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WO2015078461A1 - Palier à roulement planétaire - Google Patents

Palier à roulement planétaire Download PDF

Info

Publication number
WO2015078461A1
WO2015078461A1 PCT/DE2014/200612 DE2014200612W WO2015078461A1 WO 2015078461 A1 WO2015078461 A1 WO 2015078461A1 DE 2014200612 W DE2014200612 W DE 2014200612W WO 2015078461 A1 WO2015078461 A1 WO 2015078461A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer ring
lubricant supply
inner ring
supply channel
groove
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/DE2014/200612
Other languages
German (de)
English (en)
Inventor
Thomas Stahl
Ulrike Weisskopf
Andreas Staudigel
Sascha Moser
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 WO2015078461A1 publication Critical patent/WO2015078461A1/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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/34—Rollers; Needles
    • F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
    • F16C33/363—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces with grooves in the bearing-surfaces
    • 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
    • F16C19/36—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 with a single row of 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6607—Retaining the grease in or near the bearing
    • F16C33/6614—Retaining the grease in or near the bearing in recesses or cavities provided in retainers, races or rolling elements
    • 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
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease
    • 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
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/664—Retaining the liquid in or near the bearing
    • F16C33/6651—Retaining the liquid in or near the bearing in recesses or cavities provided in retainers, races or rolling elements
    • 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
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • 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
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/6677—Details of supply of the liquid to the bearing, e.g. passages or nozzles from radial inside, e.g. via a passage through the shaft and/or inner ring

