EP2836730A1 - Palier radial - Google Patents

Palier radial

Info

Publication number
EP2836730A1
EP2836730A1 EP13715223.7A EP13715223A EP2836730A1 EP 2836730 A1 EP2836730 A1 EP 2836730A1 EP 13715223 A EP13715223 A EP 13715223A EP 2836730 A1 EP2836730 A1 EP 2836730A1
Authority
EP
European Patent Office
Prior art keywords
radial bearing
oil
supply channel
bearing body
pocket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13715223.7A
Other languages
German (de)
English (en)
Inventor
Jochen Laubender
Thanh-Hung Nguyen-Schäfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BMTS Technology GmbH and Co KG
Original Assignee
Bosch Mahle Turbo Systems GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Mahle Turbo Systems GmbH and Co KG filed Critical Bosch Mahle Turbo Systems GmbH and Co KG
Publication of EP2836730A1 publication Critical patent/EP2836730A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • F16C33/1025Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1065Grooves on a bearing surface for distributing or collecting the liquid
    • 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
    • F16C17/00Sliding-contact bearings for exclusively rotary movement
    • F16C17/02Sliding-contact bearings for exclusively rotary movement for radial load only
    • 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
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • F16C33/1025Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • 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
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • F16C33/1025Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1075Wedges, e.g. ramps or lobes, for generating pressure
    • 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
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • F16C33/1025Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1085Channels or passages to recirculate the liquid in the bearing
    • 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
    • F16C2360/00Engines or pumps
    • F16C2360/23Gas turbine engines
    • F16C2360/24Turbochargers

