DK2264325T3 - Segment af et bur til et rulleleje - Google Patents

Segment af et bur til et rulleleje Download PDF

Info

Publication number
DK2264325T3
DK2264325T3 DK10180657.8T DK10180657T DK2264325T3 DK 2264325 T3 DK2264325 T3 DK 2264325T3 DK 10180657 T DK10180657 T DK 10180657T DK 2264325 T3 DK2264325 T3 DK 2264325T3
Authority
DK
Denmark
Prior art keywords
cage
segment
roller bearing
roller
bearing
Prior art date
Application number
DK10180657.8T
Other languages
English (en)
Inventor
Matthias Gessendorfer
GüNTER NEDER
Original Assignee
Skf Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32010374&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK2264325(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Skf Ab filed Critical Skf Ab
Application granted granted Critical
Publication of DK2264325T3 publication Critical patent/DK2264325T3/da

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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/51—Cages for rollers or needles formed of unconnected members
    • F16C33/513—Cages for rollers or needles formed of unconnected members formed of arcuate segments for carrying one or more rollers
    • 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
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
    • 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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/20—Thermal properties
    • F16C2202/22—Coefficient of expansion
    • 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
    • F16C2208/36—Polyarylene ether ketones [PAEK], e.g. PEK, PEEK
    • 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
    • F16C2208/52—Polyphenylene sulphide [PPS]
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/46—Gap sizes or clearances
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
DK10180657.8T 2002-10-08 2003-09-12 Segment af et bur til et rulleleje DK2264325T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10246825.7A DE10246825B4 (de) 2002-10-08 2002-10-08 Käfig für ein Wälzlager
EP03020732.8A EP1408248B1 (de) 2002-10-08 2003-09-12 Käfig für ein Wälzlager

Publications (1)

Publication Number Publication Date
DK2264325T3 true DK2264325T3 (da) 2019-09-16

Family

ID=32010374

Family Applications (1)

Application Number Title Priority Date Filing Date
DK10180657.8T DK2264325T3 (da) 2002-10-08 2003-09-12 Segment af et bur til et rulleleje

Country Status (4)

