JP2009241616A - Wheel bearing device - Google Patents

Wheel bearing device Download PDF

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JP2009241616A
JP2009241616A JP2008087094A JP2008087094A JP2009241616A JP 2009241616 A JP2009241616 A JP 2009241616A JP 2008087094 A JP2008087094 A JP 2008087094A JP 2008087094 A JP2008087094 A JP 2008087094A JP 2009241616 A JP2009241616 A JP 2009241616A
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wheel
hub wheel
caulking
constant velocity
velocity joint
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Takeshi Kamikawa
剛 上川
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JTEKT Corp
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JTEKT Corp
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Priority to JP2008087094A priority Critical patent/JP2009241616A/en
Priority to EP20090004378 priority patent/EP2105322B1/en
Priority to US12/385,084 priority patent/US8313244B2/en
Publication of JP2009241616A publication Critical patent/JP2009241616A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent interference of a calking fixture and an annular part of a hub wheel by ensuring a pivoting space of the calking fixture in a required range of a calking position when a shaft end of a central shaft part integrally formed on an outer ring of a constant velocity joint is calking-fixed to the hub wheel in a wheel bearing device. <P>SOLUTION: Axial length of the annular part 18 formed on a periphery of a calking-fixed part 17 of an outer side end surface 16 of the hub wheel 10 is set to length that it is not interfered with a calking punch 32 at pivoting rotation of the calking punch 32. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は車輪用軸受装置に関する。具体的にはカシメ加工によって組み立てられる車輪用軸受装置に関する。   The present invention relates to a wheel bearing device. Specifically, the present invention relates to a wheel bearing device assembled by caulking.

車輪用軸受装置には、ハブホイールと、等速ジョイントの外輪と、ハブホイールの外周面および等速ジョイントの外周面にそれぞれ内輪軌道面が形成された複列転がり軸受を備えるものがある。
そして、この種の車輪用軸受装置では、ハブホイールの軸芯部に形成された中空孔に等速ジョイントの外輪に一体形成された中心軸部を嵌合させて、ハブホイールと等速ジョイントの外輪を一体化している。さらに、等速ジョイントの中心軸部の軸端に形成された円筒状端面をカシメ治具で径方向外向きに屈曲させて、ハブホイールのアウター側のカシメ固定部にカシメ固定して軸方向に予圧付与し、ハブホイールと等速ジョイントの外輪の軸方向での緩みを抑止している。 Some wheel bearing devices include a hub wheel, an outer ring of a constant velocity joint, and a double-row rolling bearing in which an outer ring surface of the hub wheel and an outer ring surface of the constant velocity joint are respectively formed with inner ring raceway surfaces.
In this type of wheel bearing device, the hub wheel and the constant velocity joint are fitted into the hollow hole formed in the shaft core portion of the hub wheel by fitting the central shaft portion formed integrally with the outer ring of the constant velocity joint. The outer ring is integrated. Furthermore, the cylindrical end surface formed at the shaft end of the central shaft portion of the constant velocity joint is bent radially outward with a caulking jig, and is caulked and fixed to the caulking fixing portion on the outer side of the hub wheel in the axial direction. Preload is applied to prevent loosening in the axial direction of the outer ring of the hub wheel and constant velocity joint.

