JP2597023Y2 - Rolling bearing unit for semi-floating axle with rotation speed detector - Google Patents
Rolling bearing unit for semi-floating axle with rotation speed detectorInfo
- Publication number
- JP2597023Y2 JP2597023Y2 JP1992082246U JP8224692U JP2597023Y2 JP 2597023 Y2 JP2597023 Y2 JP 2597023Y2 JP 1992082246 U JP1992082246 U JP 1992082246U JP 8224692 U JP8224692 U JP 8224692U JP 2597023 Y2 JP2597023 Y2 JP 2597023Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- axle
- peripheral surface
- raceway
- semi
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】この考案に係る回転速度検出装置
付半浮動式車軸用転がり軸受ユニットは、商用車若しく
は小型トラック等の後輪の車軸を回転自在に支持すると
共に、この車軸の回転速度を検出する為に利用する。BACKGROUND OF THE INVENTION A rolling bearing unit for a semi-floating axle with a rotational speed detecting device according to the present invention rotatably supports a rear axle of a commercial vehicle or a small truck, and has a rotational speed of the axle. Used to detect.
【０００２】[0002]
【従来の技術】通常のＦＲ車（前置エンジン・後輪駆動
車）で駆動輪が非独立懸架の場合に於ける後車軸、ＦＦ
車（前置エンジン・前輪駆動車）で非駆動輪が非独立懸
架の場合に於ける後車軸、或はフォークリフトやショベ
ルローダ等の特殊車両の場合に於ける前車軸は、車体の
床下面にばねを介して支持された車軸管の内側に、玉軸
受、円錐ころ軸受、円筒ころ軸受等の転がり軸受により
回転自在に支持されている。2. Description of the Related Art A rear axle, FF in a normal FR vehicle (front engine / rear wheel drive vehicle) when the drive wheels are non-independently suspended.
The rear axle in the case of a car (front engine / front wheel drive vehicle) where the non-drive wheels are non-independently suspended, or the front axle in the case of special vehicles such as forklifts and shovel loaders, Rolling bearings such as ball bearings, tapered roller bearings, and cylindrical roller bearings are rotatably supported inside the axle tube supported via a spring.
【０００３】例えば図３に示した構造は、ＦＲ車に於け
る後車軸を、車軸管に対し回転自在に支持する部分の従
来構造として、特開平１−２８８６１９号公報に記載さ
れたものを示している。リーフスプリング等を介して自
動車の床下面に支持された車軸管１は、一端を差動装置
（デファレンシャルギヤ）のケーシングに結合し、他端
開口部に軸受装置を設けている。For example, the structure shown in FIG. 3 shows a conventional structure of a portion for rotatably supporting a rear axle of an FR vehicle with respect to an axle tube as described in Japanese Patent Laid-Open No. 1-288619. ing. The axle tube 1 supported on the lower surface of the vehicle via a leaf spring or the like has one end connected to a casing of a differential device (differential gear), and a bearing device provided at the other end opening.
【０００４】車軸管１の開口端部に溶接固定した円筒状
の軸受ハウジング２に、玉軸受３を構成する外輪４を内
嵌すると共に、前記差動装置に一端を結合し、上記車軸
管１を挿通した車軸５に、上記玉軸受３を構成する内輪
６を外嵌している。外輪４内周面の外輪軌道７と内輪６
外周面の内輪軌道８との間には、複数の玉９、９を装着
して、上記車軸管１の内側での車軸５の回転を自在とし
ている。[0004] An outer ring 4 constituting a ball bearing 3 is fitted in a cylindrical bearing housing 2 welded and fixed to an open end of the axle tube 1 and one end is connected to the differential device. The inner ring 6 that constitutes the ball bearing 3 is externally fitted to the axle 5 through which is inserted. Outer ring raceway 7 and inner ring 6 on inner peripheral surface of outer ring 4
A plurality of balls 9, 9 are mounted between the outer peripheral surface and the inner raceway 8 so that the axle 5 can rotate freely inside the axle tube 1.
