of the cylindrical portion and prevents foreign matter from entering the constant velocity joint.
[0019]
According to this embodiment, the lid-shaped load receiving member can prevent foreign matter from entering the constant velocity joint, which is preferable.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
The details of the present invention will be described based on embodiments shown in the drawings.
[0023]
1 and 2 show an embodiment of the present invention. FIG. 1 is a longitudinal side view of a vehicle hub unit, and FIG. 2 is a diagram for explaining a caulking method of the vehicle hub unit. Parts corresponding to those in FIGS. 8 and 9 are denoted by the same reference numerals. Yes.
[0024]
The illustrated vehicle hub unit A2 includes a hub wheel 11, a constant velocity joint 12, and a double row rolling bearing 13.
[0025]
The hub wheel 11 has a radially outward flange 14 at an axially outer end. Bolt insertion holes 15 are formed at several places around the flange 14. Bolts 16 are inserted into the respective bolt insertion holes 15 in a through state. A disc rotor 17 and a wheel (not shown) of the disc brake device are attached in a state of being along one side of the flange 14 via the bolt 16. Reference numeral 18 denotes a brake pad.
[0026]
The double row rolling bearing 13 includes a single outer ring 19 having two rows of raceway grooves, a plurality of balls 20 as rolling elements arranged in two rows, two crown-shaped cages 21, and an outer peripheral surface of the hub wheel 11. 1 is an inner ring, and the outer peripheral surface of the constant velocity joint 12 is the other inner ring, and the inner ring is pressed from the caulking portion 22, so that a required preload (compressive stress) is applied and the retaining is prevented. ing. A flange 23 is formed on the outer ring 19 of the double row rolling bearing 13, and the flange 23 is bolted to the vehicle body 24.
[0027]
The constant velocity joint 12 is called a well-known CVJ (Constant Velocity Joint) and includes an outer ring 25, a cylindrical shaft portion 26, an inner ring 27, a ball 28, a cage 29, and the like. One end of the drive shaft 30 is spline-fitted and fixed with a retaining ring 31 or the like. The other end side of the drive shaft 30 is attached to a vehicle differential device via another constant velocity joint.
[0028]
A receiving surface 25a for receiving the double row rolling bearing 13 from the axial direction is provided at an end portion of the outer ring 25 outer peripheral surface of the constant velocity joint 12 located on the shaft portion 26 side. The cylindrical shaft portion 26 that continues from the outer ring 25 of the constant velocity joint 12 is spline-fitted over a predetermined length in the axial direction with respect to the inner peripheral surface of the hub wheel 11, and the outer end portion in the axial direction is a hub. The caulking portion 22 is bent and caulked radially outward with respect to the outer end surface in the axial direction of the wheel 11, thereby being integrated with the hub wheel 11.
[0029]
With the above structure, the rotational power of the drive shaft 30 is transmitted to the wheel (not shown) attached to the hub wheel 11 via the constant velocity joint 12.
[0030]
A reinforcing wall 32 is provided between the outer ring 25 of the constant velocity joint 12 and the cylindrical shaft portion 26 to close and reinforce the inner surface of the constant velocity joint 12. The reinforcing wall 32 is located between both rows of the rolling elements 20 of the double row rolling bearing 13 and prevents the strength reduction caused by the hollow cylindrical shaft portion 26 of the constant velocity joint 12.
[0031]
The vehicle hub unit A2 of the embodiment is configured to receive a caulking load at the time of caulking in a region facing the axial direction of the caulking load at the inner peripheral surface of the outer ring 25 of the constant velocity joint 12 in the axial direction. A fitting surface 33 to which the caulking receiving jig 41 is applied is formed. The applying surface 33 is flat in the radial direction.
[0032]
Next, the caulking work will be described with reference to FIG.
[0033]
In this caulking operation, the axial outer end of the cylindrical shaft portion 26 of the constant velocity joint 12 is caulked by bending outward in the radial direction so as to press against the outer end surface of the hub wheel 11 in the axial direction. By using the caulking portion 22, the double row rolling bearing 13 is prevented from coming off and applied with a preload.
[0034]
Therefore, first, the caulking receiving jig 41 is placed on the base 40, and the vehicle hub unit A2 is mounted on the caulking receiving jig 41. In this case, the caulking receiving jig 41 has a mounting surface that matches the outer dimension of the mounting surface 33, and the vehicle hub unit A2 is floated from the base 40 in a state where the vehicle hub unit A2 is mounted. It has become.
