JP2007326473A - Bearing device for wheel - Google Patents

Bearing device for wheel Download PDF

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Publication number
JP2007326473A
JP2007326473A JP2006159363A JP2006159363A JP2007326473A JP 2007326473 A JP2007326473 A JP 2007326473A JP 2006159363 A JP2006159363 A JP 2006159363A JP 2006159363 A JP2006159363 A JP 2006159363A JP 2007326473 A JP2007326473 A JP 2007326473A
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Prior art keywords
wheel
outer ring
bolt hole
housing
press
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JP2006159363A
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Japanese (ja)
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Kikuo Fukada
貴久夫 深田
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NTN Corp
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NTN Corp
NTN Toyo Bearing Co Ltd
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Priority to JP2006159363A priority Critical patent/JP2007326473A/en
Publication of JP2007326473A publication Critical patent/JP2007326473A/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a single-row roller bearing type or first generation type bearing device for a wheel provide with a wheel mounting housing with a small maximum diameter, a sufficient mounting property of the wheel and sufficient strength suitable for being used, for example, as an acceleration unit for a driven wheel of a large size vehicle such as a truck and a bus. <P>SOLUTION: The bearing device for the wheel is provided with a rolling bearing 1; and the annular wheel mounting housing 6 having a bolt hole 13 for mounting the wheel on an end surface of one end in which an outer ring 3 of the rolling bearing 1 is press-fitted to an outer periphery and an end at the bolt hole 13 side is projected in an axial direction than the outer ring 3. The bolt hole 13 has such a depth that an inner end does not reach to an end surface of the outer ring 3. Further, the rolling bearing 1 is made to a double-row taper-roller bearing. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、例えばトラック、バス等の大型車両の従動輪用アクスルユニットとして使用される車輪用軸受装置に関する。   The present invention relates to a wheel bearing device used as an axle unit for a driven wheel of a large vehicle such as a truck or a bus.

トラック、バス等の大型車両の従動輪用アクスルユニットには、ころ軸受を単列で用いたもの（単列ころ軸受タイプ）、複列のころ軸受をユニット化したもの（第１世代タイプ）、複列のころ軸受をユニット化し、かつ外輪とハブ輪を一体化したもの（第２世代タイプ）等の軸受装置が使用されている。このうち単列ころ軸受タイプや第１世代タイプの軸受装置を使用する場合、軸受部の外輪の外周に、車輪を取付けるためのハブ輪またはその代わりとなる部材を嵌合して設ける必要がある。   Axle units for driven wheels of large vehicles such as trucks and buses use roller bearings in a single row (single row roller bearing type), units with double row roller bearings (first generation type), Bearing devices such as those in which double row roller bearings are unitized and an outer ring and a hub ring are integrated (second generation type) are used. Among these, when using a single-row roller bearing type or a first generation type bearing device, it is necessary to provide a hub ring for mounting a wheel or an alternative member on the outer periphery of the outer ring of the bearing portion. .

大型車両のアクスルユニットでは、外周に車軸取付用フランジを有するハブ輪は最大直径が大きなものとなる。このため、鍛造加工等による成形が困難である。そこで、フランジを有しないハウジングを軸受部の外輪の外周に嵌合し、このハウジングに車輪を取付けることを試みた。その場合、ハウジングは、車輪の取付性が良く、車両走行時の荷重負荷に耐えられるだけの十分な強度を有するものとしなければならない。
この発明の目的は、例えばトラック、バス等の大型車両の従動輪用アクスルユニットとして使用するのに適し、最大直径が小さく、車輪の取付性が良く、かつ十分な強度を有する車輪取付用ハウジングを備えた単列ころ軸受タイプまたは第１世代タイプの車輪用軸受装置を提供することである。 In an axle unit for a large vehicle, a hub wheel having an axle mounting flange on the outer periphery has a large maximum diameter. For this reason, it is difficult to form by forging. Therefore, an attempt has been made to fit a housing having no flange to the outer periphery of the outer ring of the bearing portion and attach the wheel to the housing. In that case, the housing must have sufficient strength to allow the wheel to be easily mounted and to withstand the load applied when the vehicle is running.
An object of the present invention is to provide a wheel mounting housing that is suitable for use as a driven wheel axle unit for large vehicles such as trucks and buses, has a small maximum diameter, good wheel mounting properties, and sufficient strength. To provide a single-row roller bearing type or first generation type wheel bearing device provided.

この発明にかかる車輪用軸受装置は、転がり軸受と、一端の端面に車輪取付用のボルト孔を有し前記転がり軸受の外輪が内周に圧入されて前記ボルト孔側の端部が外輪よりも軸方向に突出する環状の車輪取付用ハウジングとを備えたものであって、前記ボルト孔を、内端が前記外輪の端面に達しない深さとしたことを特徴とする。   The wheel bearing device according to the present invention has a rolling bearing and a wheel mounting bolt hole on one end face, and the outer ring of the rolling bearing is press-fitted into the inner periphery, and the end on the bolt hole side is more than the outer ring. An annular wheel mounting housing protruding in the axial direction is provided, wherein the bolt hole has a depth that does not reach the end face of the outer ring.

この構成の車輪用軸受装置によれば、環状のハウジングの一端の端面に車輪取付用ボルト孔を設けたため、ボルトだけでハウジングに車輪を取付けることができ、車輪の取付性が良好である。ハウジングは、直径の大きいフランジを有しないため、最大直径を小さくすることができ、鍛造加工等による成形が容易である。また、ハウジングの形状を、転がり軸受の外輪が内周に圧入される箇所よりも軸方向に突出させた箇所に車輪取付用ボルト孔を設け、そのボルト孔は、内端が外輪の端面に達しないものとしたため、ハウジングの肉厚が部分的に薄くなることが回避され、ハウジングの十分な強度を確保することができる。   According to the wheel bearing device of this configuration, since the wheel mounting bolt hole is provided on the end face of one end of the annular housing, the wheel can be mounted on the housing with only the bolt, and the mounting property of the wheel is good. Since the housing does not have a flange with a large diameter, the maximum diameter can be reduced, and molding by forging or the like is easy. Also, a wheel mounting bolt hole is provided at a location where the housing shape is protruded in the axial direction from the location where the outer ring of the rolling bearing is press-fitted into the inner periphery, and the inner end of the bolt hole reaches the end surface of the outer ring. Therefore, it is avoided that the thickness of the housing is partially reduced, and sufficient strength of the housing can be ensured.

前記転がり軸受は複列の円すいころ軸受であるのが好ましい。円すいころ軸受は同サイズの玉軸受と比べて大きなラジアル荷重を受けることができるため、この車輪用軸受装置を大型車両のアクスルユニットに用いる場合に適したものとなる。   The rolling bearing is preferably a double row tapered roller bearing. Tapered roller bearings can receive a larger radial load than ball bearings of the same size, and thus are suitable for use in the wheel bearing device for an axle unit of a large vehicle.

また、この発明の車輪用軸受装置において、前記車輪取付用ハウジングの内径面が、前記外輪が圧入される圧入面部と、この圧入面部に段差面を介して前記一端側へ続き前記圧入面部よりも小径な内側突出部とを有する段付き円筒面状に形成され、前記外輪はその端面が、前記車輪取付用ハウジングの前記段差面に当接したものとするのが良い。
ハウジングの内径面を圧入面部と内側突出部とを有する段付き円筒面状に形成すると、車輪取付用ボルト孔を肉厚の大きな内側突出部の外周部に配置することができ、車輪取付用ボルト孔の周囲の肉厚が小さくなることを防げる。また、外輪の端面をハウジングの段差面に当接させることにより、転がり軸受のボルト孔側への軸方向移動を規制することができる。 Further, in the wheel bearing device of the present invention, the inner surface of the wheel mounting housing has a press-fitting surface portion into which the outer ring is press-fitted, and continues to the one end side through the step surface to the press-fitting surface portion than the press-fitting surface portion. Preferably, the outer ring is formed in a stepped cylindrical surface shape having a small-diameter inner protrusion, and the end surface of the outer ring is in contact with the step surface of the wheel mounting housing.
When the inner diameter surface of the housing is formed in a stepped cylindrical surface shape having a press-fitting surface portion and an inner protruding portion, the wheel mounting bolt holes can be arranged on the outer peripheral portion of the thick inner protruding portion, and the wheel mounting bolt The thickness around the hole can be prevented from being reduced. Further, the axial movement of the rolling bearing toward the bolt hole side can be restricted by bringing the end surface of the outer ring into contact with the stepped surface of the housing.

この発明の車輪用軸受装置は、転がり軸受と、一端の端面に車輪取付用のボルト孔を有し前記転がり軸受の外輪が内周に圧入されて前記ボルト孔側の端部が外輪よりも軸方向に突出する環状の車輪取付用ハウジングとを備えたものであって、前記ボルト孔を、内端が前記外輪の端面に達しない深さとしたことを特徴とするため、最大直径が小さく、車輪の取付性が良く、かつ十分な強度を有する車輪取付用ハウジングを備えた単列ころ軸受タイプまたは第１世代タイプの車輪用軸受装置とすることができ、トラック、バス等の大型車両の従動輪用アクスルユニットとして使用するのに適したものとなった。   The wheel bearing device according to the present invention has a rolling bearing and a wheel mounting bolt hole on one end face, and the outer ring of the rolling bearing is press-fitted into the inner periphery, and the end on the bolt hole side is more shaft than the outer ring. An annular wheel mounting housing that protrudes in the direction, wherein the bolt hole has a depth that the inner end does not reach the end face of the outer ring. It is possible to provide a single-row roller bearing type or first generation type wheel bearing device having a wheel mounting housing having a sufficient mounting strength and sufficient strength, and a driven wheel of a large vehicle such as a truck or a bus. Suitable for use as an axle unit.

この発明の実施形態を図１と共に説明する。この実施形態は、外輪回転タイプで、例えばトラック、バス等の従動輪用アクスルユニットに適用されるものである。なお、この明細書において、車両に取付けた状態で車両の車幅方向の外側寄りとなる側をアウトボード側と呼び、車両の中央寄りとなる側をインボード側と呼ぶ。   An embodiment of the present invention will be described with reference to FIG. This embodiment is an outer ring rotating type and is applied to a driven wheel axle unit such as a truck or a bus. In this specification, the side closer to the outer side in the vehicle width direction of the vehicle when attached to the vehicle is referred to as the outboard side, and the side closer to the center of the vehicle is referred to as the inboard side.

この車輪用軸受装置は、転がり軸受１と、この転がり軸受１の外周に嵌合するハウジング６とからなる。転がり軸受１は、外周面に軌道面２ａを有する一対の内輪２と、この一対の内輪２の軌道面２ａに対向する複列の軌道面３ａを内周面に有する外輪３と、これら内外輪２，３間に組み込まれた複列の転動体４とを備えている。この実施形態の場合、転動体４は円すいころであって、円すいころ軸受として構成されている。転動体４である複列の円すいころは、背面組合せで配列され、各列毎に保持器５で保持されている。   The wheel bearing device includes a rolling bearing 1 and a housing 6 fitted to the outer periphery of the rolling bearing 1. The rolling bearing 1 includes a pair of inner rings 2 having raceway surfaces 2a on the outer peripheral surface, an outer ring 3 having double-row raceway surfaces 3a facing the raceway surfaces 2a of the pair of inner rings 2, and inner and outer rings. 2 and a double row rolling element 4 incorporated between two and three. In the case of this embodiment, the rolling element 4 is a tapered roller, and is configured as a tapered roller bearing. The double row tapered rollers which are the rolling elements 4 are arranged in a combination of the back surfaces and are held by the cage 5 for each row.

ハウジング６は環状の部材である。その外周面１１は、アウトボード側へ行くほど次第に拡径するテーパ面に形成されている。また、その内周面１２は、前記外輪３が圧入される圧入面部１２ａと、この圧入面部１２ａに段差面１２ｂを介してアウトボード側へ続き前記圧入面部１２ａよりも小径な続く内側突出部１２ｃとからなる段付き円筒面状に形成されている。ハウジング６のアウトボード側の端面における周方向複数箇所に、車輪取付用のボルト孔１３が設けられている。このボルト孔１３の深さＡは、前記内側突出部１２ｃの軸方向距離Ｂよりも小さくしてある。換言すると、ボルト孔１３は、内端が外輪３のインボード側の端面に達しない深さとしてある。   The housing 6 is an annular member. The outer peripheral surface 11 is formed into a tapered surface that gradually increases in diameter toward the outboard side. Further, the inner peripheral surface 12 includes a press-fit surface portion 12a into which the outer ring 3 is press-fitted, and an inner projecting portion 12c which continues to the press-fit surface portion 12a through the step surface 12b to the outboard side and has a smaller diameter than the press-fit surface portion 12a. It is formed in the shape of a stepped cylindrical surface. Wheel mounting bolt holes 13 are provided at a plurality of locations in the circumferential direction on the end surface of the housing 6 on the outboard side. The depth A of the bolt hole 13 is smaller than the axial distance B of the inner protrusion 12c. In other words, the bolt hole 13 has a depth at which the inner end does not reach the end face on the inboard side of the outer ring 3.

転がり軸受１は、その外輪３をハウジング６の内周面圧入面部１２ａにインボード側から圧入することにより、ハウジング６に組み込まれる。組込状態では、外輪３のアウトボード側の端面がハウジング６の内周面段差部１２ｂに当接し、転がり軸受１のアウトボード側への移動が規制される。また、転がり軸受１を組み込んだ後、ハウジング６の内周に止め輪７が取付けられ、転がり軸受１のインボード側への移動が規制される。   The rolling bearing 1 is assembled into the housing 6 by press-fitting the outer ring 3 into the inner peripheral surface press-fitting surface portion 12 a of the housing 6 from the inboard side. In the assembled state, the end surface on the outboard side of the outer ring 3 comes into contact with the inner peripheral surface step portion 12b of the housing 6, and the movement of the rolling bearing 1 to the outboard side is restricted. In addition, after the rolling bearing 1 is assembled, a retaining ring 7 is attached to the inner periphery of the housing 6 to restrict the movement of the rolling bearing 1 toward the inboard side.

このように組み立てられた車輪用軸受装置には、ハウジング６のボルト孔１３に螺着するボルト（図示せず）により車輪（図示せず）が取付けられる。ボルトだけで車輪を取付けることができるため、車輪の取付性が良好である。ハウジング６の端面にボルト孔１３を設けたため、ハウジング６はフランジを有しない形状とされ、その最大直径を小さくすることができる。このため、鍛造加工等によるハウジング６の成形が容易である。   A wheel (not shown) is attached to the wheel bearing device assembled in this way by a bolt (not shown) that is screwed into the bolt hole 13 of the housing 6. Since the wheel can be mounted only with the bolt, the mounting property of the wheel is good. Since the bolt hole 13 is provided on the end face of the housing 6, the housing 6 is shaped so as not to have a flange, and the maximum diameter can be reduced. For this reason, it is easy to form the housing 6 by forging or the like.

