JP2005022541A - Rolling bearing for wheel - Google Patents

Rolling bearing for wheel Download PDF

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Publication number
JP2005022541A
JP2005022541A JP2003190974A JP2003190974A JP2005022541A JP 2005022541 A JP2005022541 A JP 2005022541A JP 2003190974 A JP2003190974 A JP 2003190974A JP 2003190974 A JP2003190974 A JP 2003190974A JP 2005022541 A JP2005022541 A JP 2005022541A
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Japan
Prior art keywords
vehicle body
rolling bearing
knuckle
outer ring
insulating film
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.)
Granted
Application number
JP2003190974A
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Japanese (ja)
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JP4449356B2 (en
Inventor
Shinpei Shudo
眞平 首藤
Koji Taoka
幸治 田岡
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Koyo Seiko Co Ltd
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Koyo Seiko Co Ltd
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Priority to JP2003190974A priority Critical patent/JP4449356B2/en
Publication of JP2005022541A publication Critical patent/JP2005022541A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/62—Selection of substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing

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

Abstract

<P>PROBLEM TO BE SOLVED: To prevent electric erosion from being generated without increasing the number of components. <P>SOLUTION: A rolling bearing 1 for a wheel is provided with an outer ring 2 which has a flange part 11for mounting to a vehicle body and in which the flange part for mounting to a vehicle is made of a metal material with ionization tendency different from that of light alloy. An electric insulation film 15 is attached to a contact face with a knuckle 13 on a vehicle body side of the flange part for mounting to the vehicle body. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、車輪用転がり軸受装置に関する。
【０００２】
【従来の技術】
この種の転がり軸受装置の一例として、車輪取付用の内輪と、複数の転動体を介して、内輪と同心に配置されかつ径方向外向きの車体取付用フランジ部を有する外輪とを備えるとともに、この車体取付用フランジ部をボルトで車体のナックルに締結して、外輪を固定するものがある（特許文献１参照）。
【０００３】
【特許文献１】
実開昭６２−１３４９２１号公報全文
【０００４】
【発明が解決しようとする課題】
上記の転がり軸受装置では、鉄系金属製の車体取付用フランジ部や、アルミニウム合金製のナックルが錆び付いて互いに固着していることが見受けられる。この固着の１つの要因に電食がある。この電食は、車体取付用フランジ部とナックルそれぞれを作る金属のイオン化傾向が異なることにその要因がある。この種の電食防止には種々あり、その１つに、車体取付用フランジ部に錆止めのメッキ膜を施すもの、また、別の１つにナックルと車体取付用フランジ部との間に絶縁シートを介在させるものがある。前者のメッキ膜では外輪をメッキ槽内にドブ漬させる必要があるからメッキ膜形成の不要な部分をマスキングする前工程が必要で製造コストが高くつき、後者の絶縁シートでは、転がり軸受装置の部品点数が増加し、その分、部品コストが増えるばかりか転がり軸受装置の組立工数の増大でコスト増となる。
【０００５】
本発明は、部品点数の増大を招かずに上述した電食の発生の防止を安価に行えるようにしたものである。
【０００６】
【課題を解決するための手段】
本発明は、車体取付用フランジ部を有する固定輪を備え、かつ、車体取付用フランジ部が軽合金とはイオン化傾向が異なる金属材からなる転がり軸受装置に対して、前記車体取付用フランジ部における車体側の被取付部との接触面に、絶縁膜が付着されている構成として上述した課題を解決したものである。車体取付用フランジ部が軽合金とはイオン化傾向が異なる金属材からなるとは、固定輪全体が当該金属からなる場合と、車体取付用フランジ部のみを当該金属から構成した場合とを含み、少なくとも車体取付用フランジ部が軽合金とはイオン化傾向が異なる金属材からなっていることをいう。
【０００７】
この絶縁膜は、好ましくは噴霧することにより得られたふっ素系樹脂膜である。
【０００８】
本発明によれば、車体取付用フランジ部に、予め絶縁膜を付着しているから、上述した電食の発生防止に、わざわざ、車体取付用フランジ部を錆止めのためメッキを行ったり、絶縁シートを配置するなどが不要となり、作業工数の減少と部品コストの低減とが可能となる。
【０００９】
【発明の実施の形態】
本発明の実施の形態に係る車輪用転がり軸受装置（以下、転がり軸受装置という）を、図面を参照しながら説明する。図１は、転がり軸受装置の全体断面図、図２は、図１に示す外輪の（２）−（２）線断面矢視図、図３は、図１に示す外輪の要部を示す断面斜視図、図４は、図１に示す外輪とナックルの取り付け状態の要部を示す断面図である。図１において、左側は車両アウタ側を、右側は車両インナ側である。
【００１０】
これらの図を参照して、１は転がり軸受装置の全体を示し、この転がり軸受装置１は、外輪２、ハブ軸３、玉からなる転動体４、内輪５、保持器６ａ、６ｂを備える。外輪２は、固定輪を、また、ハブ軸３と内輪５は回転輪７を構成し、これらはＪＩＳ規格Ｓ５５Ｃ等の機械構造用炭素鋼やＪＩＳ規格ＳＵＪ２等の高炭素クロム軸受鋼等の鉄系金属から作られる。外輪２は、車両アウタ側の円筒部８と、車体取付用フランジ部１１と、車両インナー側のインロー部１２とからなる。
