JP2000343905A - Assembling method for wheel-supporting rolling bearing unit - Google Patents
Assembling method for wheel-supporting rolling bearing unitInfo
- Publication number
- JP2000343905A JP2000343905A JP15473799A JP15473799A JP2000343905A JP 2000343905 A JP2000343905 A JP 2000343905A JP 15473799 A JP15473799 A JP 15473799A JP 15473799 A JP15473799 A JP 15473799A JP 2000343905 A JP2000343905 A JP 2000343905A
- Authority
- JP
- Japan
- Prior art keywords
- raceway
- ring
- bearing unit
- inner ring
- rolling bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、自動車の車輪を
懸架装置に対して回転自在に支持する為の車輪支持用転
がり軸受ユニットの組立方法の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method for assembling a rolling bearing unit for supporting a wheel for rotatably supporting a wheel of an automobile with respect to a suspension device.
【０００２】[0002]
【従来の技術】自動車の車輪を懸架装置に対して回転自
在に支持する為に、車輪支持用転がり軸受ユニットを使
用する。この様な車輪支持用転がり軸受ユニットの構造
の１例に就いて、後述する本発明の実施の形態の第１例
の説明で使用する、図１の構造を参照しつつ説明する。
この図１に示した車輪支持用転がり軸受ユニットは、外
径側軌道輪部材である外輪１の内径側に、内径側軌道輪
部材であるハブ２を、複列の円すいころ軸受３、４によ
り回転自在に支持している。このうちの外輪１は、内周
面の一端（自動車への組み付け状態で車両の幅方向外側
となる端で、図１の左端）側部分に、第一列の円すいこ
ろ軸受３を構成する為の、円すい凹面状の第一の外輪軌
道５を、同じく他端（自動車への組み付け状態で車両の
幅方向中央側となる端で、図１の右端）側部分に、第二
列の円すいころ軸受４を構成する為の、円すい凹面状の
第二の外輪軌道６を、それぞれ形成すると共に、外周面
に懸架装置に支持固定する為の取付部７を設けている。2. Description of the Related Art A rolling bearing unit for supporting a wheel is used to rotatably support a wheel of an automobile with respect to a suspension device. An example of the structure of such a wheel supporting rolling bearing unit will be described with reference to the structure of FIG. 1 which will be used in the description of a first example of an embodiment of the present invention described later.
In the rolling bearing unit for supporting wheels shown in FIG. 1, a hub 2 serving as an inner race member is provided on the inner diameter side of an outer race 1 serving as an outer race member by double-row tapered roller bearings 3 and 4. It is rotatably supported. Of these, the outer ring 1 constitutes a first row of tapered roller bearings 3 at one end of the inner peripheral surface (the end which is the outer side in the width direction of the vehicle when assembled to the vehicle, the left end in FIG. 1). A first row of conical concave outer raceway 5 is also provided with a second row of tapered rollers at the other end (the end which is the center in the width direction of the vehicle when assembled to the vehicle, the right end in FIG. 1). Conical concave second outer raceways 6 for forming the bearing 4 are formed, and an outer peripheral surface is provided with a mounting portion 7 for supporting and fixing to a suspension device.
【０００３】又、上記ハブ２は、軸部材であるハブ本体
８と内輪９とを組み合わせて成る。このうちのハブ本体
８は、外周面の一端部に車輪を支持する為のフランジ１
０を、同じく中間部に上記第一列の円すいころ軸受３を
構成する為の、円すい凸面状の第一の内輪軌道１１を、
同じく他端部にこの第一の内輪軌道１１を形成した部分
よりも小径の段部１３を、それぞれ形成している。尚、
上記第一の内輪軌道１１は、上記ハブ本体８の中間部に
外嵌した別の内輪の外周面に形成する場合もある。又、
上記内輪９は、外周面に上記第二列の円すいころ軸受４
を構成する為の、円すい凸面状の第二の内輪軌道１２を
有する。この様な内輪９は、上記段部１３に圧入外嵌す
ると共に、上記ハブ本体８の他端部に設けたかしめ部１
４により、上記段部１３の段差面１５に向け抑え付けて
いる。この様なかしめ部１４は、上記ハブ本体８の他端
部で、少なくとも上記段部１３に圧入（締り嵌めで）外
嵌した内輪９の他端面よりも軸方向に突出する部分に形
成した円筒部１６を、揺動プレス加工等により直径方向
外方に塑性変形させて形成する。[0003] The hub 2 is formed by combining a hub body 8 as a shaft member and an inner ring 9. The hub body 8 is a flange 1 for supporting a wheel at one end of the outer peripheral surface.
0, the first inner ring raceway 11 having a tapered convex shape for constituting the first row of tapered roller bearings 3 also in the middle part,
Similarly, a step portion 13 having a smaller diameter than the portion where the first inner raceway 11 is formed is formed at the other end. still,
The first inner raceway 11 may be formed on the outer peripheral surface of another inner race fitted to the intermediate portion of the hub body 8. or,
The inner ring 9 is provided on the outer peripheral surface thereof with the second row of tapered roller bearings 4.
Has a second inner raceway 12 having a conical convex shape. Such an inner ring 9 is press-fitted and externally fitted to the step portion 13 and the swaging portion 1 provided at the other end of the hub body 8.
4 presses down toward the step surface 15 of the step portion 13. Such a caulking portion 14 is a cylinder formed at the other end portion of the hub body 8 at a portion protruding in the axial direction from at least the other end surface of the inner ring 9 press-fitted (tightly fitted) to the step portion 13 at least. The portion 16 is formed by plastically deforming diametrically outward by rocking press working or the like.
【０００４】又、上記第一、第二の外輪軌道５、６と上
記第一、第二の内輪軌道１１、１２との間には、それぞ
れが転動体である複数個ずつの円すいころ１７、１７
を、それぞれ第一、第二の保持器１８、１９により転動
自在に保持した状態で設けている。これにより、上記第
一列、第二列の両円すいころ軸受３、４を構成してい
る。尚、トラック等の重量の嵩む自動車用の車輪支持用
転がり軸受ユニットの場合には、上記転動体として上述
の様な円すいころ１７、１７を使用するが、乗用車等の
比較的重量の軽い自動車用の車輪支持用転がり軸受ユニ
ットの場合には、上記転動体として、玉を使用する場合
が多い。又、図示の例では、上記外輪１の一端部に支持
したシールリング２０により、上記複数個の円すいころ
１７、１７を設けた空間２１の一端開口部を密閉してい
る。尚、図示は省略するが、この空間２１の他端開口部
も、別のシールリングにより密閉するか、或は、上記外
輪１の他端部に装着したカバーにより塞ぐ。これによ
り、上記空間２１に封入したグリース等の潤滑剤が外部
に漏洩するのを防止すると共に、外部からこの空間２１
内に泥水等の異物が侵入するのを防止する。A plurality of tapered rollers 17, each of which is a rolling element, is provided between the first and second outer raceways 5, 6 and the first and second inner raceways 11, 12. 17
Are provided in such a manner as to be rotatably held by first and second holders 18 and 19, respectively. Thus, the first and second rows of the tapered roller bearings 3 and 4 are configured. In the case of a wheel supporting rolling bearing unit for a heavy vehicle such as a truck, the above-described tapered rollers 17, 17 are used as the rolling elements, but for a relatively light vehicle such as a passenger car. In the case of the rolling bearing unit for supporting wheels described above, a ball is often used as the rolling element. In the illustrated example, a seal ring 20 supported at one end of the outer ring 1 seals an opening at one end of a space 21 provided with the plurality of tapered rollers 17. Although not shown, the opening at the other end of the space 21 is also sealed by another seal ring, or closed by a cover attached to the other end of the outer ring 1. This prevents the lubricant such as grease sealed in the space 21 from leaking to the outside, and also prevents the space 21 from entering from outside.