ハウジング６は、外周面１１がアウトボード側へ行くほど次第に拡径するテーパ面に形成され、かつ内周面１２はアウトボード側の内側突出部１２ｃがインボード側の圧入面部１２ａよりも小径となる段付き円筒面状に形成されているため、アウトボード側ほど肉厚が大きくなっている。そして、その肉厚の大きなアウトボード側の部分に前記ボルト孔１３を設けたことにより、ボルト孔１３の周囲の肉厚ｔ１が小さくなることを防いでいる。
また、ボルト孔１３をその内端が外輪３のアウトボード側の端面に達しないものとしたため、ボルト孔１３とハウジング６の内周面圧入面部１２ａとの間の肉厚または最小間隔ｔ２についても十分に確保することができる。ボルト孔１３の深さＡがハウジング６の内径面内側突出部１２ｃの軸方向距離Ｂよりも小さい本実施形態（Ａ＜Ｂ）と、ボルト孔１３の深さＡ´の方がハウジング６の内径面内側突出部１２ｃの軸方向距離Ｂよりも大きい図２の比較例（Ａ´＞Ｂ）とを比べた場合、ボルト孔１３とハウジング６の内周面圧入面部１２ａとの間の肉厚に大きな違いがあるのがよく分かる（ｔ２＞ｔ２´）。
これらのことから、ハウジング６の肉厚が部分的に薄くなることが回避され、車両走行時の荷重負荷に耐えられるだけの十分なハウジング６の強度を確保することができる。 The housing 6 is formed in a tapered surface that gradually increases in diameter as the outer peripheral surface 11 goes to the outboard side, and the inner peripheral surface 12 has an inner projecting portion 12c on the outboard side having a smaller diameter than the press-fitting surface portion 12a on the inboard side. Since it is formed in the shape of a stepped cylindrical surface, the thickness increases toward the outboard side. Then, by the providing the bolt hole 13 in the portion of the large outboard side of the thickness thereof, the thickness t 1 of the periphery of the bolt hole 13 is prevented to become smaller.
Further, since the inner end of the bolt hole 13 is assumed not reach the end surface on the outboard side of the outer ring 3, the wall thickness or the minimum interval t 2 between the inner peripheral surface pressed surface 12a of the bolt hole 13 and the housing 6 Can also be adequately secured. The present embodiment (A <B) in which the depth A of the bolt hole 13 is smaller than the axial distance B of the inner diameter surface protrusion 12c of the housing 6, and the depth A ′ of the bolt hole 13 is the inner diameter of the housing 6. When compared with the comparative example (A ′> B) of FIG. 2 which is larger than the axial distance B of the in-plane protrusion 12c, the thickness between the bolt hole 13 and the inner peripheral surface press-fitting surface 12a of the housing 6 is increased. It can be clearly seen that there is a big difference (t 2 > t 2 ′).
For these reasons, it is avoided that the thickness of the housing 6 is partially reduced, and a sufficient strength of the housing 6 that can withstand the load applied during traveling of the vehicle can be ensured.

転がり軸受１は複列の円すいころ軸受であるため、同サイズの玉軸受と比べて大きなラジアル荷重を受けることができる。このため、この車輪用軸受装置は、大型車両のアクスルユニットに用いるのに適したものとなっている。   Since the rolling bearing 1 is a double row tapered roller bearing, it can receive a larger radial load than a ball bearing of the same size. For this reason, this wheel bearing device is suitable for use in an axle unit of a large vehicle.

この実施形態では第１世代タイプの車輪用軸受装置としたが、この発明は単列ころ軸受タイプの車輪用軸受装置にも適用できる。   In this embodiment, the first generation type wheel bearing device is used. However, the present invention can also be applied to a single row roller bearing type wheel bearing device.

この発明の実施形態にかかる車輪用軸受装置の断面図である。It is sectional drawing of the wheel bearing apparatus concerning embodiment of this invention. 同車輪用軸受装置に対する比較例の断面図である。It is sectional drawing of the comparative example with respect to the wheel bearing apparatus.