【００１１】
車体取付用フランジ部１１は、アルミニウム合金、マグネシウム合金、チタン合金などの軽合金で作られたナックル（車体の被取付部）１３に取り付けられるものであり、ナックル１３の車両アウタ側側面１３ａに当接する環状部１１ａと、この環状部１１ａの周方向４箇所から径方向外向きに突出されて雌ねじ部１０が形成された突部１１ｂとからなる。なお、車体取付用フランジ部１１は、複数の突部１１ｂのみから構成しても良い。インロー部１２は、ナックル１３の内径面１３ｂに嵌合され、外輪２をナックル１３に対して径方向で位置決めしている。
【００１２】
ハブ軸３は、不図示の車輪が取り付けられる車輪取付用フランジ部３ａを有する。内輪５は、ハブ軸３の車両インナ側の外周面に嵌合され、その端面にハブ軸３の車両インナ側端部がかしめつけられてハブ軸３に固定されている。外輪２と内輪５との間の環状空間は、車両アウタ側と車両インナ側それぞれに装着されたシール１６、１７により密封される。
【００１３】
車体取付用フランジ部１１の側面１１ｃは、ナックル１３の側面１３ａに接触する接触面となり、また、インロー部１２の外周面１２ａは、ナックル１３の内径面１３ｂに接触する接触面となる。このような接触面にはその全体に電気絶縁性の絶縁膜１５が付着されている。詳しくは、この絶縁膜１５は、電気絶縁性を有する樹脂好ましくはふっ素系樹脂がスプレー噴霧や刷毛等やその他の塗布等により一体的にコーティングされたものである。
【００１４】
外輪２のインロー部１２は、車体のナックル１３に絶縁膜１５を介して嵌合される。車体取付用フランジ部１１は、ナックル１３に絶縁膜１５を介して当接される。このような外輪２は、ナックル１３に挿通されたボルト９が車体取付用フランジ部１１の突部１１ｂの雌ねじ部１０に螺合されることで、車体のナックル１３に締結固定され、この締結状態で車体取付用フランジ部１１とナックル１３は絶縁膜１５を介して密着される。
【００１５】
上述の構造では、車体取付用フランジ部１１とインロー部１２には絶縁膜１５が一体的にコーティングされているから、車体取付用フランジ部１１とインロー部１２が、これらを構成する金属材とはイオン化傾向が異なる金属材からなるナックル１３に直接接触するようなことはなくなり、車体取付用フランジ部１１等に対するナックル１３との金属材の相違による電食を防止できるうえ、絶縁膜１５がパッキン作用を有し、外輪２とナックル１３との接触面から雨水等が侵入して外輪が発錆するのを防止できる付随効果も発揮できる。
【００１６】
外輪２を車体のナックル１３に取り付ける際には、絶縁膜１５は予め外輪２の車体取付用フランジ部１１およびインロー部１２に一体的に塗布によりコーティングされて形成されているため、従来のように電食防止のための部品点数が増加するようなことがなくなり、外輪２とナックル１３との組み付け工数が減り、組み付け作業の迅速化および低コスト化を図れる。
【００１７】
絶縁膜１５は、スプレー噴霧等の塗布手段により形成されるから、従来のようなマスキングを施す前工程が不要となり、簡単かつ安価な被膜形成となる。
【００１８】
なお、外輪２の車体取付用フランジ部１１の形状は、円盤状などに限定されず車体に取り付けられる形状であればよい。外輪２のインロー部１２は、同一直径の円筒以外に、先端側が小径となるように直径の相違する複数の筒部から構成しても良く、かかる場合には、ナックル１３の内径面１３ｂに嵌合する大径の筒部に絶縁膜１５が形成される。しかも、インロー部１２は円筒部８とは別部材とされても良い。さらに、インロー部１２が、かかる別部材のものであって、例えば絶縁膜１５の不要な硬質の樹脂やナックル１３と同質の材質から構成される場合には車体取付用フランジ部１１のみに絶縁膜１５が形成される。
【００１９】
車体の被取付部はナックル１３に限定されず車体側の転がり軸受装置を支持する部材や部分であればよく、しかも、外輪２側が回転輪とされ、内輪５側が固定輪とされる転がり軸受装置にも適用可能である。かかる場合には、内輪５側に車体取付用フランジ部が設けられる。
【００２０】
図５を参照して説明するように絶縁膜１５を熱収縮性のフィルムから構成し、この熱収縮性のフィルムを加熱収縮させて外輪２に取り付けてもよい。絶縁膜１５の一端側は、外輪２の車体取付用フランジ部１１の突部１１ｂの外周部を覆うように、突部１１ｂの車両アウタ側まで延設されている。このように絶縁膜１５の一端側で突部１１ｂの外周部を覆うことにより、絶縁膜１５を車体取付用フランジ部１１に強固に取り付けられる。
【００２１】
【発明の効果】
本発明は、安価な構成で上述した電食の発生を防止できる。
【図面の簡単な説明】
【図１】本発明の実施形態に係る転がり軸受装置の全体断面図
【図２】図１の外輪の（２）−（２）線矢視断面図
【図３】本発明の実施形態に係る転がり軸受装置の外輪の要部を示す断面斜視図
【図４】外輪とナックルの取り付け状態の要部を示す断面図
【図５】他の実施形態を示し、図４に対応する要部断面図
【符号の説明】
２ 外輪（固定輪）
１１ 車体取付用フランジ部
１５ 絶縁膜[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wheel rolling bearing device.
[0002]
[Prior art]
As an example of this type of rolling bearing device, including an inner ring for wheel mounting, and an outer ring having a flange portion for vehicle body mounting that is disposed concentrically with the inner ring and radially outward through a plurality of rolling elements, There are some which fix the outer ring by fastening the body mounting flange portion to the knuckle of the vehicle body with a bolt (see Patent Document 1).
[0003]
[Patent Document 1]
The full text of Japanese Utility Model Publication No. 62-134922
[Problems to be solved by the invention]