Definitions

  • the invention relates to a planetary roller bearing, comprising an inner peripheral side at least partially grooved profile outer ring, an ospecializas profession at least partially groove-like profiled inner ring and a number of arranged in a formed between the outer ring and the inner ring WälzArchitectabilityraum, on the outside at least partially groove-like profiled rolling elements.
  • Such Planetensky which are sometimes referred to as a roller bearing, are known per se and serve to accommodate axial and possibly additional radial forces.
  • An essential feature of corresponding planetary roller bearings is the engagement of a profiling, which is formed at least partially on the outer side of the rolling element, into profiled portions of the outer ring or inner ring, at least in sections, on the inner peripheral side or outer peripheral side. It is customary that corresponding planetary roller bearings are provided with cages, which cages serve the leadership or storage of the rolling elements.
  • the problem with such planetary roller bearings may be their lubrication, ie the introduction of a certain amount of lubricant in the WälzSystemfactraum formed between the outer ring and the inner ring.
  • INS special is a relubrication, which is regularly required due to a made due to the high stress during operation degradation of the lubricant, difficult or cumbersome. This is due, in particular, to the fact that due to the largely closed design of corresponding planetary roller bearings due to corresponding cages for guiding or supporting the rolling elements, an axial introduction of lubricant into the rolling body receiving space is (only) difficult.
  • the invention has for its object to provide an easy to lubricate or easy to be lubricated planetary roller bearing.
  • a planetary roller bearing of the aforementioned type which according to the invention is characterized in that in the outer ring and / or the inner ring at least one Schmierstoffzu 1500kanal is formed for supplying lubricant into the WälzSystemageraum.
  • the planetary roller bearing according to the invention which can also be referred to as a roller-roller bearing, usually comprises an outer ring, an inner ring and a number of rolling elements rolling in a rolling element receiving space formed between the outer ring and the inner ring.
  • the outer ring is at least partially profiled on the inner peripheral side, ie at least partially profiled
  • the inner ring is at least partially profiled on the outer peripheral side, ie at least partially provided with a groove-like profiling
  • the rolling elements are on the outside, ie in particular in the area of their Wälz Schemee - or Wälz inhabit, profiled at least in sections, ie at least partially provided with a groove-like profiling.
  • the groove-like profiling of the rolling elements typically engages in the groove-like profiling of the outer ring and the inner ring.
  • the planetary roller bearing according to the invention is now provided on the outer ring and / or on the inner ring with at least one lubricant feed channel for supplying lubricant, ie for example lubricating grease and / or lubricating oil, into the rolling body receiving space.
  • the outer ring and / or the inner ring has at least one lubricant feed channel in the sense of an inner channel-like structure or is penetrated by at least one corresponding lubricant feed channel, via which a supply of lubricant into the WälzSystemabilityraum for the purpose of lubrication or relubrication of Planetenxxlzlagers is possible ,
  • the lubricant supply channel generally extends from an outside of the outer ring that does not directly bound the Wälzèveabilityraum, d. H. in particular the outer diameter or outer circumference or an axial edge of the outer ring, up to the WälzSystemfactraum directly limiting inner diameter or inner circumference of the outer ring. Accordingly, if an inner ring is provided with a corresponding lubricant supply channel, the lubricant supply channel generally extends from an outer side of the inner ring which does not directly delimit the Wälz Eisennah- meraum, d. H.
  • the lubrication or relubrication of the planetary roller bearing is therefore, in particular in the case in which the planetary roller bearing with corresponding cages for guiding or supporting the rolling elements, d. H. so-called rolling bearing cages, is provided, which largely complete the planetary roller bearing to the outside, greatly simplified.
  • the planetary roller bearing according to the invention associated outer ring or inner ring can of course have several corresponding SchmierstoffzuGermankanäle which uniformly or non-uniformly axially, radially or arranged circumferentially distributed over the outer ring or inner ring.
  • groove-like profiling generally refers to any type of regular or irregular surface profiling of the inner diameter or inner circumference of the outer ring, the outer diameter or outer circumference of the inner ring and the outer sides, ie in particular the Wälz Societye - or Wälz vom, the rolling elements.
  • the respective surface profilings are typically matched to one another such that engagement of the rolling body-side surface profiling in the outer or inner ring-side surface profilings is possible.
  • Under a groove-like profiling fall, for example, thread or tooth-like surface profiling.
  • the lubricant supply channel may be a bore passing radially through the outer ring and / or the inner ring.
  • the at least one lubricant supply channel can therefore extend radially through the outer ring and / or inner ring.
  • the Schmierstoffzu Switzerlandkanal extends centrally relative to the axial dimensions of the outer ring and / or the inner ring through the outer ring or the inner ring.
  • the at least one, radially extending through the outer ring and / or the inner ring Schmierstoffzu technologicalkanal is therefore axially considered in a central or centric position, ie formed in a central or central region of the outer ring and / or the inner ring.
  • a central or centric lubrication or relubrication of the planetary roller bearing is possible, which z. B.
  • a corresponding groove is advantageous in view of a uniform distribution of the lubricant within the rolling body receiving space.
  • the provision of a corresponding groove is particularly advantageous from two perspectives.
  • the groove can be used as a distributor channel, in which lubricant to be introduced into the planetary roller bearing can be distributed circumferentially, before it reaches the rolling body receiving space via respective lubricant supply channels which are arranged distributed circumferentially and radially into the groove.
  • lubricant supply channels which are arranged distributed circumferentially and radially into the groove.
  • a corresponding groove does not necessarily have to be circumferentially formed circumferentially. Therefore, a plurality of grooves each extending over a fraction of a circumference may be provided circumferentially. Of course, viewed axially, a plurality of grooves may be provided side by side.
  • no groove-like profiling is provided in the area of the inner diameter or inner circumference of the outer ring into which the lubricant feed channel opens, and / or none in the area of the outer diameter or outer circumference of the inner ring into which the lubricant feed channel opens groove-like profiling is provided.
  • the respective region of the inner circumference of the outer ring or of the outer circumference of the inner ring into which the lubricant supply channel leads opens, facing the rolling body receiving space. cut not provided with an appropriate profiling.
  • a corresponding lubricant supply channel does not necessarily have to extend exclusively radially through the outer ring or inner ring. It is only essential that the Schmierstoffzu Georgianal extends between a corresponding WälzSystemaraum not immediately limiting outer side of the outer ring or inner ring and the WälzSystemaraum directly limiting inner diameter or inner circumference of the outer ring respectively the WälzSystemfactraum directly limiting outer diameter or outer circumference of the inner ring.