【０００５】更に、一端面（図３の左端面）を軸受ハウ
ジング２の内周面に形成した段部１０に突き当てた外輪
４の他端面（図３の右端面）には、バッキングプレート
（ドラムブレーキの基板となる部材）１１等を介して抑
え蓋１２を突き当て、この抑え蓋１２と上記軸受ハウジ
ング２とを、ボルト１３とナット１４とにより結合し、
外輪４の軸受ハウジング２からの脱落防止を図ってい
る。一方、車軸５の端部外周面に形成した段部１５にそ
の一端面（図３の右端面）を突き当てた内輪６の他端面
（図３の左端面）には、車軸５に外嵌した固定リング１
６の端面を突き当てて、内輪６の位置決めを図ってい
る。Further, a backing plate (right end face in FIG. 3) is provided on the other end face (right end face in FIG. 3) of the outer ring 4 where one end face (left end face in FIG. 3) is abutted against a step portion 10 formed on the inner peripheral face of the bearing housing 2. The holding cover 12 is abutted through a member 11 serving as a substrate of a drum brake), and the holding cover 12 and the bearing housing 2 are connected to each other by bolts 13 and nuts 14.
The outer ring 4 is prevented from falling off the bearing housing 2. On the other hand, one end surface (right end surface in FIG. 3) of the stepped portion 15 formed on the outer peripheral surface of the end portion of the axle 5 is abutted against the other end surface (left end surface in FIG. 3) of the inner race 6. Fixed ring 1
The inner ring 6 is positioned by abutting the end face of the inner ring 6.
【０００６】半浮動式車軸用軸受装置は、上述の様に構
成されるが、アンチロックブレーキシステム（ＡＢＳ）
やトラクションコントロールシステム（ＴＣＳ）を制御
する為、この様な軸受装置により回転自在に支持される
車軸５の回転速度を検出する場合、従来は図４に示す様
に構成していた。[0006] The bearing device for a semi-floating axle, which is constructed as described above, has an antilock brake system (ABS).
In order to control the traction control system (TCS) and to detect the rotation speed of the axle 5 rotatably supported by such a bearing device, the conventional configuration is shown in FIG.
【０００７】図４に於いて１７はトーンホイールで、外
周面に歯車状の凹凸を形成しており、車軸５に外嵌さ
れ、内輪６と固定リング１６との間で挟持された状態
で、この車軸５と共に回転する。又、軸受ハウジング２
の一部で、上記トーンホイール１７の外周面と対向する
位置には取付孔１８を形成している。そして、この取付
孔１８にセンサ１９を、上記軸受ハウジング２の外側か
ら挿入し、このセンサ１９の先端部を上記トーンホイー
ル１７の外周面に対向させている。尚、このセンサ１９
の支持腕２０は、スタッド２１とナット２２との螺合に
基づき、上記軸受ハウジング２の外周面に固定する。In FIG. 4, reference numeral 17 denotes a tone wheel having a gear-shaped unevenness formed on the outer peripheral surface thereof. The tone wheel 17 is fitted on the axle 5 and held between the inner ring 6 and the fixing ring 16. It rotates with this axle 5. Also, bearing housing 2
A mounting hole 18 is formed at a position facing the outer peripheral surface of the tone wheel 17. Then, a sensor 19 is inserted into the mounting hole 18 from the outside of the bearing housing 2, and the tip of the sensor 19 faces the outer peripheral surface of the tone wheel 17. The sensor 19
The support arm 20 is fixed to the outer peripheral surface of the bearing housing 2 based on a screw engagement between the stud 21 and the nut 22.
【０００８】車両の走行に伴なって車軸５に固定したト
ーンホイール１７が回転すると、このトーンホイール１
７の外周面とセンサ１９の先端との距離が変化し、この
センサ１９の出力が変化する。この変化の周波数は、上
記車軸５の回転速度に比例する為、上記センサ１９の出
力信号を図示しない制御器に入力すれば、ＡＢＳやＴＣ
Ｓを制御出来る。When the tone wheel 17 fixed to the axle 5 rotates as the vehicle travels, the tone wheel 1
The distance between the outer peripheral surface of the sensor 7 and the tip of the sensor 19 changes, and the output of the sensor 19 changes. Since the frequency of this change is proportional to the rotation speed of the axle 5, if the output signal of the sensor 19 is input to a controller (not shown), ABS or TC
S can be controlled.
