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WO2017041798A1 - Appui de jambe de force - Google Patents

Appui de jambe de force Download PDF

Info

Publication number
WO2017041798A1
WO2017041798A1 PCT/DE2016/200408 DE2016200408W WO2017041798A1 WO 2017041798 A1 WO2017041798 A1 WO 2017041798A1 DE 2016200408 W DE2016200408 W DE 2016200408W WO 2017041798 A1 WO2017041798 A1 WO 2017041798A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
guide ring
sliding
bearing
strut bearing
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.)
Ceased
Application number
PCT/DE2016/200408
Other languages
German (de)
English (en)
Inventor
Ralf Stautner
Andreas Wöllner
Rainer Lutz
Gerhard Meyer
Martin Kruppa
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG 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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of WO2017041798A1 publication Critical patent/WO2017041798A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/418—Bearings, e.g. ball or roller bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7101—Fiber-reinforced plastics [FRP]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7104—Thermoplastics
    • B60G2206/71043—Polyamid elastomer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8101—Shaping by casting
    • B60G2206/81012—Shaping by casting by injection moulding
    • 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
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/02—Plastics; Synthetic resins, e.g. rubbers comprising fillers, fibres
    • F16C2208/04—Glass fibres
    • 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
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/60—Polyamides [PA]
    • 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
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/66—Acetals, e.g. polyoxymethylene [POM]
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/10—Force connections, e.g. clamping
    • F16C2226/12—Force connections, e.g. clamping by press-fit, e.g. plug-in
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein

Definitions

  • the invention relates to a strut bearing, which is intended for use in Federbei NEN.
  • Strut bearings are part of the suspension for independent suspension.
  • the suspension supports a desired driving safety and driving comfort, as well as easy and precise steering of the wheels.
  • the suspension should keep road noise from the structure and be as light as possible.
  • the suspension strut bearing guides the shock absorber spring and forms a support surface for the shock absorber end stop.
  • the strut bearing absorbs the transmitted via the shock absorber spring and the shock absorber radial and axial forces and ensures that the shock absorber spring during steering and compression twisted friction and tension-free and thus operates without restoring moment.
  • Strut bearings are often part of the so-called McPherson struts.
  • the strut consists essentially of spring, shock absorbers and steering knuckle.
  • the strut bearing is provided with a cap which is fixed to the chassis-side strut tower, and with a guide ring on which the shock absorber spring is supported and guided by this.
  • the guide ring is rotatably mounted relative to the cap.
  • the camp allows when steering a rotation of the spring relative to the body, since during steering movements, the entire strut rotates.
  • a strut bearing is known, which has a cap and a relative to the cap rotatable guide ring. Between cap and guide ring a sliding bearing is arranged.
  • the sliding bearing is formed of a sliding element, which is arranged between the guide ring and the cap.
  • EP 2 317 167 A1 discloses a suspension strut bearing with a cap, a guide ring and a sliding bearing arranged therebetween.
  • the sliding bearing is inserted in a recess of the guide ring and forms a sliding surface for the cap.
  • a suspension strut bearing which has a cap and a guide ring.
  • the cap and the guide ring are made of metal.
  • a sliding bearing is arranged, which is formed of a synthetic resin.
  • Object of the present invention is to provide a suspension strut available, which is simple and inexpensive to produce.
  • a strut bearing with a cap and with respect to the cap about a rotation axis rotatably mounted guide ring and at least one seal, wherein between the cap and the guide ring a sliding bearing is arranged, wherein the Gleitla- ger a first sliding element and having a second sliding element.
  • Strut bearings have a cap and a captive connected by a snap connection with the cap guide ring. Between the cap and the guide ring a bearing is provided. This bearing is designed as a plain bearing.
  • the suspension strut bearings are attached to the chassis-side strut tower or the topmount.
  • a shock absorber spring is supported, which is guided by the guide ring.
  • the strut bearing according to the invention comprises a sliding bearing, which is constructed of two sliding elements, i. from a first sliding element and a second sliding element.
  • the first sliding element is the cap and the second sliding element is assigned to the guide ring.
  • the first sliding element is positively or non-positively connected to the cap and the second sliding element positively or non-positively connected to the guide ring. This ensures that rotation takes place only between the first sliding element and the second sliding element.
  • the first sliding element is sprayed on the cap and the second sliding element on the guide ring.
  • This component is designed as a two-component component.
  • the two-component component is produced, for example, by means of a two-component Injection molding method produced in which the two components are materially interconnected.
  • the cap and / or the guide ring is formed of a glass fiber reinforced plastic.
  • the glass fiber reinforced plastic ensures the necessary stability and rigidity of the cap or the guide ring.
  • a polyamide such as a PA66-GF, may be provided. It is also possible to use another synthetic material or metal which has the same properties.
  • the cap and / or the guide ring is formed of a non-reinforced material.
  • the sliding bearing is formed of an unreinforced plastic.
  • unreinforced example a polyoxymethylene or a polyethylene can be used.
  • the seal is designed as a labyrinth seal.
  • the labyrinth seal is designed as a Merfachlabynnthdichtung.
  • the cap is designed so that it has at least one protruding board. Analogous to the cap of the guide ring is designed such that it has a protruding board.
  • the cap and the guide ring can interlock by means of the formed ribs, whereby a labyrinth-like structure is formed. This prevents dirt from entering the suspension strut bearing, thereby reducing the radial mobility of the suspension strut. Speed of the suspension strut bearing is possible.
  • a combination of a labyrinth seal and a sliding seal is conceivable. In this case, the abrasive seal may be formed on the outer circumference or in the region of the labyrinth.
  • the sliding bearing forms part of the labyrinth seal.
  • the two sliding elements are designed such that they each have at least one protruding board.
  • the two sliding elements can engage in each other by means of the formed ribs, whereby a labyrinth-like structure is formed.
  • An embodiment of the invention provides that the sliding bearing has at least one recess on its sliding surface.
  • the at least one recess forms a grease or lubricant reservoir.
  • the recess (s) may be in the form of grooves, grooves, indentations or the like which extend completely or only partially over the circumference of the sliding bearing.
  • the guide ring may have a reinforcement.
