JP2008223895A - Tapered roller bearing device for wheel - Google Patents

Tapered roller bearing device for wheel Download PDF

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Publication number
JP2008223895A
JP2008223895A JP2007063469A JP2007063469A JP2008223895A JP 2008223895 A JP2008223895 A JP 2008223895A JP 2007063469 A JP2007063469 A JP 2007063469A JP 2007063469 A JP2007063469 A JP 2007063469A JP 2008223895 A JP2008223895 A JP 2008223895A
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Prior art keywords
raceway surface
tapered roller
outer ring
side raceway
inner ring
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JP2007063469A
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Japanese (ja)
Inventor
Masao Takimoto
将生 滝本
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JTEKT Corp
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JTEKT Corp
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Priority to JP2007063469A priority Critical patent/JP2008223895A/en
Publication of JP2008223895A publication Critical patent/JP2008223895A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/46Cages for rollers or needles
    • F16C33/4617Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4641Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages comprising two annular parts joined together
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings 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
    • F16C19/34Bearings 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
    • F16C19/38Bearings 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
    • F16C19/383Bearings 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
    • F16C19/385Bearings 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
    • F16C19/386Bearings 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00Articles relating to transporting
    • F16C2326/01Parts of vehicles in general
    • F16C2326/02Wheel hubs or castors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00Assembling bearings
    • F16C43/04Assembling rolling-contact bearings

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tapered roller bearing device for a wheel for simplifying the assembling of an outer ring and a hub shaft. <P>SOLUTION: This tapered roller bearing device 10 for the wheel has the outer ring 12 having outer ring side raceway surfaces 28 and 29, an inner ring 13 having an inner ring side raceway surface 26, the hub shaft 14 having an inner ring side raceway surface 22, a tapered roller 15 rollably arranged between the inner ring side raceway surface 22 and the outer ring side raceway surface 28, a first cage 16 respectively independently and rollably holding the tapered roller 15, a tapered roller 17 rollably arranged between the inner ring side raceway surface 26 and the outer ring side raceway surface 29, and a second cage 18 respectively independently and rollably holding the tapered roller 17. The first cage 16 is composed of a cage body 43 having a small annular part 40 corresponding to a small end surface of the tapered roller 15 and a columnar part 42 continuously arranged in the small annular part 40 and formed at a predetermined interval in the peripheral direction, and a large annular member 41 corresponding to a large end surface of the tapered roller 15 and installed in the columnar part 42 of the cage body 43. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、車輪用円すいころ軸受装置に関する。   The present invention relates to a tapered roller bearing device for a wheel.

従来の車輪用円すいころ軸受装置には、第三世代の円すいころ軸受装置(ハブユニット)と呼ばれるものがある(例えば、特許文献1参照)。なお、図9は車輪用円すいころ軸受装置の組立工程を示す断面図である。
特許文献1に記載の円すいころ軸受装置では、図9に示すように、外輪113とハブ軸116とを組立てるに際して、第1列の複数個の円すいころ118aを、第1の保持器125により保持した状態で、外輪113の第1の外輪側軌道面122内に配置する。このとき、円すいころ118aが第1の保持器125の径方向内方へ脱落するおそれがあるため、専用の保持治具(保持リング)140を使用することによって、第1の保持器125の径方向内方への円すいころ118aの脱落を防止している。この状態で、外輪113内にハブ軸116を挿入することにより、第1列の複数個の円すいころ118a内にハブ軸116の第1の内輪側軌道面128を配置するとともに、保持治具(保持リング)140をハブ軸116の段差面138によって円すいころ118a内から押し出すように構成されている。
A conventional tapered roller bearing device for a wheel includes what is called a third generation tapered roller bearing device (hub unit) (for example, see Patent Document 1). In addition, FIG. 9 is sectional drawing which shows the assembly process of the tapered roller bearing apparatus for wheels.
In the tapered roller bearing device described in Patent Document 1, as shown in FIG. 9, when the outer ring 113 and the hub shaft 116 are assembled, the plurality of tapered rollers 118 a in the first row are held by the first cage 125. In this state, the outer ring 113 is disposed in the first outer ring side raceway surface 122. At this time, since the tapered roller 118a may drop out inward in the radial direction of the first cage 125, the diameter of the first cage 125 can be increased by using a dedicated holding jig (holding ring) 140. The tapered roller 118a is prevented from falling inward in the direction. In this state, by inserting the hub shaft 116 into the outer ring 113, the first inner ring-side raceway surface 128 of the hub shaft 116 is disposed in the plurality of tapered rollers 118a in the first row, and a holding jig ( The holding ring 140 is pushed out from the tapered roller 118 a by the stepped surface 138 of the hub shaft 116.

特開2004−257553号公報JP 2004-257553 A

前記したように、特許文献1に記載の円すいころ軸受装置によると、第1の保持器125の径方向内方への円すいころ118aの脱落を防止するために、専用の保持治具(保持リング)140を必要であることから、外輪113とハブ軸116との組立てが複雑化するという問題があった。
本発明が解決しようとする課題は、外輪とハブ軸との組立てを簡易化することのできる車輪用円すいころ軸受装置を提供することにある。
As described above, according to the tapered roller bearing device described in Patent Document 1, in order to prevent the tapered roller 118a from falling off inward in the radial direction of the first cage 125, a dedicated holding jig (holding ring) is used. ) 140 is necessary, and there is a problem that the assembly of the outer ring 113 and the hub shaft 116 becomes complicated.
The problem to be solved by the present invention is to provide a tapered roller bearing device for a wheel that can simplify the assembly of an outer ring and a hub axle.