ここで、図３を用いて、従来技術により、車輪用軸受装置５０についてカシメ加工を行う方法を説明する。図３では、車輪用軸受装置５０は、ハブホイール５２の中空孔５４に等速ジョイント外輪６０に一体形成された中心軸部６２がスプライン嵌合され、複列転がり軸受の外輪７０が外嵌めされた状態となっている。そして、等速ジョイントの外輪６０の中心軸部６２の軸端部に形成された円筒状端面６４の内側にはカシメ治具であるカシメパンチ７２の先端に形成された円柱状のパンチ凸端７４を挿入することのできるガイド孔６６が設けられている。
そこで、カシメパンチ７２のパンチ凸端７４をガイド孔６６に挿入して、カシメパンチ７２を等速ジョイントの外輪６０の中心軸部６２の軸端部の円筒状端面６４に押し当てて揺動回転させることにより、円筒状端面６４を径方向外向きに屈曲させて、ハブホイール５２のアウター側端面５６の中空孔５４につながるカシメ固定部５７にカシメ固定する。 Here, a method of caulking the wheel bearing device 50 according to the prior art will be described with reference to FIG. In FIG. 3, in the wheel bearing device 50, the center shaft portion 62 integrally formed with the constant velocity joint outer ring 60 is spline fitted into the hollow hole 54 of the hub wheel 52, and the outer ring 70 of the double row rolling bearing is fitted outside. It is in the state. A cylindrical punch convex end 74 formed at the tip of a caulking punch 72 that is a caulking jig is provided inside a cylindrical end surface 64 formed at the shaft end portion of the central shaft portion 62 of the outer ring 60 of the constant velocity joint. A guide hole 66 that can be inserted is provided.
Therefore, the punch convex end 74 of the caulking punch 72 is inserted into the guide hole 66, and the caulking punch 72 is pressed against the cylindrical end face 64 of the central shaft portion 62 of the outer ring 60 of the constant velocity joint to rotate and rotate. Thus, the cylindrical end face 64 is bent outward in the radial direction, and is fixed to the caulking fixing portion 57 connected to the hollow hole 54 of the outer side end face 56 of the hub wheel 52.

先行技術文献として、特開２００１−２４６４４０号公報（特許文献１）がある。特許文献１には、車両用ハブユニットにおいて、等速ジョイントの外輪に連なる円筒軸部を軸方向外端側で径方向外向きに屈曲させて、ハブホイールの軸端面に対してカシメ付ける方法が記載されている。
なお、特許文献１には、カシメの過程でのハブユニットの変形防止のため、カシメ過程で等速ジョイントの外輪およびその円筒軸部に拘束治具をあてがうことが記載されている（特許文献１の図４参照）。
特開２００１−２４６４４０号公報 There exists Unexamined-Japanese-Patent No. 2001-246440 (patent document 1) as a prior art document. Patent Document 1 discloses a method of caulking a shaft end surface of a hub wheel by bending a cylindrical shaft portion connected to an outer ring of a constant velocity joint radially outward on an axial outer end side in a vehicle hub unit. Are listed.
Patent Document 1 describes that a restraining jig is applied to the outer ring of the constant velocity joint and its cylindrical shaft portion in the caulking process in order to prevent deformation of the hub unit during the caulking process (Patent Document 1). FIG. 4).
JP 2001-246440 A

ところで、ハブホイール５２のアウター側端面５６には、カシメ固定部５７の径方向の外側に、車輪側部材を取付ける際にガイドとなる軸方向に突設して円筒状の環状部５８が形成されている。そこで、カシメパンチ７２を揺動回転させてカシメ固定を行うとき、カシメ位置やカシメ径のサイズによっては、カシメパンチ７２がハブホイール５２の環状部５８に干渉して、環状部５８を変形させてしまう懸念がある。   By the way, a cylindrical annular portion 58 is formed on the outer side end surface 56 of the hub wheel 52 so as to project outward in the radial direction of the caulking fixing portion 57 in the axial direction that serves as a guide when the wheel side member is attached. ing. Therefore, when the caulking punch 72 is pivoted and rotated to fix the caulking, depending on the caulking position and the caulking diameter size, the caulking punch 72 may interfere with the annular portion 58 of the hub wheel 52 and deform the annular portion 58. There is.

そこで、本発明が解決しようとする課題は、車輪用軸受装置で等速ジョイントの外輪に一体形成された中心軸部の軸端をハブホイールにカシメ固定するとき、カシメ位置の必要範囲内で、カシメ治具の揺動スペースを確保して、カシメ治具のハブホイールの環状部への干渉を防止することである。   Therefore, the problem to be solved by the present invention is that when the shaft end of the central shaft part integrally formed with the outer ring of the constant velocity joint is fixed to the hub wheel by the wheel bearing device, within the necessary range of the crimping position, This is to secure a rocking space for the caulking jig and prevent the caulking jig from interfering with the annular portion of the hub wheel.