Definitions

  • the present invention relates to a radial bearing with a bearing body, in which a shaft can be arranged, having the features of the preamble of claim 1.
  • a radial bearing serves to support a rotating shaft and is used for example in an exhaust gas turbocharger for an internal combustion engine.
  • a generic radial bearing is known from DE 10 2008 000853 A1.
  • the radial bearing comprises a cylindrical bearing body, which forms a receiving space for the shaft to be arranged therein.
  • a lubricant such as lubricating oil, which is arranged upon rotation of the shaft between the shaft and the receiving space or the shaft facing inner wall of the bearing body to a direct mechanical contact between to avoid the shaft and the inner wall.
  • a plurality of transverse grooves are formed in the inner wall, which extend in the axial direction and are separated from each other in the circumferential direction by separating sections, said Supply channels are arranged in the separating sections.
  • the present invention is concerned with the problem of providing an improved or at least different embodiment of a radial bearing of the generic type.
  • Specify form which is characterized in particular by a reduced wear and / or an extended life.
  • the present invention is based on the general idea, the inner wall of the bearing body in areas where it may come between the shaft and the inner wall to a caused by a lack of lubricant direct contact, equip with at least one oil pocket and thus a lubricant reservoir or lubricant storage available provide these areas when the rotating shaft with the lubricant, so that said direct contact between the shaft and the inner wall prevents o- is at least reduced.
  • the invention uses the knowledge that such lack of lubricant and consequently direct contacts between the shaft and the inner wall in particular by the shape of the inner wall, in particular the formation of the transverse grooves, are caused and occur predominantly in the region of the separating sections. Accordingly, the at least one oil pocket is arranged in such a separation section.
  • the radial bearing according to the invention comprises the bearing body, which has or forms the receiving space for the shaft to be arranged therein.
  • the receiving space facing inner wall of the bearing body transverse to the circumferential direction in the axial direction extending transverse grooves are formed, which are separated from each other in the circumferential direction by said separating sections.
  • the axial direction is given with respect to the longitudinal extent of the bearing body or the shaft or through the axis of rotation of the shaft, while the circumferential direction refers to the inner wall.
  • the bearing body is expediently designed as a hollow cylinder, so that the receiving space preferably has a circular cross-section.
  • At least one such supply channel is provided, which passes through the bearing body and for this purpose extends substantially in particular in the radial direction and is arranged in such a separation section.
  • the supply channel is preferably realized in the form of a breakthrough or a bore in the bearing body, so that lubricant or lubricating oil or short oil can be passed through the supply channel into the receiving space and in particular to the inner wall of the bearing body.
  • at least one such oil pocket spaced from the associated supply channel is formed in at least one such separating section.
  • the oil pocket is preferably designed in the form of a recess in the inner wall in order to store and / or make available lubricant or oil in order to prevent or at least reduce said direct contact between the shaft and the inner wall.
  • the respective transverse groove can in principle extend in the axial direction over any axial length of the bearing body.
  • the respective transverse groove preferably has larger dimensions or is larger than the respective oil pocket.
  • at least one transverse groove extends continuously in the axial direction and thus extends over the entire axial length of the bearing body.
  • the radial bearing can in particular be designed as a rotatable radial bearing, in which the radial bearing, in particular the bearing body, in an associated housing, for example, in an associated bearing housing a charger, is rotatably mounted and can rotate accordingly in the housing. This rotation takes place in the circumferential direction and can be done in a clockwise or counterclockwise direction.
  • the spaced apart arrangement of the oil pocket to the associated supply channel is expediently implemented such that the oil pocket is arranged offset in the axial direction of the supply channel.
  • the oil pocket is also arranged offset in the circumferential direction of the supply channel, wherein embodiments are preferred in which the oil bag is arranged offset in both the axial direction and in the circumferential direction of the supply channel.
  • the oil pocket is arranged offset in a direction of rotation of the shaft in the circumferential direction of the associated supply channel. This serves in particular the purpose of promoting lubricant, which passes from the supply channel into the receiving space, by the movement of the shaft into the oil pocket.
