WO2020088709A1 - Unité de palier à optimisation acoustique - Google Patents

Unité de palier à optimisation acoustique Download PDF

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Publication number
WO2020088709A1
WO2020088709A1 PCT/DE2019/100812 DE2019100812W WO2020088709A1 WO 2020088709 A1 WO2020088709 A1 WO 2020088709A1 DE 2019100812 W DE2019100812 W DE 2019100812W WO 2020088709 A1 WO2020088709 A1 WO 2020088709A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
bearing
swivel ring
swivel
bearing unit
Prior art date
Application number
PCT/DE2019/100812
Other languages
German (de)
English (en)
Inventor
Martin Kruppa
Original Assignee
Schaeffler Technologies AG & 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 & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to KR1020217007919A priority Critical patent/KR20210081327A/ko
Priority to CN201980059363.3A priority patent/CN112739921A/zh
Publication of WO2020088709A1 publication Critical patent/WO2020088709A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0409—Electric motor acting on the steering column
    • 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/084—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface sliding on a complementary spherical surface
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/02—Mechanical properties
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/50—Lubricating properties
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/50—Lubricating properties
    • F16C2202/54—Molybdenum disulfide
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • F16C2204/66—High carbon steel, i.e. carbon content above 0.8 wt%, e.g. through-hardenable steel
    • 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
    • F16C2226/50—Positive connections
    • F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
    • 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
    • F16C2326/20—Land vehicles
    • F16C2326/24—Steering systems, e.g. steering rods or columns

