JP5029430B2 - Thrust roller bearing device - Google Patents

Thrust roller bearing device Download PDF

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JP5029430B2
JP5029430B2 JP2008054281A JP2008054281A JP5029430B2 JP 5029430 B2 JP5029430 B2 JP 5029430B2 JP 2008054281 A JP2008054281 A JP 2008054281A JP 2008054281 A JP2008054281 A JP 2008054281A JP 5029430 B2 JP5029430 B2 JP 5029430B2
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ring
flange
peripheral
race
support
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JP2009210034A (en
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聡史 増田
浩道 武村
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日本精工株式会社
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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
    • 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
    • F16C19/30Bearings 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 axial load mainly
    • 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
    • F16C33/4605Details of interaction of cage and race, e.g. retention or centring
    • 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
    • F16C33/58Raceways; Race rings
    • F16C33/583Details of specific parts of races
    • 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
    • F16C33/58Raceways; Race rings
    • F16C33/588Races of sheet metal
    • 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
    • F16C2300/00Application independent of particular apparatuses
    • F16C2300/02General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
    • 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
    • F16C33/54Cages for rollers or needles made from wire, strips, or sheet metal
    • F16C33/542Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal
    • F16C33/547Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from two parts, e.g. two discs or rings 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
    • F16C43/00Assembling bearings
    • F16C43/04Assembling rolling-contact bearings

Description

本発明は、自動車のトランスミッションやカーエアコン用コンプレッサ、工作機械等、各種機械装置の回転支持部に用いられるスラストころ軸受装置に関する。   The present invention relates to a thrust roller bearing device used for a rotation support portion of various mechanical devices such as an automobile transmission, a car air conditioner compressor, and a machine tool.
一般に、トランスミッションやカークーラ用コンプレッサ等の回転部分には、スラストころ軸受が装着され、回転軸等に加わるスラスト荷重を支承する。例えば、図9に示すように、特許文献1に記載のスラストころ軸受101では、外輪104の外輪レース部106の外周縁や内輪105の内輪レース部108の内周縁に、円筒状の外側フランジ部107や内側フランジ部109がそれぞれ一体形成されており、外側フランジ部107や内側フランジ部109によって保持器103を周方向に案内する。   In general, a thrust roller bearing is mounted on a rotating portion of a transmission, a compressor for a car cooler, and the like, and a thrust load applied to a rotating shaft or the like is supported. For example, as shown in FIG. 9, in the thrust roller bearing 101 described in Patent Document 1, a cylindrical outer flange portion is provided on the outer peripheral edge of the outer ring race portion 106 of the outer ring 104 and the inner peripheral edge of the inner ring race portion 108 of the inner ring 105. 107 and an inner flange portion 109 are integrally formed, and the cage 103 is guided in the circumferential direction by the outer flange portion 107 and the inner flange portion 109.
また、外側フランジ部107と内側フランジ部109の先端縁には、全周若しくは円周方向複数個所を部分的に、直径方向内方又は外方に折り曲げる事により、外側係止部111と内側係止部112がそれぞれ形成される。そして、保持器103とこれら係止部111、112との係合によって、保持器103と外輪104または内輪105との分離防止が図られ、スラストころ軸受101を構成する各部材が、回転部材への組み付け前に分離する事を防止することができる。   In addition, the outer edge portion 107 and the inner flange portion 109 are bent at the front edge thereof by partially bending the entire circumference or a plurality of circumferential directions inward or outward in the diametrical direction. Stop portions 112 are respectively formed. The cage 103 and the engagement portions 111 and 112 are engaged to prevent the cage 103 and the outer ring 104 or the inner ring 105 from being separated from each other, and each member constituting the thrust roller bearing 101 is turned into a rotating member. It is possible to prevent separation before assembling.
保持器103の外周面と外側フランジ部107の内周面との間には外径側軸受内隙間118が、同じく保持器103の内周面と内側フランジ部109の外周面との間には内径側軸受内隙間119が、それぞれ介在されている。外側フランジ部107は、図9(a)に示すように、ケーシング113の保持部114にがたつきなく嵌合する場合や、図9(b)に示すように、保持部114に組み付け隙間を持って緩く嵌合する場合がある。   Between the outer peripheral surface of the cage 103 and the inner peripheral surface of the outer flange portion 107, there is an outer diameter side bearing gap 118, and between the inner peripheral surface of the cage 103 and the outer peripheral surface of the inner flange portion 109. Inner diameter side bearing inner gaps 119 are interposed. As shown in FIG. 9A, the outer flange portion 107 is fitted with a holding portion 114 of the casing 113 without rattling, or as shown in FIG. May be loosely mated.
特許文献1では、これら外側フランジ部107の嵌合状態に応じて、外径側軸受内隙間118と内径側軸受内隙間119とを適当に設計し、ケーシング(外輪支持部材)113に対する内輪支持部材116の偏心を吸収すると共に、保持器103と外輪104及び内輪105との分離防止を図っている。 In Patent Document 1, in accordance with these fitted state of the outer flange portion 107, an outer diameter side bearing in the gap 118 and the inner diameter side bearing gap 119 appropriately designed, inner wheel supporting member with respect to the casing (the outer ring supporting member) 113 In addition to absorbing the eccentricity 116, the cage 103 is prevented from being separated from the outer ring 104 and the inner ring 105.