  • This reinforcement can be designed as a sheet metal part which is injected, for example, into the guide ring or mounted directly on the abutment surface of the shock absorber spring. The advantage of this is that thereby the spring forces can be absorbed without damage from the guide ring. Furthermore, it is possible to mount or spray a sheet metal flange, for example, on the inner circumference of the guide ring, which can absorb resulting Bumpstop mechanism.
  • FIG. 1 shows a partial longitudinal section through an inventive strut bearing according to a first embodiment
  • FIG. 2 shows a partial longitudinal section through an inventive strut bearing according to a second embodiment
  • FIG 3 shows a partial longitudinal section through an inventive strut bearing according to a third embodiment, and a partial longitudinal section through an inventive strut bearing according to a fourth embodiment.
  • FIG. 1 shows a longitudinal section through an inventive strut bearing 1 according to a first embodiment.
  • the suspension strut bearing 1 has a cap 2, and a guide ring 3 which is rotatably mounted relative to the cap 2 about a rotation axis D.
  • the cap 2 is connected to the guide ring 3 by means of a snap connection 3a.
  • the cap 2 is attached to a not pictured top bearing of a chassis of a motor vehicle.
  • the guide ring 3 receives an axial end of a shock absorber spring, not shown. Spring forces of the shock absorber spring are passed over the guide ring 3 in the cap 2 and from there into the cathedral camp.
  • the guide ring 3 is mounted on the cap 2 via a sliding bearing 4 axially in the direction of the axis of rotation D.
  • the sliding bearing 4 serves to transmit forces acting along the axis of rotation D from the guide ring 3 to the cap 2.
  • the sliding bearing 4 has a first sliding element 5 and a second sliding element 6.
  • the first sliding member 5 is associated with the cap 2 and may be connected to this non-positively or positively.
  • the second sliding member 6 is associated with the guide ring 3 and may be connected to this non-positively or positively.
  • a labyrinth seal 7 is provided, which is preferably designed as a double labyrinth seal 8.
  • the cap 2 is provided on its outer circumference with the two coaxially arranged to the rotational axis D, annularly closed edges 9, 10, which limit a circumferential annular groove 1 1.
  • the two integrally formed on the cap 2 shelves 9, 10 extend with their free ends in the direction of the guide ring. 3
  • the guide ring 3 is arranged on the outer circumference with two coaxial with the axis of rotation D, annularly closed edges 12, 13 which define a circumferential annular groove 14.
  • the two integrally formed on the guide ring 3 shelves 12, 13 extend with their free ends in the direction of cap second
  • the ribs 9 and 10 are arranged offset radially relative to the ribs 12 and 13.
  • the board 13 engages in the annular groove 1 1 a.
  • the board 9 of the cap 2 engages in the annular groove 14 a.
  • FIGS. 2 to 4 show further embodiments of the invention. To simplify the description, like parts with the same reference numerals will be used. characterized in Chen, as in the preceding Figure 1. The description is limited only to the distinguishing features of FIG. 1.
  • the plain bearing 4 forms the labyrinth seal 7 or the double labyrinth seal 8 in FIG.
  • the cap 2 associated with the first slider 5 on the outer circumference with two coaxial with the axis of rotation D arranged, annularly closed rims 15, 16 is provided which limit a circumferential annular groove 18.
  • the two molded ribs 15, 16 extend with their free ends in the direction of the second sliding element 6.
  • the guide ring 3 associated second sliding member 6 is arranged on the outer circumference with two coaxial with the axis of rotation D, annularly closed edges 18, 19, which define a circumferential annular groove 20.
  • the two integrally formed ribs 18, 19 extend with their free ends in the direction of the first sliding element 5.
  • the ribs 15 and 16 are arranged radially offset from the ribs 18 and 19.
  • the board 15 engages in the annular groove 20 a.
  • the board 19 engages in the annular groove 17 a.
  • FIG. 3 shows a third exemplary embodiment of the suspension strut bearing 1 according to the invention.
  • the first sliding element 5 is sprayed onto the cap 2 and the second sliding element 6 is injected onto the guide ring 6.
  • the cap 2 and the guide ring 3 are preferably produced in a two-component injection molding process in which the cap 2 and the guide ring 3 are first pre-injection-molded and the first sliding element 5 and the second sliding element 6 are injection molded to form a material bond. Between the cap 2 and the first sliding member 5, an undercut 21 is provided.
  • the first sliding element 5 has "arms" 22 which engage in the corresponding recesses 23 of the cap 2.
  • the undercut 21 is already produced during the injection molding process.
  • an undercut 24 is provided between the guide ring 3 and the second sliding member 6.
  • the second sliding element 6 has “arms” 25 which engage in the corresponding recesses 26 of the guide ring 3.
  • the undercut 24 is already produced during the injection molding process.
  • a labyrinth seal 7 is provided, which is preferably designed as a double labyrinth seal 8. This labyrinth seal 7 corresponds to the labyrinth seal 8 already described in FIG.
  • FIG. 4 shows a fourth embodiment of the suspension strut bearing 1 according to the invention.
  • the first sliding element 5 is sprayed onto the cap 2 and the second sliding element 6 onto the guide ring 6 in this exemplary embodiment as well.
  • the first sliding element 5 and the second sliding element 6 form the labyrinth seal 7 or the double labyrinth seal 8.
  • the formation of the labyrinth seal 7 corresponds to that described in FIG. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

