JP2006200651A - Rolling bearing device for supercharger - Google Patents

Rolling bearing device for supercharger Download PDF

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JP2006200651A
JP2006200651A JP2005014046A JP2005014046A JP2006200651A JP 2006200651 A JP2006200651 A JP 2006200651A JP 2005014046 A JP2005014046 A JP 2005014046A JP 2005014046 A JP2005014046 A JP 2005014046A JP 2006200651 A JP2006200651 A JP 2006200651A
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Prior art keywords
ring
bearing device
spacer
outer ring
supercharger
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Kunio Yanai
邦夫 柳井
Hiromi Inoue
浩海 井上
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JTEKT Corp
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JTEKT Corp
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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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines
    • F16C2360/24—Turbochargers

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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)
  • Supercharger (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bearing device capable of preventing misalignment of an inner ring and a spacer and being assembled on a driving shaft of a supercharger as an integrated unit smoothly. <P>SOLUTION: This rolling bearing device B for the supercharger is provided with an outer ring 1 composed of a single cylindrical member, a pair of inner rings 2, 3 arranged on inside diameter sides at both ends in the axial direction of the outer ring 1, respectively, a cylindrical spacer 5 arranged on an inside diameter side of the outer ring 1 and between both inner rings 2 and 3, and a rolling element 4 arranged among the outer ring 1 and the inner rings 2, 3 so as to roll freely. A step is formed on an inner peripheral face at one end of the spacer 5 and has small wall thickness. A ring member 10 is press-fitted into an inner peripheral face 9a of a part 9 in which the step is formed. A tip 10a of the ring member 10 protrudes on an inner ring 3 side to guide inside diameter of the inner ring 3 arranged on a step side among the pair of inner rings 2, 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は過給機用転がり軸受装置（以下、単に軸受装置ともいう）に関する。さらに詳しくは、ターボチャージャに代表される過給機に用いられる転がり軸受装置であって、一体型の外輪と、この外輪の軸方向両端の内径側にそれぞれ配設される一対の内輪と、両内輪間に配設されるスペーサとを備えた、カートリッジタイプの軸受装置に関する。   The present invention relates to a rolling bearing device for a supercharger (hereinafter also simply referred to as a bearing device). More specifically, it is a rolling bearing device used in a turbocharger represented by a turbocharger, and includes an integral outer ring, a pair of inner rings disposed on the inner diameter side at both axial ends of the outer ring, The present invention relates to a cartridge type bearing device including a spacer disposed between inner rings.

従来より、ターボチャージャのタービン軸を支持するために、滑り軸受や転がり軸受が使用されているが、この転がり軸受として、一体型の外輪の内径側に一対の内輪部分が配設されたものがある（例えば、特許文献１参照）。この特許文献１記載の軸受装置は、図３に示されるように、単一の筒状部材からなる外輪２１と、この外輪２１の内径側に配設される一対の内輪部分２２、２３と、前記外輪２１と各内輪部分２２、２３との間に転動自在に配設される玉列２４とを備えている。   Conventionally, a sliding bearing or a rolling bearing has been used to support the turbine shaft of the turbocharger. As the rolling bearing, a pair of inner ring portions are disposed on the inner diameter side of an integral outer ring. Yes (see, for example, Patent Document 1). As shown in FIG. 3, the bearing device described in Patent Document 1 includes an outer ring 21 formed of a single cylindrical member, a pair of inner ring portions 22 and 23 disposed on the inner diameter side of the outer ring 21, A ball row 24 is provided between the outer ring 21 and the inner ring portions 22 and 23 so as to be freely rollable.