  • At least one lubricant supply channel may extend obliquely and thus inclined with respect to a central bearing (symmetry) axis through the outer ring or the inner ring.
  • a lubricant supply channel may extend obliquely with respect to an outer ring from the outer circumference or an axial edge thereof to the inner circumference of the outer ring.
  • a lubricant supply channel may extend obliquely extending from the inner circumference thereof or an axial edge up to the outer circumference of the inner ring. If a plurality of cross-section considered inclined SchmierstoffzuGermankanäle are provided, the inclination angle with respect to the central bearing (symmetry) axis may be the same or different.
  • At least one lubricant feed channel to have at least two differently aligned, overlapping lubricant feed channel sections, at least one first Schmierstoffzu GmbHkanalabsacrificing axially through the outer ring and / or inner ring and at least a second Schmierstoffzu finallykanalabimposinge radially through the outer ring and / or inner ring extends.
  • a lubricant supply channel may accordingly be subdivided into at least two differently oriented lubricant supply channel sections, which communicate with each other in such a way that a lubricant supply channel results which differs from a corresponding outside of the outer ring or inner ring which does not directly bound the roller body receiving space WälzSystemusraum immediately limiting inner circumference of the outer ring or outer circumference of the inner ring extends.
  • At least one circumferentially at least partially circumferential groove is formed at an axial edge of the outer ring into which the at least one first Schmierstoffzu technologicalkanalabrough axi al opens and / or formed on an axial edge of the inner ring at least one circumferentially at least partially circumferential groove is, in which the at least one first Schmierstoffzu semiconductorkanalabimposing opens axially.
  • Figures 1 - 4 each a schematic diagram of a planetary roller bearing according to an embodiment of the invention.
  • FIG. 5 shows an outer ring of a Planetenskylzlagers according to an embodiment of the invention. Detailed description of the drawing
  • FIGS. 1-4 each show a schematic diagram of a planetary roller bearing 1 according to an embodiment of the invention. It is in the figures 1 to 4 each show a cross section of a planetary roller bearing 1 sectional views. The central bearing (symmetry) axis is marked A in all figures.
  • the planetary rolling bearing 1 which can also be referred to as a grooved roller bearing, comprises an outer ring 2, an inner ring 3 and rolling elements 5 arranged in a rolling body receiving space 4 formed between the outer ring 2 and the inner ring 3, typically barrel-shaped or cylindrical.
  • the outer ring 2 is provided with an inner circumferential groove-like profiling 6 and the inner ring 3 is provided with an outer peripheral groove-like profiling 7.
  • the rolling elements 5 are in the region of their outsides, d. H. in particular in the region of their lateral surfaces, as well provided with a groove-like profiling 8.
  • the rolling body-side groove-like profiling 8 engages in the outer or inner ring side groove-like profilings 6, 7 a.
  • the planetary roller bearing 1 is thus particularly adapted to absorb axial forces.
  • the planetary roller bearing 1 further comprises cages 9, of which in FIGS. 1-4 each only sections extending radially between radially opposite axial edges of the outer ring 2 and of the inner ring 3 are shown.
  • the cages 9 are provided in known per se with Wälzkör- per receiving areas (not shown), which serve the leadership or storage of the rolling elements 5.
  • the outer ring 2 with a radially completely passing through this Schmierstoffzu Switzerlandkanal 10 for supplying lubricant, such as.
  • lubricating oil provided in the WälzSystem biologyraum 4 (see, in this context, Figure 5).
  • On the Schmierstoffzu Switzerlandkanal 10 is a simple lubrication or relubrication of the planetary roller bearing 1 possible.
  • the lubricant supply channel 10 is arranged axially or centrally, viewed axially, so that a central or centric lubrication or regreasing of the planetary roller bearing 1, in particular with regard to a uniform distribution of a lubricant within the rolling body receiving space 4, is possible.
  • a circumferentially completely circumferential groove 1 1 is incorporated on the outer peripheral side, in which the Schmierstoffzu GmbHkanal 10 opens radially on the outer peripheral side.
  • the groove 11 serves in particular for a circumferential distribution of lubricants introduced into it.
  • the groove 1 1 can therefore be considered or used as an outer ring-side distribution channel for the distribution of lubricant.
  • a lubricant supply means (not shown), such as. B. a grease nipple of the planetary roller bearing 1 receiving housing part (not shown), adapted so that a preparation of a corresponding lubricant supply means for the purpose of lubrication or relubrication of the planetary roller bearing 1 is easily possible.
  • a corresponding lubricant supply channel 10 also extends radially through the inner ring 3 can extend.
  • Strichliert is also indicated that appropriate SchmierstoffzuGermankanäle 10 may be provided both on the outer ring 2 and on the inner ring 3.
  • Dashed line is further, merely exemplified for the outer ring 2, indicated that a plurality of corresponding lubricant supply channels 10 may be provided in axially adjacent arrangement.
  • a corresponding lubricant supply channel 10 can also be subdivided into a plurality of differently oriented or oriented lubricant supply channel sections 10a, 10b.
  • an axially extending through the outer ring 2 first Schmierstoffzu GmbHkanalabites 10a is provided, which merges into a perpendicular projecting therefrom, radially extending through the outer ring 2 second Schmierstoffzu technologicalkanalabites 10b.
  • the second Schmierstoffzu Switzerlandkanalabites 10b opens into the WälzSystem 4. Strichliert is indicated that the second Schmierstoffzu Switzerlandkanalabrough 10b also obliquely, d. H. angularly with respect to the bearing (symmetry) axis A of the planetary rolling bearing 1 inclined, can extend.
  • the first lubricant supply channel section 10a opens axially into a groove 11 that extends peripherally circumferentially in an axial edge of the outer ring 2.
  • the geometry of this groove 1 1 essentially corresponds to the groove 11 shown in FIGS. 1, 2, which is circumferentially circumferentially formed on the outer peripheral side.
  • a corresponding Schmierstoffzu semiconductorkanal 10 also obliquely, ie angularly with respect to the bearing (symmetry) axis A of the Planetenannalzlagers 1 inclined, can extend through the outer ring 2.
  • the lubricant supply channel 10 extending axially to the left in FIG.
  • the lubricant supply channel 10 is inclined at an angle ⁇ relative to the bearing (symmetry) axis A of the planetary roller bearing 1. In FIG. 4, looking axially further to the right or further in the center, lubricating The feed channel 10 extends from the outer periphery of the outer ring 2 to the inner periphery of the outer ring 2.
  • the Schmierstoffzu Swisskanal 10 is inclined at an angle ß> ⁇ with respect to the bearing (symmetry) axis A of the planetary roller bearing 1.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un palier à roulement planétaire (1) comprenant côté périphérie intérieure une bague extérieure (2) munie d'un profil au moins par endroits rainuré, et côté périphérie extérieure une bague intérieure (3) munie d'un profil au moins par endroits rainuré, ainsi qu'un certain nombre de corps de roulement (5) munis côté extérieur d'un profil au moins par endroits rainuré et agencés dans un espace de logement (4) de corps de roulement formé entre la bague extérieure (2) et la bague intérieure (3). Au moins un canal d'amenée (10) de lubrifiant est ménagé dans la bague extérieure (2) et/ou la bague intérieure (3) pour l'amenée de lubrifiant dans l'espace de logement (4) des corps de roulement.
PCT/DE2014/200612 2013-11-28 2014-10-31 Palier à roulement planétaire Ceased WO2015078461A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013224462.2 2013-11-28
DE102013224462.2A DE102013224462A1 (de) 2013-11-28 2013-11-28 Planetenwälzlager