Prevents foreign matter such as muddy water from entering inside.
【０００５】上述の様に構成する車輪支持用転がり軸受
ユニットを組み立てる際には、先ず、上記ハブ本体８の
周囲に上記外輪１を配置すると共に、上記第一の内輪軌
道１１と上記第一の外輪軌道５との間に上記複数個の円
すいころ１７、１７を、上記第一の保持器１８により保
持した状態で設ける。これと共に、上記シールリング２
０を、上記円筒状の空間２１の一端開口部を塞ぐ状態で
装着する。尚、ここまでの組立作業の順序は、車輪支持
用転がり軸受ユニットの構造によって、多少異なる。[0005] When assembling the wheel supporting rolling bearing unit constructed as described above, first, the outer ring 1 is arranged around the hub main body 8 and the first inner ring raceway 11 and the first inner raceway 11 are arranged. The plurality of tapered rollers 17, 17 are provided between the outer raceway 5 and the outer raceway 5 while being held by the first holder 18. At the same time, the seal ring 2
0 is mounted so as to close one end opening of the cylindrical space 21. The order of the assembling operation so far differs somewhat depending on the structure of the rolling bearing unit for supporting the wheel.
【０００６】例えば、図１に示した車輪支持用転がり軸
受ユニットの場合には、先ず、上記第一の内輪軌道１１
の周囲に上記複数個の円すいころ１７、１７を、上記第
一の保持器１８に保持した状態で配置する。尚、この状
態で、上記第一の内輪軌道１１と上記各円すいころ１
７、１７の転動面とに、グリース等の潤滑剤を塗布して
おく。又、上記外輪１の一端部に、上記シールリング２
０を外嵌固定しておく。図示の例の場合、このシールリ
ング２０は、断面Ｌ字形で全体を円環状に形成した芯金
２２と、同じく円環状に形成して、この芯金２２の内径
側部分に焼き付け、接着等により固定した弾性材２３と
から成る。上記外輪１の一端部には、このうちの芯金２
２を外嵌固定する。[0006] For example, in the case of the rolling bearing unit for supporting wheels shown in FIG.
, The plurality of tapered rollers 17, 17 are arranged while being held by the first holder 18. In this state, the first inner raceway 11 and each of the tapered rollers 1
A lubricant such as grease is applied to the rolling surfaces 7 and 17. Also, the seal ring 2 is attached to one end of the outer ring 1.
0 is externally fixed. In the case of the example shown in the figure, the seal ring 20 has an L-shaped cross section and a core 22 formed in an annular shape as a whole. And a fixed elastic member 23. One end of the outer ring 1 has a core metal 2
2 is externally fitted and fixed.
【０００７】次いで、この様にシールリング２０を外嵌
固定した上記外輪１に上記ハブ本体８を、その他端部側
から挿通し、この外輪１をハブ本体８の周囲に配置す
る。この挿通作業により、上記第一の外輪軌道５が上記
第一の保持器１８により保持した複数個の円すいころ１
７、１７の転動面と当接する。尚、この外輪１の挿通作
業を行なうのに先立ち、上記第一の外輪軌道５にも、グ
リース等の潤滑剤を塗布しておく。又、上述の様に外輪
１をハブ本体８の周囲に配置する事に伴い、上記シール
リング２０を構成する弾性材２３に設けた複数本のシー
ルリップの先端縁が、上記ハブ本体８の一端寄り部外周
面及び前記フランジ１０の基端部側面に当接（運転時に
は摺接）し、上記円筒状の空間２１の一端開口部を密閉
する。Next, the hub body 8 is inserted from the other end into the outer ring 1 on which the seal ring 20 is externally fixed as described above, and the outer ring 1 is arranged around the hub body 8. As a result of this insertion operation, the plurality of tapered rollers 1 held by the first outer raceway 5 by the first cage 18 are formed.
It comes into contact with the rolling surfaces 7 and 17. Before the outer ring 1 is inserted, a lubricant such as grease is also applied to the first outer ring track 5. Further, with the outer ring 1 disposed around the hub body 8 as described above, the leading edges of the plurality of seal lips provided on the elastic member 23 constituting the seal ring 20 are connected to one end of the hub body 8. It comes into contact with the outer peripheral surface of the deviated portion and the side surface of the base end of the flange 10 (slidingly contacts during operation), and seals the opening at one end of the cylindrical space 21.
【０００８】尚、図１に示した構造の場合、上記シール
リング２０の内径側部分を構成する弾性材２３の内径
は、上記第一の保持器１８の外径、並びにこの第一の保
持器１８により保持した複数個の円すいころ１７、１７
の外接円の直径よりも大きくしている。この為、上述の
様に外輪１の内側に上記ハブ本体８を、その他端部側か
ら挿通する際に、この外輪１の一端部に外嵌固定した上
記シールリング２０の内径側を、上記第一の保持器１８
及びこの第一の保持器１８により保持した複数個の円す
いころ１７、１７を通過させる事ができる。この為、図
１に示した構造の場合、上記シールリング２０を上記外
輪１に装着する作業は、この外輪１の内側に上記ハブ本
体８を挿通する作業に先立って行なう。In the case of the structure shown in FIG. 1, the inner diameter of the elastic member 23 constituting the inner diameter side portion of the seal ring 20 is equal to the outer diameter of the first cage 18 and the first cage. A plurality of tapered rollers 17, 17 held by 18
Is larger than the diameter of the circumscribed circle. Therefore, when the hub body 8 is inserted into the outer ring 1 from the other end side as described above, the inner diameter side of the seal ring 20 that is externally fitted and fixed to one end of the outer ring 1 One cage 18
And a plurality of tapered rollers 17 held by the first holder 18 can be passed. Therefore, in the case of the structure shown in FIG. 1, the operation of attaching the seal ring 20 to the outer ring 1 is performed prior to the operation of inserting the hub body 8 inside the outer ring 1.
【０００９】尚、この様にシールリング２０を外輪１に
予め装着しておく事は、上記シールリング２０を構成す
る部材のうち、（上記芯金２２を除いた）上記弾性材２
３の内径を、上記第一の保持器１８により保持した複数
個の円すいころ１７、１７の外接円の直径（この外接円
の直径よりも上記第一の保持器１８の外径の方が大きい
場合には、この第一の保持器１８の外径）よりも少しだ
け小さくした場合でも、実現できる。即ち、この場合に
は、上記弾性材２２の内径側部分が上記第一の保持器１
８により保持した複数個の円すいころ１７、１７（或
は、この第一の保持器１８）の外径面に沿って弾性変形
する事により、上記シールリング２０の内径側を上記第
一の保持器１８及びこの第一の保持器１８により保持し
た複数個の円すいころ１７、１７が通過する事を許容す
る。It is to be noted that mounting the seal ring 20 on the outer race 1 in advance as described above requires that the elastic member 2 (excluding the core metal 22) of the members constituting the seal ring 20 be used.