上記課題を解決するため、本発明は次の手段をとる。
まず、本発明の第１の発明は、軸芯部に中空孔が形成されたハブホイールと、中心軸部が一体形成された等速ジョイントの外輪と、ハブホイールの外周面に一方の内輪軌道面が形成され、等速ジョイントの外周面に他方の内輪軌道面が形成された複列転がり軸受とを備え、
前記ハブホイールの中空孔に前記等速ジョイントの中心軸部を嵌合させ、カシメ治具を揺動回転させ、等速ジョイントの中心軸部の軸端に形成された円筒状端面を径方向外向きに屈曲させて、ハブホイールのアウター側端面の該中空孔につながるカシメ固定部にカシメ固定した、車輪用軸受装置であって、
前記ハブホイールのアウター側端面のカシメ固定部の周囲に形成された環状部の軸方向の長さがカシメ治具の揺動回転時にカシメ治具と干渉しない長さに設定されていることを特徴とする。
この第１の発明によれば、ハブホイールのアウター側端面のカシメ固定部の外周部に形成された環状部の軸方向の長さが、カシメ治具の揺動回転時にカシメ治具と干渉しない長さに設定されている。よって、カシメ固定時にカシメ位置の必要範囲内で、カシメ治具の揺動スペースを確保することができるため、カシメ治具のハブホイールの環状部への干渉を防止することができる。
また、カシメ治具によるハブホイールの環状部への干渉が抑制されることにより、等速ジョイントの外輪と一体形成される中心軸部の軸径のアップやカシメの外径アップ等、軸回りの設計の自由度が拡大する。 In order to solve the above problems, the present invention takes the following means.
First, a first invention of the present invention is a hub wheel having a hollow hole formed in a shaft core portion, an outer ring of a constant velocity joint in which a central shaft portion is integrally formed, and one inner ring raceway on an outer peripheral surface of the hub wheel. A double row rolling bearing having a surface formed on the outer peripheral surface of the constant velocity joint and the other inner ring raceway surface,
The central shaft portion of the constant velocity joint is fitted into the hollow hole of the hub wheel, the caulking jig is swung and rotated, and the cylindrical end surface formed at the shaft end of the central shaft portion of the constant velocity joint is radially outward. A bearing device for a wheel, which is bent in a direction and is caulked and fixed to a caulking fixing portion connected to the hollow hole on the outer end surface of the hub wheel,
The axial length of the annular portion formed around the caulking fixing portion on the outer side end surface of the hub wheel is set to a length that does not interfere with the caulking jig when the caulking jig swings and rotates. And
According to the first aspect of the invention, the axial length of the annular portion formed on the outer peripheral portion of the caulking fixing portion on the outer side end face of the hub wheel does not interfere with the caulking jig when the caulking jig swings and rotates. It is set to length. Therefore, since the swaging space of the caulking jig can be secured within the necessary range of the caulking position when the caulking is fixed, it is possible to prevent the caulking jig from interfering with the annular portion of the hub wheel.
In addition, the interference with the annular part of the hub wheel by the caulking jig is suppressed, so that the shaft diameter of the central shaft part integrally formed with the outer ring of the constant velocity joint, the outer diameter of the caulking, etc. can be increased. Increases design freedom.

次に、本発明の第２の発明は、上記第１の発明に係る車輪用軸受装置であって、
前記ハブホイールの中空孔と前記等速ジョイントの中心軸部の嵌合はスプライン嵌合であり、前記等速ジョイントの外輪の中心軸部は軸端部を除いて充実した円柱状であることを特徴とする。
この第２の発明によれば、ハブホイールの中空孔と前記等速ジョイントの中心軸部の嵌合はスプライン嵌合であるため、両者の相対回転が抑止される。また、等速ジョイントの外輪の中心軸部は軸端部を除いて充実した円柱状であるため、カシメ加工時に等速ジョイントの外輪の中心軸部にかかる応力によって中心軸部が変形する懸念がない。 Next, a second invention of the present invention is the wheel bearing device according to the first invention,
The hollow hole of the hub wheel and the central shaft portion of the constant velocity joint are fitted by spline fitting, and the central shaft portion of the outer ring of the constant velocity joint is a solid cylindrical shape excluding the shaft end portion. Features.
According to the second aspect of the present invention, since the fitting between the hollow hole of the hub wheel and the central shaft portion of the constant velocity joint is a spline fitting, the relative rotation of both is suppressed. In addition, since the center shaft portion of the outer ring of the constant velocity joint is a solid columnar shape except for the shaft end, there is a concern that the center shaft portion may be deformed by the stress applied to the center shaft portion of the outer ring of the constant velocity joint during caulking. Absent.