【０００９】[0009]
【考案が解決しようとする課題】本考案の回転速度検出
装置付半浮動式車軸用転がり軸受ユニットは、構成部品
数を少なく抑える事で、部品管理、組立作業の能率化を
図り、製作費を低減させるものである。[Problems to be Solved by the Invention] The rolling bearing unit for a semi-floating axle with a rotation speed detecting device according to the present invention reduces the number of components, thereby improving the efficiency of parts management and assembling work, and reducing production costs. It is to reduce.
【００１０】上記図４に示した従来構造の場合、部品管
理、組立作業が煩雑で、製作費が嵩む原因となってい
た。特に、自動車の組立ライン中に、軸受ハウジング２
の内端部（直径方向を指す場合を除き、内とは自動車の
幅方向中央寄り部分を言い、各図の左。反対に外とは自
動車の幅方向外側を言い、各図の右。本明細書全体で同
じ。）と車軸管１の外端部とを溶接する作業を組み込む
事は、ラインの流れを円滑化する面から、好ましくな
い。In the case of the conventional structure shown in FIG. 4, parts management and assembling work are complicated, resulting in an increase in manufacturing costs. In particular, during an automobile assembly line, the bearing housing 2
The inner end of the car (except in the diametric direction, inside means the part near the center of the car in the width direction, left of each figure; conversely, outside means the outside of the car in the width direction, right of each figure. It is not preferable to incorporate an operation of welding the outer end of the axle tube 1 to the entire specification.
【００１１】組立ライン中に溶接作業を組み込まない様
に、予め車軸管１と軸受ハウジング２とを溶接しておく
事も考えられるが、この様にすると、多数の構成部品を
軸受ハウジング２に組み付ける作業を、組立ライン中で
行なわなければならなくなり、やはりラインの流れを悪
くしてしまう。It is conceivable to weld the axle tube 1 and the bearing housing 2 in advance so as not to incorporate a welding operation into the assembly line. In this case, a large number of components are assembled to the bearing housing 2. The work must be performed in the assembly line, which again deteriorates the flow of the line.
【００１２】この様な事情を考慮して、特開平２−６０
８０２号公報には、図５に示す様に、外輪４の外周面に
取付フランジ２４を、この外輪４と一体に形成すると共
に、車軸管１の外端部に受フランジ２５を固設し、この
受フランジ２５と上記取付フランジ２４とをボルト・ナ
ットにより結合する構造が提案されている。Considering such circumstances, Japanese Patent Laid-Open No. 2-60 / 1990
In the publication No. 802, as shown in FIG. 5, a mounting flange 24 is formed integrally with the outer peripheral surface of the outer ring 4 and a receiving flange 25 is fixedly provided at an outer end of the axle tube 1. A structure has been proposed in which the receiving flange 25 and the mounting flange 24 are connected by bolts and nuts.
【００１３】ところが、上記公報に記載された構造は、
単に外輪４と車軸管１端部との結合作業の容易化を図っ
ただけのものであって、車輪の回転速度検出装置を含ん
だ構造の簡素化を図るものではない。例えば、単に図５
に示した構造と図４に示した構造とを組み合わせたとし
ても、部品管理、組立作業の簡略化を十分に図る事は出
来ない。However, the structure described in the above publication is
This is merely for facilitating the connection work between the outer ring 4 and the end of the axle tube 1, and is not intended to simplify the structure including the wheel rotational speed detecting device. For example, FIG.
Even if the structure shown in FIG. 4 is combined with the structure shown in FIG. 4, the parts management and the assembling work cannot be sufficiently simplified.