[0035]
With this mounting, the mounting surface 41 a that comes in contact with the mounting surface 33 among the mounting surfaces of the caulking receiving jig 41 is in a state of being applied to the mounting surface 33. This mounting surface 41a becomes a support region of the vehicle hub unit A2.
[0036]
Note that the caulking receiving jig 41 may have a columnar shape, a cylindrical shape, a truncated cone shape, or any other shape as long as it has a region facing the direction of the caulking load in the axial direction.
[0037]
Then, in a state where the mounting surface 33 of the vehicle hub unit A2 is placed on the mounting surface 41a of the caulking receiving jig 41, a predetermined rolling is applied to the center O while applying the caulking force P to the caulking jig 42. When rolling is performed at the angle θ, the caulking cylindrical portion 34 is bent and deformed radially outward. At this time, the direction of action of the caulking load P2 acting on the caulking cylindrical portion 34 is directed to the fitting surface 33 that is directly opposed to the caulking load P2. In this case, since the fitting surface 33 is supported by the mounting surface 41a of the caulking receiving jig 41, the reaction force P2 on the mounting surface 41a substantially coincides with the caulking load P1 in the axial direction. The joint 12 does not generate a couple during caulking as in the prior art. Here, the fitting surface 33 serves as a vehicle hub unit support region, and the caulking load action region is not positioned so as to be shifted radially inward or outward from the vehicle hub unit support region.
[0038]
During caulking, the outer ring 25 of the constant velocity joint 12 is in a state of being floated from the base 40 by the caulking receiving jig 41, so that the conventional reaction force is not applied and further deformation is prevented. Is done.
[0039]
Therefore, according to the caulking method of the embodiment, the couple that tries to deform the outer ring 25 of the constant velocity joint 12 does not act upon caulking. Therefore, since the deformation of the outer ring 25 of the constant velocity joint 12 does not occur, the constant velocity joint 12 is preferable because its tilting operation is smooth.
[0040]
The present invention is not limited to the above-described embodiment, and various applications and modifications can be considered.
[0041]
(1) Another embodiment of the present invention will be described with reference to FIGS.
[0042]
Here, FIG. 3 is a side sectional view of the main part of the hub unit at the time of caulking.
[0043]
4 to 6 relate to another embodiment of the present invention, FIG. 4 is a longitudinal side view of the hub unit, FIG. 5 is a perspective view of the spacer of FIG. 4, and FIG. 6 is an illustration of caulking. It is a vertical side view of the hub unit of FIG.
[0044]
In these drawings, portions corresponding to those in FIGS. 1 and 2 are denoted by the same reference numerals.
[0045]
When the cylindrical portion 34 provided at the axial outer end of the cylindrical shaft portion 26 in the outer ring 25 of the constant velocity joint 12 is bent and deformed radially outward on the axial outer end surface of the hub wheel 11 in FIG. As shown in the figure, a load is applied to the inner surface of the cylindrical shaft portion 26 so as to be deformed radially inward, and the inner surface may be deformed as indicated by a virtual line. Such deformation is not preferable because the spline fitting state between the outer peripheral surface of the cylindrical shaft portion 26 and the inner peripheral surface of the hub wheel 11 is loosened.
[0046]
Therefore, in the case of this embodiment, a disk-like spacer 43 shown in FIG. 5 is fixed to the inner surface of the cylindrical portion 34 by press-fitting, caulking, spot welding or the like so that the load can be received by the spacer 43. Yes.
[0047]
When such a spacer 43 is applied to the inner surface of the cylindrical portion 34 and the cylindrical portion 34 is caulked against the outer end surface in the axial direction of the hub wheel 11 as shown in FIG. Even when a radially inward load is applied to the shaft portion 26 in a radially inward direction, the load is received by the spacer 43. As a result, deformation of the inner surface of the cylindrical shaft portion 26 is suppressed. .
[0048]
As a result, the required spline fitting state between the outer peripheral surface of the cylindrical shaft portion 26 of the constant velocity joint 12 and the inner peripheral surface of the hub wheel 11 is well maintained.
[0049]
The spacer 43 may be fixed as it is or may be removable from the cylindrical shaft portion 26 as shown in FIG.
[0050]
Moreover, the spacer 43 does not necessarily need to be disk-shaped and may be annular.
[0051]
Although most preferably the annular or disc-shaped may be affixed in contact with the inner peripheral surface throughout the cylindrical portion 34 of the constant velocity joint 12, not always necessary to contact the inner circumferential surface entire of the cylindrical portion 34, the spacer 43 The outer peripheral shape may be a square shape, or a shape in which a circle or a square is mixed, and the cylindrical portion 34 may be contacted at a plurality of locations.