特許文献１記載の軸受装置は、外輪が単一部材からなる、いわゆるカートリッジタイプの軸受装置であり、軸受装置一体としてターボチャージャに組み込むことができ、組込作業を簡素化することができるという利点を有するものの、内輪部分２２、２３の加工が難しいため、コスト高になるという問題がある。すなわち、各内輪部分２２、２３の外周面には前記玉列２４が転動するための軌道面２２ａ、２３ａが形成されるが、この軌道面２２ａ、２３ａは幅広の内輪部分２２、２３の端部付近に形成される。その際、片持ちの状態で前記軌道面２２ａ、２３ａが形成されるが、内輪部分２２、２３をチャッキングするのが難しく、また加工する面が振動するため、所定の精度を出すのが難しい。そのため、軌道面２２ａ、２３ａの加工に熟練と時間を要し、コスト高になっていた。
そこで、コストダウンを図るために、前記幅広の内輪部分２２、２３に代えて軌道面の加工が容易な一対の幅狭の内輪（一般的な内輪。幅方向の略中央に軌道面があり、加工が容易である）を採用し、この内輪間に筒状のスペーサを配設することが考えられる。 The bearing device described in Patent Document 1 is a so-called cartridge type bearing device in which the outer ring is formed of a single member, and can be incorporated into the turbocharger as an integrated bearing device, thereby simplifying the assembling work. However, since the inner ring portions 22 and 23 are difficult to process, there is a problem that the cost increases. That is, raceway surfaces 22a and 23a for rolling the ball train 24 are formed on the outer peripheral surfaces of the inner ring portions 22 and 23. The raceway surfaces 22a and 23a are the ends of the wide inner ring portions 22 and 23. It is formed near the part. At this time, the raceway surfaces 22a and 23a are formed in a cantilevered state, but it is difficult to chuck the inner ring portions 22 and 23, and the surface to be processed vibrates, so that it is difficult to obtain a predetermined accuracy. . For this reason, skill and time are required to process the raceway surfaces 22a and 23a, and the cost is high.
Therefore, in order to reduce the cost, a pair of narrow inner rings (general inner rings, which have a raceway surface in the approximate center in the width direction), instead of the wide inner ring portions 22 and 23, can be easily processed. It is conceivable that a cylindrical spacer is disposed between the inner rings.

特開平２−７０９２３号公報JP-A-2-70923

しかしながら、前記筒状のスペーサは、単に両内輪間に配設されているだけであり、他の部材により位置決めされていないので、ターボチャージャのタービン軸への組込み時に内輪とスペーサが芯ズレしてしまい、組込み性が悪くなり、タービン軸を軸受装置に挿入するのが難しいという問題がある。   However, since the cylindrical spacer is merely disposed between the inner rings and is not positioned by other members, the inner ring and the spacer are misaligned when the turbocharger is incorporated into the turbine shaft. Therefore, there is a problem that the assembling property is deteriorated and it is difficult to insert the turbine shaft into the bearing device.

本発明は、かかる事情に鑑みてなされたものであり、内輪とスペーサの芯ズレを防ぎ、一体ものとしてスムーズに過給機の駆動軸に組み込むことができる軸受装置を提供することを目的としている。   The present invention has been made in view of such circumstances, and an object of the present invention is to provide a bearing device that can prevent the inner ring and the spacer from being misaligned and can be smoothly integrated into the drive shaft of the supercharger. .

本発明の軸受装置は、単一の筒状部材からなる外輪と、この外輪の軸方向両端の内径側にそれぞれ配設される一対の内輪と、前記外輪の内径側であって両内輪の間に配設される筒状のスペーサと、前記外輪と内輪の間に転動自在に配設される転動体と、を備えている過給機用転がり軸受装置であって、
前記スペーサの一端の内周面に段差が形成されて薄肉にされているとともに、前記段差が形成された部分の内周面にリング部材が圧入されており、このリング部材の先端が、前記一対の内輪のうち当該段差側に配設される内輪の内径をガイドするべく当該内輪側に突出していることを特徴としている。 The bearing device of the present invention includes an outer ring made of a single cylindrical member, a pair of inner rings disposed on the inner diameter side of both ends in the axial direction of the outer ring, and an inner diameter side of the outer ring between the inner rings. A rolling bearing device for a supercharger, comprising: a cylindrical spacer disposed on the outer ring; and a rolling element disposed so as to be freely rollable between the outer ring and the inner ring,
A step is formed on the inner peripheral surface of one end of the spacer to make it thin, and a ring member is press-fitted into the inner peripheral surface of the portion where the step is formed. The inner ring protrudes toward the inner ring so as to guide the inner diameter of the inner ring disposed on the step side.

