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JP2014037196A - Wheel bearing device - Google Patents

Wheel bearing device Download PDF

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Publication number
JP2014037196A
JP2014037196A JP2012179872A JP2012179872A JP2014037196A JP 2014037196 A JP2014037196 A JP 2014037196A JP 2012179872 A JP2012179872 A JP 2012179872A JP 2012179872 A JP2012179872 A JP 2012179872A JP 2014037196 A JP2014037196 A JP 2014037196A
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Japan
Prior art keywords
bearing
ring
wheel
insertion hole
peripheral surface
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Pending
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JP2012179872A
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Japanese (ja)
Inventor
Shigeru Inoue
茂 井上
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JTEKT Corp
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JTEKT Corp
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Priority to JP2012179872A priority Critical patent/JP2014037196A/en
Publication of JP2014037196A publication Critical patent/JP2014037196A/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
    • 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
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race 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
    • F16C33/72—Sealings
    • F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
    • 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
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles

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

Abstract

【課題】固定用軌道輪とナックルとの間での錆の発生を抑制して車体側部材からの固定用軌道輪の引き抜き操作を円滑に行うことができる車輪用軸受装置を提供する。
【解決手段】車輪用軸受装置において、パルサーリング２０１を覆い、ナックル９における軸受挿入孔９ａの内周面に取り付けられたキャップ状のカバー部材３００と、カバー部材３００の外周面と軸受挿入孔９ａの内周面との間に介在する空隙ｇ１を封止する第１のシール４０１材、及び軸受挿入孔９ａの車輪側開口周縁９０ａと外輪３の車体側端面（車体取付用フランジ３ｄの車体側端面３０ｄ）との間に介在する空隙ｇ２を封止する第２のシール材４０２を有するシール機構４００とを備えた。
【選択図】図２The present invention provides a wheel bearing device capable of smoothly performing a pulling-out operation of a fixing raceway from a vehicle body side member by suppressing generation of rust between the fixing raceway and a knuckle.
In a wheel bearing device, a cap-shaped cover member 300 that covers a pulsar ring 201 and is attached to an inner peripheral surface of a bearing insertion hole 9a in a knuckle 9, an outer peripheral surface of the cover member 300, and a bearing insertion hole 9a. the first seal 401 material, and the body of the wheel-side opening peripheral edge 90a and the vehicle body-side end surface of the outer ring 3 (vehicle body mounting flange 3d of the bearing insertion hole 9a of sealing the gap g 1 interposed between the inner peripheral surface of the and a sealing mechanism 400 having a second sealing member 402 for sealing the gap g 2 interposed between the side end surface 30d).
[Selection] Figure 2

Description

本発明は、自動車等における車輪の回転速度を回転速度検出用の固定部材と共に検出する回転速度検出用の回転部材を備えた車輪用軸受装置に関する。   The present invention relates to a wheel bearing device including a rotation member for detecting rotation speed that detects a rotation speed of a wheel in an automobile or the like together with a fixing member for detecting rotation speed.

従来の車輪用軸受装置として、中心軸線の回りに回転するハブ輪と、ハブ輪を車体側に回転可能に支持する玉軸受と、玉軸受の回転用軌道輪と共に回転する車軸の回転速度を検出する回転速度検出器とを備え、車体側部材（ナックル）と車輪との間に介在して配置されているものがある（例えば特許文献１）。   As a conventional wheel bearing device, a hub wheel that rotates around the central axis, a ball bearing that rotatably supports the hub wheel on the vehicle body side, and the rotational speed of the axle that rotates together with the bearing ring for rotation of the ball bearing are detected. There is a rotating speed detector that is disposed between a vehicle body side member (knuckle) and a wheel (for example, Patent Document 1).

玉軸受は、内外２つの軌道輪（内輪及び外輪）と、内輪と外輪との間に介在する転動体とを有し、ナックルにその軸受挿入孔に外輪を挿入した状態で取り付けられている。   The ball bearing has two inner and outer race rings (an inner ring and an outer ring) and a rolling element interposed between the inner ring and the outer ring, and is attached to the knuckle with the outer ring inserted into the bearing insertion hole.

回転速度検出器は、回転速度センサ及び磁気エンコーダを有し、車体側及び車輪側に配置されている。回転速度センサはナックルのセンサ挿入孔に挿通して、また磁気エンコーダは内輪の外周面にスリンガを介してそれぞれ取り付けられている。   The rotational speed detector includes a rotational speed sensor and a magnetic encoder, and is disposed on the vehicle body side and the wheel side. The rotational speed sensor is inserted through the sensor insertion hole of the knuckle, and the magnetic encoder is attached to the outer peripheral surface of the inner ring via a slinger.

このような車輪用軸受装置においては、装置交換を行う場合にナックルから外輪が軸受挿入孔から引き抜かれる。   In such a wheel bearing device, the outer ring is pulled out from the knuckle through the bearing insertion hole when the device is replaced.

特開２０１２−１２１３９０号公報JP 2012-121390 A

ところで、特許文献１に示す車輪用軸受装置によると、外輪の外周面とナックル（軸受挿入孔）の内周面との間に浸入する泥水（例えば車輪側からの泥水）等に起因してナックル及び外輪が錆付いて互いに固着し、外輪の軸受挿入孔からの引き抜き操作を円滑に行うことができない場合がある。   By the way, according to the wheel bearing device shown in Patent Document 1, the knuckle is caused by muddy water (for example, muddy water from the wheel side) entering between the outer peripheral surface of the outer ring and the inner peripheral surface of the knuckle (bearing insertion hole). In some cases, the outer ring rusts and adheres to each other, and the outer ring cannot be smoothly pulled out from the bearing insertion hole.