Definitions

  • the invention relates to a bearing unit for supporting a shaft, comprising a bearing with an inner ring and an outer ring, the inner ring and the outer ring being rotatable in relation to one another circumferentially, and wherein the outer ring has an outer, curved outer surface, the bearing having an axis of rotation and is supported with respect to at least one swivel ring, and wherein the bearing can be swiveled with respect to the swivel ring about at least one swivel axis oriented transversely to the axis of rotation, the swivel ring having at least one inner surface designed as a spherical cap which correlates with the outer, curved one
  • the outer surface of the outer ring is formed so that there is a contact area between these surfaces, the swivel ring, the inner ring and the outer ring being arranged coaxially to one another.
  • the worm shaft is usually supported in a fixed bearing and a floating bearing.
  • the fixed bearing is designed as a swivel bearing and can adjust the wear in the tooth mesh and the shaft tilt.
  • the swiveling function is provided by the use of a separate swivel ring with an inner sphere, which receives the spherical ball bearing outer ring.
  • An electrically powered power steering is an electric power steering system that only works when steering movements take place. In the case of an electromechanical drive, a program-controlled electric servomotor supports and superimposes the driver's steering movements on the mechanics of the steering, i.e. on the steering column or steering gear.
  • EPS Electric Power Steering
  • EPAS Electric Power Assisted Steering
  • Bearing designs for electrically assisted power steering systems are manufactured with high precision because the spherical cap should be as free of play as possible in order to to ensure low-noise function of the storage unit without envelope clacks.
  • the outer ring and the swivel ring form a pair of calottes that are manufactured with precisely defined tolerances and are paired in several tolerance groups.
  • the swivel ring has mounting windows for inserting and pivoting the spherical outer ring.
  • a bearing unit according to the prior art is known, for example, from published patent application DE 10 2007 044 618 A1.
  • This invention is directed to a bearing unit by means of which a worm spindle for a power steering system is pivotably mounted.
  • a pivotability of a bearing is ensured via two outer rings, which can be connected to one another for a changeable relative position by means of a connecting element in such a way that an outer surface of an outer bearing shell of the bearing is free of play but while ensuring a degree of freedom of pivoting about a pivot axis .
  • the invention relates to a bearing unit for supporting a shaft, comprising a bearing with an inner ring and an outer ring, the inner ring and the outer ring being rotatable in relation to one another circumferentially, and wherein the outer ring has an outer, curved outer surface, the bearing having an axis of rotation and is supported with respect to at least one swivel ring, and wherein the bearing can be swiveled with respect to the swivel ring about at least one swivel axis oriented transversely to the axis of rotation, the swivel ring having at least one inner surface designed as a spherical cap which correlates with the outer, curved one Shell surface of the outer ring is formed to form a contact area, wherein the swivel ring, the inner ring and the outer ring are arranged coaxially to one another.
  • the swivel ring has a recess in the circumferential direction, which extends over the entire
  • the swivel ring width is the width that the swivel ring has over the extension axis of the axis of rotation.
  • the recess extending over the entire swivel ring width is provided so that the bearing, preferably a rolling bearing, particularly preferably a ball bearing, can be easily mounted in the swivel ring, the mounted bearing unit having good acoustic properties.
  • the good acoustic properties are due in particular to the spring tension in the contact area between the spherical spherical inner surface of the swivel ring and the outer, curved outer surface of the outer bearing. Due to the constant voltage in the aforementioned contact area, noises caused by cover clacks are avoided.
  • the recess is particularly preferably produced by providing an indentation in the region of the future recess, which is further processed into the recess.
  • the swivel ring is in particular designed to be elastic so that the recess supports a resilient effect of the swivel ring.
  • the swivel ring is preferably designed to be rotationally symmetrical. It preferably has a spherical cap in its inner region.
  • the swivel ring consists of a hardening material, for example 100Cr6. This feature allows the swivel ring to be notched particularly well by means of laser beam cutting and therefore easy to manufacture.
  • the swivel ring can also be made from a non-hardening material, such as case hardening steel or sintered material. This makes the swivel ring particularly easy to saw to create a notch in the swivel ring. It is particularly preferably provided that the outer ring and the swivel ring are designed to overlap one another. Overlap can be understood in the same way as an interference fit. Because of the particularly elastic design of the swivel ring, in this preferred case the swivel ring acts like a spring that prestresses the spherical cap without play. This property can be used for play-free mounting of the shaft by fixing the swivel bearing in a non-positive or positive manner after mounting in the steering gear housing using a nut. The elastic pre-tension is retained after tightening the nut.
  • a non-hardening material such as case hardening steel or sintered material.
  • Swing ring on the outside in the circumferential direction has at least one elastic jacket element, in particular an O-ring.
  • the swivel ring equipped with, for example, elastic rings or elastic sheathing enables permanent elastic pre-tensioning after installation.
  • the elastic components also ensure noise isolation and vibration damping during operation.
  • the outer ring and / or the swivel ring can have a friction-reducing coating at least in the contact area. Coatings with a coefficient of friction of less than or equal to the coefficient of friction of molybdenum disulfide or manganese phosphate are deemed to be a friction-reducing coating. Molybdenum disulfide or manganese phosphate are particularly preferred coatings for the outer ring and / or the swivel ring.
  • a method for producing a bearing unit with at least one of the aforementioned features provides that the swivel ring has at least one notch in order to form the recess.
  • This notch is loaded or deformed in such a way that it breaks across the entire swivel ring width and subsequently forms the recess.
  • the swivel ring is then elastically expanded in such a way that the bearing to be assembled can be inserted. After the swivel ring and the bearing to be assembled have the corresponding mounting position, the widening of the swivel ring is released in such a way that the swivel ring encompasses the circumference of the bearing. The expansion therefore only takes place transitional. This shows the ease of assembly, with the outer ring and the swivel ring being easy to manufacture.
  • the notch for producing the bearing unit can originate from the fact that the notch is already present when a swivel ring green part is produced or that it is introduced by means of a laser beam.
  • a swivel ring made of a hardening material, preferably 100Cr6, is particularly suitable for this.
  • the notch is introduced by means of a separating production process, for example by means of sawing or cutting.
  • the cutting can preferably be done with a laser or water jet.
  • these manufacturing measures for the notch are particularly suitable for a swivel ring made of a non-hardening material.
  • the swivel ring then particularly preferably consists of a case hardening steel or sintered material.
  • the invention relates to a swivel ring with at least one of the aforementioned features for a bearing with at least one of the aforementioned features.
  • FIGS. 3 and 4 in a perspective view
  • 6 shows a bearing unit arranged in a power steering housing
  • the bearing unit 10 has a bearing 12 with an inner ring 14 and an outer ring 16.
  • the inner ring 14 and the outer ring 16 are circumferentially rotatable relative to one another about an axis of rotation R.
  • the bearing 12 is supported with respect to at least one swivel ring 20 and can be swiveled with respect to the swivel ring 20 by at least one swivel axis R oriented transversely to the axis of rotation R.
  • the swivel ring 20 has an inner surface 22 designed as a spherical cap, which is designed to correlate with an outer, curved outer surface 18 of the outer ring 16 to form a contact region 24.
  • the swivel ring 20, the inner ring 14 and the outer ring 16 are arranged coaxially to one another.
  • the swivel ring 20 has two diametrically opposed mounting windows 28, which are designed to be slot-like around the circumference of the swivel ring 20 and extend in particular up to half the swivel ring width into the swivel ring 20.
  • the swivel ring width is the width which the swivel ring 20 has over the extension axis of the rotation axis R.
  • the assembly windows 28 serve to insert and pivot the outer ring 16 with the outer, curved outer surface 18.
  • An outer ring 16 with such an outer, curved outer surface 18 is also called a spherical outer ring.
  • FIG 3 shows a side view of a bearing unit 10 according to a first embodiment of the invention.
  • the bearing unit 10 has a bearing 12 with an inner ring 14 and an outer ring 16.
  • the inner ring 14 and the outer ring 16 are circumferentially rotatable relative to one another about an axis of rotation R.
  • the bearing 12 is supported with respect to at least one swivel ring 20 and can be swiveled with respect to the swivel ring 20 about at least one swivel axis S oriented transversely to the axis of rotation R.
  • the bearing unit 10 in a vertical sectional view through the sectional plane B-B according to FIG. 3.
  • the swivel ring 20 has an inner surface 22 designed as a spherical cap, which is designed to correlate with an outer, curved outer surface 18 of the outer ring 16, so that there is a contact area 24 between these surfaces.
  • the swivel ring 20, the inner ring 14 and the outer ring 16 are arranged coaxially with respect to one another with respect to the axis of rotation R.
  • the swivel ring 20 has a recess 26 in the circumferential direction U which extends over the entire swivel ring width.
  • the swivel ring width is the width which the swivel ring 20 has over the extension axis of the axis of rotation R.
  • an elastic prestress between the outer ring 16 and the in particular elastic swivel ring 20, which continues after assembly, is formed by the outer ring 16 and the swivel ring 20 being designed to overlap one another. This means that there is an interference fit.
  • the bearing unit 10 can in particular be provided for mounting a worm shaft. This applies in particular to a system with a power steering housing 30 according to Electric Power As- sisted steering (EPAS).
  • the pivot bearing 20 is fixed in a non-positive or positive manner via a threaded nut 32.
  • the fixation takes place in particular with a spring-elastic pretension generated via the swivel ring 20 by means of the cover. This fixing method enables an advantageously firm and at the same time releasable connection of the bearing unit 10 in the power steering housing 30.
  • the mounting of the bearing unit 10 in the power steering housing 30 can be selected by means of the threaded nut 32 both in the first and in the second embodiment, as well as in a non-positive or positive manner in accordance with embodiments not shown.
  • the bearing unit 10 has a bearing 12 with an inner ring 14 and an outer ring 16.
  • the inner ring 14 and the outer ring 16 are circumferentially rotatable relative to one another about an axis of rotation R.
  • the bearing 12 is supported with respect to at least one swivel ring 20 and can be swiveled with respect to the swivel ring 20 about at least one swivel axis S oriented transversely to the axis of rotation R.
  • the swivel ring 20 has an inner surface 22 designed as a spherical cap, which is designed to correlate with an outer, curved outer surface 18 of the outer ring 16, so that there is a contact area 24 between these surfaces.
  • the swivel ring 20, the inner ring 14 and the outer ring 16 are arranged coaxially with respect to one another with respect to the axis of rotation R.
  • the swivel ring 20 has a recess 26 in the circumferential direction U which extends over the entire swivel ring width.
  • the swivel ring width is the width which the swivel ring 20 has over the extension axis of the axis of rotation R.
  • 8, 9 and 10 show that two elastic jacket elements 36, which are in particular O-rings, are provided which are spaced apart from one another over the swivel ring width.
  • the bearing unit 10 shows how the bearing unit 10 according to the second embodiment is arranged in a power steering housing 30.
  • the bearing unit 10 can in particular be provided for mounting a worm shaft. This applies in particular to a system with a power steering housing 30 according to Electric Power Assisted Steering (EPAS).
  • EPAS Electric Power Assisted Steering
  • the swivel bearing 20 is fixed in the power steering housing 30 via a snap ring 34.
  • the fixation takes place in particular with a spring-elastic pretension generated via the swivel ring 20 by means of the elastic jacket elements 36.
  • This fixing method enables an advantageously inexpensive and at the same time detachable connection of the bearing unit 10 in the power steering housing 30.
  • the mounting of the bearing unit 10 in the power steering housing 30 can be selected by means of the snap ring 34 both in the first and in the second embodiment, as well as in accordance with embodiments not shown, in particular in a non-positive or positive manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Rolling Contact Bearings (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