次に、本発明の第３の発明は、上記第１の発明または第２の発明に係る車輪用軸受装置であって、
前記ハブホイールの環状部に、該ハブホイールに車輪側部材を取付ける際のガイドとなる、軸方向に伸びたカバーを取付けたことを特徴とする。
この第３の発明によれば、軸方向に伸びたカバーがハブホイールに車輪側部材を取付ける際のガイドとなるため、車輪側部材の取付けが容易である。 Next, a third invention of the present invention is the wheel bearing device according to the first invention or the second invention,
A cover extending in the axial direction is attached to the annular portion of the hub wheel, which serves as a guide when the wheel side member is attached to the hub wheel.
According to the third aspect of the invention, since the cover extending in the axial direction serves as a guide when the wheel side member is attached to the hub wheel, the wheel side member can be easily attached.

上記本発明の各発明によれば、次の効果が得られる。
まず、上述の第１の発明によれば、ハブホイールのアウター側端面のカシメ固定部の周囲に形成された環状部の軸方向の長さが、カシメ治具の揺動回転時にカシメ治具と干渉しない長さに設定されている。よって、カシメ固定時にカシメ位置の必要範囲内で、カシメ治具の揺動スペースを確保することができるため、カシメ治具とハブホイールの環状部の干渉を防止することができる。また、等速ジョイントの外輪の中心軸部の軸径のアップやカシメの外径アップ等、ハブホイールの軸回りの設計の自由度が拡大する。
次に上述の第２の発明によれば、ハブホイールの中空孔と前記等速ジョイントの中心軸部の嵌合はスプライン嵌合であるため、両者の相対回転が抑止される。また、等速ジョイントの外輪の中心軸部は軸端部を除いて充実した円柱状であるため、カシメ加工時に等速ジョイントの外輪の中心軸部にかかる応力によって中心軸部が変形する懸念がない。
次に上述の第３の発明によれば、軸方向に伸びたカバーがハブホイールに車輪側部材を取付ける際のガイドとなるため、車輪側部材の取付けが容易である。 According to each invention of the present invention, the following effects can be obtained.
First, according to the first invention described above, the axial length of the annular portion formed around the caulking fixing portion on the outer side end surface of the hub wheel is determined so that the caulking jig The length is set so as not to interfere. Therefore, since the swaging space of the caulking jig can be secured within the necessary range of the caulking position when the caulking is fixed, interference between the caulking jig and the annular portion of the hub wheel can be prevented. In addition, the degree of freedom in designing around the hub wheel axis, such as increasing the shaft diameter of the center shaft of the outer ring of the constant velocity joint and increasing the outer diameter of the caulking, is increased.
Next, according to the above-mentioned second invention, since the fitting of the hollow hole of the hub wheel and the central shaft portion of the constant velocity joint is a spline fitting, the relative rotation of both is suppressed. In addition, since the center shaft portion of the outer ring of the constant velocity joint is a solid columnar shape except for the shaft end, there is a concern that the center shaft portion may be deformed by the stress applied to the center shaft portion of the outer ring of the constant velocity joint during caulking. Absent.
Next, according to the above-mentioned third invention, since the cover extending in the axial direction serves as a guide when the wheel side member is attached to the hub wheel, the attachment of the wheel side member is easy.