一方、図５に示すように、玉軸受５００における外輪５０１の外周面とナックル５０２における軸受挿入孔５０２ａの内周面との間にＯリング５０３を、またナックル５０２におけるセンサ挿通孔５０２ｂの内周面と回転速度センサ５０４の外周面との間にＯリング５０５をそれぞれ介在させて外輪５０１の外周面と軸受挿入孔５０２ａの内周面との間への泥水等の浸入を阻止し、泥水等による外輪５０１の外周面と軸受挿入孔５０２ａの内周面との間での錆の発生を抑制することも考えられる。   On the other hand, as shown in FIG. 5, an O-ring 503 is provided between the outer peripheral surface of the outer ring 501 in the ball bearing 500 and the inner peripheral surface of the bearing insertion hole 502a in the knuckle 502, and the inner periphery of the sensor insertion hole 502b in the knuckle 502. O-rings 505 are interposed between the outer peripheral surface of the rotation speed sensor 504 and the outer peripheral surface of the outer ring 501 and the inner peripheral surface of the bearing insertion hole 502a to prevent intrusion of muddy water. It is also conceivable to suppress the occurrence of rust between the outer peripheral surface of the outer ring 501 and the inner peripheral surface of the bearing insertion hole 502a.

しかし、このような場合にも、回転速度センサ５０４の組付時あるいは交換時にＯリング５０５が損傷すると、この損傷部分から泥水等が外輪５０１の外周面と軸受挿入孔５０２ａの内周面との間に浸入し、この泥水等に起因して外輪５０１の外周面と軸受挿入孔５０２ａの内周面との間に錆が発生する虞があり、上記した場合と同様の不具合、すなわち外輪の軸受挿入孔からの引き抜き操作を円滑に行うことができないという不具合がある。   However, even in such a case, if the O-ring 505 is damaged when the rotational speed sensor 504 is assembled or replaced, muddy water or the like from the damaged portion is formed between the outer peripheral surface of the outer ring 501 and the inner peripheral surface of the bearing insertion hole 502a. The rust may be generated between the outer peripheral surface of the outer ring 501 and the inner peripheral surface of the bearing insertion hole 502a due to the muddy water and the like. There is a problem that the pull-out operation from the insertion hole cannot be performed smoothly.

従って、本発明の目的は、固定用軌道輪と車体側部材との間での錆の発生を抑制して車体側部材からの固定用軌道輪の引き抜き操作を円滑に行うことができる車輪用軸受装置を提供することにある。   Accordingly, an object of the present invention is to provide a wheel bearing capable of smoothly pulling out a fixed bearing ring from a vehicle body side member while suppressing generation of rust between the fixed track ring and the vehicle body side member. To provide an apparatus.

本発明は、上記目的を達成するために、（１）〜（４）の車輪用軸受装置を提供する。   In order to achieve the above object, the present invention provides the wheel bearing device of (1) to (4).

（１）軸受挿入孔付きの車体側部材に対しその軸受挿入孔内に一部を挿入して嵌合させた状態で着脱可能に取り付けられた固定用軌道輪、及び前記固定用軌道輪の軸線上に配置された回転用軌道輪を有する転がり軸受と、前記転がり軸受の前記回転用軌道輪に取り付けられ、前記固定用軌道輪の車体側で前記車体側部材を挿通する回転速度検出用の固定部材と共に車輪側部材の回転速度を検出する回転速度検出器を構成する回転速度検出用の回転部材と、前記回転速度検出用の回転部材を覆い、前記軸受挿入孔の内周面に取り付けられたキャップ状のカバー部材と、前記カバー部材の外周面と前記軸受挿入孔の内周面との間に介在する空隙を封止する第１のシール材、及び前記軸受挿入孔の車輪側開口周縁と前記固定用軌道輪の車体側端面との間に介在する空隙を封止する第２のシール材を有するシール機構とを備えた車輪用軸受装置。 (1) A fixed bearing ring detachably attached to a vehicle body side member having a bearing insertion hole in a state in which a part thereof is inserted and fitted in the bearing insertion hole, and the shaft of the fixed bearing ring A rolling bearing having a rotating raceway arranged on a line, and a fixed for detecting rotational speed that is attached to the rotating raceway of the rolling bearing and is inserted through the vehicle body side member on the vehicle body side of the fixing raceway The rotational member for detecting the rotational speed constituting the rotational speed detector for detecting the rotational speed of the wheel side member together with the member, and the rotational member for detecting the rotational speed are covered and attached to the inner peripheral surface of the bearing insertion hole. A cap-shaped cover member; a first sealing material that seals a gap interposed between an outer peripheral surface of the cover member and an inner peripheral surface of the bearing insertion hole; and a wheel-side opening peripheral edge of the bearing insertion hole; A vehicle body side end surface of the fixed raceway; Wheel bearing device and a sealing mechanism having a second sealing member for sealing a gap existing between.

（２）上記（１）に記載の車輪用軸受装置において、前記カバー部材は、前記軸受挿入孔の内周面に圧入によって取り付けられている。 (2) In the wheel bearing device according to (1), the cover member is attached to the inner peripheral surface of the bearing insertion hole by press-fitting.

（３）上記（１）又は（２）に記載の車輪用軸受装置において、前記シール機構は、前記第１のシール材が前記カバー部材の外周面に巻回する弾性部材によって形成されている。 (3) In the wheel bearing device according to (1) or (2), the seal mechanism is formed by an elastic member in which the first seal member is wound around an outer peripheral surface of the cover member.

（４）上記（１）乃至（３）のいずれかに記載の車輪用軸受装置において、前記転がり軸受は、前記固定用軌道輪を外輪とし、前記回転用軌道輪を内輪とする。 (4) In the wheel bearing device according to any one of (1) to (3), the rolling bearing has the fixed raceway as an outer ring and the rotation raceway as an inner ring.

本発明によると、固定用軌道輪と車体側部材との間での錆の発生を抑制して固定用軌道輪の車体側部材からの引き抜き操作を円滑に行うことができる。   According to the present invention, it is possible to smoothly perform the pulling-out operation of the fixing track ring from the vehicle body side member while suppressing the generation of rust between the fixing track ring and the vehicle body side member.

本発明の実施の形態に係る車輪用軸受装置の全体を説明するために示す断面図。Sectional drawing shown in order to demonstrate the whole wheel bearing apparatus which concerns on embodiment of this invention. 図１における車輪用軸受装置の要部を拡大して示す断面図。Sectional drawing which expands and shows the principal part of the wheel bearing apparatus in FIG. 本発明の実施の形態に係る車輪用軸受装置を変形例１として示す断面図。Sectional drawing which shows the wheel bearing apparatus which concerns on embodiment of this invention as the modification 1. As shown in FIG. 本発明の実施の形態に係る車輪用軸受装置を変形例２として示す断面図。Sectional drawing which shows the wheel bearing apparatus which concerns on embodiment of this invention as the modification 2. FIG. 従来の車輪用軸受装置の不具合を説明するために示す断面図。Sectional drawing shown in order to demonstrate the malfunction of the conventional wheel bearing apparatus.

[実施の形態]
（車輪用軸受装置の全体構成）
図１は車輪用軸受装置の全体を示す。図２は車輪用軸受装置の要部を示す。図１及び図２に示すように、車輪用軸受装置１は、例えば従動輪用の転がり軸受装置からなる。車輪用軸受装置１は、転がり軸受１００，回転速度検出器２００（パルサーリング２０１），カバー部材３００及びシール機構４００を備え、車体（図示せず）と車輪（図示せず）との間に配置されている。 [Embodiment]
(Whole configuration of wheel bearing device)
FIG. 1 shows the entire wheel bearing device. FIG. 2 shows a main part of the wheel bearing device. As shown in FIG.1 and FIG.2, the wheel bearing apparatus 1 consists of a rolling bearing apparatus for driven wheels, for example. The wheel bearing device 1 includes a rolling bearing 100, a rotational speed detector 200 (pulsar ring 201), a cover member 300, and a seal mechanism 400, and is disposed between a vehicle body (not shown) and a wheel (not shown). Has been.

（転がり軸受１００の構成）
転がり軸受１００は、中心軸線Ｏの回りにハブ輪６と共に回転可能な回転用軌道輪としての内輪７と、内輪７の外周囲に配置された固定用軌道輪としての外方部材（外輪）３と、外輪３と内方部材２との間に介在する複列の転動体４，５とを有し、例えば玉軸受によって構成されている。そして、転がり軸受１００は、車体側（車両インナ側：図１の右側）にハブ輪６を回転可能に支持する。内輪７は、ハブ輪６と共に内方部材２を構成する。 (Configuration of rolling bearing 100)
The rolling bearing 100 includes an inner ring 7 as a rotating bearing ring that can rotate together with a hub ring 6 around a central axis O, and an outer member (outer ring) 3 as a fixed bearing ring disposed around the outer periphery of the inner ring 7. And the double row rolling elements 4 and 5 interposed between the outer ring 3 and the inner member 2 are constituted by, for example, ball bearings. The rolling bearing 100 rotatably supports the hub wheel 6 on the vehicle body side (vehicle inner side: right side in FIG. 1). The inner ring 7 constitutes the inner member 2 together with the hub ring 6.

ハブ輪６は、各外径が互いに異なる大小２つの胴部６ａ，６ｂ（大径の胴部６ａ，小径の胴部６ｂ）を有し、全体が例えば中炭素鋼からなる中実の成形体によって形成されている。   The hub wheel 6 has two large and small body parts 6a and 6b (large diameter body part 6a and small diameter body part 6b) having different outer diameters, and a solid molded body made entirely of medium carbon steel, for example. Is formed by.

大径の胴部６ａは、複列の転動体４，５のうち車輪側（図１では左側）列の転動体４を転動させる内側軌道面６０ａを外周面に有し、ハブ輪６の車輪側に配置されている。大径の胴部６ａには、その外周面から突出して車輪（図示せず）を取り付けるための円環状の車輪取付用フランジ６ｄが一体に設けられている。車輪取付用フランジ６ｄには、円周方向に並列してハブボルト８を挿通させる複数のボルト挿通孔６０ｄ（２個のみ図示）が設けられている。大径の胴部６ａには、車輪側端面から突出するインロー部６ｅが設けられている。   The large-diameter trunk portion 6a has an inner raceway surface 60a on the outer peripheral surface for rolling the rolling element 4 on the wheel side (left side in FIG. 1) of the double-row rolling elements 4 and 5 on the outer peripheral surface. It is arranged on the wheel side. The large-diameter trunk portion 6a is integrally provided with an annular wheel mounting flange 6d for projecting from the outer peripheral surface and for mounting a wheel (not shown). The wheel mounting flange 6d is provided with a plurality of bolt insertion holes 60d (only two are shown) through which the hub bolts 8 are inserted in parallel in the circumferential direction. The large-diameter body portion 6a is provided with an inlay portion 6e protruding from the wheel side end surface.

小径の胴部６ｂは、内輪７を取り付けるための凹状の取付面６０ｂを外周面に有し、内輪７を圧入してハブ輪６の車体側（図１では右側）に配置されている。   The small-diameter trunk portion 6b has a concave mounting surface 60b for mounting the inner ring 7 on the outer peripheral surface, and is press-fitted into the inner ring 7 and arranged on the vehicle body side (right side in FIG. 1).

一方、内輪７は、複列の転動体４，５のうち車体側列の転動体５を転動させる内側軌道面７ａを有し、小径の胴部６ｂを圧入させて取付面６０ｂに取り付けられ、全体が例えば冷間圧延鋼板からなる円筒状の成形体によって形成されている。   On the other hand, the inner ring 7 has an inner raceway surface 7a for rolling the rolling elements 5 in the vehicle body side row of the double row rolling elements 4, 5, and is attached to the mounting surface 60b by press-fitting a small-diameter body portion 6b. The whole is formed of a cylindrical shaped body made of, for example, a cold-rolled steel plate.

外輪３は、複列の転動体４，５のうち車輪側列の転動体４を転動させる第１の外側軌道面３ａ、及び車体側列の転動体５を転動させる第２の外側軌道面３ｂを有し、車体側部材としてのナックル９に一部を軸受挿入孔９ａに嵌合させた状態で着脱可能に取り付けられている。そして、外輪３は、中心軸線Ｏの両方向に開口する例えば中炭素鋼からなる円筒状の成形体によって形成されている。外輪３には、その外周面であって、軸受挿入孔９ａの内周面に対向する部位に開口する円環状の凹溝３ｃが設けられている。また、外輪３には、その外周面から突出する円環状の車体取付用フランジ３ｄが一体に設けられている。車体取付用フランジ３ｄには、円周方向に並列してナックルボルト（図示せず）を挿通させる複数のボルト挿通孔（図示せず）が設けられている。   The outer ring 3 includes a first outer raceway surface 3a for rolling the rolling element 4 in the wheel side row among the rolling elements 4 and 5 in the double row, and a second outer raceway for rolling the rolling element 5 in the vehicle body side row. It has a surface 3b and is detachably attached to a knuckle 9 as a vehicle body side member in a state where a part thereof is fitted in the bearing insertion hole 9a. The outer ring 3 is formed by a cylindrical molded body made of, for example, medium carbon steel that opens in both directions of the central axis O. The outer ring 3 is provided with an annular concave groove 3c that is open on a portion of the outer ring 3 facing the inner peripheral surface of the bearing insertion hole 9a. Further, the outer ring 3 is integrally provided with an annular vehicle body mounting flange 3d protruding from the outer peripheral surface thereof. The vehicle body mounting flange 3d is provided with a plurality of bolt insertion holes (not shown) through which knuckle bolts (not shown) are inserted in parallel in the circumferential direction.

一方側（車輪側）列の転動体４は、鋼球からなり、ハブ輪６の内側軌道面６０ａと外輪３の第１の外側軌道面３ａとの間に介在して配置され、かつ玉保持器（図示せず）によって転動可能に保持されている。車輪側列の転動体４の車輪側には、ハブ輪６の外周面と外輪３の内周面との間に介在するシール部材１０が配置されている。   The rolling elements 4 in the one side (wheel side) row are made of steel balls, are disposed between the inner raceway surface 60a of the hub wheel 6 and the first outer raceway surface 3a of the outer ring 3, and hold the balls. It is hold | maintained so that it can roll by a container (not shown). A seal member 10 interposed between the outer peripheral surface of the hub wheel 6 and the inner peripheral surface of the outer ring 3 is disposed on the wheel side of the rolling elements 4 in the wheel side row.

他方側（車体側）列の転動体５は、鋼球からなり、内輪７の内側軌道面７ａと外輪３の第２の外側軌道面３ｂとの間に介在して配置され、かつ玉保持器（図示せず）によって転動可能に保持されている。   The rolling elements 5 on the other side (vehicle body side) are made of steel balls, are disposed between the inner raceway surface 7a of the inner ring 7 and the second outer raceway surface 3b of the outer ring 3, and are ball cages. (Not shown) so that it can roll.

ナックル９は、車体における懸架装置（図示せず）の構成部品として機能し、車体と転がり軸受１００（外輪３）との間に介在して配置されている。ナックル９には、転がり軸受１００（外輪３）の一部を挿入する軸受挿入孔９ａ、及び軸受挿入孔９ａの軸線と直交する方向に開口して回転速度センサ２０２（後述）を挿通させるセンサ挿通孔９ｂが設けられている。ナックル９の車輪側には、車体取付用フランジ３ｄに対向し、かつ自動車などの走行時に泥跳ねなどから車体を保護するスプラッシュガード１０１が配置されている。スプラッシュガード１０１は、外輪３を挿通させるレース挿通孔１０１ａを有し、ナックルボルトによって軸受挿入孔９ａの車輪側開口周縁９０ａに車体取付用フランジ３ｄと共に取り付けられている。   The knuckle 9 functions as a component of a suspension device (not shown) in the vehicle body, and is disposed between the vehicle body and the rolling bearing 100 (outer ring 3). The knuckle 9 has a bearing insertion hole 9a into which a part of the rolling bearing 100 (outer ring 3) is inserted, and a sensor insertion that opens in a direction orthogonal to the axis of the bearing insertion hole 9a and through which a rotation speed sensor 202 (described later) is inserted. A hole 9b is provided. A splash guard 101 is disposed on the wheel side of the knuckle 9 so as to face the vehicle body mounting flange 3d and protect the vehicle body from mud splashes when the vehicle is running. The splash guard 101 has a race insertion hole 101a through which the outer ring 3 is inserted, and is attached to a wheel side opening peripheral edge 90a of the bearing insertion hole 9a together with a vehicle body mounting flange 3d by a knuckle bolt.

（回転速度検出器２００の構成）
回転速度検出器２００は、パルサーリング（回転速度検出用の回転部材）２０１及び回転速度センサ（回転速度検出用の固定部材）２０２からなり、車体側列の転動体５の車体側に配置されている。そして、回転速度検出器２００は、内輪７の回転速度（車輪側部材としての車軸の回転速度）を検出する。 (Configuration of rotation speed detector 200)
The rotational speed detector 200 includes a pulsar ring (rotating member for detecting rotational speed) 201 and a rotational speed sensor (fixing member for detecting rotational speed) 202, and is disposed on the vehicle body side of the rolling elements 5 in the vehicle body side row. Yes. The rotation speed detector 200 detects the rotation speed of the inner ring 7 (the rotation speed of the axle as the wheel side member).

パルサーリング２０１は、スリンガ２０３及びリング部材２０４を有し、内輪７の外周面にその車体側端部を圧入して取り付けられている。   The pulsar ring 201 has a slinger 203 and a ring member 204, and is attached to the outer peripheral surface of the inner ring 7 by press-fitting its vehicle body side end.

スリンガ２０３は、中心軸線Ｏを軸線とし、基部２０３ａ及びリング取付部２０３ｂからなる鋼（例えばＳＰＣＣ，ＳＵＳ）製の円筒部材によって形成されている。スリンガ２０３の形成は、絞り等のプレス成形法を用いて行われる。   The slinger 203 is formed of a cylindrical member made of steel (for example, SPCC, SUS) having a central axis O as an axis and including a base portion 203a and a ring mounting portion 203b. The slinger 203 is formed using a press molding method such as drawing.

基部２０３ａは、スリンガ２０３の車輪側に配置され、内輪７に対する被圧入部となる円筒部材によって形成されている。   The base 203 a is disposed on the wheel side of the slinger 203 and is formed by a cylindrical member that serves as a press-fit portion for the inner ring 7.

リング取付部２０３ｂは、スリンガ２０３の車体側に配置され、全体が基部２０３ａの開口端部を外周側に折り曲げてなる円環部材によって形成されている。   The ring attachment portion 203b is disposed on the vehicle body side of the slinger 203, and is entirely formed by an annular member formed by bending the open end portion of the base portion 203a to the outer peripheral side.

リング部材２０４は、被検出部２０４ａとなる環状磁石を形成して車体側端面２０４ｂをスリンガ２０３の基部２０３ａの軸線（中心軸線Ｏ）に直交させる位置で例えば加硫接着法によってスリンガ２０３のリング取付部２０３ｂに取り付けられている。環状磁石は、例えばリング部材２０４の素材としてのゴム製の円環部材にフェライト系のステンレス鋼粉を混入し、円周方向にＮ極とＳ極とを等配に磁化して形成されている。リング部材２０４の取り付けは、加硫接着法に代えてインサート成形法を用いても行うことができる。   The ring member 204 forms an annular magnet to be the detected portion 204a and is attached to the ring of the slinger 203 by, for example, vulcanization bonding at a position where the vehicle body side end surface 204b is orthogonal to the axis (center axis O) of the base 203a of the slinger 203. It is attached to the part 203b. The annular magnet is formed, for example, by mixing a ferritic stainless steel powder in a rubber annular member as a material of the ring member 204 and magnetizing N poles and S poles in the circumferential direction at equal intervals. . The ring member 204 can be attached by using an insert molding method instead of the vulcanization bonding method.

回転速度センサ２０２は、リング部材２０４の被検出部２０４ａに所定のエアギャップＧを介して対向する検出部２０２ａを有し、ナックル９にセンサ挿通孔９ｂを挿通して取り付けられている。そして、回転速度センサ２０２は、パルサーリング２０１の磁束変化を検出する。回転速度センサ２０２としては、例えばホール素子や磁気抵抗素子などの磁気検出素子が用いられる。   The rotational speed sensor 202 has a detection portion 202a that faces the detected portion 204a of the ring member 204 via a predetermined air gap G, and is attached to the knuckle 9 through the sensor insertion hole 9b. The rotational speed sensor 202 detects a change in magnetic flux of the pulsar ring 201. As the rotation speed sensor 202, for example, a magnetic detection element such as a Hall element or a magnetoresistive element is used.

（カバー部材３００の構成）
カバー部材３００は、円板部３００ａ及び円筒部３００ｂを有し、外輪３の外周囲で凹溝３ｃの車体側に配置され、かつ回転速度センサ２０２の車輪側でナックル９における軸受挿入孔９ａの内周面に圧入によって取り付けられ、全体が車輪側に開口する例えばステンレス鋼の非磁性材料からなるキャップ部材によって形成されている。そして、カバー部材３００は、リング部材２０４の被検出部２０４ａを覆う。円板部３００ａはカバー部として、また円筒部３００ｂは圧入部としてそれぞれ機能する。 (Configuration of cover member 300)
The cover member 300 has a disc part 300a and a cylindrical part 300b, is arranged on the vehicle body side of the concave groove 3c around the outer periphery of the outer ring 3, and the bearing insertion hole 9a in the knuckle 9 on the wheel side of the rotational speed sensor 202. The cap member is made of, for example, a stainless steel nonmagnetic material that is attached to the inner peripheral surface by press-fitting and opens to the wheel side. The cover member 300 covers the detected part 204a of the ring member 204. The disc part 300a functions as a cover part, and the cylindrical part 300b functions as a press-fit part.

（シール機構４００の構成）
シール機構４００は、第１のシール材４０１及び第２のシール材４０２を有し、車体側に配置されている。 (Configuration of seal mechanism 400)
The seal mechanism 400 includes a first seal material 401 and a second seal material 402, and is disposed on the vehicle body side.

第１のシール材４０１は、例えばゴム等の弾性部材からなり、カバー部材３００における円筒部３００ｂの外周面に巻回されている。第１のシール材４０１の巻径（外径）Ｄは、軸受挿入孔９ａの内径ｄ（ｄ＜Ｄ：共に図示せず）よりも大きい所定の寸法（締め代）に設定されている。そして、第１のシール材４０１は、カバー部材３００の外周面とナックル９における軸受挿入孔９ａの内周面との間に介在する空隙ｇ１を封止する。 The first sealing material 401 is made of an elastic member such as rubber, and is wound around the outer peripheral surface of the cylindrical portion 300 b of the cover member 300. The winding diameter (outer diameter) D of the first sealing material 401 is set to a predetermined dimension (tightening allowance) larger than the inner diameter d (d <D: not shown) of the bearing insertion hole 9a. The first sealing member 401 seals the gap g 1 interposed between the outer peripheral surface of the cover member 300 and the inner peripheral surface of the bearing insertion hole 9 a in the knuckle 9.

第２のシール材４０２は、例えばＯリングからなり、外輪３の外周面とナックル９における軸受挿入孔９ａの内周面との間に介在して配置され、かつ外輪３の凹溝３ｃ内に取り付けられている。そして、第２のシール材４０２は、軸受挿入孔９ａの車輪側開口周縁９０ａと車体取付用フランジ３ｄの車体側端面３０ｄとの間に介在する空隙ｇ２を封止する。 The second sealing material 402 is made of, for example, an O-ring, and is disposed between the outer peripheral surface of the outer ring 3 and the inner peripheral surface of the bearing insertion hole 9 a in the knuckle 9, and in the groove 3 c of the outer ring 3. It is attached. The second sealing member 402 seals the gap g 2 interposed between a vehicle body-side end surface 30d of the wheel-side opening peripheral edge 90a and the vehicle body mounting flange 3d of the bearing insertion holes 9a.

（車輪用軸受装置１の動作）
本実施の形態に示す車輪用軸受装置１の動作は、次に示すようにして行われる。すなわち、車輪の回転に伴ってその回転がハブ輪６に伝達されると、ハブ輪６が内輪７と共に回転する。 (Operation of the wheel bearing device 1)
Operation | movement of the wheel bearing apparatus 1 shown to this Embodiment is performed as follows. That is, when the rotation is transmitted to the hub wheel 6 as the wheel rotates, the hub wheel 6 rotates together with the inner ring 7.

この際、カバー部材３００における円筒部３００ｂの外周面とナックル９における軸受挿入孔９ａの内周面との間に介在する空隙ｇ１、及び軸受挿入孔９ａの車輪側開口周縁９０ａと車体取付用フランジ３ｄの車体側端面３０ｄとの間に介在する空隙ｇ２に車輪側からの泥水等が浸入しようとしても、空隙ｇ１が第１のシール材４０１で、また空隙ｇ２が第２のシール材４０２でそれぞれ封止されているため、軸受挿入孔９ａの内周面と外輪３の外周面との間（外輪３とナックル９との間の嵌合部）への泥水等の浸入を阻止することができる。 At this time, the gap g 1 interposed between the outer peripheral surface of the cylindrical portion 300b in the cover member 300 and the inner peripheral surface of the bearing insertion hole 9a in the knuckle 9, and the wheel side opening peripheral edge 90a of the bearing insertion hole 9a and the vehicle body mounting if you try to intrusion is muddy water or the like from the wheel side to the gap g 2 interposed between a vehicle body-side end surface 30d of the flange 3d, the gap g 1 is a first sealing member 401, also a gap g 2 of the second seal Since they are respectively sealed with the material 402, entry of muddy water or the like into the space between the inner peripheral surface of the bearing insertion hole 9a and the outer peripheral surface of the outer ring 3 (a fitting portion between the outer ring 3 and the knuckle 9) is prevented. can do.

[実施の形態の効果]
以上説明した実施の形態によれば、次に示す効果が得られる。 [Effect of the embodiment]
According to the embodiment described above, the following effects can be obtained.

軸受挿入孔９ａの内周面と外輪３の外周面との間への泥等の浸入をシール機構４００で阻止することができるため、外輪３とナックル９との間の嵌合部での錆の発生を抑制することができる。これにより、ナックル９に対する外輪３の固着力が高くなることは従来のようにはなく、車輪用軸受装置１の取り外し時における引き抜き操作を円滑に行うことができる。   Since the sealing mechanism 400 can prevent mud or the like from entering between the inner peripheral surface of the bearing insertion hole 9a and the outer peripheral surface of the outer ring 3, rust at the fitting portion between the outer ring 3 and the knuckle 9 can be prevented. Can be suppressed. As a result, the fixing force of the outer ring 3 to the knuckle 9 is not increased as in the prior art, and the pulling-out operation when removing the wheel bearing device 1 can be performed smoothly.

以上、本発明の車輪用軸受装置を上記実施の形態に基づいて説明したが、本発明は上記実施の形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の態様において実施することが可能であり、例えば次に示すような変形も可能である。   As mentioned above, although the wheel bearing apparatus of this invention was demonstrated based on the said embodiment, this invention is not limited to the said embodiment, It implements in a various aspect in the range which does not deviate from the summary. For example, the following modifications are possible.

（１）上記実施の形態では、第２のシール材４０２が外輪３の外周面と軸受挿入孔９ａの内周面との間に介在して配置されている場合について説明したが、本発明はこれに限定されず、図３に上記実施の形態の変形例１として示すように、スプラッシュガード１０１の車体側端面１０１ｂと軸受挿入孔９ａの車輪側開口周縁９０ａとの間にＯリング（第２のシール材）６００を、またスプラッシュガード１０１の車輪側端面１０１ｃと車体取付用フランジ３ｄの車体側端面３０ｄとの間にＯリング（第２のシール材）６０１をそれぞれ介在させて配置してもよい。すなわち要するに、本発明の第２のシール材としては、軸受挿入孔の車輪側開口周縁と固定用軌道輪の車体側端面との間に介在する空隙を封止するものであればよい。 (1) In the above embodiment, the case where the second sealing material 402 is disposed between the outer peripheral surface of the outer ring 3 and the inner peripheral surface of the bearing insertion hole 9a has been described. The present invention is not limited to this, and as shown in FIG. 3 as Modification 1 of the above-described embodiment, an O-ring (second ring) is formed between the vehicle body side end surface 101b of the splash guard 101 and the wheel side opening peripheral edge 90a of the bearing insertion hole 9a. Further, the O-ring (second seal material) 601 is interposed between the wheel side end surface 101c of the splash guard 101 and the vehicle body side end surface 30d of the vehicle body mounting flange 3d. Good. That is, in short, the second sealing material of the present invention only needs to seal a gap interposed between the wheel-side opening peripheral edge of the bearing insertion hole and the vehicle body-side end surface of the fixed bearing ring.

また、図４に上記実施の形態の変形例２として示すように、シール機構４００に代えて第１のシール材７０１及び第２のシール材７０２を有するシール機構７００としてもよい。   Further, as shown as a second modification of the above embodiment in FIG. 4, a sealing mechanism 700 having a first sealing material 701 and a second sealing material 702 may be used instead of the sealing mechanism 400.

図４において、カバー部材３００は、円筒部３００ｂの一部を軸受挿入孔９ａ内に嵌合（金属嵌合）させて外輪３の車体側に配置されている。カバー部材３００には、円板部３００ａと円筒部３００ｂとの間に介在するテーパからなる折曲部３００ｃが設けられている。折曲部３００ｃは、内外径が車輪側から車体側に向かって漸次小さくなる寸法に設定されている。ナックル９には、軸受挿入孔９ａの内周面に開口する円環状の凹溝９１ａが設けられている。凹溝９１ａには、その溝底とカバー部材３００の折曲部３００ｃとの間に介在するゴム等の第１のシール材７０１が取り付けられている。第１のシール材７０１は、カバー部材３００の折曲部３００ｃと軸受挿入孔９ａの内周面との間に介在して取り付けられる構造（アウタ側取付構造）に代え、カバー部材の折曲部と外輪の外周面との間に介在して取り付けられる構造（インナ側取付構造）としてもよい。   In FIG. 4, the cover member 300 is disposed on the vehicle body side of the outer ring 3 by fitting a part of the cylindrical portion 300 b into the bearing insertion hole 9 a (metal fitting). The cover member 300 is provided with a bent portion 300c having a taper interposed between the disc portion 300a and the cylindrical portion 300b. The bent portion 300c is set to have a dimension that the inner and outer diameters gradually decrease from the wheel side toward the vehicle body side. The knuckle 9 is provided with an annular concave groove 91a that opens on the inner peripheral surface of the bearing insertion hole 9a. A first sealing member 701 such as rubber is attached to the concave groove 91 a between the groove bottom and the bent portion 300 c of the cover member 300. The first sealing member 701 is replaced with a structure (outer side mounting structure) that is interposed between the bent portion 300c of the cover member 300 and the inner peripheral surface of the bearing insertion hole 9a (outer side mounting structure). It is good also as a structure (inner side attachment structure) which is interposed and attached between the outer peripheral surface of the outer ring.

軸受挿入孔９ａの車輪側開口部は、車体側から車輪側に向かって内径を漸次大きくする凹孔９２ａによって形成されている。外輪３には、その外周面に開口する円環状の凹溝３ｅが設けられている。凹溝３ｅには、その溝底と凹孔９２ａの内周面（面取り部）との間に介在するＯリング等の第２のシール材７０２が取り付けられている。   The wheel side opening of the bearing insertion hole 9a is formed by a concave hole 92a that gradually increases the inner diameter from the vehicle body side toward the wheel side. The outer ring 3 is provided with an annular concave groove 3e that opens on the outer peripheral surface thereof. A second sealing material 702 such as an O-ring interposed between the groove bottom and the inner peripheral surface (chamfered portion) of the concave hole 92a is attached to the concave groove 3e.

（２）上記実施の形態では、第１のシール材４０１として例えばゴム等の弾性部材である場合について説明したが、本発明はこれに限定されず、例えばグリスや樹脂等の塗布材を第１のシール材として用いてもよい。 (2) In the above embodiment, the case where the first sealing material 401 is an elastic member such as rubber has been described. However, the present invention is not limited to this, and for example, a coating material such as grease or resin is used as the first sealing material 401. It may be used as a sealing material.

（３）上記実施の形態では、固定用軌道輪を外輪３とし、回転用軌道輪を内輪７とする場合について説明したが、本発明はこれに限定されず、固定用軌道輪が内輪であり、回転用軌道輪が外輪であってもよい。 (3) In the above embodiment, the case where the stationary race ring is the outer ring 3 and the rotation race ring is the inner ring 7 is described. However, the present invention is not limited to this, and the stationary race ring is the inner ring. The raceway for rotation may be an outer ring.

（４）上記実施の形態では、転がり軸受１００が玉軸受である場合について説明したが、本発明はこれに限定されず、円すいころ軸受など他の転がり軸受であってもよい。 (4) Although the case where the rolling bearing 100 is a ball bearing has been described in the above embodiment, the present invention is not limited to this, and may be another rolling bearing such as a tapered roller bearing.

（５）上記実施の形態では、従動輪用の転がり軸受装置に適用する場合について説明したが、本発明はこれに限定されず、駆動輪用の転がり軸受装置にも上記実施の形態と同様に適用可能である。 (5) In the above embodiment, the case where the invention is applied to a rolling bearing device for a driven wheel has been described. However, the present invention is not limited to this, and the rolling bearing device for a driving wheel is also similar to the above embodiment. Applicable.

