JP5408271B2 - Manufacturing method of wheel bearing rolling bearing unit - Google Patents

Manufacturing method of wheel bearing rolling bearing unit Download PDF

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JP5408271B2
JP5408271B2 JP2012023704A JP2012023704A JP5408271B2 JP 5408271 B2 JP5408271 B2 JP 5408271B2 JP 2012023704 A JP2012023704 A JP 2012023704A JP 2012023704 A JP2012023704 A JP 2012023704A JP 5408271 B2 JP5408271 B2 JP 5408271B2
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stationary
hub
outer ring
support flange
axial direction
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JP2012153360A (en
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寛朗 石川
康誉 鈴木
成人 大竹
徹 竹原
清孝 平田
章史 堀家
達男 若林
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NSK Ltd
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Description

この発明は、自動車の車輪並びにディスクブレーキを構成するディスクを懸架装置に対して回転自在に支持すると共に、このディスクブレーキを構成するキャリパ又はサポートを支持する車輪支持用転がり軸受ユニットの製造方法の改良に関する。 The present invention improves the manufacturing method of a wheel bearing rolling bearing unit that supports a wheel of an automobile and a disk constituting a disk brake so as to be rotatable with respect to a suspension device, and supports a caliper or a support constituting the disk brake. About.

自動車の車輪を構成するホイール及びディスクブレーキを構成するディスクは、懸架装置を構成するナックルに対し、車輪支持用転がり軸受ユニットにより回転自在に支持する。一方、上記ディスクブレーキを構成するキャリパ又はサポートは、上記ナックルに支持固定するのが一般的である。これに対して、近年、自動車への組み付け性や取り扱い性を向上させる観点より、上記キャリパ又はサポートを、車輪支持用転がり軸受ユニットを構成する静止側部材に支持固定する事が考えられている。例えば特許文献１には、車輪支持用転がり軸受ユニットを構成する静止側部材である外輪の外周面に、上記キャリパ又はサポートを支持固定する為のフランジを設けた構造が記載されている。   A wheel constituting a wheel of an automobile and a disc constituting a disc brake are rotatably supported by a knuckle constituting a suspension device by a wheel bearing rolling bearing unit. On the other hand, a caliper or a support constituting the disc brake is generally supported and fixed to the knuckle. On the other hand, in recent years, it has been considered to support and fix the caliper or the support to a stationary member constituting the wheel bearing rolling bearing unit from the viewpoint of improving the ease of assembly and handling to an automobile. For example, Patent Document 1 describes a structure in which a flange for supporting and fixing the caliper or support is provided on the outer peripheral surface of an outer ring, which is a stationary member constituting a wheel support rolling bearing unit.

図１６〜１７は、上記特許文献１に記載された公知の構造とは異なるが、本発明者が先に考えた、静止側部材の外周面に上記キャリパ又はサポートを支持固定する為のフランジを設けた車輪支持用転がり軸受ユニットの１例を示している。この車輪支持用転がり軸受ユニットは、静止側部材である外輪１と、回転側部材であるハブ２と、それぞれが転動体である複数個の玉３、３とを備える。このうちの外輪１は、内周面に複列の外輪軌道４ａ、４ｂを有する。又、外周面の内端（軸方向に関して「内」とは、自動車への組み付け状態で車両の幅方向中央側を言い、図８、１２、１６〜１８の右側、図１〜７、９〜１１、１３、１５の下側、及び、図１４の上側。反対に、車両の幅方向外側となる、図８、１２、１６〜１８の左側、図１〜７、９〜１１、１３、１５の上側、及び、図１４の下側を、軸方向に関して「外」と言う。本明細書及び特許請求の範囲の全体で同じ。）寄り部分に、上記ナックル（図示せず）に結合固定する為の結合フランジ５を、同じく中間部（この結合フランジ５の軸方向外側に隣接する部分）の円周方向一部に、上記キャリパ又はサポート（図示せず）を支持固定する為の静止側支持フランジ６を、それぞれ有する。   16-17 differ from the well-known structure described in the said patent document 1, However, The flange for supporting and fixing the said caliper or support to the outer peripheral surface of the stationary side member which the inventor considered previously is carried out. An example of the provided wheel bearing rolling bearing unit is shown. This wheel-supporting rolling bearing unit includes an outer ring 1 that is a stationary member, a hub 2 that is a rotating member, and a plurality of balls 3 and 3 each of which is a rolling element. Out of these, the outer ring 1 has double-row outer ring raceways 4a and 4b on the inner peripheral surface. Further, the inner end of the outer peripheral surface ("inner" with respect to the axial direction means the center side in the width direction of the vehicle in the assembled state to the automobile, and the right side of FIGS. 11, 13, 15 lower side and upper side of Fig. 14. Conversely, left side of Fig. 8, 12, 16-18, Fig. 1-7, 9-11, 13, 15 which is the outer side in the width direction of the vehicle. 14 and the lower side of FIG. 14 are referred to as “outside” with respect to the axial direction.This is the same throughout this specification and claims.) A stationary side support for fixing and fixing the caliper or the support (not shown) to the circumferential portion of the intermediate portion (a portion adjacent to the outside of the coupling flange 5 in the axial direction). Each has a flange 6.

又、上記ハブ２は、ハブ本体７と、このハブ本体７の内端部に外嵌固定した内輪８とから成る。この様なハブ２は、外周面の外端寄り部分に上記ホイール及びディスク９（後述する図１８参照）を支持固定する為の回転側支持フランジ１０を、同じく中間部乃至内端部に複列の内輪軌道１１ａ、１１ｂを、それぞれ有する。尚、このうちの回転側支持フランジ１０及び外側の内輪軌道１１ａは、上記ハブ本体７の外周面に、内側の内輪軌道１１ｂは上記内輪８の外周面に、それぞれ形成している。又、上記回転側支持フランジ１０の円周方向複数個所には、それぞれ当該個所を軸方向に貫通する圧入孔１２を設けると共に、これら各圧入孔１２、１２の内側にそれぞれスタッド１３を圧入固定している。又、上記各玉３、３は、上記各外輪軌道４ａ、４ｂと上記各内輪軌道１１ａ、１１ｂとの間にそれぞれ複数個ずつ、転動自在に設けている。尚、図示の例では、転動体として玉３、３を使用しているが、重量が嵩む自動車用の転がり軸受ユニットの場合には、転動体として円すいころを使用する場合もある。   The hub 2 includes a hub body 7 and an inner ring 8 that is fitted and fixed to the inner end of the hub body 7. In such a hub 2, the rotation side support flange 10 for supporting and fixing the wheel and the disk 9 (see FIG. 18 described later) is fixed to the outer end portion of the outer peripheral surface. Inner ring raceways 11a and 11b. Of these, the rotation side support flange 10 and the outer inner ring raceway 11 a are formed on the outer peripheral surface of the hub body 7, and the inner inner ring raceway 11 b is formed on the outer peripheral surface of the inner ring 8. In addition, press-fitting holes 12 penetrating in the axial direction are provided at a plurality of locations in the circumferential direction of the rotation-side support flange 10, and studs 13 are press-fitted and fixed inside the press-fitting holes 12 and 12, respectively. ing. Further, a plurality of balls 3, 3 are provided between the outer ring raceways 4a, 4b and the inner ring raceways 11a, 11b, respectively, so that they can roll. In the illustrated example, balls 3 and 3 are used as rolling elements. However, in the case of a rolling bearing unit for an automobile that is heavy in weight, a tapered roller may be used as the rolling element.

上述の様に構成する車輪支持用転がり軸受ユニットを自動車に組み付ける場合には、上記結合フランジ５の内側面を上記ナックルの側面に接触させた状態で、この結合フランジ５をこのナックルに結合固定する。又、上記回転側支持フランジ１０の軸方向両側面のうちで上記車輪並びにディスクを取り付ける為の外側面である回転側取付面１４に、図１８に示す様に、上記ディスク９の片側面内径寄り部分を接触させた状態で、上記回転側支持フランジ１０にこのディスク９及び上記ホイールを、上記複数のスタッド１３とナット（図示せず）とにより支持固定する。又、上記ディスクブレーキがフローティングキャリパ型である場合には、キャリパを支持するサポートを、上記ディスクブレーキが対向ピストン型である場合にはキャリパを、上記静止側支持フランジ６の外側面である静止側取付面１５に接触させた状態で取り付ける。そして、上記ディスク９と上記キャリパとを組み合わせる事により、上記ディスクブレーキを構成する。制動時には、上記ディスクを挟んで設けた、上記サポート又は上記キャリパに組み付けた１対のパッドを、このディスクの両側面に押し付ける。尚、図示の車輪支持用転がり軸受ユニットは従動輪（ＦＦ車の後輪、ＦＲ車の前輪）用であるが、駆動輪（ＦＦ車の前輪、ＦＲ車の後輪、４ＷＤ車の全車輪）用の車輪支持用転がり軸受ユニットの場合には、ハブの中心部にスプライン孔を設ける。そして、自動車への組み付け時に、このスプライン孔に等速ジョイントのスプライン軸（駆動軸）をスプライン係合させる。 When the rolling bearing unit for supporting a wheel configured as described above is assembled to an automobile, the coupling flange 5 is coupled and fixed to the knuckle while the inner surface of the coupling flange 5 is in contact with the side surface of the knuckle. . Further, as shown in FIG. 18, as shown in FIG. 18, the inner diameter of one side surface of the disk 9 is closer to the rotation side mounting surface 14, which is the outer side surface for mounting the wheel and the disk, on both side surfaces in the axial direction of the rotation side support flange 10. The disk 9 and the wheel are supported and fixed to the rotation-side support flange 10 by the plurality of studs 13 and nuts (not shown) while the portions are in contact with each other. Further, when the disc brake is a floating caliper type, a support for supporting the caliper is provided. When the disc brake is an opposed piston type, the caliper is provided on the stationary side which is the outer surface of the stationary side support flange 6. It attaches in the state contacted to the attachment surface 15. The disk brake is configured by combining the disk 9 and the caliper. At the time of braking, a pair of pads mounted on the support or the caliper provided with the disk interposed therebetween are pressed against both side surfaces of the disk. Although the illustrated wheel support rolling bearing unit is for a driven wheel (rear wheel of FF vehicle, front wheel of FR vehicle), driving wheel (front wheel of FF vehicle, rear wheel of FR vehicle, all wheels of 4WD vehicle) In the case of a rolling bearing unit for supporting a wheel, a spline hole is provided at the center of the hub. Then, the spline shaft (drive shaft) of the constant velocity joint is spline-engaged with the spline hole when assembled to the automobile.

ところで、上述した様な静止側支持フランジ６を有し、上記ディスク９と組み合わされた状態で使用される車輪支持用転がり軸受ユニットを製造する場合に従来は、上記静止側取付面１５の仕上加工と上記回転側取付面１４の仕上加工とを、それぞれ別個独立に（直接的な関連性を持たせる事なく）行なっていた。上記静止側取付面１５の仕上加工と、上記ディスク９の径方向外半部の両側面であって互いに平行な１対の制動用摩擦面１６、１６との仕上加工に就いても同様である。ところが、この様に静止側取付面１５の仕上加工と、上記回転側取付面１４或いは上記両制動用摩擦面１６、１６の仕上加工をそれぞれ別個独立に行なうと、これら各面１４、１５、１６の面精度（例えば、平面度や中心軸に対する直角度）を十分に確保できても、完成後にこれら各面１４、１５、１６同士の相対精度（例えば平行度）を十分に確保できなくなる可能性がある。   By the way, when manufacturing a rolling bearing unit for supporting a wheel that has the stationary support flange 6 as described above and is used in combination with the disk 9, conventionally, the finishing processing of the stationary mounting surface 15 is performed. And the finishing of the rotating side mounting surface 14 are performed separately and independently (without direct relation). The same applies to the finishing of the stationary side mounting surface 15 and the finishing of the pair of braking friction surfaces 16, 16 that are parallel to each other on both sides of the radially outer half of the disk 9. . However, when the finishing process for the stationary side mounting surface 15 and the finishing process for the rotating side mounting surface 14 or the braking friction surfaces 16 and 16 are performed separately and independently, the respective surfaces 14, 15, 16 Even if sufficient surface accuracy (for example, flatness and perpendicularity with respect to the central axis) can be ensured, the relative accuracy (for example, parallelism) between these surfaces 14, 15, 16 may not be sufficiently ensured after completion. There is.