以下、本発明を実施するための最良の形態について説明する。
図１を用いて本発明の一実施例である車輪用軸受装置１０においてカシメ加工を行う方法について説明する。図１では、車輪用軸受装置１０は、カシメ加工に先立って、等速ジョイントの椀形外輪２０の外周に形成された内輪軌道面に転動体として複数の玉４０を配置した後、椀形外輪２０に円筒形状の外輪３０を外嵌する。その後、外輪３０の他方側（図１の上側）内周面に形成された外輪軌道面に転動体としての複数の玉４１を配置した後、椀形外輪２０に一体形成された中心軸２２をハブホイール１２の中空孔１４にスプライン嵌合する。
そして、椀形外輪２０の中心軸部２２の軸端部には円筒状端面２４が形成されており、円筒状端面２４の内側には、カシメ治具であるシメパンチ３２の先端に円柱状に突設形成されたのパンチ凸端３４を挿入することのできるガイド孔２６が設けられている。
また、ハブホイール１２のアウター側端面１６の中空孔１４につながるカシメ固定部１７の周囲には円筒状の環状部１８が形成されている。そして、環状部１８の軸方向の長さは、カシメパンチ３２の揺動回転時にカシメパンチ３２と干渉しない長さに設定されている。 Hereinafter, the best mode for carrying out the present invention will be described.
A method for caulking in a wheel bearing device 10 according to an embodiment of the present invention will be described with reference to FIG. In FIG. 1, prior to caulking, the wheel bearing device 10 disposes a plurality of balls 40 as rolling elements on the inner ring raceway surface formed on the outer periphery of the saddle-shaped outer ring 20 of the constant velocity joint. A cylindrical outer ring 30 is fitted on 20. Thereafter, after arranging a plurality of balls 41 as rolling elements on the outer ring raceway surface formed on the inner peripheral surface of the other side of the outer ring 30 (upper side in FIG. 1), the central shaft 22 integrally formed with the bowl-shaped outer ring 20 The spline is fitted into the hollow hole 14 of the hub wheel 12.
A cylindrical end surface 24 is formed at the shaft end portion of the central shaft portion 22 of the bowl-shaped outer ring 20, and the cylindrical end surface 24 protrudes in a columnar shape at the tip of a crimp punch 32 that is a crimping jig. A guide hole 26 into which the formed punch convex end 34 can be inserted is provided.
A cylindrical annular portion 18 is formed around a caulking fixing portion 17 connected to the hollow hole 14 on the outer side end surface 16 of the hub wheel 12. The axial length of the annular portion 18 is set to a length that does not interfere with the caulking punch 32 when the caulking punch 32 is swung and rotated.

そこで、カシメパンチ３２のパンチ凸端３４を等速ジョイントの椀形外輪２０の中心軸部２２の円筒状端面２４の内側のガイド孔２６挿入して、カシメパンチ３２を円筒状端面２４に押し当てて揺動回転させることにより、円筒状端面２４を径方向外向きに屈曲させて、ハブホイール１２のアウター側端面１６のカシメ固定部１７にカシメ固定する。
なお、カシメ加工時には等速ジョイントの椀形外輪２０側を下にして台に乗せ中心軸部２２の軸端にカシメパンチ３２を押し当てて揺動回転させるため、等速ジョイントの椀形外輪２０に力が加わって変形する懸念がある。そこで、カシメ加工により等速ジョイントの外輪２０が変形することを防ぐため、特許文献１の図４に記載の技術を用いて、カシメ加工時に等速ジョイントの外輪に拘束治具をあてがうことが好ましい。 Therefore, the punch convex end 34 of the caulking punch 32 is inserted into the guide hole 26 inside the cylindrical end surface 24 of the center shaft portion 22 of the saddle-shaped outer ring 20 of the constant velocity joint, and the caulking punch 32 is pressed against the cylindrical end surface 24 and shaken. By dynamically rotating, the cylindrical end surface 24 is bent outward in the radial direction, and is caulked and fixed to the caulking fixing portion 17 of the outer side end surface 16 of the hub wheel 12.
In the caulking process, the vertical outer ring 20 side of the constant velocity joint is placed on the base and the caulking punch 32 is pressed against the shaft end of the central shaft portion 22 to swing and rotate. There is a concern of deformation due to force. Therefore, in order to prevent the outer ring 20 of the constant velocity joint from being deformed by caulking, it is preferable to apply a restraining jig to the outer ring of the constant velocity joint using the technique described in FIG. .

ここで、前述の通り、ハブホイール１２のアウター側端面１６のカシメ固定部１７の外周部に形成された環状部１８の軸方向の長さは、カシメパンチ３２の揺動回転時にカシメパンチ３２と干渉しない長さに設定されている。よって、カシメ固定時にカシメ位置の必要範囲内で、カシメパンチ３２の揺動スペースを確保することができるため、カシメパンチ３２のハブホイール１２の環状部１８への干渉を防止することができる。   Here, as described above, the axial length of the annular portion 18 formed on the outer peripheral portion of the caulking fixing portion 17 of the outer side end surface 16 of the hub wheel 12 does not interfere with the caulking punch 32 when the caulking punch 32 is swung. It is set to length. Therefore, since the swivel space of the caulking punch 32 can be secured within the necessary range of the caulking position when the caulking is fixed, interference of the caulking punch 32 with the annular portion 18 of the hub wheel 12 can be prevented.