  • the Oltasche is at least partially formed on such a transverse groove.
  • the oil bag can be open to the transverse groove.
  • the Oltasche can pass open into the transverse groove.
  • the oil pocket is formed in regions in such a transverse groove.
  • a pocket depth of the oil pocket running along the radial direction is preferably smaller than a transverse groove depth of the transverse groove extending along the radial direction, in particular as a maximum transverse depth of the transverse groove depth.
  • such oil pockets are associated with such a supply channel to enhance the prevention or reduction of direct contact between the shaft and the inner wall.
  • the two oil pockets are preferably arranged offset uniformly from the associated supply channel. That is, the two oil pockets have an equal axial distance to the supply channel.
  • the two oil pockets can also have the same distance to the supply channel along the circumferential direction.
  • the pocket depth of the respective oil pocket can basically have any desired course.
  • the pocket depth along a running in the circumferential direction of longitudinal section, in particular starting from a deepest Position have a smooth or a rising course.
  • the pocket depth may also have a uniform or rising profile along a cross-section running in the axial direction, in particular starting from the lowest point.
  • the pocket depth preferably increases in order to form a kind of "ramp" for the lubricant and thus to supply the corresponding area of the inner wall with lubricant.
  • the pocket depth of the respective oil pocket can also run steplessly or steppedly, wherein a stepped course is preferred in order to form within the oil pocket at least one region from which the lubricant is more difficult to get out, in particular can flow out.
  • a separating section with two or more oil pockets, which are formed adjacent in the circumferential direction.
  • the respective adjacent oil pockets can be spaced apart from each other along the circumferential direction or be arranged directly adjacent.
  • the arrangement of a plurality of oil pockets adjacent in the circumferential direction serves, in particular, for the purpose of providing such a lubricant reservoir or reservoir in an enlarged region of the separating section in order to allow direct contact between the shaft and the inner wall even at increased rotational speeds of the shaft prevent or at least reduce.
  • the respective oil pocket can have a maximum depth of the pocket depth, which is offset in the circumferential direction and / or in the axial direction from a longitudinal center of a length of the oil pouch or offset from a broad center of the width of the oil pouch.
  • a design of the oil bag serves, in particular, for the purpose of utilizing or reinforcing said ramp effect and / or for allowing improved storage of the lubricant within the oil bag.
  • the respective oil bag can have any shape.
  • the respective oil pouch for example, square, in particular rectangular or trapezoidal, be formed.
  • the respective oil pocket can also have a curved shape, in particular elliptical or elliptical section-shaped or circular or circular section-shaped.
  • the bearing body in particular the at least one oil pocket, can be produced in any desired manner.
  • the bearing body can be produced, for example, by machining a planar workpiece.
  • the transverse grooves and / or the at least one oil pocket are, for example, milled, drilled, embossed and the like in the inner wall.
  • the transverse grooves and the at least one oil pocket may be incorporated into the inner wall by erosion, grinding, embossing, by an ECM method or by a corresponding mold, by a PEM method and the like.
  • the planar, the bearing body forming, workpiece is then transformed to form the receiving space of the bearing body.
  • the planar workpiece for example, rolled up to a tall cylinder and connected to the corresponding ends in a known manner, for example, welded, soldered and the like, are.
  • the inner wall of the bearing body may also have a plurality of such Oltaschen, with one or more Oltaschen each may be different or the same.
  • the bearing body is formed ringnutkar in preferred embodiments. This means in particular that the bearing body has on its inner wall no groove extending in the circumferential direction or no annular groove.
  • the ringnutschreib training of the bearing body has the particular advantage that during a standstill of the shaft, a flow of lubricant from the interior formed by the bearing body prevents or at least reduced. Likewise, the lubricant may be difficult during standstill in a respect of gravity accumulate at the bottom of the bearing body. Overall, therefore, there is a better, in particular more homogeneous, storage of the lubricant in the interior, in particular in the oil pockets and / or the transverse grooves, so that it is available faster and / or better distributed during the subsequent start of the shaft.