Country Link
EP (2) EP1408248B1 (da)
DE (1) DE10246825B4 (da)
DK (1) DK2264325T3 (da)
ES (1) ES2744387T3 (da)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005009980B3 (de) * 2005-03-04 2006-06-14 Aktiebolaget Skf Wälzlager
WO2007026851A1 (ja) * 2005-09-01 2007-03-08 Ntn Corporation ころ軸受
DE102005054082B4 (de) * 2005-11-12 2015-04-02 Schaeffler Technologies AG & Co. KG Käfig für ein Wälzlager
EP1961983B1 (en) * 2005-12-16 2012-03-07 NTN Corporation Roller bearing, main shaft support structure for wind-driven generator, intermediate element, and retainer segment
DK1998059T3 (da) 2005-12-21 2014-09-22 Ntn Toyo Bearing Co Ltd Rulleleje, holdedelssegment og understøtningstruktur til en hovedaksel i en vinddrevet generator
JP4342512B2 (ja) * 2005-12-21 2009-10-14 Ｎｔｎ株式会社 転がり軸受、保持器セグメントおよび風力発電機の主軸支持構造
CN101400911B (zh) 2006-03-10 2010-10-13 Ntn株式会社 滚子轴承、保持架节、衬垫及风力发电机的主轴支承结构
JP4573791B2 (ja) * 2006-03-29 2010-11-04 Ｎｔｎ株式会社 ころ軸受、および風力発電機の主軸支持構造
DE102006022951A1 (de) * 2006-05-17 2007-11-22 Schaeffler Kg Käfigsegment für einen Käfig eines Wälzlagers
DK2060806T3 (da) 2006-09-08 2014-04-28 Ntn Toyo Bearing Co Ltd Rulleleje og hovedaksel-understøttelsesstruktur til et vindkraftværk
DE102007044901B4 (de) * 2007-09-19 2016-02-25 Ab Skf Zylinderrollenlagerkäfig und Rollenlagerung
DE102007048655A1 (de) * 2007-10-10 2008-02-07 Schaeffler Kg Käfigsegment eines Kunststoffkäfigs sowie Wälzlager mit dem Kunststoffkäfig
JP5131466B2 (ja) * 2008-03-28 2013-01-30 Ｎｔｎ株式会社 風力発電機の主軸支持用ころ軸受および風力発電機の主軸支持構造
JP2010048342A (ja) * 2008-08-21 2010-03-04 Ntn Corp 大型ころ軸受、風力発電機の主軸支持構造およびトンネル掘削機の回転軸支持構造
JP5457004B2 (ja) * 2008-09-30 2014-04-02 Ｎｔｎ株式会社 風力発電機の主軸支持用ころ軸受の保持器セグメント間のすき間調整方法
JP2009052746A (ja) * 2008-10-01 2009-03-12 Ntn Corp 転がり軸受、保持器セグメントおよび風力発電機の主軸支持構造
DE102008062913A1 (de) 2008-12-24 2010-07-01 Schaeffler Technologies Gmbh & Co. Kg Segmentkäfig
DE202008017091U1 (de) 2008-12-24 2009-03-12 Schaeffler Kg Segmentkäfig
DE102009014779A1 (de) 2009-03-25 2010-09-30 Schaeffler Technologies Gmbh & Co. Kg Wälzlagerkäfig
DE102009014923C5 (de) * 2009-03-25 2015-07-23 Ab Skf Zweireihiges Kegelrollenlager, insbesondere zur Lagerung einer Rotorwelle einer Windkraftanlage
DE102009014922A1 (de) 2009-03-25 2010-09-30 Ab Skf Fettgeschmiertes zweireihiges Wälzlager und Lagersystem mit einem derartigen Wälzlager und einer Schmiervorrichtung
DE102009015827B4 (de) 2009-04-01 2023-11-02 Ab Skf Lageranordnung zur drehbaren Lagerung eines Maschinenteils
DE102009034012B4 (de) 2009-07-21 2011-09-29 Aktiebolaget Skf Verfahren und Vorrichtung zum axialen Sichern eines Maschinenelements
DE102009037420A1 (de) 2009-08-13 2011-02-17 Schaeffler Technologies Gmbh & Co. Kg Käfigsegment für einen Kunststoffkäfig eines Wälzlagers und Wälzlager mit einem solchen Käfigsegment
DE102009037421A1 (de) 2009-08-13 2011-02-17 Schaeffler Technologies Gmbh & Co. Kg Käfigsegment für einen Kunststoffkäfig eines Wälzlagers und Wälzlager mit einem solchen Käfigsegment
DE102009037422A1 (de) 2009-08-13 2011-02-17 Schaeffler Technologies Gmbh & Co. Kg Käfigsegment für einen Kunststoffkäfig eines Wälzlagers und Wälzlager mit einem solchen Käfigsegment
DE102009039435A1 (de) 2009-08-31 2011-03-03 Aktiebolaget Skf Verfahren und Vorrichtung zum axialen Sichern eines Maschinenelements
CN102575712B (zh) 2009-09-11 2016-03-02 蒂姆肯公司 用于滚动元件轴承的卡合式保持架桥接件
JP4818424B2 (ja) * 2009-11-17 2011-11-16 Ｎｔｎ株式会社 風力発電機の主軸支持構造
DE102009056260A1 (de) 2009-11-28 2011-06-01 Schaeffler Technologies Gmbh & Co. Kg Käfigsegment für einen Kunststoffkäfig eines Wälzlagers und Wälzlager mit einem solchen Käfigsegment
SK500272010A3 (sk) * 2010-06-26 2012-01-04 Psl, A. S. Bearing with plastic segment cage
EP2649333B1 (de) * 2010-12-07 2018-05-02 Aktiebolaget SKF Käfigsegment eines kegelrollenlagers und kegelrollenlager
DE102010056059A1 (de) 2010-12-23 2012-06-28 Schaeffler Technologies Gmbh & Co. Kg Wälzlagerkäfig und Wälzlager
CN102562812B (zh) * 2010-12-29 2014-07-30 上海联合滚动轴承有限公司 大型风电双列圆锥滚子轴承上的保持架
CN103089817A (zh) * 2011-10-27 2013-05-08 洛阳双龙塑料制品有限公司 直驱式风力发电机组主轴轴承分段式保持架
DE102011085356A1 (de) 2011-10-28 2013-05-02 Schaeffler Technologies AG & Co. KG Lagersatz und Wälzlager
EP2610511A1 (en) 2011-12-28 2013-07-03 Siemens Aktiengesellschaft Cage and rolling element bearing
EP2610512A1 (en) 2011-12-28 2013-07-03 Siemens Aktiengesellschaft Rolling element bearing
EP2610508A1 (en) 2011-12-28 2013-07-03 Siemens Aktiengesellschaft Rolling element bearing
DE102012202522A1 (de) 2012-02-20 2013-08-22 Schaeffler Technologies AG & Co. KG Sensorlager
DE102012207529A1 (de) 2012-05-07 2013-11-07 Aktiebolaget Skf Käfigsegment eines Kegelrollenlagers und Kegelrollenlager
JP2013241959A (ja) 2012-05-18 2013-12-05 Jtekt Corp 転がり軸受用の分割保持器
JP2013242018A (ja) 2012-05-22 2013-12-05 Jtekt Corp 転がり軸受用の分割保持器及びそれを用いた転がり軸受
JP2014020393A (ja) 2012-07-12 2014-02-03 Jtekt Corp 分割保持器用の治具及び転がり軸受の組み立て方法
JP2014139474A (ja) 2012-12-21 2014-07-31 Nsk Ltd 転がり軸受
EP3404274B1 (en) 2012-12-25 2020-04-08 NSK Ltd. Tapered roller bearing
EP2982878B1 (en) * 2013-04-04 2018-08-08 NSK Ltd. Resin cage for tapered roller bearing and tapered roller bearing including the resin cage
JP6055357B2 (ja) * 2013-04-04 2016-12-27 日本精工株式会社 円錐ころ軸受用樹脂製保持器
EP2984357B1 (de) 2013-04-11 2019-08-21 Aktiebolaget SKF Wälzlager mit in mehreren käfigsegmenten angeordneten wälzkörpern
DE102013218286A1 (de) 2013-09-12 2015-03-12 Schaeffler Technologies AG & Co. KG Käfig für ein Wälzlager und zugehöriges Wälzlager
FR3013087B1 (fr) * 2013-11-14 2016-05-06 Skf Aerospace France Roulement mecanique
JP2015102153A (ja) * 2013-11-25 2015-06-04 株式会社ジェイテクト 分割保持器及びころ軸受
DE102014203148A1 (de) 2014-02-21 2015-08-27 Schaeffler Technologies AG & Co. KG Käfigsegment
DE102014207931B4 (de) 2014-04-28 2019-06-19 Aktiebolaget Skf Wälzlager mit Käfigsegmenten mit Dämpfern
USD771166S1 (en) 2014-06-19 2016-11-08 Nsk Ltd. Tapered roller bearing cage
CN104154122B (zh) * 2014-08-08 2016-08-17 浙江天马轴承有限公司 一种圆柱滚子轴承的保持架
DE102014220649A1 (de) * 2014-10-13 2016-04-14 Schaeffler Technologies AG & Co. KG Käfigmodul und Rollenwälzlager mit einem aus diesen Käfigmodulen aufgebauten Käfig
CN104565023A (zh) * 2014-12-30 2015-04-29 瓦房店轴承集团有限责任公司 大兆瓦滚动体自引导保持架双列圆锥滚子轴承
DE102015200381A1 (de) 2015-01-14 2016-07-14 Schaeffler Technologies AG & Co. KG Käfigsegment eines Wälzlagers
DE102015205256A1 (de) 2015-03-24 2016-09-29 Schaeffler Technologies AG & Co. KG Käfig für ein Wälzlager und Verfahren zur Einstellung eines Endspiels eines Käfigs in einem Wälzlager
DE102015206533A1 (de) 2015-04-13 2016-10-13 Schaeffler Technologies AG & Co. KG Käfigsegment eines Käfigs eines Wälzlagers und Käfig eines Wälzlagers
CN104912920B (zh) * 2015-05-31 2017-05-31 德清恒富机械有限公司 单列滚子轴承
DE102015219277A1 (de) 2015-10-06 2017-04-06 Schaeffler Technologies AG & Co. KG Käfigsegment eines Wälzlagers
DE102016206072B4 (de) 2016-04-12 2018-02-22 Schaeffler Technologies AG & Co. KG Wälzlagerkäfig
DE102016207034A1 (de) 2016-04-26 2017-10-26 Schaeffler Technologies AG & Co. KG Käfigsegment eines Zylinderrollenlagers
DE102016219892A1 (de) 2016-10-12 2018-04-12 Schaeffler Technologies AG & Co. KG Käfigsegment eines Wälzlagers
CN108361281B (zh) * 2017-01-26 2021-01-01 斯凯孚公司 保持架分段、分段式保持架和轴承
DE102018105242B3 (de) * 2018-03-07 2019-06-13 Sumitomo (Shi) Cyclo Drive Germany Gmbh Radial-schrägrollenlager