また、スラストころ軸受において、外輪104をケーシング113に、また、内輪105を内輪支持部材116に嵌合する方法としては、種々考案されている(例えば、特許文献2参照)。図10に示す方法では、外輪レース部106の内周縁から内方に延びる回り止め爪部120を設け、ケーシング113の側面に形成した嵌合部121に回り止め爪部120を嵌合させる。また、図11に示す方法では、内輪レース部108の外周縁から外方に延びる回り止め爪部130を設け、内輪支持部材(11の側面に形成した嵌合部131に回り止め爪部130を嵌合させる。これにより、外輪104とケーシング113、内輪105と内輪支持部材(11の相対回転が防止され、ケーシング113や内輪支持部材(116の支持面における摩耗や焼付き等の損傷を抑えることができる。
特開2000−266043号公報 特開平7−332358号公報
In the thrust roller bearing, various methods have been devised for fitting the outer ring 104 to the casing 113 and the inner ring 105 to the inner ring support member 116 (see, for example, Patent Document 2). In the method shown in FIG. 10, a rotation claw portion 120 extending inward from the inner peripheral edge of the outer race portion 106 is provided, and the rotation claw portion 120 is fitted to a fitting portion 121 formed on the side surface of the casing 113. In the method shown in FIG. 11, the detent pawl portion 130 extending from the outer peripheral edge of the inner ring race portion 108 outwardly disposed, detent in the fitting portion 131 formed on the side surface of the inner wheel supporting member (shaft) 11 6 pawl The part 130 is fitted. Thus, the outer ring 104 and the casing 113, the relative rotation of the inner race 105 and the inner wheel supporting member (shaft) 11 6 is prevented, suppressing wear and damage such as seizure of the supporting surface of the casing 113 and inner wheel supporting member (shaft) 116 be able to.
JP 2000-266043 A JP 7-332358 A
ところで、図9(a)及び図9(b)に示すように、外側フランジ部107を保持部114に嵌合する場合には、高負荷、高回転等の過酷な条件下では、外輪104とケーシング113との間にクリープが発生する場合があり、ケーシング113の支持面115に摩耗や焼付き等の損傷が発生する可能性があった。   By the way, as shown in FIGS. 9A and 9B, when the outer flange portion 107 is fitted to the holding portion 114, the outer ring 104 and the outer ring 104 are subjected to severe conditions such as high load and high rotation. Creep may occur between the casing 113 and the support surface 115 of the casing 113 may be damaged such as wear or seizure.
一方、図10や図11に記載の嵌合方法では、外輪104や内輪105に回り止め爪部120,130を設ける必要があるとともに、回り止め爪部120,130と嵌合するための嵌合部121,131をケーシング113や内輪支持部材116に形成する必要があるため、外輪104や内輪105の構造、また、ケーシング113や内輪支持部材116の構造が複雑になるという問題がある。また、図10や図11に記載の嵌合方法は、ケーシング113や内輪支持部材116の径方向寸法が大きくなってしまうため、スラストころ軸受を使用する限られた空間内において適用上の制約を受ける。 On the other hand, in the fitting method described in FIGS. 10 and 11, it is necessary to provide the outer ring 104 and the inner ring 105 with the non-rotating claw portions 120 and 130, and the fitting for fitting with the non-rotating claw portions 120 and 130. Since it is necessary to form the parts 121 and 131 in the casing 113 and the inner ring support member 116, there is a problem that the structure of the outer ring 104 and the inner ring 105 and the structure of the casing 113 and the inner ring support member 116 become complicated. In addition, the fitting method described in FIGS. 10 and 11 is limited in application in a limited space in which the thrust roller bearing is used because the radial dimension of the casing 113 and the inner ring support member 116 is increased. receive.
本発明は、上述した事情に鑑みてなされたものであり、その目的は、軌道輪と、ケーシングや軸など軌道輪の支持部材との支持を、比較的簡潔な構造で、安価且つ省スペースで行うことができるスラストころ軸受装置を提供することにある。 The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a relatively simple structure, inexpensive and space-saving support for a race ring and a support member for the race ring such as a casing and a shaft. It is providing the thrust roller bearing apparatus which can be performed by.
(1) 放射方向に配列される複数のころ、全体を円輪状に造られて前記複数のころを転動自在に保持する保持器、前記複数のころが転動する円輪状の外輪レース部および該外輪レース部の外周縁に全周にわたって形成された円筒状の外側フランジ部を有する外輪、および前記複数のころが転動する円輪状の内輪レース部および該内輪レース部の内周縁に全周にわたって形成された円筒状の内側フランジ部を有する内を具備し、前記外側フランジ部の先端縁の円周方向複数箇所を部分的に直径方向内方に折り曲げて形成された外側係止部と、前記内側フランジ部の先端縁の円周方向複数箇所を部分的に直径方向外方に折り曲げて形成された内側係止部と、前記保持器と、の係合によって、前記保持器と前記外輪と前記内輪との分離防止が図られたスラストころ軸受と、
前記輪を支持する外輪支持部材と、
前記内輪を支持する内輪支持部材と、
を備えたスラストころ軸受装置であって、
前記外側フランジ部には前記外側係止部によって外周溝が形成されており、
前記外輪支持部材には、前記外側係止部と対応する円周方向複数箇所に加締め部が設けられており、
前記外輪と前記外輪支持部材の相対回転を防止するように、前記加締め部が前記外周溝に係合しており、
前記外輪支持部材に対する前記内輪支持部材の偏心を吸収するために
前記保持器の外周面と、前記外側フランジ部の内周面に外径側軸受内隙間が介在し、
前記保持器の内周面と、前記内側フランジ部の外周面に内径側軸受内隙間が介在し、
前記外側フランジ部と、前記外輪支持部材との間に組み付け隙間が介在することを特徴とするスラストころ軸受装置。
(2) 放射方向に配列される複数のころ、全体を円輪状に造られて前記複数のころを転動自在に保持する保持器、前記複数のころが転動する円輪状の外輪レース部および該外輪レース部の外周縁に全周にわたって形成された円筒状の外側フランジ部を有する外輪、および前記複数のころが転動する円輪状の内輪レース部および該内輪レース部の内周縁に全周にわたって形成された円筒状の内側フランジ部を有する内を具備したスラストころ軸受と、を具備し、前記外側フランジ部の先端縁の円周方向複数箇所を部分的に直径方向内方に折り曲げて形成された外側係止部と、前記内側フランジ部の先端縁の円周方向複数箇所を部分的に直径方向外方に折り曲げて形成された内側係止部と、前記保持器と、の係合によって保持器と外輪と内輪の分離防止が図られたスラストころ軸受と、
前記輪を支持する外輪支持部材と、
前記内輪を支持する内輪支持部材と、
を備えたスラストころ軸受装置であって、
前記内側フランジ部には前記内側係止部によって外周溝が形成されており、
前記内輪支持部材には、前記内側係止部と対応する円周方向複数箇所に加締め部が設けられており、
前記内輪と前記内輪支持部材の相対回転を防止するように、前記加締め部が前記外周溝に係合しており、
前記外輪支持部材に対する前記内輪支持部材の偏心を吸収するために
前記保持器の外周面と、前記外側フランジ部の内周面に外径側軸受内隙間が介在し、
前記保持器の内周面と、前記内側フランジ部の外周面に内径側軸受内隙間が介在し、
前記内側フランジ部と、前記内輪支持部材との間に組み付け隙間が介在することを特徴とするスラストころ軸受装置。