  • the bearing body also has at least one such annular groove, which is closed in the circumferential direction or segment-like or over a predetermined range.
  • FIG. 3-6 shows the longitudinal section through a bearing body, each different embodiment, Fig. 7-12 a cross section through a bearing body, each different embodiment.
  • a radial bearing 1 comprises a bearing body 2, which forms a Consraun 3, in which a shaft 4 can be arranged.
  • the bearing body 2 is configured as a hollow cylinder and has one of the shaft 4 and an inner wall 5 facing the receiving space 3.
  • the inner wall 5 are a plurality of, in the example shown four, formed in the direction indicated by an arrow 6 circumferential direction separate transverse grooves 7 which extend transversely to the circumferential direction 6.
  • each have a separating section 8 is arranged, wherein in at least one of these separating sections 8 at least one supply channel 9 is formed, which extends in the radial direction, wherein the radial direction with respect to the axial direction 10 of the shaft 4 and . of the bearing body 2 is given and accordingly perpendicular to the axial direction 10.
  • the supply channels 9 and the transverse grooves 7 are arranged uniformly in the circumferential direction, that is, at a distance of approximately 90 °, distributed.
  • the radial bearing 1 is configured for example as a rotatable radial bearing 1, so that the radial bearing 1, in particular the receiving space 3, in an associated and indicated by a dashed line housing 18, for example, a bearing housing 18, is rotatably arranged.
  • the radial bearing 1, in particular the bearing body 2 rotate in the circumferential direction 6 in or counterclockwise.
  • the shaft 4 is formed smaller than the receiving space 3 of the bearing body 2, so that the shaft 4 in the receiving space 3 along the inner wall 5 can slide.
  • the interior 3 by means of the supply channels 9, which pass through the bearing body 2, with a lubricant 1 1, in particular lubricating oil 1 1 or short oil 1 1 supplied, the when sliding the shaft 4 along the inner wall 5 between the shaft 4 and the inner wall 5 is arranged to reduce the wear of the radial bearing 1.
  • Fig. 2 shows a longitudinal section through the bearing body 2 along the designated in Fig. 1 with AA level. Accordingly, the respective transverse groove 7 runs along the axial direction 10 and has a transverse groove width 12 running along the circumferential direction 6. According to the invention, at least one oil pocket 13 spaced apart from the supply channel 9 formed in this separating section 8 is formed in at least one of the separating sections 8, the embodiment shown in FIG. 2 having two such oil pockets 13 in one of the separating sections 8 shown.
  • the respective oil pocket 13 is formed offset from the associated supply channel 9, wherein the oil pockets 13 shown are spaced in a direction of rotation 14 of the shaft 4 in the receiving space 3 of the bearing body 2 along the circumferential direction 6 from the associated supply channel 9.
  • oil pockets 13 are additionally offset along the axial direction 10 of the associated supply channel 9, so that the oil pockets 13 have a total of the same axial distance and an equal distance in the circumferential direction to the associated supply channel 9.
  • the oil pockets 13 are also arranged on the adjacent transverse groove 7, so that they are open to this transverse groove 7.
  • FIG. 3 is shown in the cross section shown in Fig. 2 for different embodiments of the radial bearing 1 and the bearing body 2.
  • the oil pockets 13 shown in Fig. 3 are curved in shape, while the oil pockets 13 shown in Fig. 4 are triangular shaped.
  • the oil pockets 13 shown in Fig. 5 are trapezoidal, while the oil pockets 13 shown in Fig. 6 have a rectangular or square shape.
  • FIGS. 7-12 a section running along the circumferential direction 6 is shown by such a transverse groove 7, wherein FIGS. 7-12 each show a different embodiment.
  • the oil bag 13 directly adjoins and is open to the adjacent transverse groove 7, while a pocket depth 17 along the radial direction along the circumferential direction 6 shown has a different course.
  • the course of the pocket depth 17 of the oil pocket 13 in FIG. 7 is continuously linear, with the pocket depth 17 of the oil pocket 13 decreasing towards the right-hand side or the associated supply channel 9 in the illustration shown.
  • the progression of the pocket depth 17 of the oil pocket 13 shown in FIG. 8 corresponds to that of a circle segment with the radius R.
  • Oil pockets 13 can also be seen in FIGS. 9 and 10, in which the course of the pocket depth 17 is continuous and curved, the course the pocket depth 17 in Fig. 10 is elliptical segment-like.
  • FIGS. 11 and 12 each show a discontinuous course of the pocket depth 17 in the circumferential direction 6, these examples showing a pocket depth 17 which is stepped. While the pocket depth shown in FIG. 11 and stepped 17 has angular steps, the steps of the pocket depth 17 shown in FIG. 12 are curved or round.
  • the pocket depth 17 of the respective oil pocket 13 can also have such a course along the axial direction 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