例えば、上記回転側、静止側両取付面１４、１５同士の平行度、或いは、この静止側取付面１５と上記両制動用摩擦面１６、１６との平行度が十分に確保されていない場合には、これら両制動用摩擦面１６、１６と、上記静止側取付面１５に取り付けたサポート又はキャリパとの、互いの位置関係を良好に（所望通りに）できなくなる。この結果、上記両制動用摩擦面１６、１６と前記１対のパッドとの接触状態が不均一になる。そして、この不均一の度合いが大きくなると、制動時に、ジャダーと呼ばれる、異音を伴った振動が発生し易くなる。従って、この様なジャダーの発生を抑えられる様にすべく、上記回転側、静止側両取付面１４、１５同士の平行度、延いては、この静止側取付面１５と上記両制動用摩擦面１６、１６との平行度を十分に確保できる製造方法を実現する事が望まれる。   For example, when the parallelism between the rotating side and stationary side mounting surfaces 14 and 15 or the parallelism between the stationary side mounting surface 15 and the braking friction surfaces 16 and 16 is not sufficiently secured. Therefore, the positional relationship between the braking friction surfaces 16 and 16 and the support or caliper attached to the stationary attachment surface 15 cannot be improved (as desired). As a result, the contact state between the braking friction surfaces 16 and 16 and the pair of pads becomes uneven. If the degree of non-uniformity increases, vibration with abnormal noise, called judder, is likely to occur during braking. Therefore, in order to suppress the occurrence of such judder, the parallelism between the rotating side and stationary side mounting surfaces 14 and 15, that is, the stationary side mounting surface 15 and the braking friction surfaces. It is desired to realize a manufacturing method capable of sufficiently ensuring parallelism with 16,16.

尚、本発明に関連する他の先行技術として、特許文献２に記載された車輪支持用転がり軸受ユニットの製造方法がある。この特許文献２に記載された製造方法は、車輪支持用転がり軸受ユニットを構成する静止側部材と回転側部材と複数個の転動体とを組み立てた後、静止側部材に対して回転側部材を回転させながら、ディスクを取り付ける面である回転側取付面に、平面加工である旋削加工を施すと言うものである。この様な製造方法を実施すれば、上記回転側取付面の回転時のアキシアル方向の振れを抑える事ができる為、この回転側取付面に取り付ける上記ディスクの、アキシアル方向の振れに基づくジャダーの発生を抑制できる。但し、上記特許文献２には、実施の対象として、キャリパ又はサポートを支持固定する為の静止側支持フランジを備えた車輪支持用転がり軸受ユニットは記載されていない。即ち、上記特許文献２に記載された製造方法は、上記静止側支持フランジを備えた車輪支持用転がり軸受ユニットを実施の対象とし、且つ、この静止側支持フランジの側面である静止側取付面と、上記回転側取付面或いはディスクの制動用摩擦面との平行度を確保すると言った事は、意図してはいない。   As another prior art related to the present invention, there is a method of manufacturing a wheel-supporting rolling bearing unit described in Patent Document 2. In the manufacturing method described in Patent Document 2, after assembling a stationary member, a rotating member, and a plurality of rolling elements constituting a wheel supporting rolling bearing unit, the rotating member is attached to the stationary member. The rotating side mounting surface, which is the surface to which the disk is mounted, is subjected to a turning process that is a plane process while rotating. By implementing such a manufacturing method, it is possible to suppress axial deflection during rotation of the rotating side mounting surface, so that judder is generated due to axial deflection of the disk mounted on the rotating side mounting surface. Can be suppressed. However, Patent Document 2 does not describe a wheel bearing rolling bearing unit including a stationary side support flange for supporting and fixing a caliper or a support as an object of implementation. That is, the manufacturing method described in Patent Document 2 is intended to implement a rolling bearing unit for wheel support including the stationary side support flange, and a stationary side mounting surface that is a side surface of the stationary side support flange. It is not intended that the parallelism with the rotating side mounting surface or the braking friction surface of the disk is ensured.

又、特許文献３には、車輪支持用転がり軸受ユニットを構成する、静止側部材と、回転側部材と、複数個の転動体と、ディスクとを組み立てた後、静止側部材に対して回転側部材及びディスクを回転させながら、このディスクに設けた１対の制動用摩擦面に、平面加工である旋削加工を施す、車輪支持用転がり軸受ユニットに関する製造方法が記載されている。この様な製造方法を実施すれば、上記各制動用摩擦面の回転時のアキシアル方向の振れを抑える事ができる為、この様なアキシアル方向の振れに基づくジャダーの発生を抑制できる。但し、上記特許文献３にも、実施の対象として、キャリパ又はサポートを支持固定する為の静止側支持フランジを備えたディスク付の車輪支持用転がり軸受ユニットは記載されていない。即ち、上記特許文献３に記載された製造方法にしても、上述した特許文献２に記載された製造方法と同様に、上記静止側支持フランジを備えた車輪支持用転がり軸受ユニットを実施の対象としてはおらず、従って、この静止側支持フランジの側面である取付面と上記１対の制動用摩擦面との平行度を確保すると言った事は、意図してはいない。   Further, in Patent Document 3, after assembling a stationary member, a rotating member, a plurality of rolling elements, and a disk constituting a wheel bearing rolling bearing unit, the rotating member is rotated with respect to the stationary member. A manufacturing method related to a wheel-supporting rolling bearing unit is described in which a pair of braking friction surfaces provided on the disc is turned while turning a member and the disc, and turning is performed as a planar processing. If such a manufacturing method is carried out, it is possible to suppress axial deflection during rotation of each braking friction surface, and therefore it is possible to suppress the occurrence of judder based on such axial deflection. However, Patent Document 3 also does not describe a wheel-supporting rolling bearing unit with a disk provided with a stationary-side support flange for supporting and fixing a caliper or a support. That is, even in the manufacturing method described in Patent Document 3, the rolling bearing unit for supporting a wheel provided with the stationary support flange is used as an object of implementation in the same manner as the manufacturing method described in Patent Document 2 described above. Therefore, it is not intended that the parallelism between the mounting surface, which is the side surface of the stationary support flange, and the pair of braking friction surfaces is ensured.

米国特許出願公開第２００３／０１６５２８０号明細書US Patent Application Publication No. 2003/0165280 特表２００３−５１４６８０号公報Special table 2003-514680 gazette 米国特許第６１５８１２４号明細書US Pat. No. 6,158,124

本発明の車輪支持用転がり軸受ユニットの製造方法は、上述の様な事情に鑑み、制動時のジャダーの発生を抑えられる様にすべく、ディスクを取り付ける回転側取付面、或いはこのディスクの制動用摩擦面と、サポート又はキャリパを取り付ける静止側取付面との、互いの平行度を十分に確保できる製造方法を実現すべく発明したものである。 In view of the circumstances as described above, the method for manufacturing a wheel bearing rolling bearing unit according to the present invention provides a rotating side mounting surface to which a disk is mounted, or a brake for this disk so as to suppress the occurrence of judder during braking. The present invention has been invented to realize a manufacturing method capable of sufficiently ensuring the parallelism between the friction surface and the stationary side mounting surface to which the support or caliper is attached.

本発明の製造方法の対象となる車輪支持用転がり軸受ユニットは、外輪と、ハブと、複数個の転動体とを備える。更に、請求項４に記載した製造方法の発明の対象となる車輪支持用転がり軸受ユニットは、これらに加えてディスクを備える。
このうちの外輪は、内周面に複列の外輪軌道を、外周面にディスクブレーキを構成するキャリパ又はサポートを支持固定する為の静止側支持フランジを、それぞれ有し、使用時に懸架装置に結合固定した状態で回転しない。
又、上記ハブは、外周面に複列の内輪軌道を有し、使用時に車輪及び上記ディスクと共に回転する。そして、上記ハブの外周面に、その軸方向外側面をこのハブの回転中心軸に対し直角方向に存在すべき回転側円輪面とした、回転側支持フランジが設けられている。
又、上記各転動体は、上記両外輪軌道と上記両内輪軌道との間に転動自在に設けられている。
更に、上記静止側支持フランジの軸方向外側面の少なくとも一部を、使用時に上記キャリパ又はサポートを取り付ける為の静止側取付面としている。 A wheel-supporting rolling bearing unit that is an object of the manufacturing method of the present invention includes an outer ring , a hub, and a plurality of rolling elements. Furthermore, the wheel-supporting rolling bearing unit which is the subject of the invention of the manufacturing method described in claim 4 includes a disk in addition to these.
Outer rings of these have double-row outer ring raceways on the inner peripheral surface and stationary support flanges on the outer peripheral surface to support and fix the calipers or supports that make up the disc brake. Do not rotate in a fixed state.
The hub has a double-row inner ring raceway on the outer peripheral surface, and rotates together with the wheel and the disk when in use. Then, the outer peripheral surface of the hub, the axially outer side and the rotary side annular surface to be present in a direction perpendicular to the rotation axis of the hub, the rotation-side support flange is provided.
Each of the rolling elements is provided between the outer ring raceway and the inner ring raceway so as to roll freely.
Furthermore, at least a part of the axially outer side surface of the stationary side support flange is a stationary side mounting surface for mounting the caliper or support in use.

そして、本発明の車輪支持用転がり軸受ユニットの製造方法のうち、請求項１に記載した車輪支持用転がり軸受ユニットの製造方法の場合には、先ず、上記静止側支持フランジの軸方向外側面を基準として、上記外輪のうちでこの静止側支持フランジの軸方向外側面よりも軸方向内側に存在する中間基準側面部分をこの軸方向外側面と平行に仕上げてから、上記外輪と上記ハブと上記各転動体とを組み立てる。その後、このハブをこの外輪に対し回転させながら、上記中間基準側面部分を基準面として、上記回転側支持フランジの軸方向外側面に平面加工を施す事により、上記静止側支持フランジの軸方向外側面に対する上記回転側支持フランジの軸方向外側面の面の平行度を向上させる。 And in the manufacturing method of the rolling bearing unit for wheel support described in Claim 1 among the manufacturing methods of the rolling bearing unit for wheel support of the present invention, first, the axial direction outer side surface of the above-mentioned stationary side support flange is formed. As a reference, after finishing an intermediate reference side surface portion, which is present on the inner side in the axial direction of the outer ring of the stationary side support flange, in parallel with the outer side surface in the axial direction, the outer ring , the hub, and the Assemble each rolling element. Thereafter, while the hub is rotated with respect to the outer ring, the outer side surface of the stationary side support flange is flattened on the outer side surface of the rotating side support flange with the intermediate reference side surface as the reference surface. The parallelism of the surface on the outer side in the axial direction of the rotation side support flange with respect to the side surface is improved.

上述の様な請求項１に記載した車輪支持用転がり軸受ユニットの製造方法を実施する場合、具体的には、例えば請求項２に記載した発明の様に、上記中間基準側面部分を、上記静止側支持フランジの軸方向内側面と、上記外輪を懸架装置に結合固定する為にこの外輪の外周面に設けた結合フランジの軸方向内側面とのうちの、何れかの内側面とする。 When carrying out the method for manufacturing a wheel-supporting rolling bearing unit described in claim 1 as described above, specifically, for example, as in the invention described in claim 2, the intermediate reference side surface portion is set to the stationary stationary side portion. The inner side surface is one of an axial inner side surface of the side support flange and an axial inner side surface of the coupling flange provided on the outer peripheral surface of the outer ring for coupling and fixing the outer ring to the suspension device.