【００１４】本考案の回転速度検出装置付半浮動式車軸
用転がり軸受ユニットは、上述の様な事情に鑑みて考案
されたものである。The rolling bearing unit for a semi-floating axle with a rotation speed detecting device according to the present invention has been devised in view of the above-mentioned circumstances.
【００１５】[0015]
【課題を解決する為の手段】本考案の回転速度検出装置
付半浮動式車軸用転がり軸受ユニットは、内周面に外輪
軌道を有する外輪と、この外輪の外周面に一体形成され
た状態で、車軸管外端部の受フランジと接合自在な取付
フランジと、外周面に内輪軌道を有する内輪と、上記内
輪軌道と外輪軌道との間に設けられた複数の転動体と、
上記内輪の外端部で上記内輪軌道から外れた部分に固定
されたトーンホイールと、上記外輪の外端開口部に固定
され、その内周縁を上記内輪の内側に挿通される車軸の
外周面に近接自在とした保持環と、この保持環に保持さ
れて、その検出部を上記トーンホイールに対向させたセ
ンサとを備えている。SUMMARY OF THE INVENTION A rolling bearing unit for a semi-floating axle with a rotation speed detecting device according to the present invention comprises an outer ring having an outer ring raceway on an inner peripheral surface and a state integrally formed on the outer peripheral surface of the outer ring. A mounting flange that can be joined to a receiving flange at the outer end of the axle tube, an inner ring having an inner raceway on the outer peripheral surface, and a plurality of rolling elements provided between the inner raceway and the outer raceway;
A tone wheel fixed to a portion deviated from the inner raceway at an outer end of the inner race and an outer peripheral surface of an axle fixed to an outer end opening of the outer race and having an inner peripheral edge inserted inside the inner race. It has a holding ring that can be approached freely, and a sensor that is held by the holding ring and whose detection unit is opposed to the tone wheel.
【００１６】[0016]
【作用】上述の様に構成される、本考案の回転速度検出
装置付半浮動式車軸用転がり軸受ユニットにより、車軸
の端部に固定された車輪の回転速度を検出する際の作用
自体は、前述した従来構造の場合と同様である。The operation of detecting the rotational speed of the wheel fixed to the end of the axle by the semi-floating axle rolling bearing unit with the rotational speed detecting device of the present invention configured as described above is as follows. This is the same as the case of the conventional structure described above.
【００１７】特に、本考案の回転速度検出装置付半浮動
式車軸用転がり軸受ユニットの場合、部品点数を減少す
る事により、部品管理、組立作業を簡略化し、製作費の
低減を図れる。In particular, in the case of the rolling bearing unit for a semi-floating axle with a rotation speed detecting device of the present invention, the number of parts is reduced, so that parts management and assembling work can be simplified and manufacturing costs can be reduced.
【００１８】[0018]
【実施例】図１は本考案の第一実施例を示している。内
周面に外輪軌道７を設けた外輪４の外周面には取付フラ
ンジ２４を、鍛造加工により、上記外輪４と一体に形成
している。そして、この取付フランジ２４と、車軸管１
の外端部に溶接固定した受フランジ２５とを、バッキン
グプレート１１と共に、ボルト２６とナット２７とによ
り結合している。車軸管１と受フランジ２５とは予め溶
接しておく。FIG. 1 shows a first embodiment of the present invention. A mounting flange 24 is integrally formed on the outer peripheral surface of the outer race 4 having the outer raceway 7 provided on the inner peripheral surface by forging. The mounting flange 24 and the axle tube 1
And a receiving flange 25 welded and fixed to the outer end portion of the base member together with the backing plate 11 by bolts 26 and nuts 27. The axle tube 1 and the receiving flange 25 are welded in advance.
【００１９】一方、上記車軸管１内に挿入された車軸５
には、外周面に内輪軌道８を有する内輪６を外嵌固定し
ている。即ち、この内輪６の外端面（図１の右端面）
を、上記車軸５の外周面に形成した段部２８と、この車
軸５に外嵌した固定リング１６との間で挟持している。On the other hand, an axle 5 inserted into the axle tube 1
, An inner ring 6 having an inner ring raceway 8 on the outer peripheral surface is externally fitted and fixed. That is, the outer end surface of the inner ring 6 (the right end surface in FIG. 1).