In the above-mentioned rolling bearing device, it can be seen that a ferrous metal body mounting flange and an aluminum alloy knuckle are rusted and fixed to each other. One factor of this sticking is electric corrosion. This electrolytic corrosion is caused by the difference in ionization tendency of the metal that forms the body mounting flange and the knuckle. There are various types of this type of electrolytic corrosion prevention, one of which is to apply a rust-preventing plating film to the body mounting flange, and the other is an insulating sheet between the knuckle and the body mounting flange. There is something that intervenes. In the former plating film, it is necessary to dip the outer ring in the plating tank, so a pre-process that masks the unnecessary part of the plating film formation is required, which increases the manufacturing cost. In the latter insulating sheet, the parts of the rolling bearing device The number of points increases, and as a result, the cost of parts increases, and the cost increases due to an increase in the number of assembly steps of the rolling bearing device.
[0005]
The present invention can prevent the occurrence of the above-described electrolytic corrosion at a low cost without increasing the number of parts.
[0006]
[Means for Solving the Problems]
The present invention relates to a rolling bearing device including a fixed ring having a flange for mounting a vehicle body, and the vehicle mounting flange is made of a metal material having a different ionization tendency from that of a light alloy. This solves the above-described problem as a configuration in which an insulating film is attached to a contact surface with a mounted portion on the vehicle body side. The body mounting flange portion is made of a metal material having a different ionization tendency from that of a light alloy, including the case where the entire fixed ring is made of the metal and the case where only the body mounting flange portion is made of the metal, and at least the body The mounting flange portion is made of a metal material having a different ionization tendency from that of the light alloy.
[0007]
This insulating film is preferably a fluorine-based resin film obtained by spraying.
[0008]
According to the present invention, since the insulating film is previously attached to the body mounting flange portion, the body mounting flange portion is purposely plated for rust prevention or the insulating sheet to prevent the occurrence of the above-mentioned electrolytic corrosion. Therefore, it is possible to reduce the work man-hours and the parts cost.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
A wheel rolling bearing device according to an embodiment of the present invention (hereinafter referred to as a rolling bearing device) will be described with reference to the drawings. 1 is an overall cross-sectional view of a rolling bearing device, FIG. 2 is a cross-sectional view taken along line (2)-(2) of the outer ring shown in FIG. 1, and FIG. 3 is a cross-sectional view showing a main part of the outer ring shown in FIG. FIG. 4 is a cross-sectional view showing a main part of the outer ring and the knuckle attached in FIG. In FIG. 1, the left side is the vehicle outer side, and the right side is the vehicle inner side.
[0010]
Referring to these drawings, reference numeral 1 denotes an entire rolling bearing device. The rolling bearing device 1 includes an outer ring 2, a hub shaft 3, rolling elements 4 made of balls, an inner ring 5, and cages 6a and 6b. The outer ring 2 constitutes a fixed ring, and the hub shaft 3 and the inner ring 5 constitute a rotating ring 7, which are made of iron such as carbon steel for mechanical structures such as JIS standard S55C and high carbon chromium bearing steel such as JIS standard SUJ2. Made from a base metal. The outer ring 2 includes a cylindrical portion 8 on the vehicle outer side, a flange portion 11 for mounting a vehicle body, and an inlay portion 12 on the vehicle inner side.