或いは、請求項３に記載した発明の様に、上記回転側支持フランジを、車輪並びにディスクブレーキを構成するディスクを支持固定する為のものとし、上記回転側取付面の内径側端部に、この回転側取付面よりも軸方向外方に突出する位置決め筒部を設けたものとする。そして、この回転側支持フランジの軸方向外側面に設けられて、使用時に上記車輪並びにディスクを取り付ける為の回転側取付面の内径側端部に、この回転側取付面よりも軸方向外方に突出する位置決め筒部を設けたものとする。そして、上記回転側取付面に仕上加工を施す為に上記ハブを保持した状態のまま、上記位置決め筒部の外周面に、この外周面を上記ハブと同心にする仕上加工を行なう。 Alternatively, as in the third aspect of the present invention, the rotation side support flange is for supporting and fixing the disk and the disk constituting the disk brake, and the rotation side mounting surface is provided with an end of the rotation side support flange. It is assumed that a positioning cylinder portion is provided that protrudes outward in the axial direction from the rotation side mounting surface. And it is provided on the outer side in the axial direction of the rotation side support flange, and at the inner diameter side end of the rotation side mounting surface for mounting the wheel and the disk when used , more outward in the axial direction than the rotation side mounting surface. Assume that a protruding positioning cylinder is provided. Then, in the state of holding the hub in order to perform the finishing operation on the rotation side installation surface, the outer peripheral surface of the positioning tube portion, performs finishing processing to the outer peripheral surface to said hub concentric.

又、請求項４に記載した発明の場合には、上記ハブは、使用時に車輪及びディスクと共に回転するものであって、上記ディスクはこのハブの外周面に結合固定されていて、その軸方向両側面を、このハブの回転中心軸に対し直角方向に存在すべき面である回転側円輪面としている。Further, in the case of the invention described in claim 4, the hub rotates together with the wheel and the disc when in use, and the disc is coupled and fixed to the outer peripheral surface of the hub, and both sides of the hub in the axial direction. The surface is a rotating-side annular surface that should be present in a direction perpendicular to the rotation center axis of the hub.
そして、請求項４に記載した車輪支持用転がり軸受ユニットの製造方法では、上記静止側支持フランジの軸方向外側面を基準として、上記外輪のうちでこの静止側支持フランジの軸方向外側面よりも軸方向内側に存在する中間基準側面部分をこの軸方向外側面と平行に仕上げてから、上記外輪と上記ハブと上記各転動体と上記ディスクとを組み立てる。その後、上記ディスクを上記外輪に対し回転させながら、上記中間基準側面部分を基準面としてこのディスクの軸方向両側面に平面加工を施す事により、上記静止側支持フランジの軸方向外側面に対する上記ディスクの軸方向両側面の面の平行度を向上させる。And in the manufacturing method of the rolling bearing unit for wheel support described in claim 4, the axial outer side surface of the stationary side support flange is used as a reference, and the outer ring is more than the axial outer side surface of the stationary side support flange. After finishing the intermediate reference side surface portion existing on the inner side in the axial direction in parallel with the outer surface in the axial direction, the outer ring, the hub, the rolling elements, and the disc are assembled. Thereafter, while the disk is rotated with respect to the outer ring, the intermediate reference side surface portion is used as a reference surface, and both sides in the axial direction of the disk are flattened, whereby the disk with respect to the axially outer surface of the stationary support flange is formed. The parallelism of the surfaces on both sides in the axial direction is improved.

上述の請求項４に記載した発明を実施する場合に具体的には、請求項５に記載した発明の様に、前記中間基準側面部分を、上記静止側支持フランジの軸方向内側面と、上記外輪の外周面に、この外輪を懸架装置に結合固定する為に設けた結合フランジの軸方向内側面とのうちの何れかの面とする。Specifically, when the invention described in claim 4 is carried out, as in the invention described in claim 5, the intermediate reference side surface portion is arranged with the axially inner side surface of the stationary support flange, and Any one of the outer circumferential surfaces of the outer rings and the axially inner side surface of the coupling flange provided for coupling and fixing the outer ring to the suspension device.

上述の様に、本発明の車輪支持用転がり軸受ユニットの製造方法によれば、ディスクを取り付ける、回転側支持フランジの軸方向外側面、或いはこのディスクに設けた１対の制動用摩擦面と、サポート又はキャリパを取り付ける静止側取付面との、互いの平行度を十分に確保できる。具体的には、請求項１〜３に記載した製造方法によれば、静止側支持フランジの軸方向外側面に対する回転側支持フランジの軸方向外側面の平行度を向上させる事ができるし、請求項４に記載した発明によれば、静止側支持フランジの軸方向外側面に対する上記ディスクの軸方向両側面の平行度を向上させる事ができる。この為、何れの発明の場合でも、ディスクと、上記静止側取付面に取り付けるサポート又はキャリパとの、互いの位置関係を良好にできる。従って、何れの製造方法により製造した場合も、制動時に、上記ディスクに設けた上記両制動用摩擦面と、上記サポート又はキャリパに組み付けた１対のパッドとの接触状態を良好にできる。この結果、制動時にジャダーが発生するのを抑える事ができる。 As described above, according to the method of manufacturing the wheel-supporting rolling bearing unit of the present invention, the disk is attached , the axially outer surface of the rotation-side support flange , or a pair of braking friction surfaces provided on the disk, The parallelism with the stationary side mounting surface to which the support or caliper is attached can be sufficiently secured. Specifically, according to the manufacturing method described in claim 1, to be able to improve the parallelism of the outboard side surface of the rotary side support flange against axial outer surface of the stationary support flange, wherein According to the invention described in Item 4, it is possible to improve the parallelism of both side surfaces in the axial direction of the disk with respect to the outer surface in the axial direction of the stationary support flange . Therefore, in any of the inventions , the positional relationship between the disk and the support or caliper attached to the stationary attachment surface can be improved. Therefore, regardless of which manufacturing method is used, it is possible to improve the contact state between the braking friction surfaces provided on the disk and the pair of pads assembled to the support or caliper during braking. As a result, the occurrence of judder during braking can be suppressed.

又、本発明の場合、上記回転側取付面又は上記両制動用摩擦面である回転側円輪面を備えた部材（ハブ又はディスク）を、上記静止側取付面を備えた部材（外輪）に対し回転させながら、この静止側取付面を（間接的に）基準面として上記回転側円輪面に平面加工を施す為、平行度を向上させられるだけでなく、上記回転側取付面又は上記両制動用摩擦面の回転時の、アキシアル方向の振れを抑える事もできる。従って、上記回転側取付面に取り付ける上記ディスクに設けた１対の制動用摩擦面の、更には直接的にこれら両制動用摩擦面の、アキシアル方向の振れを抑える事ができ、この点からも、上記ジャダーの発生を抑える事ができる。 In the case of the present invention, a member (hub or disk) provided with the rotating side mounting surface or the rotating side annular surface which is the both braking friction surfaces is replaced with a member (outer ring) provided with the stationary side mounting surface. While rotating , the stationary side mounting surface is (indirectly) used as a reference surface to planarize the rotating side annular surface , so that not only the parallelism can be improved, but also the rotational side mounting surface or both It is also possible to suppress axial deflection during rotation of the braking friction surface. Therefore, it is possible to suppress the axial vibration of the pair of braking friction surfaces provided on the disk attached to the rotating side mounting surface, and moreover, both of these braking friction surfaces directly. The occurrence of the judder can be suppressed.

本発明に関する参考例の第１例を、車輪支持用転がり軸受ユニットの回転側取付面に仕上加工としての旋削加工を施す状態で示す断面図。Sectional drawing which shows the 1st example of the reference example regarding this invention in the state which gives the turning process as a finishing process to the rotation side attachment surface of the rolling bearing unit for wheel support. 同じく、静止側取付面に仕上加工としての旋削加工を施す状態で示す断面図。Similarly, sectional drawing shown in the state which performs the turning process as a finishing process to a stationary-side attachment surface. 本発明に関する参考例を適用可能な車輪支持用転がり軸受ユニットの別例を示す断面図。Sectional drawing which shows another example of the rolling bearing unit for wheel support which can apply the reference example regarding this invention . 本発明に関する参考例の第２例を、１対の制動用摩擦面に仕上加工としての旋削加工を施す状態で示す断面図。Sectional drawing which shows the 2nd example of the reference example regarding this invention in the state which performs the turning process as a finishing process to a pair of braking friction surfaces. 同じく、静止側取付面に仕上加工としての旋削加工を施す状態で示す断面図。Similarly, sectional drawing shown in the state which performs the turning process as a finishing process to a stationary-side attachment surface. 本発明に関する参考例を適用可能なディスク付の車輪支持用転がり軸受ユニットの別例を示す断面図。Sectional drawing which shows another example of the rolling bearing unit for wheel support with a disk which can apply the reference example regarding this invention. 本発明の実施の形態の１例を示す断面図。Sectional drawing which shows one example of embodiment of this invention. 外輪の外周面に設けた各面を加工する状態を説明する為の模式図。The schematic diagram for demonstrating the state which processes each surface provided in the outer peripheral surface of an outer ring | wheel. 本発明に関する参考例の第３例を示す断面図。Sectional drawing which shows the 3rd example of the reference example regarding this invention . 同第４例を示す断面図。Sectional drawing which shows the 4th example . 同別例を示す断面図。Sectional drawing which shows the other example. 本発明を実施する場合に留意する事項の第１例を説明する為の断面図。Sectional drawing for demonstrating the 1st example of the matter to keep in mind when implementing this invention. 同第２例を説明する為の断面図。Sectional drawing for demonstrating the 2nd example. 同じく別例を示す斜視図。The perspective view which shows another example similarly. 本発明を実施する場合に留意する事項の第３例を説明する為の断面図。Sectional drawing for demonstrating the 3rd example of the matter to keep in mind when implementing this invention. 本発明の対象となる車輪支持用転がり軸受ユニットの第１例を示す断面図。Sectional drawing which shows the 1st example of the rolling bearing unit for wheel support used as the object of this invention. 同じく、一部を省略して示す斜視図。Similarly, the perspective view which abbreviate | omits and shows a part. 本発明の対象となる車輪支持用転がり軸受ユニットの第２例を示す断面図。Sectional drawing which shows the 2nd example of the rolling bearing unit for wheel support used as the object of this invention.

［本発明に関する参考例の第１例］
図１〜２は、本発明に関する参考例の第１例を示している。尚、本参考例の特徴は、ディスクブレーキを構成するディスク９（図４〜６、１８参照）を取り付ける面である回転側支持フランジ１０の外側面（回転側取付面１４）と、同じくサポート又はキャリパ（図示せず）を取り付ける面である静止側支持フランジ６の外側面（静止側取付面１５）とに、それぞれ仕上加工としての旋削加工を施す方法にある。対象となる車輪支持用転がり軸受ユニットの基本構造等、その他の部分の構造及び作用は、前述の図１６〜１７に示した車輪支持用転がり軸受ユニットの場合と同様である。この為、同等部分には同一符号を付して、重複する説明を省略若しくは簡略にし、以下、本参考例の特徴部分を中心に説明する。 [First example of reference example of the present invention ]
1 and 2 show a first example of a reference example related to the present invention . The feature of this reference example is the same as the outer surface (rotation side mounting surface 14) of the rotation side support flange 10 which is a surface to which the disk 9 (see FIGS. 4 to 6 and 18) constituting the disk brake is mounted. In this method, the outer side surface (stationary side attachment surface 15) of the stationary side support flange 6, which is a surface to which a caliper (not shown) is attached, is turned as a finishing process. The structure and operation of other parts such as the basic structure of the subject wheel-supporting rolling bearing unit are the same as those of the wheel-supporting rolling bearing unit shown in FIGS. For this reason, the same reference numerals are given to the equivalent parts, and overlapping explanations are omitted or simplified, and the following description will focus on the characteristic parts of this reference example .