[0052]
(2) FIG. 7 is a longitudinal side view of a hub unit according to still another embodiment of the present invention. In FIG. 7, parts corresponding to those in FIG.
[0053]
4 to 6, the cylindrical shaft portion 26 of the constant velocity joint 12 has a reinforcing wall 32 that reinforces the cylindrical shaft portion 26, and the reinforcing wall 32 hollows the cylindrical shaft portion 26 of the constant velocity joint 12. It has a function that can prevent a decrease in strength due to the state.
[0054]
Further, the reinforcing wall 32 also functions as a lid for closing the opening on the free end side of the cylindrical portion 34 of the constant velocity joint 12, so that foreign matters such as rain water and dust enter inside, or the constant velocity joint 12 The sealing performance can be ensured by preventing the oil from leaking to the outside.
[0055]
For such a hub unit, the reinforcing wall 32 is omitted, and instead, as shown in FIG. 7, the spacer 43 is deformed on the inner surface of the cylindrical shaft portion 26 during caulking as in the case (1). In addition to being used as a load receiving member to be suppressed, it may also be used as a lid for closing the free end side opening of the cylindrical portion 34 of the constant velocity joint 12, thereby preventing the entry of foreign matter and the prevention of external leakage of oil.
[0056]
The material of the spacer 43 is preferably a zinc alloy as the load receiving member, and particularly preferably an aluminum alloy.
[0057]
Further, as the spacer 43 , a non-ferrous material having excellent thermal conductivity and a certain degree of strength, for example, an aluminum alloy or a zinc alloy may be selected to provide heat dissipation.
[0058]
【The invention's effect】
According to the present invention, when the cylindrical portion on the axial outer end side of the outer ring of the constant velocity joint is bent radially outward and caulked to the axial outer end surface of the hub wheel, the outer ring of the constant velocity joint is caulked at the outer ring. Since a surface to which a caulking receiving jig for receiving the caulking load is applied at the time of caulking is provided in a region facing the direction of the caulking load in the axial direction, the outer ring of the constant velocity joint is provided on the outer ring. Since the couple force due to the caulking work does not act and the deformation thereof is prevented, the constant velocity joint is preferable because it does not hinder the tilting operation due to the deformation of the outer ring due to the caulking unlike the conventional art.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of a hub unit according to an embodiment of the present invention. FIG. 2 is a longitudinal side view of the hub unit of FIG. 1 for explaining caulking. FIG. 4 is a sectional side view of a hub unit according to another embodiment of the present invention. FIG. 5 is a perspective view of the spacer of FIG. 4. FIG. 6 is used for explaining caulking. Fig. 7 is a longitudinal side view of a hub unit according to still another embodiment of the present invention. Fig. 8 is a longitudinal side view of a hub unit according to a conventional example. Fig. 9 is a diagram for explaining caulking. Sectional side view of hub unit 8 [Explanation of symbols]
A2 Vehicle Hub Unit 11 Hub Wheel 12 Constant Velocity Joint 13 Double Row Rolling Bearing 14 Flange 17 Disc Rotor 22 Caulking Portion 26 Cylindrical Shaft 32 Reinforcing Wall 33 Attaching Surface 34 Caulking Cylindrical Portion
43 spacer

Claims (3)

ハブホイールの外周面に複列転がり軸受が、また、ハブホイールの内周面に等速ジョイントの外輪から連なる軸部がそれぞれ配設され、かつ、ハブホイールの軸方向外端部に径方向外向きのフランジが一体形成され、前記等速ジョイントの外輪外周面の軸部側に位置する端部に前記複列転がり軸受を軸方向から受ける受け面が設けられ、前記等速ジョイントの軸部において軸方向外端側に径方向外向きに屈曲されて前記ハブホイールの軸方向外端面に対してかしめつけられるかしめ部を有する円筒部が設けられる車両用ハブユニットであって、
前記等速ジョイントの外輪内周面において前記かしめ時のかしめ荷重の作用方向に対して軸方向で正対する領域に、かしめ時においてかしめ荷重を受けるためのかしめ受け治具があてがわれる面が設けられており、