本発明の軸受装置は、一対の内輪を誤って逆の箇所に組み込むのを防止するためにスペーサに形成された段差を利用し、この段差が形成された部分の内周面にリング部材を圧入している。このリング部材の先端は、前記一対の内輪のうち当該段差側に配設される内輪側に突出しているので、当該内輪を外輪内に組み込む際に内輪の内径をガイドして、スペーサと内輪が芯ズレするのを防止することができる。これにより、軸受装置を一体ものとしてスムーズに過給機の駆動軸に組み込むことができる。   The bearing device of the present invention uses a step formed on the spacer to prevent the pair of inner rings from being mistakenly installed in the opposite place, and press-fits the ring member into the inner peripheral surface of the portion where the step is formed. is doing. Since the tip of the ring member protrudes to the inner ring side disposed on the step side of the pair of inner rings, the inner diameter of the inner ring is guided when the inner ring is incorporated into the outer ring, and the spacer and the inner ring are It is possible to prevent misalignment. As a result, the bearing device can be smoothly integrated into the drive shaft of the supercharger.

前記リング部材が筒状体からなり、この筒状体には軸方向に沿ってスリットが形成されているのが好ましい。スリットを形成することでリング部材に弾性を付与することができ、このリング部材を収縮させることにより、段差が形成された部分の内周面に簡単に当該リング部材を挿入することができる。そして、挿入後に前記収縮状態を開放することで、リング部材を段差が形成された部分の内周面に確実に圧接させることができる。また、リング部材を収縮可能にすることにより、締め代の管理がし易くなる。   It is preferable that the ring member is formed of a cylindrical body, and a slit is formed in the cylindrical body along the axial direction. By forming the slit, elasticity can be imparted to the ring member. By contracting the ring member, the ring member can be easily inserted into the inner peripheral surface of the portion where the step is formed. Then, by releasing the contracted state after insertion, the ring member can be reliably brought into pressure contact with the inner peripheral surface of the portion where the step is formed. Further, by making the ring member contractible, it becomes easy to manage the tightening allowance.

本発明の軸受装置によれば、内輪とスペーサの芯ズレを防ぎ、当該軸受装置を一体ものとしてスムーズに過給機の駆動軸に組み込むことができる。   According to the bearing device of the present invention, misalignment of the inner ring and the spacer can be prevented, and the bearing device can be smoothly incorporated into the drive shaft of the supercharger.

以下、添付図面を参照しつつ、本発明の軸受装置の実施の形態を詳細に説明する。
図１は本発明の一実施の形態に係る軸受装置の縦断面説明図である。この軸受装置Ｂは、代表的な過給機であるターボチャージャ（図示せず）に組み込まれ、外輪１と、この外輪１の軸方向両端の内径側にそれぞれ配設される一対の内輪２、３と、両内輪２、３の間に配設されるスペーサ５と、前記外輪１と内輪２、３の間に転動自在に配設される、転動体であるボール４とを備えている。なお、図１において、右側がタービン側であり、左側がコンプレッサ側である。 Hereinafter, embodiments of a bearing device of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a longitudinal sectional view of a bearing device according to an embodiment of the present invention. This bearing device B is incorporated in a turbocharger (not shown) which is a typical supercharger, and has an outer ring 1 and a pair of inner rings 2 respectively disposed on the inner diameter side of both ends of the outer ring 1 in the axial direction. 3, a spacer 5 disposed between the inner rings 2, 3, and a ball 4, which is a rolling element, is disposed between the outer ring 1 and the inner rings 2, 3 so as to roll freely. . In FIG. 1, the right side is the turbine side, and the left side is the compressor side.