本参考例の場合には、先ず、図１に示す様に、上記回転側支持フランジ１０の円周方向複数個所に形成した圧入孔１２の内側に、それぞれスタッド１３を軸方向内側から圧入して固定すると共に、外輪１とハブ２とを、複数個の玉３、３を介して互いに組み合わせる事により、車輪支持用転がり軸受ユニットを構成する。そして、この状態で、上記回転側取付面１４に仕上加工としての旋削加工を施す作業を、上記静止側取付面１５を基準面として利用する事により行なう。この為に、本参考例の場合には、上記静止側取付面１５を支持具１７ａの側面（図１の下面）１８ａに密接させた状態で、図示しないボルトやバンド等の結合固定具により、上記静止側支持フランジ６を上記支持具１７ａに結合固定する。そして、この状態で、図示しない駆動装置により上記ハブ２を回転駆動しつつ、精密加工バイト等の工具１９ａ、１９ｂにより、上記回転側取付面１４に旋削加工を施す。具体的には、一方の工具１９ａにより、上記回転側取付面１４のうち、上記各圧入孔１２の開口部を含む円輪状部分（次述する凹部２０）よりも径方向外側部分に、旋削加工を施す。これと共に、他方の工具１９ｂにより、同じく上記円輪状部分よりも径方向内側部分に、旋削加工を施す。この様な旋削加工を施す際に、上記各工具１９ａ、１９ｂはそれぞれ、上記支持具１７ａの側面１８ａ（上記静止側取付面１５）に対し平行に移動させる。そして、この様に静止側取付面１５を基準面として回転側取付面１４に旋削加工を施す事により、この回転側取付面１４の平面度を向上させると共に、この回転側取付面１４と上記静止側取付面１５との平行度を向上させる。 In the case of this reference example , first, as shown in FIG. 1, studs 13 are respectively press-fitted from the inner side in the axial direction into the press-fitting holes 12 formed at a plurality of positions in the circumferential direction of the rotation-side support flange 10. While being fixed, the outer ring 1 and the hub 2 are combined with each other via a plurality of balls 3 and 3 to constitute a wheel bearing rolling bearing unit. In this state, the turning side mounting surface 14 is turned by using the stationary side mounting surface 15 as a reference surface. For this reason, in the case of the present reference example, the stationary side mounting surface 15 is in close contact with the side surface (the lower surface in FIG. 1) 18a of the support 17a, and a coupling fixture such as a bolt or a band (not shown) The stationary support flange 6 is coupled and fixed to the support 17a. In this state, the rotation side mounting surface 14 is turned by the tools 19a and 19b such as precision machining tools while the hub 2 is rotationally driven by a driving device (not shown). Specifically, one tool 19a is used to turn a portion on the outer side in the radial direction with respect to the annular side portion (the recessed portion 20 to be described below) including the openings of the press-fitting holes 12 on the rotating side mounting surface 14. Apply. At the same time, the other tool 19b is similarly turned to the radially inner portion of the annular portion. When performing such turning, the tools 19a and 19b are moved in parallel to the side surface 18a of the support 17a (the stationary attachment surface 15). Then, by turning the rotating side mounting surface 14 using the stationary side mounting surface 15 as a reference surface in this way, the flatness of the rotating side mounting surface 14 is improved and the rotating side mounting surface 14 and the stationary side are fixed. The degree of parallelism with the side mounting surface 15 is improved.

尚、本参考例の場合、上記回転側取付面１４のうち、上記円輪状部分は、上記各圧入孔１２に上記各スタッド１３を圧入する以前から、凹部２０としている。これにより、これら各圧入孔１２にこれら各スタッド１３を圧入する際に、上記回転側取付面１４に歪みを生じにくくすると共に、上記旋削加工の完了後に、上記円輪状部分が他の部分（上記各工具１９ａ、１９ｂにより旋削加工を施した部分）に比べて軸方向に突出するのを防止している。又、本参考例の場合には、上記各圧入孔１２に上記各スタッド１３を圧入した後に上記回転側取付面１４に旋削加工を施す為、圧入に伴ってこの回転側取付面１４に歪みが生じた場合でも、上記旋削加工によりこの歪みを解消できる。 In the case of this reference example, the annular portion of the rotation side mounting surface 14 is a recess 20 before the studs 13 are press-fitted into the press-fitting holes 12. Accordingly, when the studs 13 are press-fitted into the press-fitting holes 12, the rotation-side mounting surface 14 is less likely to be distorted, and after the turning process is completed, the ring-shaped portion is replaced with another portion (the above-described portion). It is prevented from projecting in the axial direction as compared to the part subjected to turning by the tools 19a and 19b. In the case of this reference example, since the rotation side mounting surface 14 is turned after the studs 13 are press-fitted into the press-fitting holes 12, the rotation side mounting surface 14 is distorted with the press-fitting. Even if it occurs, this distortion can be eliminated by the turning process.

上述の様にして回転側取付面１４に旋削加工を施したならば、次いで、図２に示す様に、上記静止側取付面１５に、仕上加工としての旋削加工を施す作業を、上記回転側取付面１４を基準面として利用する事により行なう。この為に、本参考例の場合には、上記回転側取付面１４を支持具１７ｂの側面（図２の下面）１８ｂに密接させた状態で、図示しないボルトやバンド（或はスタッド１３に螺合したナット）等の結合固定具により、上記回転側支持フランジ１０を上記支持具１７ｂに結合固定する。そして、この状態で、図示しない駆動装置により上記外輪１を回転駆動しつつ、精密加工バイト等の工具１９ｃにより、上記静止側取付面１５に旋削加工を施す。この旋削加工の際に、この工具１９ｃは、上記支持具１７ｂの側面１８ｂ（上記回転側取付面１４）に対し平行に移動させる。そして、この様に回転側取付面１４を基準面として静止側取付面１５に旋削加工を施す事により、この静止側取付面１５の平面度を向上させると共に、この静止側取付面１５と上記回転側取付面１４との平行度を、更に向上させる。 If the turning side mounting surface 14 has been turned as described above, then, as shown in FIG. 2, the turning side as the finishing process is applied to the stationary side mounting surface 15 as the turning side. This is done by using the mounting surface 14 as a reference surface. For this reason, in the case of the present reference example, a bolt or band (or not shown) is screwed onto the stud 13 while the rotating side mounting surface 14 is in close contact with the side surface (lower surface in FIG. 2) 18b of the support 17b. The rotary support flange 10 is coupled and fixed to the support 17b by a coupling fixture such as a combined nut). In this state, the stationary ring 15 is turned by a tool 19c such as a precision machining tool while the outer ring 1 is driven to rotate by a driving device (not shown). During the turning process, the tool 19c is moved in parallel to the side surface 18b (the rotation side mounting surface 14) of the support 17b. Then, by turning the stationary side mounting surface 15 with the rotational side mounting surface 14 as a reference surface in this way, the flatness of the stationary side mounting surface 15 is improved and the stationary side mounting surface 15 and the rotation are rotated. The degree of parallelism with the side mounting surface 14 is further improved.

上述の様に、本参考例の車輪支持用転がり軸受ユニットの製造方法の場合には、回転側、静止側両取付面１４、１５同士の平行度を良好にできる。この為、この回転側取付面１４に取り付けるディスクと、上記静止側取付面１５に取り付けるサポート又はキャリパとの、互いの位置関係を良好にできる。従って、制動時に、上記ディスクの両側面と、上記キャリパに組み付けた１対のパッドとの接触状態を良好にできる。この結果、制動時にジャダーが発生するのを抑える事ができる。又、本参考例の場合には、外輪１に対してハブ２を回転させながら、上記回転側取付面１４に旋削加工を施す為、上記両取付面１４、１５同士の平行度を良好にできるだけでなく、自動車の走行時に、この回転側取付面１４のアキシアル方向の振れを抑える（平行な状態のまま振れる事も抑える）事ができる。従って、この回転側取付面１４に取り付ける上記ディスクの両側面のアキシアル方向の振れを抑える事ができ、この点からも、上記ジャダーの発生を抑える事ができる。 As described above, in the case of the production method of the wheel supporting rolling bearing unit of the present embodiment can be rotated side, the stationary-side two mounting surfaces 14, 15 parallelism between good. For this reason, the mutual positional relationship of the disk attached to this rotation side attachment surface 14 and the support or caliper attached to the said stationary side attachment surface 15 can be made favorable. Therefore, the contact state between the both side surfaces of the disk and the pair of pads assembled to the caliper can be improved during braking. As a result, the occurrence of judder during braking can be suppressed. In the case of this reference example, the rotating side mounting surface 14 is turned while rotating the hub 2 with respect to the outer ring 1, so that the parallelism between the mounting surfaces 14 and 15 can be made as good as possible. In addition, when the vehicle is running, it is possible to suppress the swing of the rotation side mounting surface 14 in the axial direction (to suppress the swing in the parallel state). Therefore, it is possible to suppress the axial deflection of the both side surfaces of the disk attached to the rotation side attachment surface 14, and it is possible to suppress the occurrence of judder from this point.

尚、上述した参考例は、スタッド１３を、回転側支持フランジ１０に形成した圧入孔１２の内側に圧入固定する構造に関する参考例である。但し、本参考例の技術思想は、図３に示す様な構造、即ち、ホイール及びディスクロータを挿通した図示しないボルトを、回転側支持フランジ１０に形成したねじ孔２６に螺合固定する構造に対して、適用する事もできる。勿論、この場合には、回転側取付面１４の旋削加工は、上記ねじ孔２６に上記ボルトを螺合する以前の状態で行なう。 In addition, the reference example mentioned above is a reference example regarding the structure which press-fits the stud 13 inside the press-fit hole 12 formed in the rotation side support flange 10. However, the technical idea of this reference example has a structure as shown in FIG. 3, that is, a structure in which a bolt (not shown) inserted through a wheel and a disk rotor is screwed and fixed into a screw hole 26 formed in the rotation side support flange 10. On the other hand, it can be applied. Of course, in this case, the turning of the rotating side mounting surface 14 is performed in a state before the bolt is screwed into the screw hole 26.

又、上述した参考例の第１例では、回転側取付面１４に旋削加工を施した後に、静止側取付面１５に旋削加工を施したが、これとは逆に、この静止側取付面１５に旋削加工を施した後に、上記回転側取付面１４に旋削加工を施す事もできる。又、上述した参考例の第１例では、静止側取付面１５を基準面として回転側取付面１４に旋削加工を施す作業と、この回転側取付面１４を基準面として上記静止側取付面１５に旋削加工を施す作業との、双方を行なったが、本参考例の技術思想を実施する場合には、これら両作業のうちの何れか一方の作業のみを行なう様にしても良い。但し、この場合には、基準面とする取付面の平面度を、予め良好に仕上げておくのが好ましい。更に、上述した参考例の１例では、回転側、静止側各取付面１４、１５に施す仕上加工として、旋削加工を採用したが、これに代えて（或はこれに加えて）、研削加工を採用する事もできる。 In the first example of the reference example described above, the turning side mounting surface 14 is turned and then the stationary side mounting surface 15 is turned. On the contrary, the stationary side mounting surface 15 is turned. After turning, the turning side mounting surface 14 can also be turned. In the first example of the reference example described above, an operation of turning the rotating side mounting surface 14 using the stationary side mounting surface 15 as a reference surface, and the stationary side mounting surface 15 using the rotating side mounting surface 14 as a reference surface. However, when the technical idea of this reference example is implemented, only one of these two operations may be performed. However, in this case, it is preferable that the flatness of the mounting surface as the reference surface is finished well beforehand. Further, in one example of the above-described reference example , the turning process is adopted as the finishing process applied to each of the rotation side and stationary side mounting surfaces 14 and 15, but instead of (or in addition to) the grinding process. Can also be adopted.

又、上述した参考例の第１例では、外輪１の外周面のうち結合フランジ５の軸方向外側に隣接する部分に静止側支持フランジ６を形成した構造を、実施の対象とした。これに対し、前記特許文献１には、結合フランジの径方向外端部に静止側支持フランジを一体的に形成した構造が記載されている。本参考例の技術思想は、勿論、この様な特許文献１に記載された構造を対象として実施する事も可能である。更には、結合フランジの両側面のうちの軸方向内側面をナックルに対する突き当て面とし、軸方向外側面をサポート又はキャリパの取付面とする構造で、本参考例の技術思想を実施する事も可能である。 Further, in the first example of the reference example described above, a structure in which the stationary side support flange 6 is formed on the outer peripheral surface of the outer ring 1 adjacent to the outer side in the axial direction of the coupling flange 5 is an object of implementation. On the other hand, Patent Document 1 describes a structure in which a stationary side support flange is integrally formed at a radially outer end portion of a coupling flange. Needless to say, the technical idea of this reference example can also be implemented for the structure described in Patent Document 1. Furthermore, the technical idea of this reference example may be implemented with a structure in which the inner side surface in the axial direction of both side surfaces of the coupling flange is an abutting surface against the knuckle and the outer surface in the axial direction is a support or caliper mounting surface. Is possible.