(1) A plurality of rollers arranged in a radial direction, a cage that is formed in a ring shape as a whole and holds the plurality of rollers in a freely rollable manner, a ring-shaped outer ring race portion in which the plurality of rollers roll, and An outer ring having a cylindrical outer flange formed on the outer peripheral edge of the outer ring race part over the entire periphery, an annular inner ring race part on which the plurality of rollers roll, and an inner periphery of the inner ring race part comprising an inner ring having an inner flange portion of the formed cylindrical throughout, and the outer flange portion of the distal outer locking portion a plurality of circumferential positions are formed by bending the partly diameter inwardly of the edges The retainer and the outer ring are engaged by engagement of an inner locking portion formed by partially bending a plurality of circumferential positions of the front end edge of the inner flange portion outward in the diameter direction, and the retainer. To prevent separation from the inner ring And thrust roller bearings,
An outer ring supporting member for supporting said outer ring,
An inner ring support member for supporting the inner ring;
A thrust roller bearing device comprising:
An outer peripheral groove is formed in the outer flange portion by the outer locking portion,
The outer ring support member is provided with caulking portions at a plurality of locations in the circumferential direction corresponding to the outer locking portions,
The caulking portion is engaged with the outer circumferential groove so as to prevent relative rotation between the outer ring and the outer ring support member;
To absorb the eccentricity of the inner ring support member with respect to the outer ring support member
An outer diameter side bearing inner clearance is interposed between the outer peripheral surface of the cage and the inner peripheral surface of the outer flange portion,
An inner diameter side bearing inner clearance is interposed between the inner peripheral surface of the cage and the outer peripheral surface of the inner flange portion,
A thrust roller bearing device , wherein an assembly gap is interposed between the outer flange portion and the outer ring support member .
(2) A plurality of rollers arranged in a radial direction, a cage that is formed in a ring shape as a whole and holds the plurality of rollers in a freely rollable manner, a ring-shaped outer ring race portion in which the plurality of rollers roll, and An outer ring having a cylindrical outer flange formed on the outer peripheral edge of the outer ring race part over the entire periphery, an annular inner ring race part on which the plurality of rollers roll, and an inner periphery of the inner ring race part anda thrust roller bearing provided with the inner ring having an inner flange portion of the formed cylindrical over, a plurality of circumferential positions of the distal edge of the outer flange portion partially bent diametrically inwardly Engagement between the formed outer locking portion, the inner locking portion formed by partially bending the circumferential edge of the tip edge of the inner flange portion partially in the diametrical direction, and the cage By the cage and outer ring and inner ring A thrust roller bearing designed to prevent separation ;
An outer ring supporting member for supporting said outer ring,
An inner ring support member for supporting the inner ring;
A thrust roller bearing device comprising:
An outer peripheral groove is formed by the inner locking portion in the inner flange portion,
The inner ring support member is provided with caulking portions at a plurality of locations in the circumferential direction corresponding to the inner locking portions,
The caulking portion is engaged with the outer circumferential groove so as to prevent relative rotation between the inner ring and the inner ring support member;
To absorb the eccentricity of the inner ring support member with respect to the outer ring support member
An outer diameter side bearing inner clearance is interposed between the outer peripheral surface of the cage and the inner peripheral surface of the outer flange portion,
An inner diameter side bearing inner clearance is interposed between the inner peripheral surface of the cage and the outer peripheral surface of the inner flange portion,
A thrust roller bearing device , wherein an assembly gap is interposed between the inner flange portion and the inner ring support member .
本発明のスラストころ軸受装置によれば、一方の軌道輪は、レース部から軸方向に延びる円筒状フランジ部の先端縁部に、保持器を係止する係止部を有し、軌道輪の支持部材は、一方の軌道輪に設けられた係止部で、一方の軌道輪を支持する。これにより、一方の軌道輪と軌道輪の支持部材との支持が、当該軌道輪が保持器を係止する係止部を利用して行われるので、比較的簡潔な構造で、安価且つ省スペースで行うことができる。 According to the thrust roller bearing device of the present invention, one of the bearing rings has a locking portion that locks the cage at the tip edge portion of the cylindrical flange portion that extends in the axial direction from the race portion . The support member is a locking portion provided on one of the track rings, and supports the one of the track rings. As a result, the support of one of the race rings and the support member of the race ring is performed using a locking portion for locking the cage by the race ring, so that the structure is relatively simple, inexpensive and space-saving. Can be done.
以下、本発明に係るスラストころ軸受装置の各実施形態について図面に基づいて詳細に説明する。   Hereinafter, each embodiment of the thrust roller bearing device according to the present invention will be described in detail with reference to the drawings.