[0011]
The vehicle body mounting flange portion 11 is attached to a knuckle (vehicle body mounting portion) 13 made of a light alloy such as an aluminum alloy, a magnesium alloy, or a titanium alloy, and contacts the vehicle outer side surface 13a of the knuckle 13. It consists of an annular part 11a in contact with each other and a projecting part 11b that protrudes radially outward from four places in the circumferential direction of the annular part 11a to form a female screw part 10. Note that the vehicle body mounting flange portion 11 may be composed of only a plurality of protrusions 11b. The inlay portion 12 is fitted to the inner diameter surface 13 b of the knuckle 13 and positions the outer ring 2 with respect to the knuckle 13 in the radial direction.
[0012]
The hub shaft 3 has a wheel mounting flange portion 3a to which a wheel (not shown) is mounted. The inner ring 5 is fitted to the outer peripheral surface of the hub shaft 3 on the vehicle inner side, and a vehicle inner side end portion of the hub shaft 3 is caulked to the end surface of the inner ring 5 and fixed to the hub shaft 3. The annular space between the outer ring 2 and the inner ring 5 is sealed by seals 16 and 17 mounted on the vehicle outer side and the vehicle inner side, respectively.
[0013]
The side surface 11 c of the vehicle body mounting flange portion 11 serves as a contact surface that contacts the side surface 13 a of the knuckle 13, and the outer peripheral surface 12 a of the spigot portion 12 serves as a contact surface that contacts the inner diameter surface 13 b of the knuckle 13. An electrically insulating insulating film 15 is attached to the entire contact surface. Specifically, the insulating film 15 is formed by integrally coating an electrically insulating resin, preferably a fluorine-based resin, by spraying, brushing, or other application.
[0014]
The inlay portion 12 of the outer ring 2 is fitted to a knuckle 13 of the vehicle body via an insulating film 15. The vehicle body mounting flange portion 11 is in contact with the knuckle 13 via the insulating film 15. Such an outer ring 2 is fastened and fixed to the knuckle 13 of the vehicle body by the bolt 9 inserted through the knuckle 13 being screwed into the female threaded portion 10 of the protrusion 11b of the vehicle body mounting flange portion 11. Thus, the vehicle body mounting flange portion 11 and the knuckle 13 are brought into close contact with each other through the insulating film 15.
[0015]
In the above-described structure, since the insulating film 15 is integrally coated on the vehicle body mounting flange portion 11 and the inlay portion 12, the vehicle body mounting flange portion 11 and the inlay portion 12 are the metal materials constituting them. There is no longer any direct contact with the knuckle 13 made of a metal material having a different ionization tendency, and it is possible to prevent electrolytic corrosion due to the difference of the metal material from the knuckle 13 with respect to the body mounting flange portion 11 and the like, and the insulating film 15 has a packing action. It is also possible to exhibit an accompanying effect that can prevent rainwater or the like from entering the contact surface between the outer ring 2 and the knuckle 13 and rusting the outer ring.