前記外輪１は単一の筒状部材からなり、軸方向両端付近の内周面には、前記ボール４が転動するための軌道面１ａ、１ｂが形成されている。また、軸方向中央には外輪１が回転することを防止するためのノック孔６及び軸受内に供給される油を排出するための油排出孔７が形成されている。前記ノック孔６及び油排出孔７は、外輪１の外周面において互いに対向する位置に形成されている。   The outer ring 1 is formed of a single cylindrical member, and raceway surfaces 1a and 1b for rolling the ball 4 are formed on inner peripheral surfaces near both ends in the axial direction. Further, a knock hole 6 for preventing the outer ring 1 from rotating and an oil discharge hole 7 for discharging oil supplied into the bearing are formed in the center in the axial direction. The knock hole 6 and the oil discharge hole 7 are formed at positions facing each other on the outer peripheral surface of the outer ring 1.

前記一対の内輪２、３は、タービン側とコンプレッサ側とでは温度等の使用環境が異なるため、同じ仕様（寸法、材質等）ではなく、本実施の形態では、タービン側の内輪３の方がコンプレッサ側の内輪２よりも薄肉にされている。また、タービン側の内輪３だけに高価ではあるが耐熱性に優れた材料を使用して、全体のコストダウンを図っている。内輪２の外周面には、前記軌道面１ａと対向する軌道面２ａが形成されており、一方、内輪３の外周面には、前記軌道面１ｂと対向する軌道面３ｂが形成されている。前記軌道面１ａ及び軌道面２ａ、並びに軌道面１ｂ及び軌道面３ｂは、前記ボール４が内外輪に対して斜接するようにそれぞれの位置が設定されている。保持器８によって周方向に沿って所定間隔で配置された複数のボール４は、これら外輪１と内輪２、３の軌道面間に転動自在に配設されている。   The pair of inner rings 2 and 3 have different usage environments such as temperature on the turbine side and the compressor side. Therefore, in the present embodiment, the inner ring 3 on the turbine side is not the same specification (size, material, etc.). It is thinner than the inner ring 2 on the compressor side. In addition, the entire inner ring 3 on the turbine side is expensive, but a material having excellent heat resistance is used to reduce the overall cost. On the outer peripheral surface of the inner ring 2, a raceway surface 2 a that faces the raceway surface 1 a is formed. On the other hand, on the outer peripheral surface of the inner ring 3, a raceway surface 3 b that faces the raceway surface 1 b is formed. The positions of the raceway surface 1a and the raceway surface 2a, and the raceway surface 1b and the raceway surface 3b are set so that the balls 4 are in oblique contact with the inner and outer rings. A plurality of balls 4 arranged at predetermined intervals along the circumferential direction by the cage 8 are disposed between the raceways of the outer ring 1 and the inner rings 2 and 3 so as to roll freely.

前記スペーサ５は筒状を呈しており、前記外輪１の内径側であって両内輪２、３の間に配設されている。その際、スペーサ５のコンプレッサ側の端面５ａが、内輪２のタービン側の端面２ｃと接触し、一方、タービン側の端面５ｂが、内輪３のコンプレッサ側の端面３ｃと接触するように配設されている。また、スペーサ５の外径は、内輪２のタービン側端部の外径及び内輪３のコンプレッサ側端部の外径と等しくなるように設定されている。
スペーサ５の一端（本実施の形態では、タービン側の端部）の内周面には段差が形成されており、この段差が形成された部分９はスペーサ５の他の部分よりも薄肉になっている。前述したように、一対の内輪２、３は同じ仕様ではないので、タービン側に配設されるべき内輪３（内輪２よりも薄肉である）が誤ってコンプレッサ側に配設されることがないように、前記段差が形成されている。本発明では、かかる段差を利用して内輪とスペーサの芯ズレを防止している。すなわち、前記段差が形成された部分９の内周面９ａに短円筒形状を呈するリング部材１０が圧入されており、このリング部材１０の先端１０ａ（本明細書において、リング部材１０の「先端」とは、スペーサ５に圧入される側の端部と反対側の端部のことをいう）は、一対の内輪のうち前記段差側に配設される内輪３側に突出している。これにより、前記内輪３を外輪１内に組み込む際に当該内輪３の内径をガイドして、スペーサ５と内輪２、３が芯ズレするのを防止することができる。その結果、軸受装置Ｂを一体ものとしてスムーズにターボチャージャのタービン軸（駆動軸）に組み込むことができる。 The spacer 5 has a cylindrical shape and is disposed between the inner rings 2 and 3 on the inner diameter side of the outer ring 1. At that time, the compressor-side end surface 5 a of the spacer 5 is in contact with the turbine-side end surface 2 c of the inner ring 2, while the turbine-side end surface 5 b is in contact with the compressor-side end surface 3 c of the inner ring 3. ing. Further, the outer diameter of the spacer 5 is set to be equal to the outer diameter of the turbine side end portion of the inner ring 2 and the outer diameter of the compressor side end portion of the inner ring 3.
A step is formed on the inner peripheral surface of one end of the spacer 5 (in this embodiment, the end on the turbine side), and the portion 9 where the step is formed is thinner than the other portions of the spacer 5. ing. As described above, since the pair of inner rings 2 and 3 do not have the same specification, the inner ring 3 (thinner than the inner ring 2) to be disposed on the turbine side is not erroneously disposed on the compressor side. As described above, the step is formed. In the present invention, misalignment between the inner ring and the spacer is prevented using such a step. That is, a ring member 10 having a short cylindrical shape is press-fitted into the inner peripheral surface 9a of the portion 9 where the step is formed. Means the end opposite to the end that is press-fitted into the spacer 5), and protrudes toward the inner ring 3 disposed on the step side of the pair of inner rings. Thereby, when the inner ring 3 is assembled in the outer ring 1, the inner diameter of the inner ring 3 is guided, and the spacer 5 and the inner rings 2, 3 can be prevented from being misaligned. As a result, the bearing device B can be smoothly integrated into the turbine shaft (drive shaft) of the turbocharger.