図1は、本発明の第1実施形態に係るスラストころ軸受装置を示す。本実施形態において、スラストころ軸受1は、放射方向に配列された複数のころ2と、全体を円輪状に造られて複数のころ2を転動自在に保持する保持器3と、複数のころ2を軸方向両側から挟持する外輪4及び内輪5と、を備える。   FIG. 1 shows a thrust roller bearing device according to a first embodiment of the present invention. In the present embodiment, the thrust roller bearing 1 includes a plurality of rollers 2 arranged in a radial direction, a cage 3 that is formed in an annular shape and holds the plurality of rollers 2 in a rollable manner, and a plurality of rollers. The outer ring | wheel 4 and the inner ring | wheel 5 which clamp 2 from the axial direction both sides are provided.
外輪4及び内輪5はそれぞれ、十分な硬度を有する金属板により円輪状に造られている。外輪4は、ころ2が転動する円輪状の外輪レース部6と、この外輪レース部6の外周縁に全周に亙って形成された円筒状の外側フランジ部7と、を有する。一方、内輪5は、ころ2が転接する円輪状の内輪レース部8と、この内輪レース部8の内周縁に全周に亙って形成された内側フランジ部9と、を有する。保持器3は、それぞれが断面コ字形で全体を円輪状に造られた金属板を最中状に組み合わせて成り、ころ2と同数のポケット10を放射方向に配列している。   The outer ring 4 and the inner ring 5 are each formed in an annular shape from a metal plate having sufficient hardness. The outer ring 4 includes a ring-shaped outer ring race portion 6 on which the roller 2 rolls, and a cylindrical outer flange portion 7 formed on the outer periphery of the outer ring race portion 6 over the entire circumference. On the other hand, the inner ring 5 includes a ring-shaped inner ring race portion 8 with which the roller 2 is brought into rolling contact, and an inner flange portion 9 formed on the inner periphery of the inner ring race portion 8 over the entire circumference. The cage 3 is formed by combining, in the middle, metal plates each of which is U-shaped in cross section and is formed in an annular shape as a whole, and has the same number of pockets 10 as the rollers 2 arranged in the radial direction.
図1及び図2に示すように、外側フランジ部7の先端縁には、円周方向複数個所を部分的に、直径方向内方に円弧状に折り曲げる事により、外側係止部11が形成される。外側係止部11は、押し出し加工によるステーキングタブ方式により形成されている。そして、この外側係止部11と保持器3の外周縁との係合により、保持器3と外輪4との分離防止を図っている。一方、内側フランジ部9の先端縁にも、円周方向複数個所を部分的に、直径方向外方に円弧状に折り曲げる事により、内側係止部12が形成される。そして、この内側係止部12と保持器3の内周縁との係合により、保持器3と内輪5との分離防止を図っている。従って、スラストころ軸受1を構成する各部材が、回転部材への組み付け前にも分離する事はない。   As shown in FIGS. 1 and 2, an outer locking portion 11 is formed at the distal end edge of the outer flange portion 7 by bending a plurality of circumferential portions partially in an arc shape inward in the diameter direction. The The outer locking portion 11 is formed by a staking tab method by extrusion processing. Then, the engagement between the outer locking portion 11 and the outer peripheral edge of the cage 3 prevents separation of the cage 3 and the outer ring 4. On the other hand, the inner locking portion 12 is also formed at the front end edge of the inner flange portion 9 by partially bending a plurality of portions in the circumferential direction in an arc shape outward in the diameter direction. Then, the engagement between the inner locking portion 12 and the inner peripheral edge of the cage 3 prevents separation of the cage 3 and the inner ring 5. Therefore, the members constituting the thrust roller bearing 1 are not separated even before being assembled to the rotating member.
外輪4の外周縁に形成した外側フランジ7は、外輪支持部材としてのケーシング13の保持部14に内嵌した状態で、スラスト荷重が発生する回転部分に装着される。この状態で外輪4を構成する外輪レース部6は円筒凹状の保持部14の支持面15に当接し、内輪5を構成する内輪レース部8は、内輪支持部材16の支持面17に当接する。この結果、この内輪支持部材16がケーシング13に対し回転自在に支持されると共に、これら両部材16、13同士の間に作用するスラスト荷重が支承される。なお、本実施形態では、スラストころ軸受装置は、少なくともスラストころ軸受1とケーシング13によって構成される。 The outer flange 7 formed on the outer peripheral edge of the outer ring 4 is attached to a rotating part where a thrust load is generated in a state where the outer flange 7 is fitted in a holding portion 14 of a casing 13 as an outer ring support member. In this state, the outer race part 6 constituting the outer ring 4 contacts the support surface 15 of the cylindrical concave holding part 14, and the inner race part 8 constituting the inner ring 5 contacts the support surface 17 of the inner ring support member 16. As a result, the inner ring support member 16 is rotatably supported with respect to the casing 13 and a thrust load acting between the members 16 and 13 is supported. In the present embodiment, the thrust roller bearing device includes at least the thrust roller bearing 1 and the casing 13.
また、保持器3の外周面と外側フランジ7の内周面との間には外径側軸受内隙間18が、同じく保持器3の内周面と内側フランジ9の外周面との間には内径側軸受内隙間19が、それぞれ介在される。これら両軸受内隙間18、19の存在に基づき、保持器3は、上記外輪4及び内輪5に対して、直径方向に亙る若干の変位を自在である。従って、ケーシング13に対し内輪支持部材16が偏心していた場合にも、この偏心を吸収しつつ、これら両部材13、16同士の回転を許容する。 An outer-diameter bearing clearance 18 is provided between the outer peripheral surface of the cage 3 and the inner peripheral surface of the outer flange 7, and similarly between the inner peripheral surface of the cage 3 and the outer peripheral surface of the inner flange 9. An inner diameter side bearing inner clearance 19 is interposed. Based on the presence of the bearing inner clearances 18 and 19, the cage 3 can be slightly displaced in the diameter direction with respect to the outer ring 4 and the inner ring 5. Therefore, even when the inner ring support member 16 is eccentric with respect to the casing 13, the rotation of both the members 13 and 16 is allowed while absorbing the eccentricity.