La présente invention concerne un palier radial (1) pourvu d'un corps (2) de palier qui présente un espace de réception (3) pour un arbre (4) à disposer dans le corps (2) de palier et le corps (2) de palier présente une paroi intérieure (5) qui est orientée vers l'espace de réception (3) et dans laquelle sont formées des rainures transversales (7) s'étendant dans la direction axiale (10) et séparées l'une de l'autre par des sections de séparation (8) dans la direction périphérique (6), un canal d'alimentation (9) étant formé dans au moins une telle section de séparation (8). Pour réduire l'usure du palier radial (1) ou encore pour allonger la durée de vie du palier radial (1), au moins une poche à huile (13) espacée du canal d'alimentation (9) y afférent est formée dans au moins une des sections de séparation (8).
EP13715223.7A 2012-04-12 2013-04-10 Palier radial Withdrawn EP2836730A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012205950A DE102012205950A1 (de) 2012-04-12 2012-04-12 Radiallager
PCT/EP2013/057468 WO2013153102A1 (fr) 2012-04-12 2013-04-10 Palier radial

Publications (1)

Publication Number Publication Date
EP2836730A1 true EP2836730A1 (fr) 2015-02-18

Family

ID=48083182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13715223.7A Withdrawn EP2836730A1 (fr) 2012-04-12 2013-04-10 Palier radial

Country Status (5)

Country Link
US (1) US9279453B2 (fr)
EP (1) EP2836730A1 (fr)
CN (1) CN104169596B (fr)
DE (1) DE102012205950A1 (fr)
WO (1) WO2013153102A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016515684A (ja) * 2014-03-10 2016-05-30 ワウケシャ ベアリングズ コーポレーションWaukesha Bearings Corporation カウンタシャフト
EP2960446A1 (fr) * 2014-06-24 2015-12-30 Aktiebolaget SKF Système mécanique formant un suiveur de came ou un culbuteur
FR3028903B1 (fr) * 2014-11-20 2017-05-05 Snecma Palier lisse auto-centrant
WO2017010450A1 (fr) * 2015-07-16 2017-01-19 株式会社Ihi Palier multilobe et compresseur à piston
PL3176450T3 (pl) * 2015-12-03 2019-01-31 Flender Graffenstaden S A S Łożysko hydrostatyczne z funkcją hydrodynamiczną
NL2018947B1 (en) 2017-05-19 2018-11-28 Univ Delft Tech Bearing device
US10557498B1 (en) * 2018-10-12 2020-02-11 Borgwarner Inc. Full-floating bearing and turbocharger including the same
JP7243848B2 (ja) * 2019-10-18 2023-03-22 株式会社Ihi 多円弧軸受、および、過給機
CN111495999B (zh) * 2020-05-12 2024-08-16 合肥波林新材料股份有限公司 轴承套储油穴的加工装置及加工方法
CN113446307A (zh) * 2021-06-18 2021-09-28 东方电气集团东方汽轮机有限公司 下瓦开部分周向槽的径向滑动轴承

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US5480234A (en) * 1994-08-15 1996-01-02 Ingersoll-Rand Company Journal bearing

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JPS52113445A (en) 1976-03-19 1977-09-22 Daido Metal Co Ltd Bearing metal
US4427309A (en) * 1980-03-24 1984-01-24 The Garrett Corporation Turbocharger shaft bearing
FR2718389B1 (fr) * 1994-04-12 1996-05-15 Granja Essieu d'entraînement et de réglage en hauteur des roues motrices d'une machine autotractée à paliers démontables et machine équipée de cet essieu.
US6095690A (en) * 1996-01-30 2000-08-01 Glyco-Metall-Werke Glyco B.V. & Co. Kg Sliding bearing element with lubricating oil pockets
DE19953576C2 (de) * 1999-11-08 2003-06-26 Bosch Gmbh Robert Lagerbuchse
JP3585420B2 (ja) * 2000-04-20 2004-11-04 株式会社椿本チエイン チェーン用巻き加工品及びその製造方法
JP4161651B2 (ja) * 2001-09-26 2008-10-08 株式会社ジェイテクト 流体軸受
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DE102008000853A1 (de) 2008-03-27 2009-10-01 Bosch Mahle Turbo Systems Gmbh & Co. Kg Radiallager mit Ölnut
DE102009048460A1 (de) * 2009-10-07 2011-05-05 Siemens Aktiengesellschaft Gleitlager mit einer optimierten Rillenstruktur und Verfahren zur Herstellung
KR101747965B1 (ko) * 2009-12-22 2017-06-15 두산인프라코어 주식회사 슬라이딩 베어링 및 슬라이딩 베어링 조립체

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Title
See also references of WO2013153102A1 *

Also Published As

Publication number Publication date
WO2013153102A1 (fr) 2013-10-17
CN104169596B (zh) 2017-03-08
DE102012205950A1 (de) 2013-10-17
US20150078690A1 (en) 2015-03-19
CN104169596A (zh) 2014-11-26
US9279453B2 (en) 2016-03-08

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