L'invention concerne une unité de palier (10) permettant de supporter un arbre, présentant un palier (12) comportant une bague intérieure (14) et une bague extérieure (16), la bague intérieure (14) et la bague extérieure (16) pouvant être déplacées en rotation l'une par rapport à l'autre sur la périphérie, et la bague extérieure présentant une face latérale (18) extérieure arquée, le palier (12) présentant un axe de rotation (R) et étant supporté par rapport à au moins une bague pivotante (20), et le palier (12) pouvant pivoter par rapport à la bague pivotante (20) autour d'au moins un axe de pivotement (S) orienté transversalement par rapport à l'axe de rotation (R), la bague pivotante (20) présentant au moins une face intérieure (22) réalisée sous forme de calotte sphérique, laquelle face intérieure est réalisée en corrélation avec la face latérale (18) extérieure arquée de la bague extérieure (16) pour former une zone de contact (24), la bague pivotante (20), la bague intérieure (14) et la bague extérieure (16) étant disposées coaxialement l'une à l'autre, la bague pivotante (20) présentant un évidement (26) dans la direction périphérique, lequel évidement s'étend sur toute la largeur de la bague pivotante. De ce fait, on obtient une unité de palier (10) ayant de bonnes propriétés acoustiques, laquelle unité de palier est facile à fabriquer et à monter.
PCT/DE2019/100812 2018-10-30 2019-09-11 Unité de palier à optimisation acoustique WO2020088709A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020217007919A KR20210081327A (ko) 2018-10-30 2019-09-11 음향 최적화 베어링 유닛
CN201980059363.3A CN112739921A (zh) 2018-10-30 2019-09-11 声学优化的轴承单元