さらに、ケーシング13の保持部14には、外側フランジ部7の外側係止部11と対応する円周方向複数個所に、変形部としての加締め部30が設けられている。そして、外側フランジ部7の外側係止部11によって形成される外周溝20に、ケーシング13の加締め部30を変形させて加締め係合することで、外輪4はケーシング13に固定支持される。   Further, the holding portion 14 of the casing 13 is provided with caulking portions 30 as deforming portions at a plurality of locations in the circumferential direction corresponding to the outer locking portions 11 of the outer flange portion 7. Then, the outer ring 4 is fixedly supported by the casing 13 by deforming the caulking portion 30 of the casing 13 into the outer peripheral groove 20 formed by the outer engaging portion 11 of the outer flange portion 7 and engaging with the caulking. .
これにより、外輪4は、ケーシング13に対して相対回転が確実に防止されるので、高荷重、高速回転等の過酷な条件下でも、ケーシング13の支持面15の損傷が確実に防止され、スラストころ軸受装置としての耐久性を向上することができる。   As a result, the outer ring 4 is reliably prevented from rotating relative to the casing 13, so that damage to the support surface 15 of the casing 13 is reliably prevented even under severe conditions such as high load and high speed rotation. Durability as a roller bearing device can be improved.
また、外輪4は、ケーシング13に対して軸方向位置が規制されてケーシング13に固定支持されているので、スラストころ軸受1が装着されたケーシング13に対する内輪支持部材16の組付け作業が容易となる。 Further, since the outer ring 4 is axially fixed with respect to the casing 13 and fixedly supported by the casing 13, it is easy to assemble the inner ring support member 16 to the casing 13 on which the thrust roller bearing 1 is mounted. Become.
なお、外側フランジ部7の外側係止部11としては、図2に示した円弧状に限定されるものでなく、種々の形状が使用されている。例えば、図3に示す第1変形例のように、外側係止部11aは、ステーキングタブ方式によって断面略L形の箱型形状に形成されてもよい。また、図4に示す第2変形例のように、外側係止部11bは、円周方向に所定の長さLを持った外周溝20を有するように部分的に折り曲げた形状であってもよい。さらに、図5に示す第3変形例のように、外側係止部11cは、全周に亙って直径方向内方に折り曲げられる形状であってもよい。   In addition, as the outer side latching | locking part 11 of the outer side flange part 7, it is not limited to the circular arc shape shown in FIG. 2, Various shapes are used. For example, like the 1st modification shown in FIG. 3, the outer side latching | locking part 11a may be formed in the box shape of a cross-sectional substantially L shape by a staking tab system. Further, as in the second modified example shown in FIG. 4, the outer locking portion 11 b may have a shape that is partially bent so as to have an outer circumferential groove 20 having a predetermined length L in the circumferential direction. Good. Further, as in the third modification shown in FIG. 5, the outer locking portion 11c may be bent inward in the diametrical direction over the entire circumference.
また、図2〜図4に示すような外側係止部11,11a,11bが外側フランジ部7に形成されている場合には、加締め部30を設けて軸方向位置を規制し、且つ、相対回転を完全に防止するようにしてもよいが、外側係止部11bのような円周方向に所定の長さLを持った外周溝20を有する場合には、加締め部30と外周溝20との間に円周方向に所定の隙間gを設け、外輪4とケーシング13との間で若干の相対回転を許容するようにしてもよい。また、図5に示す第3変形例の場合、外輪4のケーシング13に対する軸方向位置が規制される。   When the outer locking portions 11, 11a, 11b as shown in FIGS. 2 to 4 are formed on the outer flange portion 7, a caulking portion 30 is provided to restrict the axial position, and Although relative rotation may be completely prevented, when the outer circumferential groove 20 having a predetermined length L is provided in the circumferential direction like the outer locking portion 11b, the caulking portion 30 and the outer circumferential groove A predetermined gap g may be provided in the circumferential direction between the outer ring 4 and the outer ring 4 and the casing 13 to allow a slight relative rotation. Moreover, in the case of the 3rd modification shown in FIG. 5, the axial direction position with respect to the casing 13 of the outer ring | wheel 4 is controlled.
図6は、本発明の第2実施形態に係るスラストころ軸受装置を示す。本実施形態では、外輪4の外側フランジ部7は、ケーシング13の保持部14に組付け隙間G1を持って緩く嵌合されている。これにより、本実施形態では、ケーシング13に対する内輪支持部材16の偏心は、外径側及び内径側軸受内隙間18、19とこの組付け隙間G1によって吸収される。この場合、ケーシング13に形成される加締め部30は、この偏心量の吸収を妨げないように、外輪4の外側係止部11の外周溝20との間に組付け隙間以上の距離を保っている。 FIG. 6 shows a thrust roller bearing device according to a second embodiment of the present invention. In the present embodiment, the outer flange portion 7 of the outer ring 4 is loosely fitted to the holding portion 14 of the casing 13 with the assembly gap G1. Thereby, in this embodiment, the eccentricity of the inner ring support member 16 with respect to the casing 13 is absorbed by the outer diameter side and inner diameter side bearing inner gaps 18 and 19 and the assembly gap G1. In this case, the caulking portion 30 formed in the casing 13 maintains a distance equal to or larger than the assembly gap between the caulking portion 30 and the outer peripheral groove 20 of the outer locking portion 11 of the outer ring 4 so as not to prevent the absorption of the eccentric amount. ing.