［本発明に関する参考例の第２例］
図４〜５は、本発明に関する参考例の第２例を示している。尚、本参考例の特徴は、ディスク９の径方向外端部の両側面である１対の制動用摩擦面１６、１６と、静止側支持フランジ６の外側面である静止側取付面１５とに、それぞれ仕上加工としての旋削加工を施す方法にある。対象となるディスク付の車輪支持用転がり軸受ユニットの基本構造等、その他の部分の構造及び作用は、前述の図１８に示した、ディスク付の車輪支持用転がり軸受ユニットの場合と同様である。この為、同等部分には同一符号を付して、重複する説明を省略若しくは簡略にし、以下、本参考例の特徴部分を中心に説明する。 [Second Example of Reference Example of the Present Invention ]
4 to 5 show a second example of the reference example related to the present invention . The feature of this reference example is that a pair of braking friction surfaces 16, 16 that are both side surfaces of the radially outer end of the disk 9, and a stationary side mounting surface 15 that is an outer surface of the stationary side support flange 6 In addition, there is a method of performing a turning process as a finishing process. The structure and operation of other parts, such as the basic structure of the wheel support rolling bearing unit with disk, which is the object, are the same as those of the wheel support rolling bearing unit with disk shown in FIG. For this reason, the same reference numerals are given to the equivalent parts, and overlapping explanations are omitted or simplified, and the following description will focus on the characteristic parts of this reference example .

本参考例の場合には、先ず、図４に示す様に、外輪１とハブ２とを、複数個の玉３、３を介して互いに組み合わせると共に、回転側支持フランジ１０の外側面に上記ディスク９を、１乃至複数本のねじ２１で結合固定する事により、ディスク付の車輪支持用転がり軸受ユニットを構成する。更に、上記回転側支持フランジ１０の各圧入孔１２に圧入固定し、且つ、上記ディスク９の各通孔３８に挿通したスタッド１３の雄ねじ部に、それぞれ抑えナット２５を螺合し、更に締め付ける。そして、これら各抑えナット２５の締結力により、上記ディスク９を上記回転側支持フランジ１０の外側面に抑え付ける事で、この回転側支持フランジ１０に対する上記ディスク９の結合強度を十分に確保する。 In the case of this reference example , first, as shown in FIG. 4, the outer ring 1 and the hub 2 are combined with each other via a plurality of balls 3, 3, and the disk is mounted on the outer surface of the rotation side support flange 10. 9 is coupled and fixed by one or a plurality of screws 21 to constitute a wheel bearing rolling bearing unit with a disk. Further, press-fitting nuts 25 are respectively screwed into the male screw portions of the studs 13 which are press-fitted and fixed in the respective press-fitting holes 12 of the rotation side support flange 10 and are inserted into the respective through-holes 38 of the disk 9 and further tightened . The disk 9 is pressed against the outer surface of the rotation-side support flange 10 by the fastening force of each of the holding nuts 25, thereby sufficiently securing the coupling strength of the disk 9 to the rotation-side support flange 10.

そして、この状態で、上記ディスク９に設けた１対の制動用摩擦面１６、１６に仕上加工としての旋削加工を施す作業を、上記静止側取付面１５を基準面として利用する事により行なう。この為に、本参考例の場合には、上記静止側取付面１５を支持具２３ａの側面（図４の下面）２２ａに密接させた状態で、図示しないボルトやバンド等の結合固定具により、上記静止側支持フランジ６を上記支持具２３ａに支持固定する。そして、この状態で、図示しない駆動装置により上記ハブ２を回転駆動しつつ、精密加工バイト等の工具２４ａ、２４ｂにより、上記両制動用摩擦面１６、１６に旋削加工を施す。この様な旋削加工を施す際に、上記各工具２４ａ、２４ｂはそれぞれ、上記支持具２３ａの側面２２ａ（上記静止側取付面１５）に対し平行に移動させる。そして、この様に静止側取付面１５を基準面として１対の制動用摩擦面１６、１６に旋削加工を施す事により、これら両制動用摩擦面１６、１６の平面度を向上させると共に、これら両制動用摩擦面１６、１６と上記静止側取付面１５との平行度を向上させる。 In this state, the pair of braking friction surfaces 16 and 16 provided on the disk 9 are subjected to a turning process as a finishing process by using the stationary side mounting surface 15 as a reference surface. For this reason, in the case of this reference example, the stationary side mounting surface 15 is in close contact with the side surface 22a of the support 23a (the lower surface in FIG. 4) 22a. The stationary support flange 6 is supported and fixed to the support 23a. In this state, while turning the hub 2 by a drive device (not shown), the brake friction surfaces 16 and 16 are turned by the tools 24a and 24b such as precision machining tools. When performing such turning, the tools 24a and 24b are moved in parallel to the side surface 22a (the stationary side mounting surface 15) of the support 23a. Then, by turning the pair of braking friction surfaces 16 and 16 with the stationary side mounting surface 15 as a reference surface in this way, the flatness of both the braking friction surfaces 16 and 16 is improved, and these The parallelism between the braking friction surfaces 16 and 16 and the stationary mounting surface 15 is improved.

上述の様にして両制動用摩擦面１６、１６に旋削加工を施したならば、次いで、図５に示す様に、上記静止側取付面１５に仕上加工としての旋削加工を施す作業を、軸方向外側の制動用摩擦面１６を基準面として利用する事により行なう。この為に、本参考例の場合には、上記軸方向外側の制動用摩擦面１６を支持具２３ｂの側面（図５の下面）２２ｂに密接させた状態で、図示しないボルトやバンド等の結合固定具により、上記ディスク９及びハブ２を上記支持具２３ｂに支持固定する。そして、この状態で、図示しない駆動装置により上記外輪１を回転駆動しつつ、精密加工バイト等の工具２４ｃにより、上記静止側取付面１５に旋削加工を施す。この旋削加工の際に、この工具２４ｃは、上記支持具２３ｂの側面２２ｂ（上記軸方向外側の制動用摩擦面１６）に対し平行に移動させる。そして、この様に軸方向外側の制動用摩擦面１６を基準面として静止側取付面１５に旋削加工を施す事により、この静止側取付面１５の平面度を向上させると共に、この静止側取付面１５と上記両制動用摩擦面１６、１６との平行度を、更に向上させる。 If both the braking friction surfaces 16 and 16 have been turned as described above, then, as shown in FIG. The braking friction surface 16 on the outer side in the direction is used as a reference surface. For this reason, in the case of this reference example, a bolt, a band or the like (not shown) is coupled with the axially outer braking friction surface 16 in close contact with the side surface (lower surface in FIG. 5) 22b of the support 23b. The disk 9 and the hub 2 are supported and fixed to the support 23b by a fixture. In this state, the stationary ring 15 is turned with a tool 24c such as a precision cutting tool while the outer ring 1 is rotationally driven by a driving device (not shown). During the turning process, the tool 24c is moved in parallel to the side surface 22b of the support 23b (the braking friction surface 16 on the outside in the axial direction). Then, by turning the stationary side mounting surface 15 with the braking friction surface 16 on the outer side in the axial direction as a reference surface in this way, the flatness of the stationary side mounting surface 15 is improved and the stationary side mounting surface is improved. 15 and the braking friction surfaces 16, 16 are further improved in parallelism.

上述の様にして静止側取付面１５に旋削加工を施したならば、前記各スタッド１３の雄ねじ部から、前記各抑えナット２５を取り外す。尚、本参考例の技術思想を実施する場合、上記回転側支持フランジ１０に対する上記ディスク９の結合強度を、前記各ねじ２１により十分に確保できる場合には、上述した様な旋削加工は、上記各抑えナット２５を使用せずに行なっても良い。又、上記静止側取付面１５に旋削加工を施す際の基準面は、軸方向内側の制動用摩擦面１６であっても良い。 When the stationary side mounting surface 15 is turned as described above, the holding nuts 25 are removed from the male screw portions of the studs 13. When the technical idea of the present reference example is implemented, when the coupling strength of the disk 9 to the rotation-side support flange 10 can be sufficiently secured by the screws 21, the turning process as described above is performed as described above. You may carry out without using each holding nut 25. FIG. Further, the reference surface for turning the stationary mounting surface 15 may be the braking friction surface 16 on the inner side in the axial direction.

上述の様に、本参考例のディスク付の車輪支持用転がり軸受ユニットの製造方法の場合には、１対の制動用摩擦面１６、１６と静止側取付面１５との平行度を良好にできる。この為、これら両制動用摩擦面１６、１６と、上記静止側取付面１５に取り付けるサポート又はキャリパとの、互いの位置関係を良好にできる。従って、制動時に、上記両制動用摩擦面１６、１６と、上記キャリパに組み付けた１対のパッドとの接触状態を良好にできる。この結果、制動時にジャダーが発生するのを抑制できる。又、本参考例の場合には、外輪１に対してハブ２を回転させながら、上記両制動用摩擦面１６、１６に旋削加工を施す為、自動車の走行時に、これら両制動用摩擦面１６、１６のアキシアル方向の振れを抑える事ができる。従って、この点からも、上記ジャダーの発生を抑制できる。 As described above, in the case of the manufacturing method of the wheel-supporting rolling bearing unit with a disk according to this reference example , the parallelism between the pair of braking friction surfaces 16 and 16 and the stationary side mounting surface 15 can be improved. . For this reason, the mutual positional relationship between the braking friction surfaces 16 and 16 and the support or caliper attached to the stationary attachment surface 15 can be improved. Therefore, the contact state between the braking friction surfaces 16 and 16 and the pair of pads assembled to the caliper can be improved during braking. As a result, the occurrence of judder during braking can be suppressed. In the case of this reference example , both the braking friction surfaces 16 and 16 are turned while the hub 2 is rotated with respect to the outer ring 1, so that both the braking friction surfaces 16 are traveled when the vehicle is running. , 16 axial vibrations can be suppressed. Therefore, also from this point, the occurrence of the judder can be suppressed.

尚、上述した参考例の第２例に就いても、スタッド１３を、回転側支持フランジ１０に形成した圧入孔１２の内側に圧入固定する構造に対して、参考例の技術思想を適用した。但し、本参考例の技術思想に就いても、図６に示す様な構造、即ち、自動車への組み付け時にホイール及びディスク９を挿通した図示しないボルトを、回転側支持フランジ１０に形成したねじ孔２６に螺合固定する構造に対して、適用する事もできる。 Even in the second example of the reference example described above, the technical idea of the reference example was applied to the structure in which the stud 13 is press-fitted and fixed inside the press-fitting hole 12 formed in the rotation-side support flange 10. However, even in the technical idea of the present reference example, a screw hole formed in the rotation-side support flange 10 with a structure as shown in FIG. 6, that is, a bolt (not shown) through which a wheel and a disk 9 are inserted when assembled to an automobile. The present invention can also be applied to a structure that is screwed to 26.

又、上述した参考例の第２例では、１対の制動用摩擦面１６、１６に旋削加工を施した後に、静止側取付面１５に旋削加工を施したが、これとは逆に、この静止側取付面１５に旋削加工を施した後に、上記両制動用摩擦面１６、１６に旋削加工を施す事もできる。又、上述した参考例の第２例では、上記静止側取付面１５を基準面として上記両制動用摩擦面１６、１６に旋削加工を施す作業と、一方の制動用摩擦面１６を基準面として上記静止側取付面１５に旋削加工を施す作業との、双方を行なったが、本参考例の技術思想を実施する場合には、これら両作業のうちの何れか一方の作業のみを行なう様にしても良い。但し、この場合には、基準面とする面の平面度を、予め良好に仕上げておくのが好ましい。更に、上述した参考例の第２例に関しても、上記両制動用摩擦面１６、１６及び静止側取付面１５に施す仕上加工として、旋削加工を採用したが、これに代えて（或はこれに加えて）、研削加工を採用する事もできる。 Further, in the second example of the reference example described above, after turning the pair of braking friction surfaces 16, 16, the stationary side mounting surface 15 is turned. After turning the stationary mounting surface 15, the braking friction surfaces 16, 16 can also be turned. In the second example of the reference example described above, both the braking friction surfaces 16 and 16 are turned using the stationary side mounting surface 15 as a reference surface, and one braking friction surface 16 is used as a reference surface. Although both the work of turning the stationary side mounting surface 15 was performed, when implementing the technical idea of this reference example, only one of these two works should be performed. May be. However, in this case, it is preferable that the flatness of the surface to be used as the reference surface is finished well beforehand. Further, with regard to the second example of the reference example described above, a turning process was adopted as a finishing process applied to both the braking friction surfaces 16 and 16 and the stationary side mounting surface 15, but instead of this (or to this) In addition, grinding can be employed.