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018127029.1A DE102018127029A1 (de) 2018-10-30 2018-10-30 Akustikoptimierte Lagereinheit
DE102018127029.1 2018-10-30

Publications (1)

Publication Number Publication Date
WO2020088709A1 true WO2020088709A1 (fr) 2020-05-07

Family

ID=68051572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2019/100812 WO2020088709A1 (fr) 2018-10-30 2019-09-11 Unité de palier à optimisation acoustique

Country Status (4)

Country Link
KR (1) KR20210081327A (fr)
CN (1) CN112739921A (fr)
DE (1) DE102018127029A1 (fr)
WO (1) WO2020088709A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004803A (en) * 1958-12-03 1961-10-17 Marlin Rockwell Corp Pillow block
DE102004051002A1 (de) * 2004-10-20 2006-09-14 Schaeffler Kg Radiallagerung für eine Antriebswelle von Fahrzeugen
DE102007044618A1 (de) 2007-09-19 2009-04-02 Schaeffler Kg Lagereinheit für eine Servolenkung

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
DE2063266A1 (en) * 1969-12-22 1971-06-24 Deutsche Star Kugelhalter Gmbh, 8720 Schweinfurt Rapid production of tolerance rings from - coiled strip
JPS5854292Y2 (ja) * 1979-08-10 1983-12-10 日本精工株式会社 コラムブツシユ
JP4273703B2 (ja) * 2002-05-09 2009-06-03 オイレス工業株式会社 ブッシュ軸受
US7665747B2 (en) * 2006-10-13 2010-02-23 Gm Global Technology Operations, Inc. Steering gear assembly having rack bushing
CN201034117Y (zh) * 2007-03-12 2008-03-12 西北轴承股份有限公司 带有调心圈的圆柱滚子轴承
JP5303240B2 (ja) * 2008-10-22 2013-10-02 Ｎｔｎ株式会社 転がり軸受および回転軸支持構造
DE102010054828A1 (de) * 2010-12-16 2012-06-21 Thyssenkrupp Presta Ag Servolenkung mit Spindeltrieb
JP5799735B2 (ja) * 2011-10-13 2015-10-28 日本精工株式会社 ステアリング装置
JP2014105733A (ja) * 2012-11-26 2014-06-09 Jtekt Corp 転がり軸受
CN104832544A (zh) * 2015-05-18 2015-08-12 江苏联动轴承有限公司 汽车eps专用自润滑调心蜗杆组件轴承
DE102016211714B3 (de) * 2016-06-29 2017-09-07 Ford Global Technologies, Llc Getriebeeinheit für ein Kraftfahrzeug
DE102016211694B3 (de) * 2016-06-29 2017-10-05 Ford Global Technologies, Llc Getriebeeinheit für ein Kraftfahrzeug

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004803A (en) * 1958-12-03 1961-10-17 Marlin Rockwell Corp Pillow block
DE102004051002A1 (de) * 2004-10-20 2006-09-14 Schaeffler Kg Radiallagerung für eine Antriebswelle von Fahrzeugen
DE102007044618A1 (de) 2007-09-19 2009-04-02 Schaeffler Kg Lagereinheit für eine Servolenkung

Also Published As

Publication number Publication date
CN112739921A (zh) 2021-04-30
KR20210081327A (ko) 2021-07-01
DE102018127029A1 (de) 2020-04-30

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