3 is the diameter of a circumscribed circle of the plurality of tapered rollers 17, 17 held by the first retainer 18 (the outer diameter of the first retainer 18 is larger than the diameter of the circumscribed circle). In this case, it can be realized even if it is slightly smaller than the outer diameter of the first retainer 18). That is, in this case, the inner diameter side portion of the elastic member 22 is
By elastically deforming along the outer diameter surface of the plurality of tapered rollers 17, 17 (or the first cage 18) held by the inner ring 8, the inner diameter side of the seal ring 20 is held by the first holder. The container 18 and the plurality of tapered rollers 17, 17 held by the first holder 18 are allowed to pass.
【００１０】上述の様にハブ本体８の周囲に外輪１を配
置しつつ、上記第一の内輪軌道１１と上記第一の外輪軌
道５との間に上記第一の保持器１８により保持した複数
個の円すいころ１７、１７を設けると共に、上記シール
リング２０により前記空間２１の一端開口部を塞いだな
らば、次いで、前記内輪９を上記ハブ本体８の他端部に
外嵌する。この外嵌作業に先立って、この内輪９の外周
面に形成した第二の内輪軌道１２の周囲に複数個の円す
いころ１７、１７を、前記第二の保持器１９により保持
した状態で設置しておく。尚、この状態で、上記第二の
内輪軌道１２と上記各円すいころ１７、１７の転動面と
に、グリース等の潤滑剤を塗布しておく。そして、この
状態で上記内輪９を、上記ハブ本体８の他端部に形成し
た段部１３に、締り嵌めで外嵌する。そして、この外嵌
作業に伴って、上記第二の保持器１９により保持した複
数個の円すいころ１７、１７の転動面を、上記外輪１の
他端寄り部内周面に形成した第二の外輪軌道６に当接さ
せる。尚、上記外嵌作業に先立って、この第二の外輪軌
道６にも、グリース等の潤滑剤を塗布しておく。次い
で、上記ハブ本体８の他端部に形成した円筒部１６を、
揺動プレス加工等により直径方向外方に塑性変形させ
て、かしめ部１４を形成する。そして、このかしめ部１
４により上記内輪９の他端面を軸方向に抑え付ける事
で、この内輪９を上記ハブ本体８に固定する。While the outer race 1 is arranged around the hub body 8 as described above, the plurality of races held by the first retainer 18 between the first inner raceway 11 and the first outer raceway 5 are arranged. When the tapered rollers 17 and 17 are provided and one end opening of the space 21 is closed by the seal ring 20, the inner ring 9 is then fitted to the other end of the hub body 8. Prior to the outer fitting operation, a plurality of tapered rollers 17, 17 are installed around the second inner raceway 12 formed on the outer peripheral surface of the inner race 9 while being held by the second retainer 19. Keep it. In this state, a lubricant such as grease is applied to the second inner raceway 12 and the rolling surfaces of the tapered rollers 17 and 17 in advance. Then, in this state, the inner ring 9 is externally fitted to the step portion 13 formed at the other end of the hub main body 8 by interference fitting. Along with this outer fitting operation, the rolling surfaces of the plurality of tapered rollers 17, 17 held by the second retainer 19 are formed on the inner peripheral surface near the other end of the outer ring 1. It is brought into contact with the outer raceway 6. Prior to the outer fitting operation, a lubricant such as grease is also applied to the second outer raceway 6. Next, the cylindrical portion 16 formed at the other end of the hub body 8 is
The caulked portion 14 is formed by plastically deforming outward in the diameter direction by rocking press working or the like. And this caulking part 1
The inner ring 9 is fixed to the hub main body 8 by pressing the other end surface of the inner ring 9 in the axial direction by the use of the inner ring 9.
【００１１】そして、上述の様に形成したかしめ部１４
により、上記内輪９の他端面を押圧し、この内輪９の一
端面を前記段差面１５に押し付ける事に基づき、転がり
軸受ユニットの（正又は負）の内部隙間を所望値にす
る。尚、この様に、上記内輪９を上記ハブ本体８の段部
１３に外嵌し、更に上記かしめ部１４を形成する際に
は、上記第二の保持器１９により保持した複数個の円す
いころ１７、１７の転動面と上記第二の外輪軌道６及び
上記第二の内輪軌道１２との当接部、並びに、前記第一
の保持器１８により保持した複数個の円すいころ１７、
１７の転動面と前記第一の外輪軌道５及び前記第一の内
輪軌道１１との当接部に、それぞれ上記各円すいころ１
７、１７の母線方向に亙る滑りが生じる。The caulking portion 14 formed as described above is used.
By pressing the other end surface of the inner ring 9 and pressing the one end surface of the inner ring 9 against the step surface 15, the (positive or negative) internal clearance of the rolling bearing unit is set to a desired value. When the inner ring 9 is externally fitted to the step portion 13 of the hub body 8 and the caulking portion 14 is further formed, a plurality of tapered rollers held by the second retainer 19 are used. 17, a contact portion between the rolling surface of 17 and the second outer raceway 6 and the second inner raceway 12, and a plurality of tapered rollers 17 held by the first retainer 18;
Each of the tapered rollers 1 is provided at a contact portion between the rolling surface 17 and the first outer raceway 5 and the first inner raceway 11.
Sliding occurs along the generatrix directions 7 and 17.
【００１２】[0012]
【発明が解決しようとする課題】上述した様な従来の車
輪支持用転がり軸受ユニットの組立方法の場合には、次
の様な不都合を生じる可能性があった。即ち、上述した
様に内輪９を段部１３に外嵌すると、第一、第二の保持
器１８、１９により保持した複数個の円すいころ１７、
１７の転動面と、この転動面に当接する各軌道５、６、
１１、１２の表面とが、各面の母線方向に擦れ合う。こ
の為、これら各面同士の当接部から前述したグリース等
の潤滑剤が退避し、これら各当接部が金属接触に近い状
態となり、これら各当接部の摩擦係数が大きくなる。こ
の為、上記内輪９を段部１３に外嵌したり、上記かしめ
部１４により上記内輪９の端面を押圧する際に、上記各
当接部で滑らかな滑りが行なわれなくなり、上記車輪支
持用転がり軸受ユニットの内部隙間の値が所望値通りに
ならなくなる。例えば、この内部隙間を負とすべき場合
にも、正の内部隙間のままとなり、各列の円すいころ軸
受３、４に所望の予圧を付与できなくなる可能性があ
る。In the conventional method of assembling a rolling bearing unit for supporting a wheel as described above, the following inconvenience may occur. That is, as described above, when the inner ring 9 is fitted onto the step portion 13, the plurality of tapered rollers 17 held by the first and second holders 18 and 19,
17 and the respective tracks 5, 6,
The surfaces 11 and 12 rub against each other in the generatrix direction of each surface. Therefore, the lubricant such as the grease described above is retracted from the abutting portions of the respective surfaces, and the respective abutting portions are in a state close to the metal contact, and the friction coefficient of the respective abutting portions is increased. Therefore, when the inner ring 9 is externally fitted to the step portion 13 or when the end surface of the inner ring 9 is pressed by the caulking portion 14, smooth sliding does not occur at the respective contact portions, and the wheel support The value of the internal clearance of the rolling bearing unit will not be as desired. For example, even when this internal clearance is to be negative, the internal clearance remains positive, and it may not be possible to apply a desired preload to the tapered roller bearings 3 and 4 in each row.