前記等速ジョイントの軸部における前記円筒部の内面に、前記かしめ時において前記等速ジョイントの軸部を径方向内向きに変形させようとする荷重を受ける荷重受け部材が設けられている、ことを特徴とする車両用ハブユニット。Double row rolling bearing on the outer peripheral surface of the hub wheel, also, the shaft portion continuous from the outer ring of the constant velocity joint are respectively disposed on the inner peripheral surface of the hub wheel, and a radially outer axially outer end portion of the hub wheel An orientation flange is integrally formed, and a receiving surface for receiving the double row rolling bearing from the axial direction is provided at an end portion of the outer ring outer peripheral surface of the constant velocity joint which is positioned on the shaft portion side. A vehicle hub unit provided with a cylindrical portion having a caulking portion that is bent radially outward at an axial outer end side and caulked against an axial outer end surface of the hub wheel,
On the inner peripheral surface of the outer ring of the constant velocity joint, a surface to which a caulking receiving jig for receiving the caulking load at the time of caulking is provided in a region directly facing in the axial direction with respect to the direction of caulking load at the time of caulking. It is and,
A load receiving member is provided on the inner surface of the cylindrical portion of the shaft portion of the constant velocity joint to receive a load that attempts to deform the shaft portion of the constant velocity joint radially inward during the caulking. A vehicle hub unit characterized by 請求項１の車両用ハブユニットにおいて、
前記荷重受け部材が、前記等速ジョイントの軸部における前記円筒部の自由端側開口を閉塞して等速ジョイント内部への異物の侵入を防止する蓋形状に形成されている、ことを特徴とする車両用ハブユニット。The vehicle hub unit according to claim 1 , wherein
The load receiving member is formed in a lid shape that closes a free end side opening of the cylindrical portion in the shaft portion of the constant velocity joint and prevents foreign matter from entering the constant velocity joint. Hub unit for vehicles to be used. 請求項１または２の車両用ハブユニットにおいて、
前記複列転がり軸受が、二列の軌道溝を有する単一の外輪と、二列で配設される複数の転動体と、前記ハブホイールの外周面を一方内輪、前記等速ジョイントの外輪の外周面を他方内輪とする構成を有し、
前記等速ジョイントが、前記二列の転動体間に対応する箇所でその中空内面を補強するための補強壁を備えている、ことを特徴とする車両用ハブユニット。The vehicle hub unit according to claim 1 or 2 ,
The double row rolling bearing includes a single outer ring having two rows of raceway grooves, a plurality of rolling elements arranged in two rows, an outer peripheral surface of the hub wheel as one inner ring, and an outer ring of the constant velocity joint. Having an outer peripheral surface as the other inner ring,
The vehicle hub unit, wherein the constant velocity joint includes a reinforcing wall for reinforcing a hollow inner surface at a portion corresponding to the two rows of rolling elements.
JP2000359576A 2000-02-28 2000-11-27 Hub unit for vehicles Expired - Fee Related JP3979001B2 (en)

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JP2008284919A (en) * 2007-05-15 2008-11-27 Ntn Corp Bearing device for wheel, method of assembling bearing device for wheel, assembly body, and method of assembling assembly body
JP4894652B2 (en) * 2007-06-25 2012-03-14 日本精工株式会社 Manufacturing method of wheel bearing rolling bearing unit
EP2105322B1 (en) 2008-03-28 2012-01-18 JTEKT Corporation Wheel bearing assembly, manufacturing method therefor, and calk jig
CN114001098B (en) * 2021-11-04 2023-12-08 浙江翎天科技有限公司 Hub bearing production process

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NL140620B (en) * 1968-04-10 1973-12-17 Skf Svenska Kullagerfab Ab AXLE CONSTRUCTION FOR A NON-DRIVEN WHEEL OF A MOTOR VEHICLE.
DE3126192A1 (en) * 1981-07-03 1983-01-20 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt BEARING UNIT FOR THE POWERED WHEEL OF A MOTOR VEHICLE
DE3239121C2 (en) * 1982-10-22 1984-08-09 Uni-Cardan Ag, 5200 Siegburg Bearing arrangement of a wheel hub that can be driven via a constant velocity swivel joint
DE3636243A1 (en) * 1986-10-24 1988-05-11 Loehr & Bromkamp Gmbh WHEEL BEARING (NY) SMOOTH JOINT UNIT
JP3622458B2 (en) * 1997-08-28 2005-02-23 日本精工株式会社 Rolling bearing unit for wheel support
JP3849240B2 (en) * 1997-05-09 2006-11-22 日本精工株式会社 Rolling bearing unit for wheels
JP3651196B2 (en) * 1997-08-13 2005-05-25 日本精工株式会社 Rolling bearing unit for wheels
JP3930675B2 (en) * 2000-02-17 2007-06-13 Ｎｔｎ株式会社 Wheel bearing device and bearing clearance management method thereof

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