図7は、本発明の第3実施形態に係るスラストころ軸受装置を示す。本実施形態では、外輪4とケーシング13は、外側係止部11の外周溝20と、ケーシング13の外側係止部11に対応する位置に設けられた複数の内周溝21との両方に、係合部品としての止めピン40を嵌め込んで係合することによって固定支持される。これにより、本実施形態においても、第1実施形態と同様、外輪4のケーシング13に対する軸方向位置の規制と相対回転の防止を図ることができる。   FIG. 7 shows a thrust roller bearing device according to a third embodiment of the present invention. In the present embodiment, the outer ring 4 and the casing 13 include both the outer peripheral groove 20 of the outer locking portion 11 and the plurality of inner peripheral grooves 21 provided at positions corresponding to the outer locking portion 11 of the casing 13. It is fixedly supported by fitting and engaging a locking pin 40 as an engaging part. Thereby, also in this embodiment, the restriction | limiting of the axial position with respect to the casing 13 of the outer ring | wheel 4 and prevention of relative rotation can be aimed at similarly to 1st Embodiment.
図8は、本発明の第4実施形態に係るスラストころ軸受装置を示す。本実施形態では、内輪5の内側フランジ部9が、内輪支持部材(16の円柱部51に外嵌した状態で、スラスト荷重が発生する回転部分に装着される。この状態で外輪4を構成する外輪レース部6はケーシング13の支持面15に当接し、内輪5を構成する内輪レース部8は、内輪支持部材(16の鍔部52の支持面17に当接する。この結果、この内輪支持部材(16がケーシング13に対し回転自在に支持されると共に、これら両部材16、13同士の間に作用するスラスト荷重が支承される。従って、本実施形態では、スラストころ軸受装置は、少なくともスラストころ軸受1と内輪支持部材(16によって構成される。 FIG. 8 shows a thrust roller bearing device according to a fourth embodiment of the present invention. In the present embodiment, the inner flange portion 9 of the inner ring 5 is attached to a rotating portion where a thrust load is generated in a state in which the inner flange portion 9 of the inner ring 5 is externally fitted to the cylindrical portion 51 of the inner ring support member ( shaft ) 16. In this state, the outer ring race portion 6 constituting the outer ring 4 abuts on the support surface 15 of the casing 13, and the inner ring race portion 8 constituting the inner ring 5 contacts the support surface 17 of the flange portion 52 of the inner ring support member ( shaft ) 16. Abut. As a result, the inner ring support member ( shaft ) 16 is rotatably supported with respect to the casing 13 and a thrust load acting between the members 16 and 13 is supported. Therefore, in this embodiment, the thrust roller bearing device is constituted by at least the thrust roller bearing 1 and the inner ring support member ( shaft ) 16.
この場合、内輪支持部材(16の円柱部51には、内側フランジ部9の内側係止部12と対応する円周方向複数個所に、変形部としての加締め部53が設けられている。そして、内側フランジ部9の内側係止部12によって形成される外周溝54に、内輪支持部材(16の加締め部53を変形させて加締めることで、内輪5は内輪支持部材(16に固定支持される。従って、上記構成によって内輪5を内輪支持部材(16に固定支持する場合にも、第1実施形態と同様の効果を奏することができる。 In this case, the cylindrical portion 51 of the inner ring support member ( shaft ) 16 is provided with caulking portions 53 as deforming portions at a plurality of locations in the circumferential direction corresponding to the inner locking portions 12 of the inner flange portion 9. . Then, by deforming and crimping the caulking portion 53 of the inner ring support member ( shaft ) 16 in the outer circumferential groove 54 formed by the inner locking portion 12 of the inner flange portion 9, the inner ring 5 becomes the inner ring support member ( shaft). ) 16 is fixedly supported. Therefore, even when the inner ring 5 is fixedly supported on the inner ring support member ( shaft ) 16 by the above configuration, the same effects as those of the first embodiment can be obtained.
なお、内側フランジ部9の内側係止部12も、外側係止部11と同様に、種々の形状に形成することができ、円周方向複数個所を部分的に或いは全周に亙って、直径方向外方に折り曲げて形成することができる。このため、加締め部53も、内側係止部12の形状に応じて構成される。   In addition, the inner side locking part 12 of the inner flange part 9 can be formed in various shapes like the outer side locking part 11, and a plurality of places in the circumferential direction are partially or over the entire circumference. It can be formed by bending outward in the diameter direction. For this reason, the crimping part 53 is also comprised according to the shape of the inner side latching | locking part 12. FIG.
なお、本発明は、前述した実施形態に限定されるものではなく、適宜、変形、改良等が可能であり、前述した実施形態は、実施可能な範囲において組み合わせて適用することができる。   Note that the present invention is not limited to the above-described embodiment, and modifications, improvements, and the like can be made as appropriate. The above-described embodiments can be applied in combination within a feasible range.
例えば、保持器の形状は、本実施形態のものに限定されるものでなく、円周方向に複数のポケットが打ち抜かれた一枚の金属板によって構成されるものであってもよい。   For example, the shape of the cage is not limited to that of the present embodiment, and may be configured by a single metal plate in which a plurality of pockets are punched in the circumferential direction.
また、加締め部は、円周方向複数箇所に設けられた外側係止部又は内側係止部と同数設ける必要は無く、外輪とケーシング又は内輪と軸との相対回転や軸方向ずれを防止できるように、必要な個数設けられればよい。   Further, it is not necessary to provide the same number of crimping portions as the outer locking portions or the inner locking portions provided at a plurality of locations in the circumferential direction, and relative rotation and axial displacement between the outer ring and the casing or the inner ring and the shaft can be prevented. Thus, the necessary number may be provided.