Is held between a stepped portion 28 formed on the outer peripheral surface of the axle 5 and a fixing ring 16 fitted to the axle 5.
【００２０】上記内輪軌道８と外輪軌道７との間には複
数個の玉９、９を設けて、上記外輪４の内側での内輪６
の回転を自在とし、上記車軸５を車軸管１の内側に、回
転自在に支持している。車輪は、上記車軸管５の外端部
に固設されたフランジ２９に固定される。A plurality of balls 9, 9 are provided between the inner raceway 8 and the outer raceway 7, and the inner race 6 inside the outer race 4 is provided.
The axle 5 is rotatably supported inside the axle tube 1. The wheels are fixed to a flange 29 fixed to the outer end of the axle tube 5.
【００２１】又、上記外輪４の外端部内周面と上記内輪
６の外端部外周面との間で、上記外輪軌道７及び内輪軌
道８から外れた部分には、シール組立３０を設けてい
る。そして、このシール組立３０によって、塵芥や雨水
が上記玉９、９設置部分に進入するのを防止すると共
に、この玉９、９設置部分に存在するグリースが外部に
漏洩するのを防止している。A seal assembly 30 is provided between the inner peripheral surface of the outer end of the outer race 4 and the outer peripheral surface of the outer end of the inner race 6 at a position deviating from the outer raceway 7 and the inner raceway 8. I have. The seal assembly 30 prevents dust and rainwater from entering the ball 9, 9 installation portion, and also prevents grease existing in the ball 9, 9 installation portion from leaking to the outside. .
【００２２】上記シール組立３０は、外輪４に内嵌固定
された外側シール環３１と、内輪６に外嵌固定された内
側シール環３２とを組み合わせて成る。各シール環３
１、３２はそれぞれ、金属板を断面Ｌ字形に折り曲げて
全体を円環状とした芯金３３ａ、３３ｂと、この芯金３
３ａ、３３ｂに添着した、ゴム等の弾性材製のシール材
３４ａ、３４ｂとから構成される。そして、外側シール
環３１を構成するシール材３４ａの端縁を、内側シール
環３２を構成する芯金３３ｂに、内側シール環３２を構
成するシール材３４ｂの端縁を、外側シール環３１を構
成する芯金３３ａに、それぞれ摺接させている。The seal assembly 30 is composed of an outer seal ring 31 internally fixed to the outer ring 4 and an inner seal ring 32 externally fixed to the inner ring 6. Each seal ring 3
Reference numerals 1 and 32 denote metal cores 33a and 33b, respectively, which are formed by bending a metal plate into an L-shaped cross section to form an entire ring shape.
3a, 33b, and sealing materials 34a, 34b made of an elastic material such as rubber. The outer edge of the seal material 34a forming the outer seal ring 31 is formed on the core metal 33b forming the inner seal ring 32. The outer edge of the seal material 34b forming the inner seal ring 32 is formed on the outer seal ring 31. The metal cores 33a are slidably contacted with each other.
【００２３】又、上記内側シール環３２を構成する芯金
３３ｂの外側面には、トーンホイール３５を添着してい
る。このトーンホイール３５は、円輪状の磁性金属板の
円周方向に亙って多数の透孔３６、３６若しくは切り欠
きを、等間隔で形成する事により、円周方向に亙る磁気
特性を交互に変えたものである。A tone wheel 35 is attached to the outer surface of the core bar 33b constituting the inner seal ring 32. The tone wheel 35 has a number of through holes 36, 36 or cutouts formed at regular intervals in the circumferential direction of the annular magnetic metal plate, so that the magnetic characteristics in the circumferential direction are alternately formed. It has changed.