【００１３】特に、図１に示した車輪支持用転がり軸受
ユニットの様に、複数個の転動体が円すいころ１７、１
７である場合には、これら各円すいころ１７、１７の中
心軸が正規の自転軸に対して傾くスキューが発生する
と、上述した様な問題が顕著になる。何れにしても、車
輪用転がり軸受ユニットの内部隙間が所望値からずれる
と、この車輪用転がり軸受ユニットが所期の性能を発揮
できなくなる為、好ましくない。本発明の組立方法は、
上述の様な事情に鑑みて、車輪支持用転がり軸受ユニッ
トの内部隙間を適正値に設定できる様にすべく発明した
ものである。In particular, as in the case of the wheel bearing rolling bearing unit shown in FIG.
In the case of 7, when the skew occurs in which the central axis of each of the tapered rollers 17, 17 is inclined with respect to the normal rotation axis, the above-described problem becomes remarkable. In any case, if the internal clearance of the wheel rolling bearing unit deviates from a desired value, the wheel rolling bearing unit cannot exhibit the expected performance, which is not preferable. The assembling method of the present invention includes:
In view of the above circumstances, the present invention has been made to enable the internal clearance of the wheel supporting rolling bearing unit to be set to an appropriate value.
【００１４】[0014]
【課題を解決するための手段】本発明の車輪支持用転が
り軸受ユニットの組立方法により組み立てる車輪支持用
転がり軸受ユニットは、従来から知られている車輪支持
用転がり軸受ユニットと同様に、内周面に第一、第二の
外輪軌道を形成した外径側軌道輪部材と、外周面に第
一、第二の内輪軌道を形成した内径側軌道輪部材と、こ
れら第一、第二の内輪軌道と上記第一、第二の外輪軌道
との間にそれぞれ複数個ずつ転動自在に設けた転動体と
を備える。そして、上記内径側軌道輪部材は、その外周
面に直接又は別の内輪を介して上記第一の内輪軌道を形
成した軸部材と、その外周面に上記第二の内輪軌道を形
成した内輪とから成る。又、この内輪は、上記軸部材の
端部に圧入外嵌し、更にこの軸部材の端部に形成した円
筒部を直径方向外方に塑性変形させる事で形成したかし
め部によりその軸方向端面を抑え付けられる事で、上記
軸部材に対し支持固定されている。The wheel supporting rolling bearing unit assembled by the method for assembling a wheel supporting rolling bearing unit according to the present invention has an inner peripheral surface similar to a conventionally known wheel supporting rolling bearing unit. An outer diameter raceway member having first and second outer raceways formed therein; an inner raceway race member having first and second inner raceways formed on an outer peripheral surface; and a first and second inner raceway races. And a plurality of rolling elements provided between the first and second outer raceways so as to freely roll. And the above-mentioned inner diameter side raceway member, the shaft member which formed the first inner raceway directly or through another inner raceway on the outer peripheral surface, and the inner raceway which formed the second inner raceway on the outer peripheral surface thereof Consists of The inner ring is press-fitted onto the end of the shaft member, and furthermore, a cylindrical portion formed at the end of the shaft member is plastically deformed radially outward by a caulking portion formed by an axial end face thereof. Is supported and fixed to the shaft member.
【００１５】この様な車輪用軸受ユニットを組み立てる
際に、先ず、上記軸部材の周囲に上記外径側軌道輪部材
を配置しつつ、上記第一の内輪軌道と上記第一の外輪軌
道との間に上記複数個の転動体を設ける。次いで、上記
内輪を上記軸部材の端部に、複数個の転動体を上記第二
の内輪軌道と上記第二の外輪軌道との間に設置しつつ外
嵌する。そして、最後に、上記円筒部を直径方向外方に
塑性変形させて上記かしめ部を形成し、このかしめ部に
より上記内輪の軸方向端面を抑え付ける。When assembling such a wheel bearing unit, first, while arranging the outer raceway ring member around the shaft member, the first inner raceway and the first outer raceway are connected to each other. The plurality of rolling elements are provided between them. Next, the inner ring is fitted around the end of the shaft member while a plurality of rolling elements are placed between the second inner ring track and the second outer ring track. Finally, the cylindrical portion is plastically deformed radially outward to form the caulked portion, and the caulked portion suppresses the axial end face of the inner ring.
【００１６】特に、本発明の車輪支持用軸受ユニットの
組立方法に於いては、上記内輪を上記軸部材の端部に外
嵌する作業と、上記かしめ部により上記内輪の軸方向端
面を抑え付ける作業とのうちの少なくとも一方の作業
を、上記内径側軌道輪部材と上記外径側軌道輪部材とを
相対的に回転若しくは揺動させつつ行なう。In particular, in the method for assembling a bearing unit for supporting a wheel according to the present invention, the operation of externally fitting the inner race to the end of the shaft member, and the axial end surface of the inner race are suppressed by the caulking portion. At least one of the operations is performed while relatively rotating or swinging the inner diameter side bearing ring member and the outer diameter side bearing ring member.
【００１７】[0017]
【作用】上述した様な本発明の車輪支持用転がり軸受ユ
ニットの組立方法によれば、車輪支持用転がり軸受ユニ
ットの内部隙間を所望の値にしつつ組立作業を行なえ
て、この車輪支持用転がり軸受ユニットに所期の性能を
発揮させる事ができる。According to the method for assembling a rolling bearing unit for supporting a wheel of the present invention as described above, the assembling work can be performed while the internal clearance of the rolling bearing unit for supporting a wheel is set to a desired value. The unit can exhibit the expected performance.
【００１８】[0018]
【発明の実施の形態】図１〜２は、本発明の実施の形態
の第１例を示している。尚、図１に示した車輪支持用転
がり軸受ユニットの構造に就いては前述した通りである
から、この車輪支持用転がり軸受ユニットの構造に就い
ての説明は省略若しくは簡略にし、以下、本例の特徴部
分である、組立方法に就いて説明する。尚、以下に説明
する組立作業に先立って、複数個の円すいころ１７、１
７の転動面、並びに第一、第二の内輪、外輪各軌道１
１、１２、５、６には、グリース等の潤滑剤を塗布して
おく。先ず、ハブ本体８の周囲に外輪１を配置しつつ、
この外輪１の一端寄り部分（図１の左端寄り部分、図２
の下端寄り部分）の内周面に形成した第一の外輪軌道５
と上記ハブ本体８の中間部外周面に形成した第一の内輪
軌道１１との間に、第一の保持器１８により保持した複
数個の円すいころ１７、１７を組み付ける。これと共
に、これら各円すいころ１７、１７を設置した空間２１
の一端開口部を塞ぐ状態でシールリング２０を装着す
る。ここまでの組立方法は、前述した従来の組立方法の
場合と同様である。1 and 2 show a first embodiment of the present invention. Since the structure of the wheel supporting rolling bearing unit shown in FIG. 1 is as described above, the description of the structure of the wheel supporting rolling bearing unit is omitted or simplified. The assembling method, which is a characteristic part of the above, will be described. Prior to the assembly work described below, a plurality of tapered rollers 17, 1
7 rolling surfaces, and first and second inner and outer raceways 1
Lubricant such as grease is applied to 1, 12, 5 and 6. First, while arranging the outer ring 1 around the hub body 8,
A portion near one end of the outer ring 1 (a portion near the left end in FIG. 1, FIG. 2)
Outer ring raceway 5 formed on the inner peripheral surface of
A plurality of tapered rollers 17, 17 held by a first holder 18 are assembled between the first inner raceway 11 formed on the outer peripheral surface of the intermediate portion of the hub body 8. At the same time, the space 21 where these tapered rollers 17, 17 are installed
The seal ring 20 is attached in a state where one end of the opening is closed. The assembling method up to this point is the same as the above-described conventional assembling method.