[0016]
When the outer ring 2 is attached to the knuckle 13 of the vehicle body, the insulating film 15 is formed by coating the body attachment flange portion 11 and the inlay portion 12 of the outer ring 2 in advance by coating. The number of parts for preventing electrolytic corrosion is not increased, the number of assembling steps between the outer ring 2 and the knuckle 13 is reduced, and the assembling work can be speeded up and the cost can be reduced.
[0017]
Since the insulating film 15 is formed by application means such as spraying, a conventional pre-masking process is unnecessary, and a simple and inexpensive film formation is achieved.
[0018]
In addition, the shape of the flange portion 11 for mounting the vehicle body of the outer ring 2 is not limited to a disc shape or the like, and may be a shape that can be attached to the vehicle body. The inlay portion 12 of the outer ring 2 may be composed of a plurality of cylindrical portions having different diameters so that the tip side has a small diameter, in addition to a cylinder having the same diameter. In such a case, the inner ring surface 12b of the knuckle 13 is fitted. An insulating film 15 is formed on the large diameter cylindrical portion to be joined. Moreover, the spigot part 12 may be a separate member from the cylindrical part 8. Further, when the inlay portion 12 is made of such another member and is made of, for example, a hard resin that does not require the insulating film 15 or the same material as the knuckle 13, the insulating film is formed only on the flange portion 11 for mounting the vehicle body. 15 is formed.
[0019]
The mounted portion of the vehicle body is not limited to the knuckle 13 and may be any member or part that supports the rolling bearing device on the vehicle body side. Moreover, the rolling bearing device in which the outer ring 2 side is a rotating wheel and the inner ring 5 side is a fixed ring. It is also applicable to. In such a case, a body mounting flange portion is provided on the inner ring 5 side.
[0020]
As described with reference to FIG. 5, the insulating film 15 may be composed of a heat-shrinkable film, and the heat-shrinkable film may be heat-shrinked and attached to the outer ring 2. One end side of the insulating film 15 is extended to the vehicle outer side of the protrusion 11b so as to cover the outer periphery of the protrusion 11b of the vehicle body mounting flange 11 of the outer ring 2. In this way, the insulating film 15 is firmly attached to the vehicle body mounting flange portion 11 by covering the outer peripheral portion of the protrusion 11 b on one end side of the insulating film 15.
[0021]
【The invention's effect】
The present invention can prevent the occurrence of the electrolytic corrosion described above with an inexpensive configuration.
[Brief description of the drawings]
1 is an overall cross-sectional view of a rolling bearing device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the outer ring of FIG. 1 taken along line (2)-(2). FIG. 4 is a cross-sectional perspective view showing the main part of the outer ring of the rolling bearing device. FIG. 4 is a cross-sectional view showing the main part of the outer ring and the knuckle attached. FIG. 5 is a cross-sectional view of the main part corresponding to FIG. [Explanation of symbols]
2 Outer ring (fixed ring)
11 Body mounting flange 15 Insulating film

Claims (2)

車体取付用フランジ部を有する固定輪を備え、前記車体取付用フランジ部が軽合金とはイオン化傾向が異なる金属材からなる車輪用転がり軸受装置において、前記車体取付用フランジ部における車体側の被取付部との接触面に、絶縁膜が付着されている、車輪用転がり軸受装置。In a rolling bearing device for a wheel comprising a stationary wheel having a flange for mounting a vehicle body, wherein the flange for mounting the vehicle body is made of a metal material having a different ionization tendency from that of a light alloy. A rolling bearing device for a wheel, wherein an insulating film is attached to a contact surface with the part. 前記絶縁膜が、ふっ素系樹脂を噴霧することにより得られた膜からなる請求項１に記載の車輪用転がり軸受装置。The rolling bearing device for a wheel according to claim 1, wherein the insulating film is made of a film obtained by spraying a fluorine-based resin.
JP2003190974A 2003-07-03 2003-07-03 Rolling bearing device for wheels Expired - Fee Related JP4449356B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003190974A JP4449356B2 (en) 2003-07-03 2003-07-03 Rolling bearing device for wheels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003190974A JP4449356B2 (en) 2003-07-03 2003-07-03 Rolling bearing device for wheels

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Publication Number Publication Date
JP2005022541A true JP2005022541A (en) 2005-01-27
JP4449356B2 JP4449356B2 (en) 2010-04-14

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005059386A1 (en) * 2003-12-16 2005-06-30 Ntn Corporation Rolling bearing
JP2007062587A (en) * 2005-08-31 2007-03-15 Nsk Ltd Rolling bearing unit for wheel support
JP2007091078A (en) * 2005-09-29 2007-04-12 Ntn Corp Bearing device for wheel
JP2007145203A (en) * 2005-11-29 2007-06-14 Ntn Corp Bearing device for wheel
JP2008044534A (en) * 2006-08-17 2008-02-28 Ntn Corp Bearing device for wheel
JP2010000907A (en) * 2008-06-20 2010-01-07 Ntn Corp Bearing device for wheel
ITTO20120359A1 (en) * 2012-04-23 2013-10-24 Skf Ab ANULAR ELEMENT OF A HUB-BEARING GROUP FOR THE WHEEL OF A MOTOR VEHICLE, AND PROCEDURE FOR ITS MANUFACTURING

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005059386A1 (en) * 2003-12-16 2005-06-30 Ntn Corporation Rolling bearing
US7524115B2 (en) 2003-12-16 2009-04-28 Ntn Corporation Rolling bearing
JP2007062587A (en) * 2005-08-31 2007-03-15 Nsk Ltd Rolling bearing unit for wheel support
JP2007091078A (en) * 2005-09-29 2007-04-12 Ntn Corp Bearing device for wheel
JP2007145203A (en) * 2005-11-29 2007-06-14 Ntn Corp Bearing device for wheel
JP2008044534A (en) * 2006-08-17 2008-02-28 Ntn Corp Bearing device for wheel
JP2010000907A (en) * 2008-06-20 2010-01-07 Ntn Corp Bearing device for wheel
ITTO20120359A1 (en) * 2012-04-23 2013-10-24 Skf Ab ANULAR ELEMENT OF A HUB-BEARING GROUP FOR THE WHEEL OF A MOTOR VEHICLE, AND PROCEDURE FOR ITS MANUFACTURING

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