Appui de jambe de force comprenant un chapeau (2) et une bague de guidage montée rotative autour d'un axe de rotation (D) relativement au chapeau (2), et au moins une garniture d'étanchéité, un support à glissement (4) étant agencé entre le chapeau (2) et la bague de guidage (3), et présentant un premier (5) et un second élément de glissement (6).
PCT/DE2016/200408 2015-09-11 2016-08-31 Appui de jambe de force Ceased WO2017041798A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015217417.4 2015-09-11
DE102015217417 2015-09-11

Publications (1)

Publication Number Publication Date
WO2017041798A1 true WO2017041798A1 (fr) 2017-03-16

Family

ID=57003297

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2016/200408 Ceased WO2017041798A1 (fr) 2015-09-11 2016-08-31 Appui de jambe de force

Country Status (2)

Country Link
DE (1) DE102016216598A1 (fr)
WO (1) WO2017041798A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019116952A1 (fr) * 2017-12-12 2019-06-20 オイレス工業株式会社 Palier lisse et son procédé de fabrication
EP3726078A4 (fr) * 2017-12-12 2021-09-15 Oiles Corporation Palier lisse

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019138949A1 (fr) * 2018-01-10 2019-07-18 オイレス工業株式会社 Palier lisse
DE102019118700A1 (de) * 2019-07-10 2020-11-12 Schaeffler Technologies AG & Co. KG Federbeinlager

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873168A (en) * 1972-12-18 1975-03-25 Gen Electric Laminated composite article with improved bearing portion
US20070237439A1 (en) * 2002-10-03 2007-10-11 Oiles Corporation Sliding bearing
DE102008057590A1 (de) 2008-08-13 2010-02-18 Schaeffler Kg Federbeingleitlager
EP2317167A1 (fr) 2008-08-26 2011-05-04 Oiles Corporation Palier lisse de poussée constitué d une résine synthétique
DE102010015712A1 (de) 2010-04-21 2011-10-27 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager und Herstellungsverfahren für ein Bauteil eines Federbeinlagers
US20140001689A1 (en) * 2007-03-20 2014-01-02 Oiles Corporation Thrust sliding bearing and combination mechanism of the thrust sliding bearing and piston rod with coil spring
DE102013201965A1 (de) * 2013-02-07 2014-08-07 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager
WO2014119281A1 (fr) * 2013-01-29 2014-08-07 オイレス工業株式会社 Appui à glissière en résine synthétique
DE102013210313A1 (de) * 2013-06-04 2014-12-04 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873168A (en) * 1972-12-18 1975-03-25 Gen Electric Laminated composite article with improved bearing portion
US20070237439A1 (en) * 2002-10-03 2007-10-11 Oiles Corporation Sliding bearing
US20140001689A1 (en) * 2007-03-20 2014-01-02 Oiles Corporation Thrust sliding bearing and combination mechanism of the thrust sliding bearing and piston rod with coil spring
DE102008057590A1 (de) 2008-08-13 2010-02-18 Schaeffler Kg Federbeingleitlager
EP2317167A1 (fr) 2008-08-26 2011-05-04 Oiles Corporation Palier lisse de poussée constitué d une résine synthétique
DE102010015712A1 (de) 2010-04-21 2011-10-27 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager und Herstellungsverfahren für ein Bauteil eines Federbeinlagers
WO2014119281A1 (fr) * 2013-01-29 2014-08-07 オイレス工業株式会社 Appui à glissière en résine synthétique
EP2952762A1 (fr) * 2013-01-29 2015-12-09 Oiles Corporation Appui à glissière en résine synthétique
DE102013201965A1 (de) * 2013-02-07 2014-08-07 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager
DE102013210313A1 (de) * 2013-06-04 2014-12-04 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019116952A1 (fr) * 2017-12-12 2019-06-20 オイレス工業株式会社 Palier lisse et son procédé de fabrication
EP3726078A4 (fr) * 2017-12-12 2021-09-15 Oiles Corporation Palier lisse
US11181147B2 (en) 2017-12-12 2021-11-23 Oiles Corporation Sliding bearing

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