さらに、外側フランジ部の円周方向複数箇所に外側係止部と別に、円周方向複数箇所に径方向外方に突出させた突出部分を形成し、複数の突出部分をケーシングに設けられた複数の内周溝部分に係合させることで、外輪とケーシングとの相対回転や軸方向ずれを防止できるようにしてもよい。同様に、内側フランジ部の円周方向複数箇所に内側係止部と別に、円周方向複数箇所に径方向内方に突出させた突出部分を形成し、複数の突出部分を軸に設けられた複数の外周溝部分に係合させることで、内輪と軸との相対回転や軸方向ずれを防止できるようにしてもよい。   Further, apart from the outer locking portion at a plurality of locations in the circumferential direction of the outer flange portion, projecting portions that project radially outward at a plurality of locations in the circumferential direction are formed, and a plurality of projecting portions are provided on the casing. By engaging with the inner circumferential groove portion, relative rotation and axial displacement between the outer ring and the casing may be prevented. Similarly, apart from the inner locking portion at a plurality of locations in the circumferential direction of the inner flange portion, projecting portions that are projected radially inward at a plurality of locations in the circumferential direction are formed, and a plurality of projecting portions are provided on the shaft. By engaging with a plurality of outer peripheral groove portions, relative rotation and axial displacement between the inner ring and the shaft may be prevented.
本発明の第1実施形態に係るスラストころ軸受装置の半断面図である。1 is a half sectional view of a thrust roller bearing device according to a first embodiment of the present invention. (a)は、図1の外輪の要部斜視図であり、(b)は、外輪の半断面図である。(A) is a principal part perspective view of the outer ring | wheel of FIG. 1, (b) is a half cross-sectional view of an outer ring | wheel. (a)は、第1変形例に係るの外輪の要部斜視図であり、(b)は、外輪の半断面図である。(A) is a principal part perspective view of the outer ring which concerns on a 1st modification, (b) is a half cross-sectional view of an outer ring. (a)は、第2変形例に係る外輪の要部斜視図であり、(b)は、外輪の半断面図である。(A) is a principal part perspective view of the outer ring which concerns on a 2nd modification, (b) is a half cross-sectional view of an outer ring. (a)は、第3変形例に係る外輪の要部斜視図であり、(b)は、外輪の半断面図である。(A) is a principal part perspective view of the outer ring which concerns on a 3rd modification, (b) is a half cross-sectional view of an outer ring. 本発明の第2実施形態に係るスラストころ軸受装置の半断面図である。It is a half sectional view of a thrust roller bearing device according to a second embodiment of the present invention. 本発明の第3実施形態に係るスラストころ軸受装置の半断面図である。It is a half sectional view of a thrust roller bearing device according to a third embodiment of the present invention. (a)は、本発明の第4実施形態に係るスラストころ軸受装置の半断面図であり、(b)は、第4実施形態の変形例に係るスラストころ軸受装置の半断面図である。(A) is a half sectional view of a thrust roller bearing device according to a fourth embodiment of the present invention, and (b) is a half sectional view of a thrust roller bearing device according to a modification of the fourth embodiment. 従来のスラストころ軸受装置の半断面図である。It is a half sectional view of a conventional thrust roller bearing device. (a)は、従来のスラストころ軸受装置において、外輪がケーシングに嵌合された状態を説明するための断面図であり、(b)は、その正面図である。(A) is sectional drawing for demonstrating the state by which the outer ring | wheel was fitted to the casing in the conventional thrust roller bearing apparatus, (b) is the front view. (a)は、従来のスラストころ軸受装置において、内輪が軸に嵌合された状態を説明するための断面図であり、(b)はその正面図である。(A) is sectional drawing for demonstrating the state by which the inner ring | wheel was fitted to the axis | shaft in the conventional thrust roller bearing apparatus, (b) is the front view.
1 スラストころ軸受
2 ころ
3 保持器
4 外輪(軌道輪)
5 内輪(軌道輪)
6 外輪レース部
7 外側フランジ部
8 内輪レース部
9 内側フランジ部
11 外側係止部
12 内側係止部
18 外径側軸受内隙間
19 内径側軸受内隙間
13 ケーシング(外輪支持部材)
16 内輪支持材(
30 加締め部
40 止めピン(係合部品)
1 Thrust roller bearing 2 Roller 3 Cage 4 Outer ring (Raceway ring)
5 Inner ring (Raceway)
6 outer ring race part 7 outer flange part 8 inner ring race part 9 inner flange part 11 outer latching part 12 inner latching part 18 outer diameter side bearing inner gap 19 inner diameter side bearing inner gap 13 casing ( outer ring support member)
16 inner wheel supporting member (shaft)
30 Caulking part 40 Locking pin (engaging part)

Claims (2)

  1. 放射方向に配列される複数のころ、全体を円輪状に造られて前記複数のころを転動自在に保持する保持器、前記複数のころが転動する円輪状の外輪レース部および該外輪レース部の外周縁に全周にわたって形成された円筒状の外側フランジ部を有する外輪、および前記複数のころが転動する円輪状の内輪レース部および該内輪レース部の内周縁に全周にわたって形成された円筒状の内側フランジ部を有する内を具備し、前記外側フランジ部の先端縁の円周方向複数箇所を部分的に直径方向内方に折り曲げて形成された外側係止部と、前記内側フランジ部の先端縁の円周方向複数箇所を部分的に直径方向外方に折り曲げて形成された内側係止部と、前記保持器と、の係合によって、前記保持器と前記外輪と前記内輪との分離防止が図られたスラストころ軸受と、
    前記輪を支持する外輪支持部材と、
    前記内輪を支持する内輪支持部材と、
    を備えたスラストころ軸受装置であって、
    前記外側フランジ部には前記外側係止部によって外周溝が形成されており、
    前記外輪支持部材には、前記外側係止部と対応する円周方向複数箇所に加締め部が設けられており、
    前記外輪と前記外輪支持部材の相対回転を防止するように、前記加締め部が前記外周溝に係合しており、
    前記外輪支持部材に対する前記内輪支持部材の偏心を吸収するために
    前記保持器の外周面と、前記外側フランジ部の内周面に外径側軸受内隙間が介在し、
    前記保持器の内周面と、前記内側フランジ部の外周面に内径側軸受内隙間が介在し、
    前記外側フランジ部と、前記外輪支持部材との間に組み付け隙間が介在することを特徴とするスラストころ軸受装置。