前記リング部材１０の肉厚（径方向の寸法）は、このリング部材１０を前記段差が形成された部分９の内周面９ａに圧入した状態において、その内径が前記スペーサ５の内径と等しくなるように設定されている。リング１０は、例えば冷間圧延鋼板（ＳＰＣＣ）等で作製することができる。また、図２に示されるように、軸方向に沿ってスリット１１が形成されているのが好ましい。スリット１１を形成することでリング部材１０に弾性を付与することができ、このリング部材１０を収縮させることにより、段差が形成された部分９の内周面９ａに簡単に当該リング部材１０を挿入することができる。そして、挿入後に前記収縮状態を開放することで、リング部材１０を段差が形成された部分９の内周面９ａに確実に圧接させることができる。また、リング部材１０を収縮可能にすることにより、締め代の管理がし易くなる。   The thickness (diameter dimension) of the ring member 10 is such that the inner diameter of the ring member 10 is equal to the inner diameter of the spacer 5 when the ring member 10 is press-fitted into the inner peripheral surface 9a of the portion 9 where the step is formed. Is set to The ring 10 can be made of, for example, a cold rolled steel plate (SPCC). Moreover, as shown in FIG. 2, it is preferable that the slits 11 are formed along the axial direction. By forming the slit 11, elasticity can be imparted to the ring member 10. By contracting the ring member 10, the ring member 10 can be easily inserted into the inner peripheral surface 9 a of the portion 9 where the step is formed. can do. Then, by releasing the contracted state after insertion, the ring member 10 can be reliably brought into pressure contact with the inner peripheral surface 9a of the portion 9 where the step is formed. Moreover, by making the ring member 10 contractible, it becomes easy to manage the tightening allowance.

なお、本実施の形態では、スペーサ５のタービン側端部に段差を形成しているが、この段差はコンプレッサ側端部に形成することもできる。また、軸受装置Ｂをターボチャージャに適用したが、本発明の軸受装置はターボチャージャ以外の過給機に用いることもできる。   In the present embodiment, a step is formed at the turbine side end of the spacer 5, but this step can also be formed at the compressor side end. Further, although the bearing device B is applied to a turbocharger, the bearing device of the present invention can also be used for a supercharger other than the turbocharger.

本発明の一実施の形態に係る軸受装置の縦断面説明図である。It is a longitudinal cross-sectional explanatory drawing of the bearing apparatus which concerns on one embodiment of this invention. 図１に示される軸受装置におけるリングの斜視図である。FIG. 2 is a perspective view of a ring in the bearing device shown in FIG. 1. 従来の軸受装置の縦断面説明図である。It is longitudinal cross-sectional explanatory drawing of the conventional bearing apparatus.