【００２４】一方、上記外輪４の外端開口部には、保持
環３７を外嵌固定している。金属板を絞り成形する事
で、断面Ｌ字形で全体を円環状とされた保持環３７の内
径Ｒは、上記車軸５の一部で、この保持環３７の内周縁
が対向する部分の外径Ｄよりも少し（例えば２mm程度）
大きく（Ｒ＝Ｄ＋２mm）形成している。On the other hand, a holding ring 37 is externally fitted and fixed to the outer end opening of the outer race 4. The inner diameter R of the holding ring 37, which is formed by drawing a metal plate and having an L-shaped cross section and an annular shape as a whole, is an outer diameter of a part of the axle 5 where the inner peripheral edge of the holding ring 37 faces. Smaller than D (for example, about 2 mm)
It is formed large (R = D + 2 mm).
【００２５】従って、回転速度検出装置付半浮動式車軸
用転がり軸受ユニットを組み立てた状態で上記内周縁と
車軸５の外周面との間には、幅が１mm程度の微小隙間が
形成される。即ち、上記保持環３７は、次述するセンサ
１９を保持する機能の他、ダストカバーとしての機能を
持ち、このセンサ１９部分への、塵芥や雨水の進入防止
を図る。Accordingly, a small gap having a width of about 1 mm is formed between the inner peripheral edge and the outer peripheral surface of the axle 5 in a state where the rolling bearing unit for a semi-floating axle with the rotational speed detecting device is assembled. That is, the holding ring 37 has a function as a dust cover in addition to a function to hold the sensor 19 described below, and prevents dust and rainwater from entering the sensor 19 portion.
【００２６】上記保持環３７にはセンサ１９を保持し、
このセンサ１９の検出部を上記トーンホイール３５の外
側面に、微小隙間（例えば０．５〜１mm以下）を介して
対向させている。The holding ring 37 holds the sensor 19,
The detecting portion of the sensor 19 is opposed to the outer surface of the tone wheel 35 via a minute gap (for example, 0.5 to 1 mm or less).
【００２７】一方、上記外輪４の内端部内周面にはシー
ル環３８の外周縁を支持し、このシール環３８の内周縁
を上記内輪６の内端部外周面に摺接させている。このシ
ール環３８は、玉９、９設置部分のグリースの漏洩防止
に寄与する。更に、前記受フランジ２５の内周面に内嵌
支持したシール環３９の内周縁を、前記固定リング１６
の外周面に摺接させている。このシール環３９は、車軸
管１内を浮遊するデファレンシャルオイルが上記玉９、
９設置部分に達するのを防止する。On the other hand, the outer peripheral edge of the seal ring 38 is supported on the inner peripheral surface of the inner end of the outer race 4, and the inner peripheral edge of the seal ring 38 is slidably contacted with the outer peripheral surface of the inner end of the inner race 6. The seal ring 38 contributes to preventing grease from leaking from the portion where the balls 9 and 9 are installed. Further, the inner peripheral edge of the seal ring 39 which is fitted and supported on the inner peripheral surface of the receiving flange 25 is fixed to the fixing ring 16.
Is in sliding contact with the outer peripheral surface. The seal ring 39 is formed by the differential oil floating in the axle tube 1 and the ball 9,
9 Prevent reaching the installation part.
【００２８】上述の様に構成される、本考案の回転速度
検出装置付半浮動式車軸用転がり軸受ユニットにより、
車輪の回転速度を検出する場合の作用は、次の通りであ
る。車両の走行に伴なって車軸５と共に内輪６が回転す
ると、この内輪６の外周面に外嵌固定した内側シール環
３２に付属のトーンホイール３５が回転し、このトーン
ホイール３５の外側面とセンサ１９の先端との距離が変
化する。この結果、センサ１９の出力が、上記車軸５の
回転速度に比例した周波数で変化する。The semi-floating axle rolling bearing unit with the rotation speed detecting device of the present invention, which is configured as described above,
The operation when detecting the rotation speed of the wheel is as follows. When the inner ring 6 rotates together with the axle 5 as the vehicle travels, the tone wheel 35 attached to the inner seal ring 32 fitted and fixed to the outer peripheral surface of the inner ring 6 rotates, and the outer surface of the tone wheel 35 and the sensor are rotated. The distance from the tip of 19 changes. As a result, the output of the sensor 19 changes at a frequency proportional to the rotation speed of the axle 5.