前記した課題は、特許請求の範囲の欄に記載された構成を要旨とする車輪用円すいころ軸受装置により解決することができる。
すなわち、特許請求の範囲の請求項1にかかる車輪用円すいころ軸受装置によると、車輪が取り付けられるハブ軸の第1の内輪側軌道面と外輪の第1の外輪側軌道面との間に、第1列の複数個の円すいころがそれぞれ転動可能に配置されるとともに、その列の複数個の円すいころが第1の保持器にそれぞれ独立的に転動可能に保持される。また、ハブ軸の内輪嵌合部に外嵌された内輪の第2の内輪側軌道面と外輪の第2の外輪側軌道面との間に、第2列の複数個の円すいころがそれぞれ転動可能に配置されるとともに、その列の複数個の円すいころが第2の保持器にそれぞれ独立的に転動可能に保持される。
ところで、外輪とハブ軸とを組立てるに際して、第1の保持器における保持器本体の隣接する柱状部の間にそれぞれ円すいころを配置してその柱状部の開放端部に大径側の環状部材を取り付けることにより、第1の保持器のポケット部内に円すいころを回転可能に支持させた状態で、外輪とハブ軸とを組立てることができる。したがって、従来の技術(特許文献1参照)で必要とされた保持治具を省略することが可能となるため、外輪とハブ軸との組立てを簡易化することができる。
The above-described problems can be solved by a tapered roller bearing device for a wheel having the gist of the configuration described in the claims.
That is, according to the tapered roller bearing device for a wheel according to claim 1 of the scope of claims, between the first inner ring side raceway surface of the hub shaft to which the wheel is attached and the first outer ring side raceway surface of the outer ring, The plurality of tapered rollers in the first row are arranged so as to be capable of rolling, and the plurality of tapered rollers in the row are held in the first cage so as to be independently rollable. In addition, a plurality of tapered rollers in the second row roll between the second inner ring side raceway surface of the inner ring and the second outer ring side raceway surface of the outer ring, which are fitted on the inner ring fitting portion of the hub axle. A plurality of tapered rollers in the row are held by the second cage so as to be independently rollable.
By the way, when assembling the outer ring and the hub shaft, tapered rollers are respectively disposed between adjacent columnar portions of the cage body in the first cage, and a large-diameter annular member is disposed at the open end of the columnar portion. By attaching, the outer ring and the hub shaft can be assembled in a state where the tapered roller is rotatably supported in the pocket portion of the first cage. Therefore, the holding jig required in the conventional technique (see Patent Document 1) can be omitted, so that the assembly of the outer ring and the hub shaft can be simplified.

また、特許請求の範囲の請求項2にかかる車輪用円すいころ軸受装置によると、保持器本体の柱状部と大径側の環状部材との間における一方の部材に設けられた係合凹部に、他方の部材に設けられた係合片を弾性的に係合することにより、保持器本体の柱状部に大径側の環状部材を容易に取り付けることができる。   Further, according to the tapered roller bearing device for a wheel according to claim 2 of the claims, the engagement recess provided in one member between the columnar portion of the cage body and the annular member on the large diameter side, By elastically engaging the engagement pieces provided on the other member, the large-diameter annular member can be easily attached to the columnar portion of the cage body.

次に、本発明を実施するための最良の形態について実施例を参照して説明する。   Next, the best mode for carrying out the present invention will be described with reference to examples.

本発明の一実施例にかかる車輪用円すいころ軸受装置を説明する。なお、図1は車輪用円すいころ軸受装置を示す断面図である。
車輪用円すいころ軸受装置10の基本的構成を説明する。図1に示すように、車輪用円すいころ軸受装置10は、外輪12と、内輪13と、ハブ軸14と、第1列の複数個の円すいころ15及び第1の保持器16と、第2列の複数個の円すいころ17及び第2の保持器18とを備えている。以下、説明の都合上、ハブ軸14、内輪13、外輪12、第1列の複数個の円すいころ15及び第1の保持器16、第2列の複数個の円すいころ17及び第2の保持器18の順に説明する。なお、本実施例の車輪用円すいころ軸受装置10の基本的構成については、前記特許文献1に記載されたものと同様であるからその詳しい説明は省略する。
A tapered roller bearing device for wheels according to an embodiment of the present invention will be described. In addition, FIG. 1 is sectional drawing which shows the tapered roller bearing apparatus for wheels.
A basic configuration of the tapered roller bearing device 10 for wheels will be described. As shown in FIG. 1, the tapered roller bearing device 10 for a wheel includes an outer ring 12, an inner ring 13, a hub shaft 14, a plurality of tapered rollers 15 and a first cage 16 in a first row, A plurality of tapered rollers 17 and a second cage 18 are provided. Hereinafter, for convenience of explanation, the hub shaft 14, the inner ring 13, the outer ring 12, the plurality of tapered rollers 15 and the first retainer 16 in the first row, the plurality of tapered rollers 17 and the second holding in the second row. The description will be made in the order of the vessel 18. Note that the basic configuration of the tapered roller bearing device 10 for a wheel according to the present embodiment is the same as that described in Patent Document 1, and therefore detailed description thereof is omitted.

ハブ軸14から説明する。前記ハブ軸14は、中空円筒状に形成されている。ハブ軸14の一端部(図1において左端部)には、径方向外方に張り出すフランジ部20が形成されている。フランジ部20は、自動車に対する車輪用円すいころ軸受装置10の組み付け状態で車両幅方向の外側に位置し、車輪である駆動輪(図示しない。)に取り付けられる。また、ハブ軸14の他端部(図1において右端部)は、その外周面を小径の円筒面とする小径円筒部21となっている。なお、小径円筒部21は、特許請求の範囲でいう「内輪嵌合部」に相当する。   The hub shaft 14 will be described. The hub shaft 14 is formed in a hollow cylindrical shape. A flange portion 20 is formed on one end portion (left end portion in FIG. 1) of the hub shaft 14 so as to project outward in the radial direction. The flange portion 20 is located on the outer side in the vehicle width direction in the assembled state of the tapered roller bearing device 10 for a vehicle with respect to an automobile, and is attached to a drive wheel (not shown) that is a wheel. Further, the other end portion (the right end portion in FIG. 1) of the hub shaft 14 is a small diameter cylindrical portion 21 whose outer peripheral surface is a small diameter cylindrical surface. The small diameter cylindrical portion 21 corresponds to an “inner ring fitting portion” in the claims.