符号の説明Explanation of symbols

１外輪
２、３内輪
４ボール
５スペーサ
１０リング部材
１１スリット 1 Outer ring 2, 3 Inner ring 4 Ball 5 Spacer 10 Ring member 11 Slit

Claims (2)

単一の筒状部材からなる外輪と、この外輪の軸方向両端の内径側にそれぞれ配設される一対の内輪と、前記外輪の内径側であって両内輪の間に配設される筒状のスペーサと、前記外輪と内輪の間に転動自在に配設される転動体と、を備えている過給機用転がり軸受装置であって、
前記スペーサの一端の内周面に段差が形成されて薄肉にされているとともに、前記段差が形成されている部分の内周面にリング部材が圧入されており、このリング部材の先端が、前記一対の内輪のうち当該段差側に配設される内輪の内径をガイドするべく当該内輪側に突出していることを特徴とする過給機用転がり軸受装置。 An outer ring made of a single cylindrical member, a pair of inner rings disposed on the inner diameter side of both ends in the axial direction of the outer ring, and a cylindrical shape disposed between the inner rings on the inner diameter side of the outer ring A rolling bearing device for a supercharger comprising: a spacer; and a rolling element that is rotatably arranged between the outer ring and the inner ring,
A step is formed on the inner peripheral surface of one end of the spacer to make it thin, and a ring member is press-fitted into the inner peripheral surface of the portion where the step is formed. A rolling bearing device for a supercharger, characterized in that it projects toward the inner ring side to guide the inner diameter of the inner ring disposed on the step side of the pair of inner rings. 前記リング部材が筒状体からなり、この筒状体には軸方向に沿ってスリットが形成されている請求項１に記載の過給機用転がり軸受装置。   The rolling bearing device for a supercharger according to claim 1, wherein the ring member is formed of a cylindrical body, and a slit is formed in the cylindrical body along the axial direction.
JP2005014046A 2005-01-21 2005-01-21 Rolling bearing device for supercharger Pending JP2006200651A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016084855A (en) * 2014-10-24 2016-05-19 トヨタ自動車株式会社 Bearing device of supercharger

Citations (6)

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Publication number Priority date Publication date Assignee Title
JPH04211720A (en) * 1990-03-13 1992-08-03 Skf Gmbh Bearing device
JPH1182497A (en) * 1997-08-29 1999-03-26 Ntn Corp Thrust automatic aligning roller bearing
JP2001506735A (en) * 1996-11-27 2001-05-22 アライド・シグナル・インコーポレーテツド Rotary sealing device for pressure balanced turbocharger
JP2001509571A (en) * 1997-07-10 2001-07-24 エスケイエフ エンジニアリング アンド リサーチ センター ビーブイ Bearing assembly for vehicle hub
JP2002005184A (en) * 2000-06-16 2002-01-09 Nsk Ltd Bearing device
JP2002310170A (en) * 2001-04-18 2002-10-23 Ntn Corp Thrust automatic aligning roller bearing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04211720A (en) * 1990-03-13 1992-08-03 Skf Gmbh Bearing device
JP2001506735A (en) * 1996-11-27 2001-05-22 アライド・シグナル・インコーポレーテツド Rotary sealing device for pressure balanced turbocharger
JP2001509571A (en) * 1997-07-10 2001-07-24 エスケイエフ エンジニアリング アンド リサーチ センター ビーブイ Bearing assembly for vehicle hub
JPH1182497A (en) * 1997-08-29 1999-03-26 Ntn Corp Thrust automatic aligning roller bearing
JP2002005184A (en) * 2000-06-16 2002-01-09 Nsk Ltd Bearing device
JP2002310170A (en) * 2001-04-18 2002-10-23 Ntn Corp Thrust automatic aligning roller bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016084855A (en) * 2014-10-24 2016-05-19 トヨタ自動車株式会社 Bearing device of supercharger

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