    A plurality of rollers arranged in a radial direction, a cage that is formed in a ring shape as a whole and holds the plurality of rollers in a freely rollable manner, a ring-shaped outer ring race portion on which the plurality of rollers roll, and the outer race An outer ring having a cylindrical outer flange portion formed on the outer peripheral edge of the outer peripheral portion, an annular inner ring race portion on which the plurality of rollers roll, and an inner peripheral edge of the inner ring race portion. an outer locking portion comprises an inner ring having a cylindrical inner flange portion, which is formed by bending a plurality of circumferential positions of the distal edge of the outer flange portion partially diameter inwardly and the inner The retainer, the outer ring, and the inner ring are engaged with an inner locking portion formed by partially bending a plurality of circumferential positions on the front end edge of the flange portion outward in the diameter direction, and the retainer. separation prevention of and efforts were made scan And strike roller bearings,
    An outer ring supporting member for supporting said outer ring,
    An inner ring support member for supporting the inner ring;
    A thrust roller bearing device comprising:
    An outer peripheral groove is formed in the outer flange portion by the outer locking portion,
    The outer ring support member is provided with caulking portions at a plurality of locations in the circumferential direction corresponding to the outer locking portions,
    The caulking portion is engaged with the outer circumferential groove so as to prevent relative rotation between the outer ring and the outer ring support member;
    To absorb the eccentricity of the inner ring support member with respect to the outer ring support member
    An outer diameter side bearing inner clearance is interposed between the outer peripheral surface of the cage and the inner peripheral surface of the outer flange portion,
    An inner diameter side bearing inner clearance is interposed between the inner peripheral surface of the cage and the outer peripheral surface of the inner flange portion,
    A thrust roller bearing device , wherein an assembly gap is interposed between the outer flange portion and the outer ring support member .
  2. 放射方向に配列される複数のころ、全体を円輪状に造られて前記複数のころを転動自在に保持する保持器、前記複数のころが転動する円輪状の外輪レース部および該外輪レース部の外周縁に全周にわたって形成された円筒状の外側フランジ部を有する外輪、および前記複数のころが転動する円輪状の内輪レース部および該内輪レース部の内周縁に全周にわたって形成された円筒状の内側フランジ部を有する内を具備したスラストころ軸受と、を具備し、前記外側フランジ部の先端縁の円周方向複数箇所を部分的に直径方向内方に折り曲げて形成された外側係止部と、前記内側フランジ部の先端縁の円周方向複数箇所を部分的に直径方向外方に折り曲げて形成された内側係止部と、前記保持器と、の係合によって保持器と外輪と内輪の分離防止が図られたスラストころ軸受と、
    前記輪を支持する外輪支持部材と、
    前記内輪を支持する内輪支持部材と、
    を備えたスラストころ軸受装置であって、
    前記内側フランジ部には前記内側係止部によって外周溝が形成されており、
    前記内輪支持部材には、前記内側係止部と対応する円周方向複数箇所に加締め部が設けられており、
    前記内輪と前記内輪支持部材の相対回転を防止するように、前記加締め部が前記外周溝に係合しており、
    前記外輪支持部材に対する前記内輪支持部材の偏心を吸収するために
    前記保持器の外周面と、前記外側フランジ部の内周面に外径側軸受内隙間が介在し、
    前記保持器の内周面と、前記内側フランジ部の外周面に内径側軸受内隙間が介在し、
    前記内側フランジ部と、前記内輪支持部材との間に組み付け隙間が介在することを特徴とするスラストころ軸受装置。
    A plurality of rollers arranged in a radial direction, a cage that is formed in a ring shape as a whole and holds the plurality of rollers in a freely rollable manner, a ring-shaped outer ring race portion on which the plurality of rollers roll, and the outer race An outer ring having a cylindrical outer flange portion formed on the outer peripheral edge of the outer peripheral portion, an annular inner ring race portion on which the plurality of rollers roll, and an inner peripheral edge of the inner ring race portion. a thrust roller bearing provided with the inner ring having a cylindrical inner flange portions, comprising a, which is formed by bending a plurality of circumferential positions of the distal edge of the outer flange portion partially diameter inwardly The retainer is engaged by engagement of an outer latching portion, an inner latching portion formed by partially bending the circumferential edge of the tip edge of the inner flange portion partially in the diameter direction, and the retainer. And prevention of separation of outer ring and inner ring And a thrust roller bearing is achieved,
    An outer ring supporting member for supporting said outer ring,
    An inner ring support member for supporting the inner ring;
    A thrust roller bearing device comprising:
    An outer peripheral groove is formed by the inner locking portion in the inner flange portion,
    The inner ring support member is provided with caulking portions at a plurality of locations in the circumferential direction corresponding to the inner locking portions,
    The caulking portion is engaged with the outer circumferential groove so as to prevent relative rotation between the inner ring and the inner ring support member;
    To absorb the eccentricity of the inner ring support member with respect to the outer ring support member
    An outer diameter side bearing inner clearance is interposed between the outer peripheral surface of the cage and the inner peripheral surface of the outer flange portion,
    An inner diameter side bearing inner clearance is interposed between the inner peripheral surface of the cage and the outer peripheral surface of the inner flange portion,
    A thrust roller bearing device , wherein an assembly gap is interposed between the inner flange portion and the inner ring support member .
JP2008054281A 2008-03-05 2008-03-05 Thrust roller bearing device Expired - Fee Related JP5029430B2 (en)

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