前記ハブ軸14のフランジ部20と小径円筒部21との間の外周面には、フランジ部20側を大径としかつ小径円筒部21側を小径とする円すい状の第1の内輪側軌道面22が形成されている。第1の内輪側軌道面22と小径円筒部21の外周面との間には、その小径円筒部21側を小径とする段差面23が形成されている。なお、本実施例は、駆動輪を支持するための車輪用円すいころ軸受装置10であるため、ハブ軸14の内周面に駆動軸(図示しない。)をスプライン嵌合するスプライン孔24が形成されている。   The outer peripheral surface between the flange portion 20 and the small diameter cylindrical portion 21 of the hub shaft 14 is a conical first inner ring side raceway surface having a large diameter on the flange portion 20 side and a small diameter on the small diameter cylindrical portion 21 side. 22 is formed. Between the first inner ring side raceway surface 22 and the outer peripheral surface of the small diameter cylindrical portion 21, a step surface 23 having a small diameter on the small diameter cylindrical portion 21 side is formed. Since the present embodiment is a tapered roller bearing device 10 for supporting a driving wheel, a spline hole 24 for spline fitting a driving shaft (not shown) is formed on the inner peripheral surface of the hub shaft 14. Has been.

次に、内輪13を説明する。内輪13は、中空円筒状に形成されており、前記ハブ軸14の小径円筒部21に外嵌されている。内輪13の外周面には、内端側(図1において左端側)を小径としかつ外端側(図1において右端側)を大径とする円すい状の第2の内輪側軌道面26が形成されている。第2の内輪側軌道面26と前記第1の内輪側軌道面22とは、軸線方向(図1において左右方向)に線対称状をなしている。なお、内輪13は、ハブ軸14の段差面23に当接された状態で、ハブ軸14のスプライン孔24にスプライン嵌合される駆動軸(図示しない。)によって抜け止めされる。   Next, the inner ring 13 will be described. The inner ring 13 is formed in a hollow cylindrical shape and is externally fitted to the small diameter cylindrical portion 21 of the hub shaft 14. A conical second inner ring side raceway surface 26 is formed on the outer peripheral surface of the inner ring 13 with a small diameter at the inner end side (left end side in FIG. 1) and a large diameter at the outer end side (right end side in FIG. 1). Has been. The second inner ring side raceway surface 26 and the first inner ring side raceway surface 22 are axisymmetric in the axial direction (left-right direction in FIG. 1). The inner ring 13 is prevented from coming off by a drive shaft (not shown) that is spline-fitted into the spline hole 24 of the hub shaft 14 while being in contact with the stepped surface 23 of the hub shaft 14.

次に、外輪12を説明する。外輪12は、中空円筒状に形成されており、前記ハブ軸14及び前記内輪13に対して外嵌状に配置されている。外輪12の内周面には、ハブ軸14の第1の内輪側軌道面22に対応する円すい状の第1の外輪側軌道面28、及び、内輪13の第2の内輪側軌道面26に対応する円すい状の第2の外輪側軌道面29が、軸線方向(図1において左右方向)に線対称状に形成されている。また、外輪12には、径方向外方に張り出す取付部30が形成されている。取付部30は、車体側詳しくは懸架装置のナックル又はキャリア(図示しない。)等に取り付けられる。   Next, the outer ring 12 will be described. The outer ring 12 is formed in a hollow cylindrical shape, and is arranged in an outer fitting shape with respect to the hub shaft 14 and the inner ring 13. A conical first outer ring side raceway surface 28 corresponding to the first inner ring side raceway surface 22 of the hub axle 14 and a second inner ring side raceway surface 26 of the inner ring 13 are formed on the inner peripheral surface of the outer ring 12. A corresponding conical second outer ring side raceway surface 29 is formed in line symmetry in the axial direction (left-right direction in FIG. 1). Further, the outer ring 12 is formed with a mounting portion 30 projecting radially outward. The attachment portion 30 is attached to the vehicle body side, in detail, to a knuckle or a carrier (not shown) of the suspension device.

次に、第1列の複数個の円すいころ15及び第1の保持器16を説明する。第1列の複数個の円すいころ15は前記第1の内輪側軌道面22と前記第1の外輪側軌道面28との間にそれぞれ転動可能に配置されている。また、第1の保持器16は、第1の内輪側軌道面22と第1の外輪側軌道面28との間に対応する円すい筒状に形成されており、その周方向に所定の間隔で台形孔状をなす複数個のポケット部32が形成されている。第1の保持器16は第1の内輪側軌道面22と第1の外輪側軌道面28との間に配置され、それぞれのポケット部32に第1列の複数個の転動体としての円すいころ15をそれぞれ独立的に転動可能に保持している。これにより、円すいころ15は、第1の内輪側軌道面22と第1の外輪側軌道面28との間に周方向に等間隔に配置される。また、第1の保持器16に対する第1列の円すいころ15の取付構造については後で詳しく説明することにする。なお、第1の内輪側軌道面22を有するハブ軸14と、第1の外輪側軌道面28を有する外輪12と、第1列の複数個の円すいころ15及び第1の保持器16により、「第1列の円すいころ軸受」が構成されている。   Next, the plurality of tapered rollers 15 and the first retainer 16 in the first row will be described. The plurality of tapered rollers 15 in the first row are arranged between the first inner ring side raceway surface 22 and the first outer ring side raceway surface 28 so as to be capable of rolling. Further, the first cage 16 is formed in a corresponding conical cylinder shape between the first inner ring side raceway surface 22 and the first outer ring side raceway surface 28, and at a predetermined interval in the circumferential direction thereof. A plurality of pocket portions 32 having a trapezoidal hole shape are formed. The first cage 16 is disposed between the first inner ring side raceway surface 22 and the first outer ring side raceway surface 28, and each of the pocket portions 32 has a tapered roller as a plurality of rolling elements in the first row. 15 are held so as to be independently rollable. Accordingly, the tapered rollers 15 are arranged at equal intervals in the circumferential direction between the first inner ring side raceway surface 22 and the first outer ring side raceway surface 28. The structure for attaching the first row of tapered rollers 15 to the first cage 16 will be described in detail later. The hub shaft 14 having the first inner ring side raceway surface 22, the outer ring 12 having the first outer ring side raceway surface 28, the plurality of tapered rollers 15 and the first cage 16 in the first row, A “first row tapered roller bearing” is configured.