【００２９】特に、本考案の回転速度検出装置付半浮動
式車軸用転がり軸受ユニットの場合、部品点数を減少す
ると共に、組立ライン中での溶接作業を不要にする事に
より、部品管理、組立作業を簡略化し、製作費の低減を
図れる。In particular, in the case of the rolling bearing unit for a semi-floating axle with a rotation speed detecting device according to the present invention, the number of parts is reduced and the need for welding work in an assembly line is eliminated. Can be simplified, and the production cost can be reduced.
【００３０】次に、図２は本考案の第二実施例を示して
いる。本実施例の場合、外輪４の内端部内周面と内輪６
の内端部外周面との間にも、外側シール環３１ａと内側
シール環３２ａとから成るシール組立３０ａを装着して
いる。このシール組立３０ａのシール性は、第一実施例
に於けるシール環３８よりも優れている。その分、第一
実施例に於けるシール環３９を省略している。従って、
前記第一実施例に於いてこのシール環３９の内周縁と摺
接している固定リング１６の外周面を研削仕上する必要
はない。その他の構成及び作用は、前述した第一実施例
と同様である為、同等部分には同一符号を付して重複す
る説明を省略する。FIG. 2 shows a second embodiment of the present invention. In the case of this embodiment, the inner peripheral surface of the inner end portion of the outer race 4 and the inner race 6
A seal assembly 30a comprising an outer seal ring 31a and an inner seal ring 32a is also mounted between the inner end ring and the outer peripheral surface. The sealability of the seal assembly 30a is better than the seal ring 38 in the first embodiment. Accordingly, the seal ring 39 in the first embodiment is omitted. Therefore,
In the first embodiment, it is not necessary to finish the outer peripheral surface of the fixed ring 16 which is in sliding contact with the inner peripheral edge of the seal ring 39. Other configurations and operations are the same as those of the first embodiment described above, and therefore, the same reference numerals are given to the same parts, and the duplicate description will be omitted.
【００３１】[0031]
【考案の効果】本考案の回転速度検出装置付半浮動式車
軸用転がり軸受ユニットは、以上に述べた通り構成され
作用する為、部品点数の減少に伴ない、部品管理、組立
作業の簡易化、部品製作の容易化による低廉化を図れ
る。[Effects of the Invention] The rolling bearing unit for a semi-floating axle with a rotation speed detecting device according to the present invention is constructed and operates as described above, so that the number of parts is reduced, and the parts management and assembly work are simplified. In addition, the cost can be reduced by facilitating the production of parts.
【図１】本考案の第一実施例を示す断面図。FIG. 1 is a sectional view showing a first embodiment of the present invention.
【図２】同第二実施例を示す断面図。FIG. 2 is a sectional view showing the second embodiment.
【図３】従来の半浮動式車軸の軸受装置を示す断面図。FIG. 3 is a cross-sectional view showing a conventional bearing device for a semi-floating axle.
【図４】従来の半浮動式車軸の軸受装置に回転速度検出
センサを組み込んだ状態を示す断面図。FIG. 4 is a cross-sectional view showing a state in which a rotation speed detection sensor is incorporated in a conventional bearing device for a semi-floating axle.
【図５】従来の半浮動式車軸の軸受装置の別例を示す断
面図。FIG. 5 is a sectional view showing another example of a conventional bearing device for a semi-floating axle.