１…車輪用軸受装置、２…内方部材、３…外方部材（外輪）、３ａ…第１の外側軌道面、３ｂ…第２の外側軌道面、３ｃ…凹溝、３ｄ…車体取付用フランジ、３０ｄ…車体側端面、３ｅ…凹溝、４，５…転動体、６…ハブ輪、６ａ…大径の胴部、６０ａ…内側軌道面、６ｂ…小径の胴部、６０ｂ…取付面、６ｄ…車輪取付用フランジ、６０ｄ…ボルト挿通孔、６ｅ…インロー部、７…内輪、７ａ…内側軌道面、８…ハブボルト、９…ナックル、９ａ…軸受挿入孔、９０ａ…車輪側開口周縁、９１…凹溝、９２ａ…凹孔、９ｂ…センサ挿通孔、１０…シール部材、１００…転がり軸受、１０１…スプラッシュガード、１０１ａ…レース挿通孔、１０１ｂ…車体側端面、１０１ｃ…車輪側端面、２００…回転速度検出器、２０１…パルサーリング、２０２…回転速度センサ、２０２ａ…検出部、２０３…スリンガ、２０３ａ…基部、２０３ｂ…リング取付部、２０４…リング部材、２０４ａ…被検出部、２０４ｂ…車体側端面、３００…カバー部材、３００ａ…円板部、３００ｂ…円筒部、３００ｃ…折曲部、４００…シール機構、４０１…第１のシール材、４０２…第２のシール材、５００…玉軸受、５０１…外輪、５０２…ナックル、５０２ａ…軸受挿入孔、５０２ｂ…センサ挿通孔、５０３…Ｏリング、５０４…回転速度センサ、５０５…Ｏリング、６００，６０１…Ｏリング、７００…シール機構、７０１…第１のシール材、７０２…第２のシール材、Ｄ…外径、ｄ…内径、Ｇ…エアギャップ、ｇ１，ｇ２…空隙、Ｏ…中心軸線 DESCRIPTION OF SYMBOLS 1 ... Wheel bearing apparatus, 2 ... Inner member, 3 ... Outer member (outer ring), 3a ... 1st outer raceway surface, 3b ... Second outer raceway surface, 3c ... Concave groove, 3d ... For vehicle body attachment Flange, 30d ... end face of vehicle body, 3e ... groove, 4, 5 ... rolling element, 6 ... hub wheel, 6a ... large diameter body, 60a ... inner raceway surface, 6b ... small diameter body, 60b ... mounting surface 6d: Wheel mounting flange, 60d: Bolt insertion hole, 6e: Inner part, 7 ... Inner ring, 7a ... Inner raceway surface, 8 ... Hub bolt, 9 ... Knuckle, 9a ... Bearing insertion hole, 90a ... Wheel side opening peripheral edge, DESCRIPTION OF SYMBOLS 91 ... Concave groove, 92a ... Concave hole, 9b ... Sensor insertion hole, 10 ... Seal member, 100 ... Rolling bearing, 101 ... Splash guard, 101a ... Race insertion hole, 101b ... End face on the vehicle body side, 101c ... End face on the wheel side, 200 ... Rotational speed detector, 201 ... Pulsar ring 202 ... Rotational speed sensor, 202a ... Detection part, 203 ... Slinger, 203a ... Base part, 203b ... Ring mounting part, 204 ... Ring member, 204a ... Detected part, 204b ... End face of the vehicle body, 300 ... Cover member, 300a ... Circle Plate part, 300b ... Cylindrical part, 300c ... Bending part, 400 ... Sealing mechanism, 401 ... First sealing material, 402 ... Second sealing material, 500 ... Ball bearing, 501 ... Outer ring, 502 ... Knuckle, 502a ... Bearing insertion hole, 502b ... sensor insertion hole, 503 ... O-ring, 504 ... rotational speed sensor, 505 ... O-ring, 600,601 ... O-ring, 700 ... sealing mechanism, 701 ... first sealing material, 702 ... second sealant, D ... outer diameter, d ... inner diameter, G ... air gap, g 1, g 2 ... void, O ... center axis

Claims (4)

軸受挿入孔付きの車体側部材に対しその軸受挿入孔内に一部を挿入して嵌合させた状態で着脱可能に取り付けられた固定用軌道輪、及び前記固定用軌道輪の軸線上に配置された回転用軌道輪を有する転がり軸受と、
前記転がり軸受の前記回転用軌道輪に取り付けられ、前記固定用軌道輪の車体側で前記車体側部材を挿通する回転速度検出用の固定部材と共に車輪側部材の回転速度を検出する回転速度検出器を構成する回転速度検出用の回転部材と、
前記回転速度検出用の回転部材を覆い、前記軸受挿入孔の内周面に取り付けられたキャップ状のカバー部材と、
前記カバー部材の外周面と前記軸受挿入孔の内周面との間に介在する空隙を封止する第１のシール材、及び前記軸受挿入孔の車輪側開口周縁と前記固定用軌道輪の車体側端面との間に介在する空隙を封止する第２のシール材を有するシール機構と
を備えた車輪用軸受装置。 A fixed bearing ring detachably attached to a vehicle body side member with a bearing insertion hole in a state in which a part is inserted and fitted in the bearing insertion hole, and is disposed on the axis of the fixed bearing ring A rolling bearing having a raceway for rotation,
A rotational speed detector that is attached to the rolling bearing ring of the rolling bearing and detects the rotational speed of the wheel side member together with a rotational speed detection fixing member that is inserted through the vehicle body side member on the vehicle body side of the stationary bearing ring. A rotating member for detecting the rotational speed constituting
A cap-shaped cover member that covers the rotational member for detecting the rotational speed and is attached to the inner peripheral surface of the bearing insertion hole;
A first seal member that seals a gap interposed between an outer peripheral surface of the cover member and an inner peripheral surface of the bearing insertion hole; a wheel-side opening peripheral edge of the bearing insertion hole; and a vehicle body of the fixed bearing ring A wheel bearing device comprising: a sealing mechanism having a second sealing material that seals a gap interposed between the side end surfaces. 前記カバー部材は、前記軸受挿入孔の内周面に圧入によって取り付けられている請求項１に記載の車輪用軸受装置。   The wheel bearing device according to claim 1, wherein the cover member is attached to an inner peripheral surface of the bearing insertion hole by press fitting. 前記シール機構は、前記第１のシール材が前記カバー部材の外周面に巻回する弾性部材によって形成されている請求項１又は２に記載の車輪用軸受装置。   The wheel bearing device according to claim 1 or 2, wherein the seal mechanism is formed by an elastic member in which the first seal member is wound around an outer peripheral surface of the cover member. 前記転がり軸受は、前記固定用軌道輪を外輪とし、前記回転用軌道輪を内輪とする請求項１乃至３のいずれか１項に記載の車輪用軸受装置。   4. The wheel bearing device according to claim 1, wherein the rolling bearing has the fixed raceway as an outer ring and the rotation raceway as an inner ring. 5.
JP2012179872A 2012-08-14 2012-08-14 Wheel bearing device Pending JP2014037196A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016056646A1 (en) * 2014-10-10 2016-04-14 Ntn株式会社 Wheel bearing device
CN105605103A (en) * 2014-10-23 2016-05-25 斯凯孚公司 Hub-bearing unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016056646A1 (en) * 2014-10-10 2016-04-14 Ntn株式会社 Wheel bearing device
JP2016078494A (en) * 2014-10-10 2016-05-16 Ntn株式会社 Wheel bearing device
US10029513B2 (en) 2014-10-10 2018-07-24 Ntn Corporation Wheel bearing apparatus
CN105605103A (en) * 2014-10-23 2016-05-25 斯凯孚公司 Hub-bearing unit

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