次に、第2列の複数個の円すいころ17及び第2の保持器18を説明する。第2列の複数個の円すいころ17は前記第2の内輪側軌道面26と前記第2の外輪側軌道面29との間にそれぞれ転動可能に配置されている。また、第2の保持器18は、第2の内輪側軌道面26と第2の外輪側軌道面29との間に対応する円すい筒状に形成されており、その周方向に所定の間隔で台形孔状をなす複数個のポケット部34が形成されている。第2の保持器18は第2の内輪側軌道面26と第2の外輪側軌道面29との間に配置され、それぞれのポケット部34に第2列の複数個の転動体としての円すいころ17をそれぞれ独立的に転動可能に保持している。これにより、円すいころ17は、第2の内輪側軌道面26と第2の外輪側軌道面29との間に周方向に等間隔に配置される。なお、第2の内輪側軌道面26を有する内輪13と、第2の外輪側軌道面29を有する外輪12と、第2列の複数個の円すいころ17及び第2の保持器18とにより、「第2列の円すいころ軸受」が構成されている。   Next, the plurality of tapered rollers 17 and the second cage 18 in the second row will be described. The plurality of tapered rollers 17 in the second row are arranged between the second inner ring side raceway surface 26 and the second outer ring side raceway surface 29 so as to be capable of rolling. Further, the second cage 18 is formed in a corresponding conical cylinder shape between the second inner ring side raceway surface 26 and the second outer ring side raceway surface 29, and at a predetermined interval in the circumferential direction thereof. A plurality of pocket portions 34 having a trapezoidal hole shape are formed. The second cage 18 is disposed between the second inner ring side raceway surface 26 and the second outer ring side raceway surface 29, and each pocket portion 34 has a tapered roller as a plurality of rolling elements in a second row. 17 is held so that it can roll independently. Thereby, the tapered rollers 17 are arranged at equal intervals in the circumferential direction between the second inner ring side raceway surface 26 and the second outer ring side raceway surface 29. The inner ring 13 having the second inner ring side raceway surface 26, the outer ring 12 having the second outer ring side raceway surface 29, the plurality of tapered rollers 17 and the second cage 18 in the second row, A “second row tapered roller bearing” is configured.

次に、前記車輪用円すいころ軸受装置10の組立方法について簡単に説明する。なお、図2は組立工程1を示す断面図、図3は組立工程2を示す断面図である。
図2に示すように、組立工程1として、第1列の複数個の円すいころ15を、第1の保持器16に保持した状態で外輪12の第1の外輪側軌道面28内に配置する。その後、外輪12の第1の外輪側軌道面28の開口側端部内に第1のシールリング36を内嵌固定する。この状態で、外輪12内にハブ軸14を挿入することにより、第1列の複数個の円すいころ15内に第1の内輪側軌道面22を配置する(図3参照)。これにともない、第1のシールリング36がハブ軸14のフランジ部20側の外周面を弾性的にシールする。
Next, a method for assembling the tapered roller bearing device 10 for wheels will be briefly described. 2 is a cross-sectional view showing the assembly process 1, and FIG. 3 is a cross-sectional view showing the assembly process 2.
As shown in FIG. 2, as the assembly process 1, a plurality of tapered rollers 15 in the first row are arranged in the first outer ring side raceway surface 28 of the outer ring 12 while being held by the first cage 16. . Thereafter, the first seal ring 36 is fitted and fixed in the opening side end portion of the first outer ring side raceway surface 28 of the outer ring 12. In this state, by inserting the hub shaft 14 into the outer ring 12, the first inner ring side raceway surface 22 is arranged in the plurality of tapered rollers 15 in the first row (see FIG. 3). Accordingly, the first seal ring 36 elastically seals the outer peripheral surface of the hub shaft 14 on the flange portion 20 side.

次に、図3に示すように、組立工程2として、第2列の複数個の円すいころ17を、第2の保持器18に保持した状態で内輪13の第2の外輪側軌道面29上に配置する。この状態で、内輪13を、前記組立工程1で組立てられたハブ軸14の小径円筒部21と外輪12との間に嵌合することにより、内輪13をハブ軸14の小径円筒部21に外嵌するとともに、第2列の複数個の円すいころ17を外輪12の第2の外輪側軌道面29内に配置する(図1参照)。そして、内輪13と外輪12との間の環状空間部に、両者間を弾性的にシールする第2のシールリング37を装着する。
上記した組立方法によって、車輪用円すいころ軸受装置10の組立てが完了する(図1参照)。
Next, as shown in FIG. 3, as the assembly process 2, the second row of tapered rollers 17 are held on the second outer ring side raceway surface 29 of the inner ring 13 while being held by the second cage 18. To place. In this state, the inner ring 13 is fitted between the small diameter cylindrical portion 21 of the hub shaft 14 and the small diameter cylindrical portion 21 of the hub shaft 14 by fitting the inner ring 13 between the small diameter cylindrical portion 21 of the hub shaft 14 and the outer ring 12. The plurality of tapered rollers 17 in the second row are disposed in the second outer ring side raceway surface 29 of the outer ring 12 (see FIG. 1). Then, a second seal ring 37 that elastically seals between the two is mounted in the annular space between the inner ring 13 and the outer ring 12.
Assembling of the tapered roller bearing device 10 for a wheel is completed by the above-described assembling method (see FIG. 1).

次に、要部である第1の保持器16に対する第1列の複数個の円すいころ15の取付構造について詳述する。なお、図4は第1列の円すいころを取り付けた第1の保持器を示す断面図、図5は図4のV−V線矢視断面図、図6は図5のVI−VI線矢視断面図、図7は保持器本体と大環状部との取付部分を一部破断して示す平面図、図8は同じく分解斜視図である。
図4に示すように、第1列の円すいころ(単に「円すいころ」という。)15は、円すい状をなす外周面15aと、小径円状をなす小径側の端面(これを「小端面」という。)15bと、大径円状をなす大径側の端面(これを「大端面」という。)15cとを有している。
Next, the mounting structure of the plurality of tapered rollers 15 in the first row with respect to the first cage 16 that is the main part will be described in detail. 4 is a cross-sectional view showing the first cage with the first row of tapered rollers attached, FIG. 5 is a cross-sectional view taken along line VV in FIG. 4, and FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a sectional view, FIG. 7 is a partially cutaway plan view showing a mounting portion between the cage main body and the large annular portion, and FIG. 8 is an exploded perspective view of the same.
As shown in FIG. 4, the first row of tapered rollers (simply referred to as “conical rollers”) 15 includes a conical outer peripheral surface 15 a and a small diameter circular end surface (this is referred to as a “small end surface”). 15b, and a large-diameter end face (this is referred to as a "large end face") 15c having a large-diameter circular shape.

また、第1の保持器16は、図4に示すように、径の異なる円環状をなす小径側の環状部(これを「小環状部」という。)40、及び、大径側の環状部(これを「大環状部」という。)41と、両環状部40,41の相互間に架設された複数本の柱状部42とを有している。第1の保持器16の周方向に隣接する柱状部42の間に、円すいころ15をそれぞれ独立的に保持する円すい台形孔状のポケット部32が形成されている(図5参照)。   Further, as shown in FIG. 4, the first retainer 16 includes a small-diameter-side annular portion (referred to as a “small annular portion”) 40 having an annular shape with different diameters, and a large-diameter-side annular portion. (This is referred to as a “macro-annular portion”) 41 and a plurality of columnar portions 42 provided between the annular portions 40 and 41. Between the columnar portions 42 adjacent to each other in the circumferential direction of the first cage 16, a conical trapezoidal hole-like pocket portion 32 that holds the tapered rollers 15 independently is formed (see FIG. 5).

図5に示すように、前記柱状部42の内周面42bは、前記円すいころ15のピッチ円15Pよりも径方向内方に位置している。また、柱状部42の外周面42cは、上記各円すいころ15のピッチ円15Pよりも径方向外方に位置している。また、前記ポケット部32の周方向の内壁面すなわち隣接する柱状部42の対向側面42aは、ピッチ円15P上に位置する円すいころ15の中心軸線15Lを中心とし、かつ円すいころ15の外径より僅かに大きい内径の断面円弧状に形成されている。これにより、隣接する柱状部42の対向側面42aの間の内周端の間隔及び外周端の間隔が円すいころ15の外径より小さく形成されており、ポケット部32内に嵌め込まれた円すいころ15の径方向内方及び外方へのそれぞれの脱落すなわち抜け外れが制限される。なお、隣接する柱状部42の対向側面42aの間の間隔及び円すいころ15の外径は、円すいころ15の軸方向に漸次変化するが、互いに相対する軸方向位置において前記関係を満たすものとする。   As shown in FIG. 5, the inner peripheral surface 42 b of the columnar portion 42 is located radially inward from the pitch circle 15 </ b> P of the tapered roller 15. Further, the outer peripheral surface 42 c of the columnar part 42 is located radially outward from the pitch circle 15 </ b> P of each tapered roller 15. Further, the inner wall surface in the circumferential direction of the pocket portion 32, that is, the opposite side surface 42 a of the adjacent columnar portion 42 is centered on the central axis 15 </ b> L of the tapered roller 15 located on the pitch circle 15 </ b> P and from the outer diameter of the tapered roller 15. It is formed in a circular arc shape with a slightly larger inner diameter. Thereby, the interval between the inner peripheral ends and the interval between the outer peripheral ends between the opposing side surfaces 42 a of the adjacent columnar portions 42 are formed smaller than the outer diameter of the tapered rollers 15, and the tapered rollers 15 fitted in the pocket portions 32. The dropout, that is, the detachment in the radially inward and outward directions is limited. In addition, although the space | interval between the opposing side surfaces 42a of the adjacent columnar part 42 and the outer diameter of the tapered roller 15 change gradually in the axial direction of the tapered roller 15, it shall satisfy | fill the said relationship in the axial direction position mutually opposed. .

前記第1の保持器16は、図4に示すように、前記隣接する柱状部42の間に円すいころ15をその軸方向に嵌合可能に構成するために、前記小環状部40及び前記複数本の柱状部42を有する保持器本体43と、大環状部(これを「大環状部材」という。)41との二部品により構成されている(図7参照)。また、保持器本体43及び大環状部材41は、それぞれ樹脂材料を射出成形することにより形成された樹脂成形品である。また、大環状部材41は、金属材料をプレス成形することにより成形することもできる。なお、大環状部材41は、特許請求の範囲でいう「大径側の環状部材」に相当する。   As shown in FIG. 4, the first retainer 16 includes the small annular portion 40 and the plurality of the plurality of small annular portions 40 so that the tapered rollers 15 can be fitted between the adjacent columnar portions 42 in the axial direction. A cage main body 43 having a columnar portion 42 and a large annular portion (referred to as a “large annular member”) 41 are configured (see FIG. 7). The cage main body 43 and the large annular member 41 are resin molded products formed by injection molding of a resin material. The large annular member 41 can also be formed by press molding a metal material. The large annular member 41 corresponds to a “large-diameter-side annular member” in the claims.