１ 車軸管 ２ 軸受ハウジング ３ 玉軸受 ４ 外輪 ５ 車軸 ６ 内輪 ７ 外輪軌道 ８ 内輪軌道 ９ 玉 １０ 段部 １１ バッキングプレート １２ 抑え蓋 １３ ボルト １４ ナット １５ 段部 １６ 固定リング １７ トーンホイール １８ 取付孔 １９ センサ ２０ 支持腕 ２１ スタッド ２２ ナット ２３、２４ 取付フランジ ２５ 受フランジ ２６ ボルト ２７ ナット ２８ 段部 ２９ フランジ ３０、３０ａ シール組立 ３１、３１ａ 外側シール環 ３２、３２ａ 内側シール環 ３３ａ、３３ｂ 芯金 ３４ａ、３４ｂ シール材 ３５ トーンホイール ３６ 透孔 ３７ 保持環 ３８、３９ シール環 DESCRIPTION OF SYMBOLS 1 Axle tube 2 Bearing housing 3 Ball bearing 4 Outer ring 5 Axle 6 Inner ring 7 Outer ring raceway 8 Inner ring raceway 9 Ball 10 Stepped portion 11 Backing plate 12 Holding lid 13 Bolt 14 Nut 15 Stepped portion 16 Fixing ring 17 Tone wheel 18 Mounting hole 19 Sensor Reference Signs List 20 support arm 21 stud 22 nut 23, 24 mounting flange 25 receiving flange 26 bolt 27 nut 28 step 29 flange 30, 30a seal assembly 31, 31a outer seal ring 32, 32a inner seal ring 33a, 33b core metal 34a, 34b seal Material 35 Tone wheel 36 Through hole 37 Holding ring 38, 39 Seal ring
Claims (1)
外輪の外周面に一体形成された状態で、車軸管外端部の
受フランジと接合自在な取付フランジと、外周面に内輪
軌道を有する内輪と、上記内輪軌道と外輪軌道との間に
設けられた複数の転動体と、上記内輪の外端部で上記内
輪軌道から外れた部分に固定されたトーンホイールと、
上記外輪の外端開口部に固定され、その内周縁を上記内
輪の内側に挿通される車軸の外周面に近接自在とした保
持環と、この保持環に保持されて、その検出部を上記ト
ーンホイールに対向させたセンサとを備えた回転速度検
出装置付半浮動式車軸用転がり軸受ユニット。1. An outer ring having an outer raceway on an inner peripheral surface, a mounting flange integrally formed on the outer peripheral surface of the outer race and being connectable to a receiving flange at an outer end of an axle tube, and an inner raceway on an outer peripheral surface. An inner ring having a plurality of rolling elements provided between the inner raceway and the outer raceway, and a tone wheel fixed to a portion deviated from the inner raceway at an outer end of the inner race,
A retaining ring fixed to an outer end opening of the outer ring, the inner peripheral edge of which is freely accessible to the outer peripheral surface of an axle inserted inside the inner ring; A rolling bearing unit for a semi-floating axle with a rotation speed detecting device, comprising a sensor opposed to a wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992082246U JP2597023Y2 (en) | 1992-11-05 | 1992-11-05 | Rolling bearing unit for semi-floating axle with rotation speed detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992082246U JP2597023Y2 (en) | 1992-11-05 | 1992-11-05 | Rolling bearing unit for semi-floating axle with rotation speed detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0640447U JPH0640447U (en) | 1994-05-31 |
| JP2597023Y2 true JP2597023Y2 (en) | 1999-06-28 |
Family
ID=13769078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992082246U Expired - Fee Related JP2597023Y2 (en) | 1992-11-05 | 1992-11-05 | Rolling bearing unit for semi-floating axle with rotation speed detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2597023Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011145578A1 (en) * | 2010-05-17 | 2011-11-24 | Ntn株式会社 | Bearing device for wheel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4811734B2 (en) * | 2007-04-05 | 2011-11-09 | 株式会社ジェイテクト | Wheel support device |
-
1992
- 1992-11-05 JP JP1992082246U patent/JP2597023Y2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011145578A1 (en) * | 2010-05-17 | 2011-11-24 | Ntn株式会社 | Bearing device for wheel |
| CN102939208A (en) * | 2010-05-17 | 2013-02-20 | Ntn株式会社 | Bearing device for wheel |
| CN102939208B (en) * | 2010-05-17 | 2015-07-08 | Ntn株式会社 | Bearing device for wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0640447U (en) | 1994-05-31 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |