JP2007192342A - Bearing unit for vehicle - Google Patents

Bearing unit for vehicle Download PDF

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Publication number
JP2007192342A
JP2007192342A JP2006012112A JP2006012112A JP2007192342A JP 2007192342 A JP2007192342 A JP 2007192342A JP 2006012112 A JP2006012112 A JP 2006012112A JP 2006012112 A JP2006012112 A JP 2006012112A JP 2007192342 A JP2007192342 A JP 2007192342A
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Prior art keywords
inner shaft
ring member
rolling element
inner ring
shaft
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JP2006012112A
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Japanese (ja)
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Kazuhisa Toda
一寿 戸田
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JTEKT Corp
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JTEKT Corp
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Priority to JP2006012112A priority Critical patent/JP2007192342A/en
Publication of JP2007192342A publication Critical patent/JP2007192342A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/49—Bearings with both balls and rollers
    • F16C19/492—Bearings with both balls and rollers with two or more rows with angular contact
    • F16C19/495—Bearings with both balls and rollers with two or more rows with angular contact with two rows
    • F16C19/497—Bearings with both balls and rollers with two or more rows with angular contact with two rows in O-arrangement
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bearing unit for a vehicle which can reduce production cost and bears a large load capacity to an acting load. <P>SOLUTION: The bearing unit is equipped with an inner shaft 1, an outer ring 2 to sheathe the inner shaft 1, and a first rolling body 3 on the inner side and a second rolling body 4 on the outer side which are provided in two rows between the inner shaft 1 and the outer ring 2. Furthermore, the unit is equipped with an inner ring member 5 having an inner ring raceway for the first rolling body 3 which is provided so as to sheathe the inner side of the inner shaft 1; and a caulking part 6 which is formed by enlarging the outer circumference side of the end 1a at the inner side of the inner shaft 1, and fixes the inner ring member 5 to the inner shaft 1 not to pop out. The unit is composed of a ball which is provided so that the first rolling body 3 on the inner side contacts angularly to the inner ring member 5 and the outer ring 2, and the second rolling body 4 on the outer side is composed of a tapered roller. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、車輌用軸受装置に関する。   The present invention relates to a vehicle bearing device.

車輌用の軸受装置として知られるものに、例えば特許文献１のように、内軸と、内軸に外嵌するよう設けられた外輪と、内軸と外輪との間に２列に設けられた第１と第２の転動体とを有するものがある。そして、内軸のインナ側（内側）に第１の転動体用の軌道面を有する内輪部材が外嵌され、内軸の中間部外周面に第２の転動体用の軌道面が形成され、内軸のアウタ側（外側）端部に車輪側部材を取り付けるためのフランジ部が設けられている。インナ側となる第１の転動体は複数個の円錐ころによって構成されている。この第１の転動体用の軌道面を有する前記内輪部材はその軌道面が軸心に対して傾斜する傾斜周面とされ、さらに、作用する軸方向荷重を受けるために周状の鍔部を有している。また、この内輪部材は、内軸の外周面に設けた凹周溝に嵌め込まれた止め輪部材により、内軸に抜け止め固定されている。   What is known as a bearing device for a vehicle is, for example, as in Patent Document 1, provided in two rows between an inner shaft, an outer ring provided so as to be fitted on the inner shaft, and the inner shaft and the outer ring. Some have first and second rolling elements. Then, an inner ring member having a raceway surface for the first rolling element is fitted on the inner side (inner side) of the inner shaft, and a raceway surface for the second rolling element is formed on the outer peripheral surface of the intermediate portion of the inner shaft, A flange portion for attaching the wheel side member to the outer side (outer side) end portion of the inner shaft is provided. The first rolling element on the inner side is composed of a plurality of tapered rollers. The inner ring member having the raceway surface for the first rolling element has an inclined circumferential surface whose raceway surface is inclined with respect to the axial center, and further has a circumferential flange portion for receiving the acting axial load. Have. The inner ring member is secured to the inner shaft by a retaining ring member fitted in a concave circumferential groove provided on the outer peripheral surface of the inner shaft.

特開平１１−９１３０８号公報（図１）JP-A-11-91308 (FIG. 1)

特許文献１に記載の軸受装置は、内輪部材を固定させるために別部材である止め輪部材を用いており、さらに、この止め輪部材の脱落を防止するための部材が設けられ、部品点数が多く、組み立てが煩雑となり、生産コストを高める原因となっている。また、従来において、図２の内輪部材５２部分を示す断面図に示すように、内軸５１の端部の外周側を径外方に広げてかしめ部５５が形成され、このかしめ部５５により内輪部材５２を抜け止め固定している構成が知られている。しかし、特許文献１に記載の軸受装置に、このかしめ部５５を適用すると、かしめ加工の際の荷重により内軸５１に外嵌させた内輪部材５２が変形し、図２の２点鎖線により示すように、内輪部材５２の軌道面５３の傾斜角度、及び、鍔部５４の鍔角度が変化してしまうという問題点を有する。軌道面５３の傾斜角度が変化すると、円錐ころとの接触状態が変化し適切な線接触が得られない。また、鍔角度が変化すると、鍔部５４が円錐ころの端面と面において接触することができず、円錐ころの端面に対して滑らせながら荷重を受けることができなくなるおそれがある。
そのために、内輪部材５２を、かしめ後に所定の形状、角度となるように予め変形量を見込んだ初期形状とすることで対応することが考えられる。しかし、この作業は非常に難しく、生産コストが高くなると共に製品寸法にばらつきを生じさせるおそれがある。 The bearing device described in Patent Document 1 uses a retaining ring member that is a separate member for fixing the inner ring member, and further includes a member for preventing the retaining ring member from falling off. In many cases, the assembly becomes complicated, which increases the production cost. Further, as shown in the sectional view of the inner ring member 52 in FIG. 2, conventionally, the outer peripheral side of the end portion of the inner shaft 51 is widened outwardly to form a caulking portion 55, and the caulking portion 55 forms the inner ring. A configuration is known in which the member 52 is secured and secured. However, when this caulking portion 55 is applied to the bearing device described in Patent Document 1, the inner ring member 52 that is externally fitted to the inner shaft 51 is deformed by a load during caulking, and is indicated by a two-dot chain line in FIG. As described above, there is a problem that the inclination angle of the raceway surface 53 of the inner ring member 52 and the heel angle of the heel portion 54 change. When the inclination angle of the raceway surface 53 changes, the contact state with the tapered rollers changes and an appropriate line contact cannot be obtained. Further, if the flange angle changes, the flange portion 54 cannot come into contact with the end surface of the tapered roller at the surface, and it may not be possible to receive a load while sliding against the end surface of the tapered roller.
For this purpose, it is conceivable that the inner ring member 52 has an initial shape with a predetermined deformation amount so as to have a predetermined shape and angle after caulking. However, this operation is very difficult, which increases production costs and may cause variations in product dimensions.

この発明は前記問題点に鑑みてなされたものであり、生産コストの低減が可能であり、かつ、作用する荷重に対する負荷容量が大きく、剛性の高い軸受装置を提供することを目的とする。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a bearing device that can reduce the production cost, has a large load capacity with respect to an applied load, and has high rigidity.

前記目的を達成するためのこの発明の軸受装置は、内軸と、この内軸に外嵌するよう設けられた外輪と、前記内軸と前記外輪との間において２列に設けられたインナ側の第１転動体及びアウタ側の第２転動体と、前記内軸のインナ側に外嵌するよう設けられ前記第１転動体用の内輪軌道を有する内輪部材と、前記内軸のインナ側端部の外周側が径外方へ広げられて形成され前記内輪部材を前記内軸に抜け止め固定しているかしめ部とを備えた車輌用軸受装置において、インナ側の前記第１転動体が前記内軸に外嵌させた前記内輪部材と前記外輪とに対してアンギュラコンタクトとなるように設けられた玉によって構成され、アウタ側の前記第２転動体が円錐ころによって構成されていることを特徴としている。   In order to achieve the above object, a bearing device according to the present invention includes an inner shaft, an outer ring provided so as to be fitted on the inner shaft, and an inner side provided in two rows between the inner shaft and the outer ring. A first rolling element and an outer side second rolling element, an inner ring member having an inner ring raceway for the first rolling element provided to be fitted on the inner side of the inner shaft, and an inner side end of the inner shaft And a caulking portion formed so that the inner ring member is secured to the inner shaft and fixed to the inner shaft. It is constituted by a ball provided so as to be in angular contact with the inner ring member and the outer ring which are externally fitted to a shaft, and the second rolling element on the outer side is constituted by a tapered roller. Yes.

このような構成の軸受装置によれば、インナ側であってかしめ部側となる第１転動体が、内軸側の内輪部材と外輪に対してアンギュラコンタクトとなるよう設けられた玉によって構成されているため、かしめ部を形成する際の荷重により生ずる内輪部材の軌道面の変形を許容することができる。つまり、仮にかしめ加工により内輪部材の断面円弧形状の軌道面の向きが僅かに変化しても、転動体である玉と、内輪部材及び外輪との間において、適切な接触状態を維持させることができる。これにより、ラジアル方向の荷重に対する負荷容量と軸心方向の荷重に対する負荷容量を損なわせることがない。即ち、かしめ部側の転動体が従来のように円錐ころ軸受である場合は、内輪部材の軌道面の傾斜角度がたとえ僅かでも変化してしまうと、円錐ころと線接触することができなくなり所望の荷重を受けることができず、また、内輪部材の鍔部の角度が僅かでも変化してしまうと、鍔部の接触面が円錐ころの端面に対して滑らせながら荷重を受けることができなくなるというトラブルが発生する。しかし、本発明はこれらトラブルが生じることがない。
また、アウタ側であるフランジ部側の第２転動体が円錐ころとされているため、ラジアル方向及び軸心方向の荷重を受けることができ、さらに、負荷容量を大きくすることができる。従って、軸受装置全体としての剛性を高めることができる。 According to the bearing device having such a configuration, the first rolling element on the inner side and on the caulking portion side is configured by a ball provided so as to be in angular contact with the inner ring member and the outer ring on the inner shaft side. Therefore, it is possible to allow deformation of the raceway surface of the inner ring member caused by a load when forming the caulking portion. That is, even if the direction of the raceway surface of the arc-shaped cross section of the inner ring member slightly changes due to caulking, it is possible to maintain an appropriate contact state between the balls that are rolling elements and the inner ring member and the outer ring. it can. Thereby, the load capacity with respect to the load in the radial direction and the load capacity with respect to the load in the axial direction are not impaired. That is, when the rolling element on the caulking portion side is a tapered roller bearing as in the prior art, even if the inclination angle of the raceway surface of the inner ring member changes even slightly, it becomes impossible to make a line contact with the tapered roller. If the angle of the collar portion of the inner ring member changes even slightly, the contact surface of the collar portion cannot slide while sliding against the end surface of the tapered roller. Trouble that occurs. However, the present invention does not cause these troubles.
Moreover, since the 2nd rolling element by the side of the flange part which is an outer side is made into the tapered roller, it can receive the load of a radial direction and an axial direction, and can enlarge load capacity further. Accordingly, the rigidity of the entire bearing device can be increased.

さらに、内軸のインナ側端部がかしめ加工されて内輪部材が内軸に外嵌して固定されるため、別部材である止め輪部材を不要とし部品点数の削減が可能で、かつ、製造が簡単となり、生産コストの低減が可能となる。
また、軸受装置を車輌に取り付けた際に、アンギュラ玉軸受が構成される側がインナ側（内側）であり、円錐ころ軸受が構成される側がアウタ側（外側）となる。そして、車輌用の軸受装置において、例えば車輌の旋廻の際はアウタ側がインナ側よりも作用する荷重が大きくなる。そこで、本発明の軸受装置は、アウタ側に負荷容量の大きい円錐ころ軸受が構成されており、インナ側に円錐ころ軸受よりも負荷容量の小さいアンギュラ玉軸受が構成されており、これにより、負荷容量のバランスが良い軸受装置とすることができる。 Furthermore, the inner side end of the inner shaft is caulked and the inner ring member is externally fitted and fixed to the inner shaft, eliminating the need for a separate retaining ring member and reducing the number of parts. Can be simplified and the production cost can be reduced.
Further, when the bearing device is attached to the vehicle, the side on which the angular ball bearing is configured is the inner side (inside), and the side on which the tapered roller bearing is configured is the outer side (outside). In the bearing device for a vehicle, for example, when the vehicle is turned, a load acting on the outer side becomes larger than that on the inner side. Therefore, in the bearing device of the present invention, a tapered roller bearing having a large load capacity is configured on the outer side, and an angular ball bearing having a smaller load capacity than the tapered roller bearing is configured on the inner side. A bearing device with a good balance of capacity can be obtained.

本発明の車輪用軸受装置によれば、内軸のインナ側端部のかしめ加工により内輪部材が固定されるため、製作が簡単となり、生産コストの低減が可能である。アンギュラ玉軸受を構成させることにより、かしめ加工による軌道面の変形を許容できるため、軸受部における負荷能力を低下させることがない。また、円錐ころ軸受を有することにより、軸受装置に作用する荷重に対する負荷容量を大きくさせることができる。 According to the wheel bearing device of the present invention, since the inner ring member is fixed by caulking of the inner side end portion of the inner shaft, the manufacture is simplified and the production cost can be reduced. By configuring the angular ball bearing, deformation of the raceway surface due to caulking can be allowed, so that the load capacity in the bearing portion is not reduced. Moreover, by having a tapered roller bearing, the load capacity with respect to the load which acts on a bearing apparatus can be enlarged.

以下、この発明の実施の形態について添付図面を参照しながら詳述する。
図１はこの発明の実施の一形態に係る軸受装置を示す縦断面図である。この軸受装置は自動車における車輪用の軸受装置として用いることができ、軸受装置は、内軸１と、この内軸１に外嵌するよう設けられた外輪２と、内軸１と外輪２との間において２列に設けられたインナ側の第１転動体３及びアウタ側の第２転動体４とを備えている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a longitudinal sectional view showing a bearing device according to an embodiment of the present invention. This bearing device can be used as a bearing device for a wheel in an automobile. The bearing device includes an inner shaft 1, an outer ring 2 provided so as to be fitted on the inner shaft 1, and an inner shaft 1 and an outer ring 2. The inner side first rolling elements 3 and the outer side second rolling elements 4 provided in two rows are provided.

さらに、この軸受装置は、内輪部材５と、内輪部材５を内軸１に抜け止め固定させるかしめ部６とを備えている。内輪部材５は、その外周面に第１転動体３用の内輪軌道が形成されており、かしめ部６は、内軸１のインナ側端部１ａの外周側部が径外方へ広げられるよう塑性変形されて形成されている。
内軸１は、インナ側端部１ａに前記かしめ部６が形成されており、アウタ側端部１ｂに車輪側部材を取り付けるための径外方のフランジ部７を有している。なお、車輪側部材としては図示しないが車輪のホイール、ディスクブレーキ装置のブレーキロータがある。 Further, the bearing device includes an inner ring member 5 and a caulking portion 6 that prevents the inner ring member 5 from being fixed to the inner shaft 1. The inner ring member 5 has an inner ring raceway for the first rolling element 3 formed on the outer circumferential surface thereof, and the caulking portion 6 is configured such that the outer circumferential side portion of the inner side end 1a of the inner shaft 1 is expanded radially outward. It is formed by plastic deformation.
The inner shaft 1 has the caulking portion 6 formed at the inner side end portion 1a, and has a radially outer flange portion 7 for attaching a wheel side member to the outer side end portion 1b. Although not shown, the wheel side member includes a wheel of a wheel and a brake rotor of a disc brake device.

内軸１は、インナ側の小径部８と、軸心方向中間部において小径部８より直径が大きくなるよう形成された中径部９と、アウタ側において中径部９よりも直径が大きくなるよう形成された大径部１３とを有しており、内軸１は段付き形状とされている。さらに、小径部８と中径部９との間には軸心に直交方向となる径方向外方の段付き面部１０を有している。そして、この小径部８に内輪部材５が外嵌されている。内輪部材５は断付き面部１０とかしめ部６とにより軸心方向両側から挟まれており、かしめ部６は内輪部材５の側端面を押さえ付けている。また、大径部１３とフランジ部７の基部とは外輪２の内周端部に設けられたシール部材１４のシール面とされている。
外輪２は内軸１と同軸上に設けられており、内周面に２列の外輪軌道面を有する筒部１１と、車体側部材と接続される径外方のフランジ部１２とを有する。このフランジ部１２は筒部１１の外周面に設けられている。 The inner shaft 1 has a smaller diameter portion 8 on the inner side, a middle diameter portion 9 formed to have a larger diameter than the smaller diameter portion 8 in the middle portion in the axial center direction, and a larger diameter than the middle diameter portion 9 on the outer side. The inner shaft 1 has a stepped shape. Further, between the small diameter portion 8 and the medium diameter portion 9, there is a radially outward stepped surface portion 10 that is orthogonal to the axis. The inner ring member 5 is externally fitted to the small diameter portion 8. The inner ring member 5 is sandwiched between the cut surface portion 10 and the caulking portion 6 from both sides in the axial direction, and the caulking portion 6 presses the side end surface of the inner ring member 5. Further, the large-diameter portion 13 and the base portion of the flange portion 7 serve as a sealing surface of a sealing member 14 provided at the inner peripheral end portion of the outer ring 2.
The outer ring 2 is provided coaxially with the inner shaft 1 and has a cylindrical portion 11 having two rows of outer ring raceway surfaces on the inner peripheral surface, and a radially outer flange portion 12 connected to the vehicle body side member. The flange portion 12 is provided on the outer peripheral surface of the cylindrical portion 11.

かしめ部６側であるインナ側の第１転動体３は内軸１に外嵌させた内輪部材５と外輪２とに対してアンギュラコンタクトとなるように設けられた玉によって構成されており、さらに、フランジ部７側であるアウタ側の第２転動体４が円錐ころによって構成されている。従って、内輪部材５は玉によって構成される第１転動体３用の内輪軌道面を有し、この軌道面は断面円弧形状とされ、軌道面の曲率半径は玉の半径よりも大きく設定されている。また、外輪２の筒部１１の内周面に形成される第１転動体３用の外輪軌道面は断面円弧形状とされており、この軌道面の曲率半径は玉の半径よりも大きく設定されている。そして、玉と内輪部材５の軌道面との接触点と、玉と外輪２の軌道面との接触点とを結ぶ直線が、軸心に直交する方向であるラジアル方向に対して所定の角度を持つよう構成されており、インナ側である第１転動体３側においてアンギュラ玉軸受を構成している。   The inner-side first rolling element 3 that is the caulking portion 6 side is constituted by a ball provided so as to be in angular contact with the inner ring member 5 and the outer ring 2 that are externally fitted to the inner shaft 1, and The second rolling element 4 on the outer side which is the flange portion 7 side is constituted by a tapered roller. Therefore, the inner ring member 5 has an inner ring raceway surface for the first rolling element 3 constituted by balls, the raceway surface has a circular arc shape, and the curvature radius of the raceway surface is set larger than the radius of the ball. Yes. The outer ring raceway surface for the first rolling element 3 formed on the inner peripheral surface of the cylindrical portion 11 of the outer ring 2 has a circular arc shape in cross section, and the radius of curvature of this raceway surface is set larger than the radius of the ball. ing. The straight line connecting the contact point between the ball and the raceway surface of the inner ring member 5 and the contact point between the ball and the raceway surface of the outer ring 2 forms a predetermined angle with respect to the radial direction that is perpendicular to the axis. The angular ball bearing is comprised in the 1st rolling element 3 side which is an inner side.

そして、内軸１の中径部９に円錐ころによって構成される第２転動体４用の内輪軌道面が形成されている。この内輪軌道面は中径部９に凹周溝として形成されており、円錐ころの周面と接触する軌道面は内軸１のアウタ側に向かって拡径するテーパ周面とされている。そして、外輪２の筒部１１の内周面に、第２転動体４用の外輪軌道面が形成されており、アウタ側である第２転動体４側において円錐ころ軸受を構成している。   And the inner ring raceway surface for the 2nd rolling elements 4 comprised by the tapered roller is formed in the intermediate diameter part 9 of the inner shaft 1. FIG. The inner ring raceway surface is formed as a concave circumferential groove in the medium diameter portion 9, and the raceway surface that contacts the circumferential surface of the tapered roller is a tapered circumferential surface that increases in diameter toward the outer side of the inner shaft 1. And the outer ring raceway surface for the 2nd rolling elements 4 is formed in the inner peripheral surface of the cylinder part 11 of the outer ring | wheel 2, and the tapered roller bearing is comprised in the 2nd rolling element 4 side which is an outer side.

外輪２と内輪部材５とにアンギュラ接触する複数個の玉からなる第１転動体３と、複数個の円錐ころからなる第２転動体４とにより２列の軸受装置が構成されており、軸心方向の両方側からの荷重を受けることができるよう、これらが軸心方向に沿って互いに対向する配置とされている。また、車輌が旋廻する際、旋廻方向の反対側の車軸に（つまり、右旋回の場合は車輌の左側に）より大きなラジアル荷重と軸方向荷重が作用する。そこで、本発明の２列の軸受部を有する軸受装置は、インナ側となる軸受部が玉によって構成される第１転動体１を有しており、アウタ側となる軸受部が円錐ころによって構成される第２転動体４を有しており、アウタ側の軸受部がインナ側の軸受部よりも負荷容量を大きくさせている。これにより、負荷容量のバランスの良い軸受装置を得ることができる。   The first rolling element 3 made up of a plurality of balls that make angular contact with the outer ring 2 and the inner ring member 5 and the second rolling element 4 made up of a plurality of tapered rollers constitute a two-row bearing device. These are arranged so as to face each other along the axial direction so as to receive loads from both sides in the central direction. Further, when the vehicle turns, a larger radial load and axial load act on the axle opposite to the turning direction (that is, on the left side of the vehicle when turning right). Therefore, the bearing device having two rows of bearing portions according to the present invention has the first rolling element 1 in which the bearing portion on the inner side is constituted by balls, and the bearing portion on the outer side is constituted by tapered rollers. The outer rolling element 4 has a larger load capacity than the inner bearing part. Thereby, a bearing device with a good balance of load capacity can be obtained.

また、本発明の車輪用軸受装置は、図示する形態に限らずこの発明の範囲内において他の形態のものであっても良く、上記実施の形態は、内軸１が外輪２に対して回転自在とされている従動輪用の軸受装置としているが、本発明は、図示省略するが駆動輪用の軸受装置としても適用することができる。
また、上記実施の形態はアウタ側の内輪軌道面を内軸１の中径部９に一体的に（直接的に）形成したが、インナ側と同様に、アウタ側の内輪軌道面を内軸１とは別体の内輪部材に形成し、これを内軸１に外嵌した構成としてもよい。 In addition, the wheel bearing device of the present invention is not limited to the illustrated form, and may be another form within the scope of the present invention. In the above embodiment, the inner shaft 1 rotates with respect to the outer ring 2. Although it is set as the bearing apparatus for driven wheels made free, this invention is applicable also as a bearing apparatus for drive wheels although illustration is abbreviate | omitted.
In the above embodiment, the outer ring raceway surface on the outer side is formed integrally (directly) on the inner diameter portion 9 of the inner shaft 1. However, as with the inner side, the inner ring raceway surface on the outer side is formed on the inner shaft. It is good also as a structure which formed in the inner ring member separate from 1, and fitted this to the inner shaft 1. FIG.

本発明の実施の一形態に係る軸受装置を示す縦断面図である。1 is a longitudinal sectional view showing a bearing device according to an embodiment of the present invention. 従来の軸受装置を説明する要部断面図である。It is principal part sectional drawing explaining the conventional bearing apparatus.

符号の説明Explanation of symbols

１ 内軸
１ａ インナ側端部
１ｂ アウタ側端部
２ 外輪
３ 第１転動体
４ 第２転動体
５ 内輪部材
６ かしめ部 DESCRIPTION OF SYMBOLS 1 Inner shaft 1a Inner side edge part 1b Outer side edge part 2 Outer ring 3 1st rolling element 4 2nd rolling element 5 Inner ring member 6 Caulking part

Claims (1)

内軸と、この内軸に外嵌するよう設けられた外輪と、前記内軸と前記外輪との間において２列に設けられたインナ側の第１転動体及びアウタ側の第２転動体と、前記内軸のインナ側に外嵌するよう設けられ前記第１転動体用の内輪軌道を有する内輪部材と、前記内軸のインナ側端部の外周側が径外方へ広げられて形成され前記内輪部材を前記内軸に抜け止め固定しているかしめ部と、を備えた車輌用軸受装置において、インナ側の前記第１転動体が前記内軸に外嵌させた前記内輪部材と前記外輪とに対してアンギュラコンタクトとなるように設けられた玉によって構成され、アウタ側の前記第２転動体が円錐ころによって構成されていることを特徴とする車輌用軸受装置。   An inner shaft, an outer ring provided so as to be fitted to the inner shaft, an inner-side first rolling element and an outer-side second rolling element provided in two rows between the inner shaft and the outer ring; The inner ring member having an inner ring raceway for the first rolling element provided so as to be fitted on the inner side of the inner shaft, and the outer peripheral side of the inner side end portion of the inner shaft are formed to be expanded radially outward. A vehicular bearing device including an inner ring member that is secured to the inner shaft to prevent the inner ring member from coming off; and the inner ring member and the outer ring that the inner first rolling element is externally fitted to the inner shaft. A bearing device for a vehicle comprising: a ball provided so as to be an angular contact, wherein the second rolling element on the outer side is constituted by a tapered roller.
JP2006012112A 2006-01-20 2006-01-20 Bearing unit for vehicle Pending JP2007192342A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012201205A (en) * 2011-03-25 2012-10-22 Jtekt Corp Rolling bearing device for wheel
WO2014180669A1 (en) * 2013-05-06 2014-11-13 Aktiebolaget Skf Bearing assembly, mounting of a bevel pinion shaft
US20150110430A1 (en) * 2013-10-21 2015-04-23 Schaeffler Technologies Gmbh & Co. Kg Bearing assembly including tapered rollers and spherical rolling elements

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003097567A (en) * 2001-09-27 2003-04-03 Koyo Seiko Co Ltd Bearing device for axle
JP2003232343A (en) * 2002-02-06 2003-08-22 Nsk Ltd Wheel bearing equipment
JP2004019772A (en) * 2002-06-14 2004-01-22 Fuji Heavy Ind Ltd Compound bearing assembly and gear transmission using it
JP2006009895A (en) * 2004-06-24 2006-01-12 Ntn Corp Bearing device for wheel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003097567A (en) * 2001-09-27 2003-04-03 Koyo Seiko Co Ltd Bearing device for axle
JP2003232343A (en) * 2002-02-06 2003-08-22 Nsk Ltd Wheel bearing equipment
JP2004019772A (en) * 2002-06-14 2004-01-22 Fuji Heavy Ind Ltd Compound bearing assembly and gear transmission using it
JP2006009895A (en) * 2004-06-24 2006-01-12 Ntn Corp Bearing device for wheel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012201205A (en) * 2011-03-25 2012-10-22 Jtekt Corp Rolling bearing device for wheel
WO2014180669A1 (en) * 2013-05-06 2014-11-13 Aktiebolaget Skf Bearing assembly, mounting of a bevel pinion shaft
CN105209772A (en) * 2013-05-06 2015-12-30 斯凯孚公司 Bearing assembly, mounting of a bevel pinion shaft
US20150110430A1 (en) * 2013-10-21 2015-04-23 Schaeffler Technologies Gmbh & Co. Kg Bearing assembly including tapered rollers and spherical rolling elements
US9347493B2 (en) * 2013-10-21 2016-05-24 Schaeffler Technologies AG & Co. KG Bearing assembly including tapered rollers and spherical rolling elements

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