前記保持器本体43の柱状部42と前記大環状部材41との間には、次の取付手段45が設けられている。取付手段45は、大環状部材41にその軸方向に貫設された係合孔46と、保持器本体43の柱状部42の開放端面に突出されかつ前記係合孔46に係合可能に形成された係合片48とにより構成されている(図7及び図8参照)。
図8に示すように、係合片48は、柱状部42の開放端面に平行状に一体形成された二股状の一対の係合脚部48aと、その両係合脚部48aの先端部に相反方向に膨出する係止爪部48bとを備えている。両係合脚部48aは、その先端部を相互に近付ける方向に弾性変形いわゆる撓み変形可能に形成されている(図7中、二点鎖線48a参照)。なお、取付手段45は、各柱状部42にそれぞれ対応して設けてもよいし、あるいは、周方向に所定本数ごとに位置する各柱状部42に対応して設けてもよい。
Between the columnar portion 42 of the retainer main body 43 and the large annular member 41, the following attachment means 45 is provided. The attachment means 45 is formed to be able to engage with the engagement hole 46 that protrudes from the open end surface of the columnar portion 42 of the retainer body 43 and the engagement hole 46 that penetrates the large annular member 41 in the axial direction. The engaging piece 48 is formed (see FIGS. 7 and 8).
As shown in FIG. 8, the engagement piece 48 has a pair of bifurcated engagement leg portions 48a integrally formed in parallel with the open end surface of the columnar portion 42, and a reciprocal direction at the distal end portions of both engagement leg portions 48a. And a locking claw portion 48b that bulges out. Both the engagement legs 48a are formed so as to be elastically deformed, that is, so-called flexibly deformed in a direction in which their distal ends approach each other (see a two-dot chain line 48a in FIG. 7). Note that the attachment means 45 may be provided corresponding to each columnar portion 42, or may be provided corresponding to each columnar portion 42 that is positioned at a predetermined number in the circumferential direction.

前記保持器本体43に前記大環状部材41を取り付けるには、保持器本体43の隣接する柱状部42の間に前記円すいころ15をその軸方向にそれぞれ嵌合することにより配置する。このとき、保持器本体43の隣接する柱状部42の間のポケット部32の開口側から小環状部40に向かって、円すいころ15がその小端面15bを先方すなわち小環状部40側に向けて軸方向に移動させつつその隣接する柱状部42の間に嵌合される(図5参照)。   In order to attach the large annular member 41 to the cage main body 43, the tapered rollers 15 are respectively fitted in the axial direction between adjacent columnar portions 42 of the cage main body 43. At this time, from the opening side of the pocket portion 32 between the adjacent columnar portions 42 of the cage main body 43 toward the small annular portion 40, the tapered roller 15 has its small end surface 15 b toward the tip, that is, the small annular portion 40 side. It is fitted between the adjacent columnar portions 42 while being moved in the axial direction (see FIG. 5).

続いて、保持器本体43の柱状部42の開放端部に取付手段45を介して大環状部材41が取り付けられる。詳しくは、柱状部42の係合片48を大環状部材41の係合孔46内に相対的に挿入すると、両係止爪部48bにより両係止脚部48aが相互に撓み変形されつつ係合孔46内を摺動していく。そして、両係止爪部48bが係合孔46を通過した時点で、両係止脚部48aが弾性復元することにより、両係止爪部48bが係合孔46の口縁部に係止されて係合片48が抜止めされる。このようにして、保持器本体43に大環状部材41が取り付けられる(図7参照)。なお、係合孔46は、特許請求の範囲でいう「係合凹部」に相当する。   Subsequently, the large annular member 41 is attached to the open end of the columnar portion 42 of the cage main body 43 via the attachment means 45. Specifically, when the engaging piece 48 of the columnar part 42 is relatively inserted into the engaging hole 46 of the large annular member 41, the engaging leg parts 48a are bent and deformed by the engaging claw parts 48b. The inside of the joint hole 46 slides. When both the locking claws 48b pass through the engagement holes 46, both the locking legs 48b are elastically restored, so that both the locking claws 48b are locked to the edge of the engagement holes 46. Thus, the engagement piece 48 is prevented from being removed. In this way, the large annular member 41 is attached to the cage main body 43 (see FIG. 7). The engagement hole 46 corresponds to an “engagement recess” in the claims.

前記した車輪用円すいころ軸受装置10によると、図2に示すように、外輪12とハブ軸14とを組立てるに際して、第1の保持器16における保持器本体43の隣接する柱状部42の間にそれぞれ円すいころ15を配置して柱状部42の開放端部に大環状部材41を取付手段45を介して取り付ける(図4〜図7参照)。これにより、第1の保持器16の各ポケット部32内に円すいころ15をそれぞれ回転可能に支持させることができる。このように、複数個の円すいころ15を、第1の保持器16により支持した状態で、外輪12の第1の外輪側軌道面28内に配置する(図2参照)。この状態で、外輪12内にハブ軸14を挿入し、複数個の円すいころ15内にハブ軸14の第1の内輪側軌道面22を配置することによって、外輪12とハブ軸14とを組立てることができる(図3参照)。したがって、従来の技術(特許文献1参照)で必要とされた保持治具を省略することが可能となるため、外輪12とハブ軸14との組立てを簡易化することができる。   According to the tapered roller bearing device 10 for a wheel described above, as shown in FIG. 2, when the outer ring 12 and the hub shaft 14 are assembled, the first retainer 16 is disposed between the adjacent columnar portions 42 of the retainer main body 43. The tapered rollers 15 are disposed, and the large annular member 41 is attached to the open end of the columnar part 42 via the attachment means 45 (see FIGS. 4 to 7). Thereby, the tapered roller 15 can be rotatably supported in each pocket portion 32 of the first cage 16. In this way, the plurality of tapered rollers 15 are arranged in the first outer ring side raceway surface 28 of the outer ring 12 in a state where they are supported by the first cage 16 (see FIG. 2). In this state, the outer ring 12 and the hub shaft 14 are assembled by inserting the hub shaft 14 into the outer ring 12 and disposing the first inner ring side raceway surface 22 of the hub shaft 14 in the plurality of tapered rollers 15. (See FIG. 3). Therefore, it becomes possible to omit the holding jig required in the conventional technique (see Patent Document 1), so that the assembly of the outer ring 12 and the hub shaft 14 can be simplified.