又、上述した参考例の第２例も、外輪１の外周面のうち結合フランジ５の軸方向外側に隣接する部分に静止側支持フランジ６を形成した構造を、実施の対象とした。これに対し、本参考例の技術思想に関しても、勿論、前記特許文献１に記載された様な、結合フランジの径方向外端部に静止側支持フランジを一体的に形成した構造を対象として実施する事も可能である。更には、結合フランジの両側面のうち軸方向内側面をナックルに対する突き当て面とし、軸方向外側面をサポート又はキャリパの取付面とする構造を対象として、本参考例の技術思想を実施する事も可能である。 In the second example of the reference example described above, the structure in which the stationary side support flange 6 is formed on the outer peripheral surface of the outer ring 1 adjacent to the outer side in the axial direction of the coupling flange 5 is also an object of implementation. On the other hand, regarding the technical idea of this reference example, as a matter of course, it is implemented for a structure in which a stationary support flange is integrally formed at the radially outer end portion of the coupling flange as described in Patent Document 1. It is also possible to do. Furthermore, the technical idea of this reference example should be implemented for a structure in which the axially inner side surface of the both side surfaces of the coupling flange is the abutment surface against the knuckle and the axially outer surface is the support or caliper mounting surface. Is also possible.

［実施の形態の１例］
図７〜８は、本発明の実施の形態の１例を示している。本例の場合には、静止側支持フランジ６の軸方向外側面と回転側支持フランジ１０の軸方向内側面との間隔が狭い場合にも、この静止側支持フランジ６の軸方向外側面（静止側取付面１５）とこの回転側支持フランジ１０の軸方向外側面との平行度を向上させる事を意図している。即ち、小型の車輪支持用転がり軸受ユニットの場合、上記静止側支持フランジ６の軸方向外側面と上記回転側支持フランジ１０の軸方向内側面との間隔が狭く、そのままではこの静止側支持フランジ６の軸方向外側面を、十分に剛性が高い部分に支持固定できない可能性がある。そして、支持固定できない場合には、上記静止側支持フランジ６の軸方向外側面を基準面としてハブ２を回転させ、上記回転側支持フランジ１０の軸方向外側面（回転側取付面１４）の仕上加工を行なう事は難しい。この場合でも、この回転側支持フランジ１０の軸方向外側面を基準として上記静止側フランジ６の軸方向外側面に仕上加工を施す事は可能ではある。但し、上記回転側支持フランジ１０が全周に亙って連続する円板状であるのに対して、上記静止側支持フランジ６は円周方向の一部にのみ設けられている為、外輪１を回転させつつこの静止側支持フランジ６の軸方向外側面を平坦に仕上げる事は難しい場合がある。 [ Example of Embodiment ]
7 to 8 show an example of the embodiment of the present invention . In the case of this example, even when the distance between the axially outer side surface of the stationary side supporting flange 6 and the axially inner side surface of the rotating side supporting flange 10 is narrow, the axially outer side surface of the stationary side supporting flange 6 (stationary It is intended to improve the parallelism between the side mounting surface 15) and the axially outer surface of the rotating side support flange 10. That is, in the case of a small wheel support rolling bearing unit, the interval between the axially outer surface of the stationary support flange 6 and the axially inner surface of the rotating support flange 10 is narrow. There is a possibility that the outer surface in the axial direction cannot be supported and fixed to a sufficiently rigid portion. If the supporting and fixing cannot be performed, the hub 2 is rotated with the axially outer side surface of the stationary side supporting flange 6 as a reference surface, and the axially outer side surface (rotating side mounting surface 14) of the rotating side supporting flange 10 is finished. It is difficult to process. Even in this case, it is possible to finish the axially outer surface of the stationary flange 6 with reference to the axially outer surface of the rotating side support flange 10. However, since the rotation-side support flange 10 has a disk shape continuous over the entire circumference, the stationary-side support flange 6 is provided only in a part in the circumferential direction. It may be difficult to finish the outer surface in the axial direction of the stationary support flange 6 flat while rotating.

そこで本例の場合には、上記静止側支持フランジ６の軸方向外側面を基準として、上記外輪１のうちでこの静止側支持フランジ６の軸方向外側面よりも軸方向内側に存在する中間基準側面部分をこの軸方向外側面と平行に仕上げる。この中間基準側面部分は、上記静止側支持フランジ６の軸方向内側面と、上記外輪１の外周面に設けた結合フランジ５の軸方向内側面とのうちの何れかの面とする。何れの面を中間基準側面部分として利用する場合でも、この中間基準側面部分を基準面として上記外輪１を支持固定した状態で上記ハブ２を回転させ、上記回転側支持フランジ１０の軸方向外側面に平面加工を施す事により、上記静止側支持フランジ６の軸方向外側面に対する上記回転側支持フランジ１０の軸方向外側面の面の平行度を向上させる。   Therefore, in the case of the present example, with reference to the axially outer side surface of the stationary support flange 6, an intermediate reference existing on the axially inner side of the outer ring 1 with respect to the axially outer surface of the stationary side support flange 6. The side surface is finished parallel to this axially outer surface. The intermediate reference side surface portion is any one of the inner surface in the axial direction of the stationary support flange 6 and the inner surface in the axial direction of the coupling flange 5 provided on the outer peripheral surface of the outer ring 1. Whichever surface is used as the intermediate reference side surface portion, the hub 2 is rotated in a state where the outer ring 1 is supported and fixed using the intermediate reference side surface portion as a reference surface, and the axially outer surface of the rotation side support flange 10 is rotated. By performing the planar processing on the surface, the parallelism of the surface on the outer side in the axial direction of the rotation side support flange 10 with respect to the outer surface in the axial direction of the stationary side support flange 6 is improved.

この様な本例の製造方法を実施する場合に、上記中間基準側面部分として利用する、上記静止側支持フランジ６又は上記結合フランジ５の軸方向内側面は、元々の基準面である、上記静止側支持フランジ６の軸方向外側面に対して厳密に平行にする必要がある。そこで本例の場合には、上記外輪１を精密旋盤等の仕上加工装置のホルダ（チャック）に保持したままの状態で（途中にチャックから取り外す事なく）、図８に破線を付した、上記静止側支持フランジ６の軸方向外側面と、この静止側支持フランジ６又は上記結合フランジ５の軸方向内側面とを仕上げる、所謂ワンチャック加工を実施する。ワンチャック加工により上記外輪１を、ホルダから取り外す事なく、上記静止側支持フランジ６の軸方向外側面と上記中間基準側面部分として利用する面とに仕上加工を施せば、これら両面同士を、厳密に平行にできる。   When the manufacturing method of this example is carried out, the stationary side support flange 6 or the axially inner side surface of the coupling flange 5 used as the intermediate reference side surface portion is the original reference surface. The side support flange 6 needs to be strictly parallel to the outer surface in the axial direction. Therefore, in the case of this example, the outer ring 1 is held in a holder (chuck) of a finishing device such as a precision lathe (without being removed from the chuck in the middle), and a broken line is added to FIG. A so-called one-chuck process is performed to finish the outer surface in the axial direction of the stationary support flange 6 and the inner surface in the axial direction of the stationary support flange 6 or the coupling flange 5. If the outer ring 1 is finished from the axially outer side surface of the stationary side support flange 6 and the surface used as the intermediate reference side surface portion without removing the outer ring 1 from the holder by one-chuck processing, Can be parallel to

そして、この様にして得た上記中間基準面部分は、上記仕上加工装置のホルダに、上記回転側支持フランジ１０に邪魔される事なく保持できる（この中間基準面部分をこのホルダの基準面に突き当てられる）。従って、上記静止側支持フランジ６又は上記結合フランジ５の軸方向内側面を上記中間基準面部分として利用すれば、上記静止側支持フランジ６の軸方向外側面と上記回転側支持フランジ１０の軸方向内側面との間隔が狭くても、上記回転側支持フランジ１０の軸方向外側面に仕上加工を施せる。この場合には、上記静止側支持フランジ６の軸方向外側面（静止側取付面１５）を、上記回転側支持フランジ１０の軸方向外側面（回転側取付面１４）を仕上げる為の基準面として、間接的に利用する事になる。尚、本例の様な製造方法は、ディスク付の車輪支持用転がり軸受ユニットで実施する事もできる。   The intermediate reference surface portion thus obtained can be held on the holder of the finishing apparatus without being obstructed by the rotation-side support flange 10 (this intermediate reference surface portion is used as the reference surface of the holder). Abutted). Accordingly, if the axially inner side surface of the stationary support flange 6 or the coupling flange 5 is used as the intermediate reference surface portion, the axially outer surface of the stationary side support flange 6 and the axial direction of the rotating side support flange 10 are used. Even if the distance from the inner side surface is narrow, the outer side surface in the axial direction of the rotation side support flange 10 can be finished. In this case, the axially outer side surface (stationary side mounting surface 15) of the stationary side support flange 6 is used as a reference surface for finishing the axially outer side surface (rotational side mounting surface 14) of the rotating side support flange 10. It will be used indirectly. In addition, the manufacturing method like this example can also be implemented with a wheel bearing rolling bearing unit with a disk.

［本発明に関する参考例の第３例］
図９は、本発明に関する参考例の第３例を示している。本参考例の場合には、外輪１の外周面に設けた静止側支持フランジ６の軸方向外側面（静止側取付面１５）を基準として、ハブ２の外周面に設けた回転側支持フランジ１０の軸方向外側面（回転側取付面）を仕上げる為にこのハブ２を保持した状態のまま（ワンチャックで）、この回転側支持フランジ１０の軸方向外側面の内径寄り部分に形成した位置決め筒部２７の外周面も（図９に破線を付した部分を一挙に）仕上げる様にしている。この位置決め筒部２７は、ディスク９（例えば図６参照）及び車輪のホイール（図示省略）の径方向に関する位置決めを図る為のものである。従って、上記位置決め筒部２７の外周面の中心軸は、上記ハブ２の回転中心に一致する必要がある。本参考例の場合には、上記回転側支持フランジ１０の軸方向外側面の仕上加工と上記位置決め筒部２７の外周面の仕上加工とを、加工装置に上記ハブ２を着脱する事なく、上記外輪１の内径側にこのハブ２を回転させつつ行なう為、このハブ２の回転中心と上記位置決め筒部２７の中心軸とを厳密に一致させる事ができる。この為、上記ハブ２に固定した車輪の振れ回りを抑えて、走行安定性等の走行性能の向上を図れる。 [ Third example of reference example of the present invention ]
FIG. 9 shows a third example of the reference example related to the present invention . In the case of this reference example , the rotation-side support flange 10 provided on the outer peripheral surface of the hub 2 with reference to the axially outer side surface (stationary-side mounting surface 15) of the stationary-side support flange 6 provided on the outer peripheral surface of the outer ring 1. In order to finish the outer surface in the axial direction (rotation side mounting surface), the positioning cylinder formed on the inner diameter portion of the outer surface in the axial direction of the rotation side support flange 10 while holding the hub 2 (with one chuck). The outer peripheral surface of the portion 27 is also finished (a portion indicated by a broken line in FIG. 9 is finished at once). The positioning cylinder 27 is for positioning the disk 9 (see, for example, FIG. 6) and the wheel (not shown) in the radial direction. Therefore, the central axis of the outer peripheral surface of the positioning cylinder portion 27 needs to coincide with the rotation center of the hub 2. In the case of this reference example , the finishing of the outer surface in the axial direction of the rotating side support flange 10 and the finishing of the outer peripheral surface of the positioning cylinder portion 27 can be performed without attaching or detaching the hub 2 to or from the processing device. Since the hub 2 is rotated while being rotated toward the inner diameter side of the outer ring 1, the center of rotation of the hub 2 and the center axis of the positioning cylinder portion 27 can be exactly matched. Therefore, it is possible to improve the running performance such as running stability by suppressing the swinging of the wheel fixed to the hub 2.