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8420133U1 (de) * 1984-10-31 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Segmentkäfig für Wälzlager, insbesondere für Zylinderrollenlager
DE7914789U1 (de) * 1979-08-23 Kugelfischer Georg Schaefer & Co, 8720 Schweinfurt Wälzlager, vorzugsweise für große Zylinderrollenlager
DE7432281U (de) * 1975-01-16 Duerkoppwerke Gmbh Gliederkäfig für Axial-Rollenlager
DE840175C (de) * 1943-07-06 1952-05-29 Ver Kugellagerfabriken Ag Kaefig fuer Ringlager
DE1026577B (de) * 1956-06-06 1958-03-20 Skf Kugellagerfabriken Gmbh Kaefig fuer Radialwaelzlager
NL235328A (da) 1958-01-22 1900-01-01
DE1866122U (de) * 1962-11-29 1963-01-24 Rothe Erde Eisenwerk Kunststoffkaefig fuer waelzlager.
FR2224015A1 (da) * 1973-03-27 1974-10-25 Rks
DE3113911C2 (de) * 1981-04-07 1984-08-16 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Segmentkäfig
DE3115780C2 (de) * 1981-04-18 1984-02-09 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Segmentkäfig für Wälzlager
DE3120265C2 (de) * 1981-05-21 1983-05-19 FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt Segmentkäfig für ein Kreuzrollenlager
DE3245332C2 (de) * 1982-12-08 1985-06-27 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Segmentkäfig für Rollenlager
DE3509190A1 (de) * 1985-03-14 1986-09-18 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Segmentkaefig fuer rollenlager
DE8607236U1 (de) * 1986-03-15 1986-05-07 SKF GmbH, 8720 Schweinfurt Segmentkäfig
JPH0648180Y2 (ja) * 1989-04-07 1994-12-12 光洋精工株式会社 冠形保持器
JPH053644A (ja) 1991-06-27 1993-01-08 Fuji Electric Co Ltd 防滴カバーを備える立形全閉外扇形回転電機
JPH0519652U (ja) * 1991-06-28 1993-03-12 エヌテイエヌ株式会社 二つ割れ保持器付き針状コロ軸受
DE20005228U1 (de) 1999-08-12 2000-07-06 Skf Gmbh Käfig für ein Kegelrollenlager