【００１９】次いで、前述した従来の組立方法の場合と
同様に、内輪９の外周面に形成した第二の内輪軌道１２
の周囲に、第二の保持器１９により保持した複数個の円
すいころ１７、１７を配置した状態で、上記内輪９を上
記ハブ本体８の他端部（図１の右端部、図２の上端部）
外周面に形成した段部１３に締り嵌めで外嵌（圧入）す
る。特に、本例の組立方法の場合、上記内輪９を上記段
部１３に外嵌する作業を、この内輪９及び上記ハブ本体
８と上記外輪１とを、相対的に揺動（往復回転）若しく
は回転（一方向回転）させつつ行なう。この為に、図示
の例では、上記ハブ本体８を作業台２４等の上面に支持
した状態で、上記外輪１をこのハブ本体８に対して揺動
（ハブ本体８を中心に往復回転）させる様にしている。
この様に外輪１を揺動させつつ、上記内輪９を上記段部
１３に、この内輪９の他端面に突き当てた圧入治具２５
によりこの内輪９の一端面が上記ハブ本体８の外周面に
形成した段差面１５に突き当たるまで外嵌する。Next, as in the case of the above-mentioned conventional assembling method, the second inner ring raceway 12 formed on the outer peripheral surface of the inner ring 9 is formed.
In a state in which a plurality of tapered rollers 17, 17 held by a second retainer 19 are arranged around the inner ring 9, the inner ring 9 is connected to the other end of the hub body 8 (right end in FIG. 1, upper end in FIG. 2). Part)
It is externally fitted (press-fitted) to the step 13 formed on the outer peripheral surface by interference fit. In particular, in the case of the assembling method of this example, the operation of fitting the inner ring 9 to the step portion 13 is performed by relatively swinging (reciprocating rotation) or rotating the inner ring 9 and the hub body 8 and the outer ring 1. This is performed while rotating (one-way rotation). For this reason, in the illustrated example, the outer ring 1 is swung with respect to the hub body 8 (reciprocating rotation about the hub body 8) with the hub body 8 supported on the upper surface of the worktable 24 or the like. I am doing it.
As described above, while the outer ring 1 is oscillated, the inner ring 9 is pressed against the stepped portion 13 against the other end surface of the inner ring 9.
As a result, the inner ring 9 is externally fitted until one end surface thereof abuts a step surface 15 formed on the outer peripheral surface of the hub body 8.
【００２０】そして、この様に上記内輪９を上記段部１
３に外嵌すると共に、上記第二の保持器１９により保持
した複数個の円すいころ１７、１７の転動面を、上記外
輪１の他端寄り部内周面に形成した第二の外輪軌道６に
当接させる。この様に内輪９を段部１３に外嵌する際に
は、上記各円すいころ１７、１７の転動面と上記各軌道
５、１２の表面との当接部に、これら各面の母線方向に
亙る滑りが生じる。但し、本例の場合、この様に内輪９
を段部１３に外嵌する際に、この内輪９及び上記ハブ本
体８に対して上記外輪１を揺動させている為、上記各円
すいころ１７、１７が上記各軌道５、１２上を転動す
る。この為、これら各円すいころ１７、１７が転動する
事に基づいて、前記グリース等の潤滑剤がこれら各円す
いころ１７、１７の転動面と上記各軌道５、１２との当
接部に入り込み、これら各当接部に上記潤滑剤の膜が十
分に形成される。従って、これら各当接部に於ける潤滑
状態が良好になる。言い換えれば、本例の場合には、前
述した従来の場合の様に、これら各当接部から上記潤滑
剤が退避して、これら各当接部の接触状態が金属接触に
近い状態になる事を防止できる。又、上記各円すいころ
１７、１７が上記各軌道５、６、１１、１２上を転動す
る事により、これら各円すいころ１７、１７に調心作用
が働くので、これら各円すいころ１７、１７の中心軸が
正規の自転軸に対して傾く事を防止できる。Then, the inner ring 9 is connected to the step 1 in this manner.
3 and the rolling surfaces of the plurality of tapered rollers 17, 17 held by the second cage 19 are formed on the inner peripheral surface of the outer ring 1 near the other end. Contact. When the inner ring 9 is externally fitted to the step portion 13 in this manner, the abutting portions between the rolling surfaces of the tapered rollers 17 and 17 and the surfaces of the raceways 5 and 12 are arranged in the generatrix directions of these surfaces. Sliding occurs. However, in the case of this example, the inner ring 9
When the outer ring 1 is swung with respect to the inner ring 9 and the hub body 8 when the outer ring 1 is fitted to the step portion 13, the tapered rollers 17, 17 roll on the tracks 5, 12, respectively. Move. For this reason, based on the rolling of these tapered rollers 17, 17, the lubricant such as the grease is applied to the contact portions between the rolling surfaces of the tapered rollers 17, 17 and the tracks 5, 12. As a result, the lubricant film is sufficiently formed in these contact portions. Therefore, the lubrication state at each of these contact portions is improved. In other words, in the case of this example, as in the case of the above-described conventional case, the lubricant is evacuated from each of the contact portions, and the contact state of each of the contact portions becomes a state close to metal contact. Can be prevented. Further, since the tapered rollers 17, 17 roll on the orbits 5, 6, 11, 12, the respective tapered rollers 17, 17 are aligned, so that the tapered rollers 17, 17 are provided. Can be prevented from tilting with respect to the normal rotation axis.