また、第1の保持器16の大環状部材41に設けられた係合孔46に保持器本体43の柱状部42に設けられた係合片48を弾性的に係合することにより、保持器本体43の柱状部42に大環状部材41を容易に取り付けることができる。   Further, the retainer 48 is elastically engaged with the engagement hole 46 provided in the large annular member 41 of the first retainer 16, so that the retainer body 43 is provided with the engagement piece 48. The large annular member 41 can be easily attached to the columnar portion 42 of the main body 43.

本発明は前記実施例に限定されるものではなく、本発明の要旨を逸脱しない範囲における変更が可能である。例えば、前記実施例では、第1の保持器16において、保持器本体43の柱状部42に係合片48を設け、大環状部材41に係合孔(係合凹部)46を設けたが、これに代え、大環状部材41に係合片48を設け、保持器本体43の柱状部42に係合孔(係合凹部)46を設けることもできる。また、保持器本体43の柱状部42と大環状部材41は、前記係合片48と係合孔(係合凹部)46とによる取付手段45の他、その他の取付構造、例えばねじ止め、クリップ止め、接着剤による接着等の取付手段に代えることもできる。また、第1の保持器16に対する円すいころ15の取付構造は、第2の保持器18に対する円すいころ17の取付構造に適用することも可能である。なお、前記実施例においては、駆動輪側に用いられる車輪用円すいころ軸受装置としたが、従動輪側の車輪用円すいころ軸受装置にも同様に適用可能である。   The present invention is not limited to the above-described embodiments, and modifications can be made without departing from the gist of the present invention. For example, in the first embodiment, in the first retainer 16, the engagement piece 48 is provided in the columnar portion 42 of the retainer main body 43, and the engagement hole (engagement recess) 46 is provided in the large annular member 41. Instead of this, the engagement piece 48 may be provided on the large annular member 41, and the engagement hole (engagement recess) 46 may be provided on the columnar portion 42 of the cage main body 43. Further, the columnar portion 42 and the large annular member 41 of the cage main body 43 are provided with other mounting structures such as screws and clips in addition to the mounting means 45 by the engagement pieces 48 and the engagement holes (engagement recesses) 46. It can also be replaced with attachment means such as fastening or adhesive bonding. Further, the structure for attaching the tapered roller 15 to the first cage 16 can be applied to the structure for attaching the tapered roller 17 to the second cage 18. In the above-described embodiment, the tapered roller bearing device for wheels used on the drive wheel side is used, but the present invention can be similarly applied to the tapered roller bearing device for wheels on the driven wheel side.

本発明の一実施例にかかる車輪用円すいころ軸受装置を示す断面図である。It is sectional drawing which shows the tapered roller bearing apparatus for wheels concerning one Example of this invention. 組立工程1を示す断面図である。It is sectional drawing which shows the assembly process 1. FIG. 組立工程2を示す断面図である。It is sectional drawing which shows the assembly process 2. FIG. 第1列の円すいころを取り付けた第1の保持器を示す断面図である。It is sectional drawing which shows the 1st holder | retainer which attached the tapered roller of the 1st row | line. 図4のV−V線矢視断面図である。FIG. 5 is a cross-sectional view taken along line VV in FIG. 4. 図5のVI−VI線矢視断面図である。FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. 保持器本体と大環状部との取付部分を一部破断して示す平面図である。It is a top view which fractures | ruptures and shows the attachment part of a holder main body and a large annular part partially. 保持器本体と大環状部との取付部分を示す分解斜視図である。It is a disassembled perspective view which shows the attachment part of a retainer main body and a large annular part. 従来の技術にかかる車輪用円すいころ軸受装置の組立工程を示す断面図である。It is sectional drawing which shows the assembly process of the tapered roller bearing apparatus for wheels concerning the prior art.

符号の説明Explanation of symbols

10 車輪用円すいころ軸受装置
12 外輪
13 内輪
14 ハブ軸
15 第1列の円すいころ
15a 外周面
15b 小端面(小径側の端面)
15c 大端面(大径側の端面)
16 第1の保持器
17 第2列の円すいころ
18 第2の保持器
21 小径円筒部(内輪嵌合部)
22 第1の内輪側軌道面
26 第2の内輪側軌道面
28 第1の外輪側軌道面
29 第2の外輪側軌道面
40 小環状部(小径側の環状部)
41 大環状部材(大環状部、大径側の環状部材)
42 柱状部
43 保持器本体
46 係合孔(係合凹部)
48 係合片
DESCRIPTION OF SYMBOLS 10 Tapered roller bearing apparatus for wheels 12 Outer ring 13 Inner ring 14 Hub axle 15 First row of tapered rollers 15a Outer peripheral surface 15b Small end surface (end surface on the small diameter side)
15c Large end face (end face on the large diameter side)
16 First cage 17 Tapered roller in second row 18 Second cage 21 Small diameter cylindrical portion (inner ring fitting portion)
22 First inner ring side raceway surface 26 Second inner ring side raceway surface 28 First outer ring side raceway surface 29 Second outer ring side raceway surface 40 Small annular portion (small diameter side annular portion)
41 Large annular member (large annular part, large diameter annular member)
42 Columnar part 43 Cage body 46 Engagement hole (engagement recessed part)
48 engagement piece