符号の説明Explanation of symbols

１…転がり軸受
２…内輪
３…外輪
４…転動体
６…ハウジング
１２…ハウジング内周面
１２ａ…圧入面部
１２ｂ…段差面
１２ｃ…内側突出部
１３…ボルト孔 DESCRIPTION OF SYMBOLS 1 ... Rolling bearing 2 ... Inner ring 3 ... Outer ring 4 ... Rolling element 6 ... Housing 12 ... Housing inner peripheral surface 12a ... Press-fit surface part 12b ... Step surface 12c ... Inner protrusion 13 ... Bolt hole

Claims (3)

転がり軸受と、一端の端面に車輪取付用のボルト孔を有し前記転がり軸受の外輪が内周に圧入されて前記ボルト孔側の端部が外輪よりも軸方向に突出する環状の車輪取付用ハウジングとを備えた車輪用軸受装置であって、
前記ボルト孔を、内端が前記外輪の端面に達しない深さとしたことを特徴とする車輪用軸受装置。 For rolling bearings and ring-shaped wheel mountings that have a bolt hole for wheel mounting on one end face, and the outer ring of the rolling bearing is press-fitted into the inner periphery, and the end on the bolt hole side protrudes in the axial direction from the outer ring A wheel bearing device comprising a housing,
The wheel bearing device according to claim 1, wherein the bolt hole has a depth at which an inner end does not reach an end face of the outer ring. 請求項１において、前記転がり軸受が複列の円すいころ軸受である車輪用軸受装置。   2. The wheel bearing device according to claim 1, wherein the rolling bearing is a double row tapered roller bearing. 請求項１または請求項２において、前記車輪取付用ハウジングの内径面が、前記外輪が圧入される圧入面部と、この圧入面部に段差面を介して前記一端側へ続き前記圧入面部よりも小径な内側突出部とを有する段付き円筒面状に形成され、前記外輪はその端面が、前記車輪取付用ハウジングの前記段差面に当接した車輪用軸受装置。   3. The wheel mounting housing according to claim 1, wherein an inner diameter surface of the wheel mounting housing has a press-fit surface portion into which the outer ring is press-fitted, and has a smaller diameter than the press-fit surface portion through the step surface to the one end side. The wheel bearing device is formed in a stepped cylindrical surface shape having an inner protrusion, and an end surface of the outer ring abuts on the step surface of the wheel mounting housing.
JP2006159363A 2006-06-08 2006-06-08 Bearing device for wheel Pending JP2007326473A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006159363A JP2007326473A (en) 2006-06-08 2006-06-08 Bearing device for wheel

Applications Claiming Priority (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010018176A (en) * 2008-07-11 2010-01-28 Ntn Corp Wheel bearing device and casting method of its housing
JP2010188833A (en) * 2009-02-17 2010-09-02 Jtekt Corp Wheel bearing device
JP2010188829A (en) * 2009-02-17 2010-09-02 Jtekt Corp Wheel bearing device
CN105317833A (en) * 2014-07-28 2016-02-10 优必胜(上海)精密轴承制造有限公司 Combined bearing for rolling mill
CN109650254A (en) * 2018-12-27 2019-04-19 江苏核电有限公司 A kind of nuclear power station ring hangs horizontal wheels used

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010018176A (en) * 2008-07-11 2010-01-28 Ntn Corp Wheel bearing device and casting method of its housing
JP2010188833A (en) * 2009-02-17 2010-09-02 Jtekt Corp Wheel bearing device
JP2010188829A (en) * 2009-02-17 2010-09-02 Jtekt Corp Wheel bearing device
CN105317833A (en) * 2014-07-28 2016-02-10 优必胜(上海)精密轴承制造有限公司 Combined bearing for rolling mill
CN109650254A (en) * 2018-12-27 2019-04-19 江苏核电有限公司 A kind of nuclear power station ring hangs horizontal wheels used

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