【００２１】この結果、次いで、上記ハブ本体８の他端
部に設けた円筒部１６を、揺動プレス加工等により直径
方向外方に塑性変形させてかしめ部１４を形成し、この
かしめ部１４により上記内輪９の他端面を抑え付ければ
（押圧すれば）、所望の内部隙間を有する車輪支持用転
がり軸受ユニットを得られる。又、仮に上記かしめ部１
４の形成作業の際に、上記各円すいころ１７、１７の転
動面と上記各軌道５、６、１１、１２との当接部で、こ
れら各円すいころ１７、１７の母線方向に亙る滑りが生
じても、滑り摩擦力を低く抑える事ができる。この為、
上記各円すいころ１７、１７を含んで構成する、第一
列、第二列の各円すいころ軸受３、４の内部隙間を所望
の値として、必要に応じて予圧を付与できる。この結
果、これら各円すいころ軸受３、４を含む車輪支持用転
がり軸受ユニットに所期の性能を発揮させる事ができ
る。As a result, the cylindrical portion 16 provided at the other end of the hub body 8 is plastically deformed radially outward by rocking press or the like to form a caulked portion 14, and the caulked portion 14 is formed. By pressing (pressing) the other end surface of the inner ring 9 as described above, a wheel supporting rolling bearing unit having a desired internal clearance can be obtained. Also, if the caulking part 1
At the time of the forming operation, at the contact portion between the rolling surface of each of the tapered rollers 17, 17 and each of the tracks 5, 6, 11, 12, 12, the sliding of each of the tapered rollers 17, 17 in the generatrix direction. , Even if the friction occurs, the sliding frictional force can be kept low. Because of this,
A preload can be applied as necessary, with the internal clearances of the first and second rows of tapered roller bearings 3, 4 including the tapered rollers 17, 17 as desired values. As a result, the expected performance can be exhibited in the wheel supporting rolling bearing unit including the tapered roller bearings 3 and 4.
【００２２】次に、図３は、本発明の実施の形態の第２
例を示している。本例の場合、内輪９をハブ本体８の他
端部外周面に設けた段部１３に圧入外嵌するまでの組立
作業は、前述した従来の組立方法の場合と同様である。
特に、本例の場合、上記ハブ本体８の他端部に設けた円
筒部１６を直径方向外方に塑性変形させてかしめ部１４
を形成し、このかしめ部１４により上記内輪９の他端面
を抑え付ける作業を、上記ハブ本体８及び上記内輪９と
外輪１とを、相対的に揺動若しくは回転させつつ行な
う。FIG. 3 shows a second embodiment of the present invention.
An example is shown. In the case of this example, the assembling operation until the inner race 9 is press-fitted and externally fitted to the step portion 13 provided on the outer peripheral surface of the other end portion of the hub body 8 is the same as in the case of the above-described conventional assembling method.
In particular, in the case of this example, the cylindrical portion 16 provided at the other end of the hub body 8 is plastically deformed radially outward to form the caulking portion 14.
The operation of pressing the other end surface of the inner race 9 by the caulking portion 14 is performed while the hub body 8 and the inner race 9 and the outer race 1 are relatively rocked or rotated.
【００２３】この為に、図示の例では、上記ハブ本体８
を作業台２４の上面に支持した状態で、上記外輪１をこ
のハブ本体８に対し揺動させる様にしている。又、上記
かしめ部１４は、上記円筒部１６の先端部に強く押し付
けた、揺動プレス装置を構成する押型２６により形成す
る。この押型２６の先端面（図３の下端面）中央部に
は、上記円筒部１６の内側に押し込み自在な円錐台状の
凸部２７を形成し、この凸部２７の周囲に断面円弧状の
凹部２８を、この凸部２７の全周を囲む状態で形成して
いる。この様な形状の凸部２７と凹部２８とを有する押
型２６を上記円筒部１６の先端部に押し付ければ、この
円筒部１６の先端部を直径方向外方にかしめ広げて、上
記かしめ部１４を形成する事ができる。For this reason, in the illustrated example, the hub main body 8 is used.
The outer ring 1 is swung with respect to the hub main body 8 in a state where is supported on the upper surface of the work table 24. Further, the caulking portion 14 is formed by a pressing die 26 which strongly presses against the distal end portion of the cylindrical portion 16 and constitutes a swing press device. At the center of the distal end surface (lower end surface in FIG. 3) of the pressing die 26, a truncated cone-shaped convex portion 27 which can be pushed into the inside of the cylindrical portion 16 is formed. The concave portion 28 is formed so as to surround the entire circumference of the convex portion 27. When a pressing die 26 having a convex portion 27 and a concave portion 28 having such a shape is pressed against the distal end portion of the cylindrical portion 16, the distal end portion of the cylindrical portion 16 is swaged diametrically outward, and the swaged portion 14 is formed. Can be formed.
【００２４】上述の様にしてかしめ部１４を形成する本
例の場合、このかしめ部１４の形成時に、上記内輪９及
び上記ハブ本体８に対し、上記外輪１を揺動させている
為、各円すいころ１７、１７が各軌道５、６、１１、１
２上を転動する。この為、グリース等の潤滑剤がこれら
各円すいころ１７、１７の転動面と上記各軌道５、６、
１１、１２との当接部に入り込み、これら各当接部に上
記潤滑剤の膜を十分に形成して、これら各当接部に於け
る潤滑状態を良好にする。又、上記各円すいころ１７、
１７が上記各軌道５、６、１１、１２上を転動する事に
より、これら各円すいころ１７、１７に調心作用が働く
ので、これら各円すいころ１７、１７の中心軸が正規の
自転軸に対して傾く事を防止できる。従って、上記かし
め部１４により上記内輪９の他端面を押圧する際に、上
記各円すいころ１７、１７の転動面と上記各軌道５、
６、１１、１２との当接部での、これら各円すいころ１
７、１７の母線方向に亙る滑りを円滑にする。従って、
本例の場合も、上記各円すいころ１７、１７を含んで構
成する、第一列、第二列の各円すいころ軸受３、４の内
部隙間を所望の値とし、必要に応じ予圧を付与して、こ
れら各円すいころ軸受３、４を含む車輪支持用転がり軸
受ユニットに、所期の性能を発揮させる事ができる。In the case of the present embodiment in which the caulked portion 14 is formed as described above, the outer ring 1 is swung with respect to the inner ring 9 and the hub body 8 when the caulked portion 14 is formed. Tapered rollers 17, 17 are in each orbit 5, 6, 11, 1
Roll on 2 Therefore, a lubricant such as grease is applied to the rolling surface of each of the tapered rollers 17, 17 and each of the above-mentioned tracks 5, 6,.
The lubricant enters the contact portions with the contact portions 11 and 12, and the lubricant film is sufficiently formed on these contact portions to improve the lubrication state at the contact portions. In addition, each of the above tapered rollers 17,
As the roller 17 rolls on the orbits 5, 6, 11, and 12, the centering action acts on the tapered rollers 17, 17, so that the center axis of each of the tapered rollers 17, 17 is a normal rotation axis. Can be prevented. Therefore, when the caulking portion 14 presses the other end surface of the inner ring 9, the rolling surfaces of the tapered rollers 17, 17 and the tracks 5,
These tapered rollers 1 at the contact portions with 6, 11, and 12
Smooth sliding along the generatrix direction of 7 and 17 is achieved. Therefore,
Also in the case of this example, the internal clearance of each of the tapered roller bearings 3 and 4 in the first row and the second row, which includes the tapered rollers 17 and 17, is set to a desired value, and a preload is applied as necessary. Thus, the desired performance can be exhibited in the wheel supporting rolling bearing unit including the tapered roller bearings 3 and 4.