カシメ加工の終了後は、ハブホイール１２の環状部１８に、ハブホイール１２に車輪側部材を取付ける際のガイドとなる、軸方向に延びたカバー３６を取付ける。図２にハブホイール１２の環状部１８にカバー３６を取付けた状態を示す。実施例では樹脂製のカバー３６を使用しているが、カバー３６は鉄製でも良い。
車輪用軸受装置１０にはカバー３６が取付けられているため、車輪用軸受装置１０への車輪側部材の取付けが容易である。また、カバー３６は、車輪用軸受装置１０のアウター側から車輪用軸受装置１０の内部への水の進入を防止して、カシメ部やスプライン嵌合部での錆の発生を防止する役割も果たす。 After the crimping process is completed, a cover 36 extending in the axial direction is attached to the annular portion 18 of the hub wheel 12 and serves as a guide when the wheel side member is attached to the hub wheel 12. FIG. 2 shows a state where the cover 36 is attached to the annular portion 18 of the hub wheel 12. Although the resin cover 36 is used in the embodiment, the cover 36 may be made of iron.
Since the cover 36 is attached to the wheel bearing device 10, it is easy to attach the wheel side member to the wheel bearing device 10. The cover 36 also prevents water from entering the inside of the wheel bearing device 10 from the outer side of the wheel bearing device 10, and also plays a role of preventing the occurrence of rust at the caulking portion and the spline fitting portion. .

上記実施例によれば、カシメパンチ３２によるハブホイール１２の環状部１８への干渉が抑制されることにより、等速ジョイントの椀形外輪２０と一体形成される中心軸部２２の軸径のアップやカシメの外径アップ等、軸回りの設計の自由度が拡大する。また、ハブホイール１２の環状部１８の径を小さくすることも可能となる。
上記実施例では、等速ジョイントと一体形成された中心軸部は軸端部を除いて充実した円柱状としている。そのため、カシメ加工時に等速ジョイントの外輪の中心軸部にかかる応力により中心軸部が変形する懸念がない。
なお、等速ジョイントの中心軸部を円筒形状とすれば、車輪用軸受装置の軽量化を図ることができる。この場合には、カシメ加工時に中心軸部が変形することがないよう、円筒形状の中心軸部の内径部に拘束治具をあてがってカシメ加工をすることが好ましい。 According to the above embodiment, interference with the annular portion 18 of the hub wheel 12 by the caulking punch 32 is suppressed, so that the shaft diameter of the central shaft portion 22 formed integrally with the bowl-shaped outer ring 20 of the constant velocity joint can be increased. The degree of freedom in designing around the shaft, such as increasing the outer diameter of the caulking, is expanded. In addition, the diameter of the annular portion 18 of the hub wheel 12 can be reduced.
In the above embodiment, the central shaft portion integrally formed with the constant velocity joint has a solid cylindrical shape except for the shaft end portion. Therefore, there is no concern that the central shaft portion is deformed by stress applied to the central shaft portion of the outer ring of the constant velocity joint during caulking.
If the central shaft portion of the constant velocity joint is cylindrical, the weight of the wheel bearing device can be reduced. In this case, it is preferable to apply the restraining jig to the inner diameter portion of the cylindrical central shaft portion so that the central shaft portion is not deformed during the crimping processing.

一実施例におけるカシメ加工手順を説明するための図である。It is a figure for demonstrating the crimping process sequence in one Example. 一実施例で車輪用軸受装置にカバーを取付けた状態を示す図である。It is a figure which shows the state which attached the cover to the wheel bearing apparatus in one Example. 従来技術によるカシメ加工手順を説明するための図である。It is a figure for demonstrating the crimping process procedure by a prior art.

符号の説明Explanation of symbols

１０ 車輪用軸受装置
１２ ハブホイール
１４ 中空孔
１６ アウター側端面
１７ カシメ固定部
１８ 環状部
２０ 等速ジョイントの椀形外輪
２２ 中心軸部
２４ 円筒状端面
２６ ガイド孔
３０ 複列転がり軸受の外輪
３２ カシメパンチ
３４ パンチ凸端
３６ カバー
４０，４１ 玉
DESCRIPTION OF SYMBOLS 10 Wheel bearing apparatus 12 Hub wheel 14 Hollow hole 16 Outer side end surface 17 Caulking fixed part 18 Annular part 20 Cylindrical outer ring 22 of constant velocity joint Center shaft part 24 Cylindrical end surface 26 Guide hole 30 Outer ring 32 of double row rolling bearing Caulking punch 34 Punch convex end 36 Cover 40, 41 ball

Claims (3)

軸芯部に中空孔が形成されたハブホイールと、中心軸部が一体形成された等速ジョイントの外輪と、ハブホイールの外周面に一方の内輪軌道面が形成され、等速ジョイントの外周面に他方の内輪軌道面が形成された複列転がり軸受を備え、
前記ハブホイールの中空孔に前記等速ジョイントの中心軸部を嵌合させ、カシメ治具を揺動回転させ、等速ジョイントの中心軸部の軸端に形成された円筒状端面を径方向外向きに屈曲させて、ハブホイールのアウター側端面の該中空孔につながるカシメ固定部にカシメ固定した、車輪用軸受装置であって、
前記ハブホイールのアウター側端面のカシメ固定部の周囲に形成された環状部の軸方向の長さがカシメ治具の揺動回転時にカシメ治具と干渉しない長さに設定されていることを特徴とする車輪用軸受装置。 A hub wheel having a hollow hole in the shaft core part, an outer ring of a constant velocity joint in which a central shaft part is integrally formed, and one inner ring raceway surface is formed on the outer peripheral surface of the hub wheel. Provided with a double row rolling bearing on which the other inner ring raceway surface is formed,
The central shaft portion of the constant velocity joint is fitted into the hollow hole of the hub wheel, the caulking jig is swung and rotated, and the cylindrical end surface formed at the shaft end of the central shaft portion of the constant velocity joint is radially outward. A bearing device for a wheel, which is bent in a direction and is caulked and fixed to a caulking fixing portion connected to the hollow hole on the outer end surface of the hub wheel,
The axial length of the annular portion formed around the caulking fixing portion on the outer side end surface of the hub wheel is set to a length that does not interfere with the caulking jig when the caulking jig swings and rotates. Wheel bearing device. 請求項１に記載の車輪用軸受装置であって、
前記ハブホイールの中空孔と前記等速ジョイントの中心軸部の嵌合はスプライン嵌合であり、前記等速ジョイントの外輪の中心軸部は軸端部を除いて充実した円柱状であることを特徴とする車輪用軸受装置。 The wheel bearing device according to claim 1,
The hollow hole of the hub wheel and the central shaft portion of the constant velocity joint are fitted by spline fitting, and the central shaft portion of the outer ring of the constant velocity joint is a solid cylindrical shape excluding the shaft end portion. A wheel bearing device. 請求項１または請求項２に記載の車輪用軸受装置であって、
前記ハブホイールの環状部に、該ハブホイールに車輪側部材を取付ける際のガイドとなる、軸方向に延びたカバーを取付けたことを特徴とする車輪用軸受装置。

The wheel bearing device according to claim 1 or 2,
A wheel bearing device, characterized in that an axially extending cover is attached to an annular portion of the hub wheel, which serves as a guide when a wheel side member is attached to the hub wheel.

JP2008087094A 2008-03-28 2008-03-28 Wheel bearing device Pending JP2009241616A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008087094A JP2009241616A (en) 2008-03-28 2008-03-28 Wheel bearing device
EP20090004378 EP2105322B1 (en) 2008-03-28 2009-03-26 Wheel bearing assembly, manufacturing method therefor, and calk jig
US12/385,084 US8313244B2 (en) 2008-03-28 2009-03-30 Wheel bearing assembly, manufacturing method therefor, and calk jig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008087094A JP2009241616A (en) 2008-03-28 2008-03-28 Wheel bearing device

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WO2011048810A1 (en) 2009-10-20 2011-04-28 パナソニック株式会社 Vector quantisation device and vector quantisation method
JP2015189267A (en) * 2014-03-27 2015-11-02 Ntn株式会社 Wheel bearing device for driven wheel

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* Cited by examiner, † Cited by third party
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WO2011048810A1 (en) 2009-10-20 2011-04-28 パナソニック株式会社 Vector quantisation device and vector quantisation method
JP2015189267A (en) * 2014-03-27 2015-11-02 Ntn株式会社 Wheel bearing device for driven wheel

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