［本発明に関する参考例の第４例］
図１０〜１１は、本発明に関する参考例の第４例を示している。本参考例の場合には、静止側支持フランジ６により外輪１を支持した状態で回転側支持フランジ１０の軸方向外側面（回転側取付面１４）に仕上加工を施す際に、この回転側支持フランジ１０の軸方向外側面と水平面とを厳密に一致させたままにする事を意図している。上記静止側支持フランジ６は、上記外輪１に対しディスクブレーキのサポート又はキャリパを支持固定する為のものであるから、円周方向の一部にのみ存在する。従って、上記静止側支持フランジ６により上記外輪１を支持すると、この外輪１及びこの外輪１の内径側に組み付けられたハブ２が上記静止側支持フランジ６から片側に張り出した、所謂片持ち支持の状態となる。 [ Fourth example of a reference example related to the present invention ]
FIGS. 10-11 has shown the 4th example of the reference example regarding this invention . In the case of this reference example , when the outer ring 1 is supported by the stationary side support flange 6, the rotation side support flange 10 is subjected to finishing processing on the outer side surface (rotation side mounting surface 14) of the rotation side support flange 10. It is intended to keep the axially outer surface of the flange 10 and the horizontal plane exactly matched. The stationary side support flange 6 is for supporting and fixing a disc brake support or caliper to the outer ring 1, and therefore exists only in a part in the circumferential direction. Accordingly, when the outer ring 1 is supported by the stationary side support flange 6, the outer ring 1 and the hub 2 assembled on the inner diameter side of the outer ring 1 are so-called cantilevered support projecting from the stationary side support flange 6 to one side. It becomes a state.

この静止側支持フランジ６は、制動時にブレーキトルクを支承するものであるから、剛性は大きく、上記外輪１及びハブ２の重量による撓みは僅少ではあるが、全く撓まないとは言えない。撓む事は、図１０に示す様に、上記静止側支持フランジ６を支持板２８にねじ止め固定した場合でも、図１１に示す様に、この静止側支持フランジ６を受板２９と押圧腕３０との間で挟持（クランプ）した場合でも同じである。何れにしても、撓んだ場合には、上記ハブ２の回転中心軸の方向が鉛直方向からずれる。従って、上記回転側支持フランジ１０の軸方向外側面に、水平方向に移動する加工治具（バイト）による切削等の仕上加工を施しても、この回転側支持フランジ１０の軸方向外側面が上記ハブ２の回転中心軸に対し直角方向に向かなくなる。この結果、この回転側支持フランジ１０の軸方向外側面に支持固定したディスク９（例えば図４〜６参照）の軸方向両側面が、上記ハブ２の回転に伴って軸方向に振れる様になる。   Since the stationary side support flange 6 supports the brake torque during braking, the rigidity is high and the bending of the outer ring 1 and the hub 2 due to the weight of the outer ring 1 and the hub 2 is slight, but it cannot be said that it does not bend at all. As shown in FIG. 10, even when the stationary side support flange 6 is screwed and fixed to the support plate 28 as shown in FIG. 10, the stationary side support flange 6 is fixed to the receiving plate 29 and the pressing arm as shown in FIG. This is the same even when clamped between 30. In any case, when bent, the direction of the rotation center axis of the hub 2 deviates from the vertical direction. Therefore, even if the outer side surface in the axial direction of the rotation side support flange 10 is subjected to finishing processing such as cutting by a processing jig (bite) that moves in the horizontal direction, the outer side surface in the axial direction of the rotation side support flange 10 is The hub 2 does not face the direction perpendicular to the rotation center axis of the hub 2. As a result, both side surfaces in the axial direction of the disk 9 (see, for example, FIGS. 4 to 6) supported and fixed on the outer surface in the axial direction of the rotation side support flange 10 swing in the axial direction as the hub 2 rotates. .

この様な振れの原因になる、上記外輪１及び上記ハブ２の重量による上記静止側支持フランジ６の撓みを防止する為に、本参考例の場合には、上記外輪１の外周面に設けた結合フランジ５の下面を支え腕３１により、上記静止側支持フランジ６と径方向反対側に支持している。即ち、上記外輪１及び上記ハブ２の中心軸を鉛直方向に向けて、上記静止側支持フランジ６を、上記支持板２８に、或いは上記受板２９と上記押圧腕３０との間に支持固定した状態で、上記支え腕３１の先端面（上端面）を結合フランジ５の下面に突き当てている。そして、静止側取付面１５を基準面として回転側取付面１４に平面加工を施す際に、上記外輪１及び上記ハブ２の中心軸が、これら両部材１、２の自重により上記鉛直方向からずれる事を防止する様にしている。尚、上記支え腕３１は、これら両部材１、２の自重に見合う弾力により上方に押圧したままとしても、或いは、所定の高さ位置に固定しても良い。何れにしても、上記支え腕３１により前記撓みを防止しつつ、上記回転側取付面１４に平面加工を施す事により、この回転側取付面１４を上記ハブ２の回転中心に対し厳密に直角方向に位置させられる。尚、本参考例の様な製造方法も、ディスク付の車輪支持用転がり軸受ユニットで実施する事もできる。 In order to prevent the stationary side support flange 6 from being bent due to the weight of the outer ring 1 and the hub 2, which is the cause of such vibration, in the case of this reference example , it is provided on the outer peripheral surface of the outer ring 1. The lower surface of the coupling flange 5 is supported by the support arm 31 on the opposite side to the stationary side support flange 6 in the radial direction. That is, the stationary-side support flange 6 is supported and fixed to the support plate 28 or between the receiving plate 29 and the pressing arm 30 with the central axes of the outer ring 1 and the hub 2 directed vertically. In this state, the front end surface (upper end surface) of the support arm 31 is abutted against the lower surface of the coupling flange 5. When the stationary side mounting surface 15 is used as a reference surface and the rotational side mounting surface 14 is flattened, the central axes of the outer ring 1 and the hub 2 are deviated from the vertical direction by the weights of both the members 1 and 2. I try to prevent things. The support arm 31 may be kept pressed upward by the elasticity corresponding to the weight of both the members 1 and 2 or may be fixed at a predetermined height position. In any case, the rotation side mounting surface 14 is flattened in a direction perpendicular to the center of rotation of the hub 2 by performing planar processing on the rotation side mounting surface 14 while preventing the bending by the support arm 31. Is located. The manufacturing method as in this reference example can also be carried out with a wheel bearing rolling bearing unit with a disk.

［本発明を実施する場合の留意事項］
本発明の車輪支持用転がり軸受ユニットの製造方法は、外輪１とハブ２とを、複数の転動体を介して相対回転自在に組み合わせた後、回転側取付面１４或いはディスク９の軸方向両側面等の回転側円輪面と、静止側取付面１５との平行度を向上させる点にある。この様に、上記静止側部材と回転側部材とを組み合わせた後に上記各面に仕上加工を施す為、これら両部材の形状が熱処理等に伴って歪んでも、上記仕上加工に伴ってこの歪みに基づく変形分を除去できる。 [Points to note when implementing the present invention]
In the method of manufacturing a wheel bearing rolling bearing unit according to the present invention, the outer ring 1 and the hub 2 are combined so as to be relatively rotatable via a plurality of rolling elements, and then the rotation side mounting surface 14 or both side surfaces of the disk 9 in the axial direction. It is in the point which improves the parallelism of rotation side ring surfaces, such as these, and the stationary side attachment surface 15. FIG. In this way, since each surface is finished after combining the stationary side member and the rotating side member, even if the shape of both members is distorted due to heat treatment or the like, the distortion is caused by the finishing process. The deformation based on it can be removed.

但し、上記両部材を上記各転動体を介して組み合わせた後、上記仕上加工に伴って生じる切削屑や摩耗粉、更には切削油（クーラント）が、これら各転動体の設置部分に入り込まない様にする為の考慮が必要になる。この為、図１２に示す様に、ノズル３２から圧縮空気を噴出して上記切削屑、摩耗粉、切削油を吹き飛ばしたり、或いは、吸入ホース３３によりこれら切削屑、摩耗粉、切削油を吸入、排出する事が好ましい。   However, after the two members are combined via the rolling elements, the cutting waste and wear powder generated by the finishing process, and the cutting oil (coolant) do not enter the installation parts of the rolling elements. Consideration is necessary to make it. For this reason, as shown in FIG. 12, compressed air is ejected from the nozzle 32 to blow off the cutting waste, wear powder and cutting oil, or the cutting hose 33 sucks the cutting waste, wear powder and cutting oil. It is preferable to discharge.

又、外周面に静止側支持フランジ６を設けた外輪１を支持した状態で上記各面に仕上加工を施す場合、この外輪１の中心軸を所定位置で鉛直方向に保持（芯出し）する必要がある。この場合、上記静止側支持フランジ６は、円周方向の一部だけに設けられているので、この静止側フランジ６を利用して、上記芯出しを行なう事はできない。この為、例えば図１３に示す様に、上記外輪１の軸方向内端部に設けた、この外輪１を懸架装置のナックルの支持孔に内嵌する部分（ナックルパイロット部）を、保持板３４の基準孔３５にがたつきなく内嵌する事が考えられる。或いは、図１４に示す様に、円周方向３個所位置に配置した芯出しローラ３６、３６をナックルパイロット部に押し付けて、上記外輪１の芯出しを行なう事もできる。何れの場合も、芯出し後に、前述の図１１に示した様に、上記静止側支持フランジ６を軸方向両側から強く挟持する等により、上記外輪１を支持固定してから、回転側支持フランジ１０の軸方向外側面に仕上加工を施す。   Further, when finishing each of the above surfaces with the outer ring 1 provided with the stationary side support flange 6 on the outer peripheral surface, the center axis of the outer ring 1 needs to be held (centered) in a vertical direction at a predetermined position. There is. In this case, since the stationary side support flange 6 is provided only in a part in the circumferential direction, the centering cannot be performed using the stationary side flange 6. Therefore, for example, as shown in FIG. 13, a portion (knuckle pilot portion) provided at the inner end in the axial direction of the outer ring 1 and fitting the outer ring 1 into the knuckle support hole of the suspension device is used as the holding plate 34. It is conceivable that the reference hole 35 is fitted into the reference hole 35 without rattling. Alternatively, as shown in FIG. 14, the outer ring 1 can be centered by pressing the centering rollers 36, 36 disposed at three positions in the circumferential direction against the knuckle pilot portion. In any case, after the centering, as shown in FIG. 11 described above, the outer ring 1 is supported and fixed by, for example, strongly holding the stationary side supporting flange 6 from both sides in the axial direction, and then the rotating side supporting flange. Finishing is performed on the outer surface in the 10 axial direction.

更に、この回転側支持フランジ１０の軸方向外側面に仕上加工を施す際には、上記外輪１の内径側でハブ２を回転させる必要がある。この為には、例えば上記図１４に示した構造で、何れか又は総ての芯出しローラ３６を回転させたり、図１５に示す様に、上記ハブ２の軸方向外端面と摩擦係合した駆動腕３７によりこのハブ２を回転駆動する事もできる。更には、このハブ２の軸方向外端面のうちで位置決め筒部２７に周囲を囲まれた部分に設けた突起と駆動腕の一部とを凹凸係合させ、上記ハブ２を回転駆動する事もできる。   Further, when finishing the axially outer surface of the rotation side support flange 10, it is necessary to rotate the hub 2 on the inner diameter side of the outer ring 1. For this purpose, for example, in the structure shown in FIG. 14, any or all of the centering rollers 36 are rotated, or as shown in FIG. 15, they are frictionally engaged with the axially outer end surface of the hub 2. The hub 2 can also be rotationally driven by the drive arm 37. Further, a protrusion provided on a portion surrounded by the positioning cylinder portion 27 on the outer end surface in the axial direction of the hub 2 and a part of the driving arm are engaged with each other to drive the hub 2 to rotate. You can also.