Publications (1)

Publication Number Publication Date
WO2015078461A1 true WO2015078461A1 (fr) 2015-06-04

Family

ID=52013802

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200612 Ceased WO2015078461A1 (fr) 2013-11-28 2014-10-31 Palier à roulement planétaire

Country Status (2)

Country Link
DE (1) DE102013224462A1 (fr)
WO (1) WO2015078461A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012222531B4 (de) 2012-12-07 2022-10-20 Schaeffler Technologies AG & Co. KG Wälzlager mit profiliertem Wälzkörper
DE102013215962A1 (de) * 2013-08-13 2015-03-12 Schaeffler Technologies AG & Co. KG Rundtischlager
CN109838461B (zh) * 2019-03-20 2020-12-11 江苏持华轴承有限公司 一种自润滑的高速轴承

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734134A1 (de) * 1997-08-07 1999-02-11 Schaeffler Waelzlager Ohg Wälzlager für Drehbewegungen
DE10249762A1 (de) * 2002-10-25 2004-05-13 Ina-Schaeffler Kg Rollengewindetrieb
CN202867555U (zh) * 2012-11-01 2013-04-10 山东省宇捷轴承制造有限公司 一种单列调心滚子轴承

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734134A1 (de) * 1997-08-07 1999-02-11 Schaeffler Waelzlager Ohg Wälzlager für Drehbewegungen
DE10249762A1 (de) * 2002-10-25 2004-05-13 Ina-Schaeffler Kg Rollengewindetrieb
CN202867555U (zh) * 2012-11-01 2013-04-10 山东省宇捷轴承制造有限公司 一种单列调心滚子轴承

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