【００２５】次に、図４は、本発明の実施の形態の第３
例を示している。本例の場合も、上述した第２例の場合
と同様、内輪９を段部１３に外嵌するまでの組立作業を
前述した従来の組立方法と同様に行ない、更に、かしめ
部１４により上記内輪９の他端面を抑え付ける作業を、
この内輪９及びハブ本体８と外輪１とを、相対的に回転
させつつ行なう。この為に、本例の場合には、上記かし
め部１４をスピニング加工により形成する様にしてい
る。この様なスピニング加工を行なう為に、先ず、上記
ハブ本体８の一端部（反かしめ側部）を支持軸受２９に
より回転自在に支持すると共に、上記外輪１を図示しな
い抑え治具等により固定する。これにより、上記内輪９
及びハブ本体８が、上記外輪１の内側で回転する事を自
在とする。FIG. 4 shows a third embodiment of the present invention.
An example is shown. In the case of this example, as in the case of the above-described second example, the assembling operation until the inner ring 9 is fitted to the step portion 13 is performed in the same manner as in the above-described conventional assembling method. Work to hold down the other end of 9
The inner ring 9 and the hub body 8 and the outer ring 1 are rotated while relatively rotating. For this reason, in the case of this example, the caulking portion 14 is formed by spinning. In order to perform such a spinning process, first, one end portion (recessed side portion) of the hub body 8 is rotatably supported by a support bearing 29, and the outer ring 1 is fixed by a holding jig (not shown). . Thereby, the inner ring 9
And the hub body 8 can rotate freely inside the outer ring 1.
【００２６】そして、この様に内輪９及びハブ本体８を
支持した状態で、このハブ本体８の他端部に設けた円筒
部１６の先端部の円周方向の一部に、ロール３０の先端
寄り部を強く押し付ける。このロール３０の先端寄り部
外周面には、全周に亙り凹部３１を形成している。従っ
て、この状態で、上記内輪９及びハブ本体８と上記ロー
ル３０とを、それぞれの中心軸を中心として回転させれ
ば、上記円筒部１６の先端部を直径方向外方にかしめ広
げて、上記かしめ部１４を形成する事ができる。この様
な本例の場合も、上記かしめ部１４を上記内輪９及びハ
ブ本体８と上記外輪１とを相対回転させつつ行なうの
で、このかしめ部１４により上記内輪９の他端面を押圧
する際に、各円すいころ１７、１７の転動面と各軌道
５、６、１１、１２との当接部の潤滑状態を良好にでき
る。従って、本例の場合も、第一列、第二列の各円すい
ころ軸受３、４の内部隙間を所望の値とし、必要に応じ
予圧を付与できて、これら各列の円すいころ軸受３、４
を含む車輪支持用転がり軸受ユニットに所期の性能を発
揮させる事ができる。With the inner ring 9 and the hub body 8 thus supported, the tip of the roll 30 is attached to a part of the tip of the cylindrical portion 16 provided at the other end of the hub body 8 in the circumferential direction. Press the approaching part strongly. A concave portion 31 is formed over the entire periphery of the outer peripheral surface of the roll 30 near the leading end. Therefore, in this state, if the inner ring 9 and the hub body 8 and the roll 30 are rotated about their respective central axes, the distal end of the cylindrical portion 16 is swaged outward in the diameter direction, and The caulking part 14 can be formed. Also in the case of this example, since the caulking portion 14 is performed while the inner ring 9 and the hub body 8 and the outer ring 1 are relatively rotated, the caulking portion 14 presses the other end surface of the inner ring 9. The lubricating state of the contact portions between the rolling surfaces of the tapered rollers 17, 17 and the tracks 5, 6, 11, 12 can be improved. Therefore, also in the case of this example, the internal clearance of each of the tapered roller bearings 3 and 4 in the first row and the second row can be set to a desired value, and a preload can be applied as necessary, and the tapered roller bearings 3 and 4
The expected performance can be exhibited in the wheel bearing rolling bearing unit including the above.
【００２７】尚、上述した各例では、ハブ本体８及び内
輪９と外輪１とを相対的に揺動若しくは回転させる作業
を、この内輪９を段部１３に圧入する際にのみ（第１例
の場合）、或はかしめ部１４を形成する際にのみ（第２
〜３例の場合）行なう場合に就いて説明した。但し、本
発明は、上記ハブ本体８及び内輪９と上記外輪１とを相
対的に揺動若しくは回転させる作業を、上記内輪９を上
記段部１３に圧入する際と、上記かしめ部１４を形成す
る際との双方で行なっても良い。又、上述した各例で
は、車輪用転がり軸受ユニットを構成する各転動体が、
円すいころ１７、１７である場合に就いて述べたが、本
発明は、これら各転動体が玉である場合にも同様に適用
でき、ほぼ同様の作用・効果を得られる。In each of the above-described examples, the work of relatively swinging or rotating the hub body 8 and the inner ring 9 and the outer ring 1 is performed only when the inner ring 9 is press-fitted into the step portion 13 (first example). ) Or only when forming the caulked portion 14 (second
(3 cases) The case of performing the above has been described. However, in the present invention, the operation of relatively swinging or rotating the hub body 8 and the inner ring 9 and the outer ring 1 is performed when the inner ring 9 is press-fitted into the step portion 13 and when the caulking portion 14 is formed. It may be performed both when and when. Further, in each of the above-described examples, each rolling element constituting the wheel rolling bearing unit is
Although the case of the tapered rollers 17 has been described, the present invention can be similarly applied to a case where each of these rolling elements is a ball, and substantially the same operation and effect can be obtained.
【００２８】[0028]
【発明の効果】上述の様に本発明の車輪支持用転がり軸
受ユニットの組立方法によれば、この車輪支持用転がり
軸受ユニットを構成する複列の転がり軸受の内部隙間を
適正にできる。この為、車輪支持用転がり軸受ユニット
に、所期の性能を発揮させる事ができる。As described above, according to the method of assembling the wheel supporting rolling bearing unit of the present invention, the internal clearance of the double row rolling bearing constituting the wheel supporting rolling bearing unit can be properly adjusted. For this reason, the desired performance can be exhibited in the wheel bearing rolling bearing unit.
【図１】本発明の組立方法を適用する車輪支持用転がり
軸受ユニットの１例を示す断面図。FIG. 1 is a cross-sectional view showing one example of a wheel supporting rolling bearing unit to which the assembling method of the present invention is applied.
【図２】本発明の実施の形態の第１例を示す断面図。FIG. 2 is a sectional view showing a first example of an embodiment of the present invention.
【図３】同第２例を示す断面図。FIG. 3 is a cross-sectional view showing the second example.
【図４】同第３例を示す断面図。FIG. 4 is a sectional view showing the third example.