図７〜８に示した実施の形態の１例及び図９〜１１に示した参考例の第４〜５例の製造方法は、前述の図４に示す様な、静止側支持フランジ６の軸方向外側面である静止側取付面１５を基準として、ディスク９の軸方向両側面に仕上加工する場合にも適用できる。但し、図９に示した、位置決め筒部２７の外周面の仕上加工に関しては、この位置決め筒部２７の先半部（図９の上半部）で、車輪のホイールを外嵌する部分のみが対象となる。 The manufacturing method of one example of the embodiment shown in FIGS. 7 to 8 and the fourth to fifth examples of the reference example shown in FIGS. 9 to 11 is the shaft of the stationary support flange 6 as shown in FIG. The present invention can also be applied to the case where finishing is performed on both side surfaces in the axial direction of the disk 9 with reference to the stationary side mounting surface 15 that is the outer surface in the direction. However, regarding the finishing of the outer peripheral surface of the positioning cylinder portion 27 shown in FIG. 9, only the portion of the front half portion (upper half portion of FIG. 9) that fits the wheel of the wheel is fitted. It becomes a target.

１ 外輪
２ ハブ
３ 玉
４ａ、４ｂ 外輪軌道
５ 結合フランジ
６ 静止側支持フランジ
７ ハブ本体
８ 内輪
９ ディスク
１０ 回転側支持フランジ
１１ａ、１１ｂ 内輪軌道
１２ 圧入孔
１３ スタッド
１４ 回転側取付面
１５ 静止側取付面
１６ 制動用摩擦面
１７ａ、１７ｂ 支持具
１８ａ、１８ｂ 側面
１９ａ、１９ｂ、１９ｃ 工具
２０ 凹部
２１ ねじ
２２ａ、２２ｂ 側面
２３ａ、２３ｂ 支持具
２４ａ、２４ｂ、２４ｃ 工具
２５ 抑えナット
２６ ねじ孔
２７ 位置決め筒部
２８ 支持板
２９ 受板
３０ 押圧腕
３１ 支え腕
３２ ノズル
３３ 吸入ホース
３４ 保持板
３５ 基準孔
３６ 芯出しローラ
３７ 駆動腕
３８ 通孔 DESCRIPTION OF SYMBOLS 1 Outer ring 2 Hub 3 Ball 4a, 4b Outer ring raceway 5 Coupling flange 6 Stationary side support flange 7 Hub body 8 Inner ring 9 Disc 10 Rotation side support flange 11a, 11b Inner ring raceway 12 Press-fit hole 13 Stud 14 Rotation side mounting surface 15 Stationary side installation Surface 16 Braking friction surface 17a, 17b Support tool 18a, 18b Side surface 19a, 19b, 19c Tool 20 Recess 21 Screw 22a, 22b Side surface 23a, 23b Support tool 24a, 24b, 24c Tool 25 Retaining nut 26 Screw hole 27 Positioning cylinder part 28 Support Plate 29 Receiving Plate 30 Pressing Arm 31 Supporting Arm 32 Nozzle 33 Suction Hose 34 Holding Plate 35 Reference Hole 36 Centering Roller 37 Drive Arm 38 Through-hole

Claims (5)

外輪と、ハブと、複数個の転動体とを備え、このうちの外輪は、内周面に複列の外輪軌道を、外周面の軸方向外端寄り部分に、ディスクブレーキを構成するキャリパ又はサポートを支持固定する為の静止側支持フランジを、それぞれ有し、使用時に懸架装置に結合固定した状態で回転しないものであり、上記ハブは、外周面に複列の内輪軌道を有し、使用時に車輪及びディスクと共に回転するものであって、上記ハブの外周面に、その軸方向外側面をこのハブの回転中心軸に対し直角方向に存在すべき回転側円輪面とした回転側支持フランジが設けられており、上記各転動体は、上記両外輪軌道と上記両内輪軌道との間に転動自在に設けられており、上記静止側支持フランジの軸方向外側面のうちの少なくとも一部を、使用時に上記キャリパ又はサポートを取り付ける為の静止側取付面としている車輪支持用転がり軸受ユニットの製造方法であって、上記静止側支持フランジの軸方向外側面を基準として、上記外輪のうちでこの静止側支持フランジの軸方向外側面よりも軸方向内側に存在する中間基準側面部分をこの静止側支持フランジの軸方向外側面と平行に仕上げてから、上記外輪と上記ハブと上記各転動体とを組み立てた後、この外輪に対しこのハブを回転させながら、上記中間基準側面部分を基準面として利用しつつ、上記回転側支持フランジの軸方向外側面に平面加工を施す事により、上記静止側支持フランジの軸方向外側面に対する上記回転側支持フランジの軸方向外側面の平行度を向上させる、車輪支持用転がり軸受ユニットの製造方法。 The outer ring includes an outer ring, a hub, and a plurality of rolling elements. Of these, the outer ring has a double row outer ring raceway on the inner peripheral surface, and a caliper that constitutes a disc brake on a portion near the outer end in the axial direction of the outer peripheral surface. Each hub has a stationary support flange to support and fix the support, and it does not rotate in a state where it is connected and fixed to the suspension system when in use. The hub has a double row inner ring raceway on the outer peripheral surface and is used. Rotating side support flange that rotates together with the wheel and the disk, and has an outer circumferential surface of the hub whose outer surface in the axial direction should be in a direction perpendicular to the central axis of rotation of the hub. The rolling elements are provided between the outer ring raceways and the inner ring raceways so as to roll freely, and at least a part of the axially outer side surface of the stationary support flange. When using the above caliper Is a method of manufacturing a wheel-supporting rolling bearing unit as a stationary side mounting surface for mounting a support, wherein the stationary side supporting flange is a part of the outer ring on the basis of the axially outer side surface of the stationary side supporting flange. After finishing the intermediate reference side surface portion that is present on the inner side in the axial direction than the outer surface in the axial direction in parallel with the outer surface in the axial direction of the stationary support flange, and assembling the outer ring, the hub, and the rolling elements, By rotating the hub with respect to the outer ring and using the intermediate reference side surface portion as a reference surface, the axial direction outer surface of the rotation side support flange is flattened, thereby the axial direction of the stationary side support flange. The manufacturing method of the rolling bearing unit for wheel support which improves the parallelism of the axial direction outer surface of the said rotation side support flange with respect to an outer surface. 中間基準側面部分が、静止側支持フランジの軸方向内側面と、外輪を懸架装置に結合固定する為にこの外輪の外周面に設けた結合フランジの軸方向内側面とのうちの何れかの内側面である、請求項１に記載した車輪支持用転がり軸受ユニットの製造方法。   The intermediate reference side surface is either one of the axial inner side surface of the stationary side support flange and the axial inner side surface of the coupling flange provided on the outer peripheral surface of the outer ring for coupling and fixing the outer ring to the suspension device. The manufacturing method of the wheel support rolling bearing unit of Claim 1 which is a side surface. 回転側支持フランジが、車輪並びにディスクブレーキを構成するディスクを支持固定する為のものであり、この回転側支持フランジの軸方向外側面に設けられて、使用時に上記車輪並びにディスクを取り付ける為の回転側取付面の内径側端部に、この回転側取付面よりも軸方向外方に突出する位置決め筒部が設けられており、上記回転側取付面に仕上加工を施す為に上記ハブを保持した状態のまま、上記位置決め筒部の外周面に、この外周面を上記ハブと同心にする仕上加工を行なう、請求項１〜２のうちの何れか１項に記載した車輪支持用転がり軸受ユニットの製造方法。 The rotation side support flange is for supporting and fixing the disk and the disk constituting the disk brake. The rotation side support flange is provided on the outer surface in the axial direction of the rotation side support flange to rotate the wheel and the disk when used. A positioning cylinder portion is provided at the inner diameter side end portion of the side mounting surface so as to protrude axially outward from the rotating side mounting surface, and the hub is held to finish the rotating side mounting surface. The rolling bearing unit for supporting a wheel according to any one of claims 1 to 2, wherein a finishing process is performed on the outer peripheral surface of the positioning cylinder portion in a state where the outer peripheral surface is concentric with the hub . Production method. 外輪と、ハブと、複数個の転動体と、ディスクとを備え、このうちの外輪は、内周面に複列の外輪軌道を、外周面の軸方向外端寄り部分に、ディスクブレーキを構成するキャリパ又はサポートを支持固定する為の静止側支持フランジを、それぞれ有し、使用時に懸架装置に結合固定した状態で回転しないものであり、上記ハブは、外周面に複列の内輪軌道を有し、使用時に車輪及び上記ディスクと共に回転するものであって、上記ディスクは上記ハブの外周面に結合固定されていて、その軸方向両側面を、このハブの回転中心軸に対し直角方向に存在すべき面である回転側円輪面としており、上記各転動体は、上記両外輪軌道と上記両内輪軌道との間に転動自在に設けられており、上記静止側支持フランジの軸方向外側面の少なくとも一部を、使用時に上記キャリパ又はサポートを取り付ける為の静止側取付面としている車輪支持用転がり軸受ユニットの製造方法であって、上記静止側支持フランジの軸方向外側面を基準として、上記外輪のうちでこの静止側支持フランジの軸方向外側面よりも軸方向内側に存在する中間基準側面部分をこの軸方向外側面と平行に仕上げてから、上記外輪と上記ハブと上記各転動体と上記ディスクとを組み立てた後、この外輪に対しこのディスクを回転させながら、上記中間基準側面部分を基準面としてこのディスクの軸方向両側面に平面加工を施す事により、上記静止側支持フランジの軸方向外側面に対する上記ディスクの軸方向両側面の面の平行度を向上させる、車輪支持用転がり軸受ユニットの製造方法。   Outer ring, hub, a plurality of rolling elements, and discs. Outer ring is composed of double-row outer ring raceway on inner peripheral surface and disc brake on outer peripheral surface near axial outer end. Each of the hubs has a stationary support flange for supporting and fixing the caliper or the support, and is not rotated in a state where it is coupled and fixed to the suspension device in use. The hub has a double-row inner ring track on the outer peripheral surface. The wheel rotates together with the wheel and the disk when in use, and the disk is coupled and fixed to the outer peripheral surface of the hub, and both axial side surfaces thereof are perpendicular to the rotation center axis of the hub. A rotating-side circular ring surface that is a surface to be driven, and each of the rolling elements is provided between the outer ring raceway and the inner ring raceway so as to be freely rotatable. At least part of the side A method of manufacturing a wheel-supporting rolling bearing unit that is used as a stationary side mounting surface for mounting the caliper or support during use, wherein the stationary side of the outer ring is stationary with respect to the axially outer side surface of the stationary side supporting flange. After finishing the intermediate reference side surface portion present on the inner side in the axial direction with respect to the outer side surface in the axial direction of the side support flange, the outer ring, the hub, the rolling elements, and the disc were assembled. Then, while rotating the disk with respect to the outer ring, the disk with respect to the axially outer side surface of the stationary support flange is formed by performing flattening on both sides in the axial direction of the disk with the intermediate reference side surface portion as a reference surface. The manufacturing method of the rolling bearing unit for wheel support which improves the parallelism of the surface of the both axial direction of this. 中間基準側面部分が、静止側支持フランジの軸方向内側面と、外輪の外周面に、この外輪を懸架装置に結合固定する為に設けた結合フランジの軸方向内側面とのうちの何れかの内側面である、請求項４に記載した車輪支持用転がり軸受ユニットの製造方法。
The intermediate reference side surface portion is either one of the axial inner side surface of the stationary support flange and the axial inner side surface of the coupling flange provided on the outer circumferential surface of the outer ring for coupling and fixing the outer ring to the suspension device. The manufacturing method of the rolling bearing unit for wheel support described in Claim 4 which is an inner surface.
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