Also Published As

Publication number Publication date
DE10246825A1 (de) 2004-04-22
EP2264325A1 (de) 2010-12-22
DE10246825B4 (de) 2019-02-14
EP1408248B1 (de) 2014-08-20
EP2264325B1 (de) 2019-06-12
EP1408248A3 (de) 2006-04-19
EP2264325B2 (de) 2023-10-25
EP1408248A2 (de) 2004-04-14
ES2744387T3 (es) 2020-02-24

Similar Documents

Publication Publication Date Title
DK2264325T3 (da) Segment af et bur til et rulleleje
DE60235932D1 (de) Rollenlagerkäfig
DE602005018061D1 (de) Verjüngtes Rollenlager
DE60300450D1 (de) Ölfilmgedämftes Wälzlager
DE602004018868D1 (de) Rollenlager und Schmiermethode dafür
DE60321432D1 (de) Zwischenwirbelkäfig
DE602004010963D1 (de) Axialwälzlager
ITTO20030054A1 (it) Dispositivo a cuscinetto
DE60122272D1 (de) Rollenlagerkäfig
DK1830850T3 (da) Quinolin-derivater til behandling af latent tuberkulose
DE60300288D1 (de) Abgedichtetes ölgedämpftes Wälzlager
DE60331019D1 (de) Zylinderrollenlager
DE602005007678D1 (de) Linearwälzlager und Wälzkörperkette dafür
DE60211613D1 (de) Rollenlagerkäfig
DE60215108D1 (de) Zweireihiger Kegelrollenlagerapparat
DE60320345D1 (de) Kegelrollenlager
FR2841123B1 (fr) Cage intervertebrale perfectionnee
DE60205667D1 (de) Kontaktlager
FR2835179B1 (fr) Cage intervertebrale
DE602005023819D1 (de) Kegelrollenlager
DE602005003691D1 (de) Kegelrollenlager
DE502004002603D1 (de) Zylinderrollenlager
DE50311903D1 (de) Wälzlagerkäfig
DE60219986D1 (de) Kegelrollenlager
DE60312579D1 (de) Aerostatisches Lager