１ 外輪 ２ ハブ ３ 第一列の円すいころ軸受 ４ 第二列の円すいころ軸受 ５ 第一の外輪軌道 ６ 第二の外輪軌道 ７ 取付部 ８ ハブ本体 ９ 内輪 １０ フランジ １１ 第一の内輪軌道 １２ 第二の内輪軌道 １３ 段部 １４ かしめ部 １５ 段差面 １６ 円筒部 １７ 円すいころ １８ 第一の保持器 １９ 第二の保持器 ２０ シールリング ２１ 空間 ２２ 芯金 ２３ 弾性材 ２４ 作業第 ２５ 圧入治具 ２６ 押型 ２７ 凸部 ２８ 凹部 ２９ 支持軸受 ３０ ロール ３１ 凹部 DESCRIPTION OF SYMBOLS 1 Outer ring 2 Hub 3 First row tapered roller bearing 4 Second row tapered roller bearing 5 First outer ring track 6 Second outer ring track 7 Mounting part 8 Hub body 9 Inner ring 10 Flange 11 First inner ring track 12 First Second inner ring raceway 13 Stepped portion 14 Caulked portion 15 Stepped surface 16 Cylindrical portion 17 Tapered roller 18 First retainer 19 Second retainer 20 Seal ring 21 Space 22 Core metal 23 Elastic material 24 Working 25th press fitting jig 26 Stamping die 27 convex part 28 concave part 29 support bearing 30 roll 31 concave part
Claims (1)
た外径側軌道輪部材と、外周面に第一、第二の内輪軌道
を形成した内径側軌道輪部材と、これら第一、第二の内
輪軌道と上記第一、第二の外輪軌道との間にそれぞれ複
数個ずつ転動自在に設けた転動体とを備え、上記内径側
軌道輪部材は、その外周面に直接又は別の内輪を介して
上記第一の内輪軌道を形成した軸部材と、その外周面に
上記第二の内輪軌道を形成した内輪とから成り、この内
輪は、上記軸部材の端部に外嵌し、更にこの軸部材の端
部に形成した円筒部を直径方向外方に塑性変形させる事
で形成したかしめ部によりその軸方向端面を抑え付けら
れる事で、上記軸部材に対し支持固定されている車輪支
持用転がり軸受ユニットを組み立てるのに際し、先ず、
上記軸部材の周囲に上記外径側軌道輪部材を配置しつ
つ、上記第一の内輪軌道と上記第一の外輪軌道との間に
上記複数個の転動体を設置し、次いで、上記内輪を上記
軸部材の端部に、上記複数個の転動体を上記第二の内輪
軌道と上記第二の外輪軌道との間に設置しつつ外嵌し、
次いで、上記円筒部を直径方向外方に塑性変形させて上
記かしめ部を形成し、このかしめ部により上記内輪の軸
方向端面を抑え付ける車輪支持用軸受ユニットの組立方
法に於いて、上記内輪を上記軸部材の端部に外嵌する作
業と、上記かしめ部により上記内輪の軸方向端面を抑え
付ける作業とのうちの少なくとも一方の作業を、上記内
径側軌道輪部材と上記外径側軌道輪部材とを相対的に回
転若しくは揺動させつつ行なう事を特徴とする車輪支持
用転がり軸受ユニットの組立方法。An outer raceway member having first and second outer raceways formed on an inner peripheral surface; an inner raceway member having first and second inner raceways formed on an outer peripheral surface; A first and a second inner ring raceway and the first and second outer ring raceway, each comprising a plurality of rolling elements provided so as to freely roll, the inner diameter side race ring member, on its outer peripheral surface A shaft member that forms the first inner raceway directly or via another inner race, and an inner race that forms the second inner raceway on the outer peripheral surface thereof, and the inner race is provided at an end of the shaft member. Externally fitted, furthermore, a cylindrical portion formed at the end of this shaft member is plastically deformed diametrically outward, so that the axial end surface can be suppressed by a caulking portion formed, thereby supporting and fixing to the shaft member. When assembling the rolling bearing unit for wheel support,
While arranging the outer raceway ring member around the shaft member, installing the plurality of rolling elements between the first inner raceway and the first outer raceway, then, the inner race At the end of the shaft member, the plurality of rolling elements are externally fitted while being installed between the second inner raceway and the second outer raceway,
Next, in the method of assembling a wheel supporting bearing unit in which the cylindrical portion is plastically deformed diametrically outward to form the caulked portion, and the caulked portion suppresses the axial end face of the inner ring, At least one of a work of externally fitting the end of the shaft member and a work of pressing down the axial end face of the inner ring by the caulking portion is performed by the inner raceway ring member and the outer raceway ring. A method for assembling a rolling bearing unit for supporting wheels, wherein the rolling is performed while relatively rotating or swinging a member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15473799A JP2000343905A (en) | 1999-06-02 | 1999-06-02 | Assembling method for wheel-supporting rolling bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15473799A JP2000343905A (en) | 1999-06-02 | 1999-06-02 | Assembling method for wheel-supporting rolling bearing unit |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005058447A Division JP2005219741A (en) | 2005-03-03 | 2005-03-03 | Assembling method for wheel supporting roller bearing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000343905A true JP2000343905A (en) | 2000-12-12 |
| JP2000343905A5 JP2000343905A5 (en) | 2005-08-11 |
Family
ID=15590836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15473799A Pending JP2000343905A (en) | 1999-06-02 | 1999-06-02 | Assembling method for wheel-supporting rolling bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000343905A (en) |
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| JP2003021153A (en) * | 2001-07-05 | 2003-01-24 | Koyo Seiko Co Ltd | Assembly method for bearing device |
| US7121003B2 (en) * | 2002-06-24 | 2006-10-17 | Nsk Ltd. | Manufacturing method and manufacturing apparatus for wheel-support rolling bearing unit |
| CN105980168A (en) * | 2014-02-13 | 2016-09-28 | 日本精工株式会社 | Device for assembling wheel hub unit |
| WO2018159670A1 (en) | 2017-03-02 | 2018-09-07 | 日本精工株式会社 | Rotary forge device, rotary forging method, method for manufacturing hub unit bearing using rotary forging method, and vehicle manufacturing method |
| JP7031802B1 (en) * | 2020-09-24 | 2022-03-08 | 日本精工株式会社 | Caulking device and caulking method for bearing unit, hub unit bearing manufacturing method and manufacturing device, vehicle manufacturing method |
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|---|---|---|---|---|
| JP2003021153A (en) * | 2001-07-05 | 2003-01-24 | Koyo Seiko Co Ltd | Assembly method for bearing device |
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| KR20190122654A (en) | 2017-03-02 | 2019-10-30 | 닛본 세이고 가부시끼가이샤 | Rocking forging device, rocking forging method, hub unit bearing manufacturing method using the rocking forging method and vehicle manufacturing method |
| US11103917B2 (en) | 2017-03-02 | 2021-08-31 | Nsk Ltd. | Orbital forging device, method for orbital forging, method for manufacturing hub unit bearing using method for orbital forging, and method for manufacturing vehicle |
| US11904383B2 (en) | 2017-03-02 | 2024-02-20 | Nsk Ltd. | Orbital forging device, method for orbital forging, method for manufacturing hub unit bearing using method for orbital forging, and method for manufacturing vehicle |
| JP7031802B1 (en) * | 2020-09-24 | 2022-03-08 | 日本精工株式会社 | Caulking device and caulking method for bearing unit, hub unit bearing manufacturing method and manufacturing device, vehicle manufacturing method |
| WO2022064770A1 (en) | 2020-09-24 | 2022-03-31 | 日本精工株式会社 | Swaging device and swaging method for bearing unit, hub unit bearing manufacturing method and manufacturing device, and vehicle manufacturing method |
| KR20230072473A (en) | 2020-09-24 | 2023-05-24 | 닛본 세이고 가부시끼가이샤 | Caulk device and method for bearing units, method and method for manufacturing hub unit bearings, and method for manufacturing vehicles |
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