Claims (2)

複列をなす第1の外輪側軌道面及び第2の外輪側軌道面を備え、かつ、車体側に取り付けられる外輪と、
前記第2の外輪側軌道面に対応する第2の内輪側軌道面を備えた内輪と、
前記第1の外輪側軌道面に対応する第1の内輪側軌道面、及び、前記内輪を外嵌する内輪嵌合部を備え、かつ、車輪が取り付けられるハブ軸と、
前記第1の内輪側軌道面と前記第1の外輪側軌道面との間にそれぞれ転動可能に配置された第1列の複数個の円すいころ、及び、その列の複数個の円すいころをそれぞれ独立的に転動可能に保持する第1の保持器と、
前記第2の内輪側軌道面と前記第2の外輪側軌道面との間にそれぞれ転動可能に配置された第2列の複数個の円すいころ、及び、その列の複数個の円すいころをそれぞれ独立的に転動可能に保持する第2の保持器と
を備えた車輪用円すいころ軸受装置であって、
前記第1の保持器が、前記円すいころの小径側の端面に対応する小径側の環状部、及び、その小径側の環状部に連設されかつ周方向に所定の間隔で形成された複数本の柱状部を有する保持器本体と、前記円すいころの大径側の端面に対応しかつ前記保持器本体の柱状部の開放端部に取り付けられる大径側の環状部材とにより構成されていることを特徴とする車輪用円すいころ軸受装置。
An outer ring provided with a first outer ring side raceway surface and a second outer ring side raceway surface forming a double row, and attached to the vehicle body side;
An inner ring provided with a second inner ring side raceway surface corresponding to the second outer ring side raceway surface;
A first inner ring side raceway surface corresponding to the first outer ring side raceway surface, and a hub shaft provided with an inner ring fitting portion for externally fitting the inner ring, to which a wheel is attached;
A plurality of tapered rollers in a first row and a plurality of tapered rollers in the rows arranged to be rollable between the first inner ring side raceway surface and the first outer ring side raceway surface, respectively. A first cage that holds each roll independently,
A plurality of tapered rollers in a second row, and a plurality of tapered rollers in the row, which are arranged so as to be capable of rolling between the second inner ring side raceway surface and the second outer ring side raceway surface, respectively. A tapered roller bearing device for a wheel provided with a second cage that holds each of them independently for rolling,
The first retainer includes an annular portion on the small diameter side corresponding to the end surface on the small diameter side of the tapered roller, and a plurality of the first cages that are connected to the annular portion on the small diameter side and formed at predetermined intervals in the circumferential direction. A cage main body having a columnar portion and a ring member on the large diameter side corresponding to the end surface on the large diameter side of the tapered roller and attached to the open end of the columnar portion of the cage main body. Tapered roller bearing device for wheels.
請求項1に記載の車輪用円すいころ軸受装置であって、
前記保持器本体の柱状部と前記大径側の環状部材との間における一方の部材に係合凹部が設けられ、他方の部材に前記係止凹部に弾性的に係合可能な係合片が設けられていることを特徴とする車輪用円すいころ軸受装置。
A tapered roller bearing device for a wheel according to claim 1,
An engagement recess is provided in one member between the columnar portion of the retainer body and the annular member on the large diameter side, and an engagement piece that can be elastically engaged with the engagement recess is provided in the other member. A tapered roller bearing device for a wheel characterized by being provided.
JP2007063469A 2007-03-13 2007-03-13 Tapered roller bearing device for wheel Pending JP2008223895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007063469A JP2008223895A (en) 2007-03-13 2007-03-13 Tapered roller bearing device for wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007063469A JP2008223895A (en) 2007-03-13 2007-03-13 Tapered roller bearing device for wheel

Publications (1)

Publication Number Publication Date
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Family

ID=39842758

Family Applications (1)

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014047804A (en) * 2012-08-29 2014-03-17 Jtekt Corp Holder for cone roller bearing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59155622A (en) * 1983-02-22 1984-09-04 Koyo Seiko Co Ltd Retainer made of plastic for roller bearing
JPH02130427A (en) * 1988-11-10 1990-05-18 Hitachi Heating Appliance Co Ltd Residue detector for oil tank
JPH10281164A (en) * 1997-04-04 1998-10-20 Nippon Seiko Kk Circular cone shaped rolling bearing holder
JP2000065049A (en) * 1998-08-24 2000-03-03 Nippon Seiko Kk Automotive hub unit and assembling method for it
JP2004257553A (en) * 2003-02-07 2004-09-16 Koyo Seiko Co Ltd Assembling method of rolling bearing unit
JP2005291499A (en) * 2005-05-09 2005-10-20 Nsk Ltd Hub unit assembling method for automobile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59155622A (en) * 1983-02-22 1984-09-04 Koyo Seiko Co Ltd Retainer made of plastic for roller bearing
JPH02130427A (en) * 1988-11-10 1990-05-18 Hitachi Heating Appliance Co Ltd Residue detector for oil tank
JPH10281164A (en) * 1997-04-04 1998-10-20 Nippon Seiko Kk Circular cone shaped rolling bearing holder
JP2000065049A (en) * 1998-08-24 2000-03-03 Nippon Seiko Kk Automotive hub unit and assembling method for it
JP2004257553A (en) * 2003-02-07 2004-09-16 Koyo Seiko Co Ltd Assembling method of rolling bearing unit
JP2005291499A (en) * 2005-05-09 2005-10-20 Nsk Ltd Hub unit assembling method for automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014047804A (en) * 2012-08-29 2014-03-17 Jtekt Corp Holder for cone roller bearing

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