WO2008000249A1 - Cage de palier comprenant une pluralité de colliers de fixation - Google Patents

Cage de palier comprenant une pluralité de colliers de fixation Download PDF

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Publication number
WO2008000249A1
WO2008000249A1 PCT/DE2007/001160 DE2007001160W WO2008000249A1 WO 2008000249 A1 WO2008000249 A1 WO 2008000249A1 DE 2007001160 W DE2007001160 W DE 2007001160W WO 2008000249 A1 WO2008000249 A1 WO 2008000249A1
Authority
WO
WIPO (PCT)
Prior art keywords
tabs
bearing cage
bearing
elements
rolling elements
Prior art date
Application number
PCT/DE2007/001160
Other languages
German (de)
English (en)
Inventor
Arbogast Grunau
Rudolf Zeidlhack
Holger Kaup
Manfred Jansen
Peter Find
Udo Markowski
Norbert Wieser
Edgar Karbach
Gerd Benninghoven
Original Assignee
Schaeffler 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 Kg filed Critical Schaeffler Kg
Publication of WO2008000249A1 publication Critical patent/WO2008000249A1/fr

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
    • F16C33/50—Cages for rollers or needles formed of interconnected members, e.g. chains
    • 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
    • F16C19/38—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 two or more rows of rollers
    • F16C19/383—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 two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—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 two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—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 two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • 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
    • 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
    • F16C33/52—Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers
    • F16C33/523—Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers with pins extending into holes or bores on the axis of the rollers
    • F16C33/526—Cages for rollers or needles with no part entering between, or touching, the bearing surfaces of the rollers with pins extending into holes or bores on the axis of the rollers extending through the rollers and joining two lateral cage parts
    • 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

Definitions

  • the present invention relates to a bearing cage and in particular a cage for roller bearings.
  • the invention will be described with reference to a bearing with pierced rolling elements, but it should be noted that the invention can also find application in other types of bearings.
  • bolt cages are often used.
  • pin cages are usually used pierced rolling elements, but there are also other versions known.
  • These bolts are held together by side windows. These side windows are usually formed in one piece and the attachment of the bolts to the cages can be done by different methods. Especially in these side windows are very expensive to manufacture parts, thus bringing high costs in the production of the entire bearing with it. From DE 179 908 a roller chain is known. The individual rollers or rolling elements are held together by balls with the roles partially overlap. However, beyond that no further support of the individual roles takes place against each other.
  • the present invention is therefore based on the object to produce bearing cages for roller bearings in a simple manner and also to simplify the installation of such cages.
  • the cost of the rolling bearing production should be reduced by the present invention.
  • a higher dimensional stability of the bearing cage produced should be achieved or maintained.
  • Another object is to make a cage from a small number of different standard items.
  • the bearing cage according to the invention for accommodating a plurality of rolling elements has a multiplicity of connecting elements which extend essentially in a longitudinal direction of the rolling elements, wherein these connecting elements each have a first end section and a second end section.
  • a multiplicity of first flaps are provided, wherein each end section is connected via at least one tab to at least one end section of an adjacent connecting element.
  • at least one end portion is non-rotatable with a connected first tab.
  • the connecting elements serve to guide the rolling elements to be arranged in the cage. About the end portions of a connection of the individual fasteners is made on the tabs. Compared with the fastening ring known from the prior art, the tabs offer the advantage that they are much easier to manufacture.
  • the tabs which are arranged on the one end section can also have a different shape and in particular a different length than the tabs which are arranged on a second end section. This may be the case in particular with tapered roller bearings.
  • the cage of the invention can be easily and from a few different items - in the simplest case two or three or five different items - produce.
  • all end portions are rotatably connected to all first tabs. In this way, the stability of the entire cage can be increased.
  • each tab connects exactly two connecting elements or their end sections with each other. A tab connecting only two fasteners can be made without a bend. Also, the distance between the respective connection points between the connecting elements on the one hand and the tab on the other hand must be dimensioned less accurate than in the case in which a plurality of connecting elements are connected to each other via a tab.
  • the connecting elements are bolts that can be performed by bores of the rolling elements.
  • the cage guide thus takes place via the bolts which are pushed through the rolling bodies. It is also possible to store the bolt, for example, with bearings such as sleeve bearings against the rollers.
  • the bearing cage on the Borden or the running surface of the inner or the outer ring are supported.
  • sliding elements can also be attached to the tabs, which support the cage on a board or one of the bearing surfaces.
  • the non-rotatable connection between the connecting elements and the tabs is selected from a group of compounds which contain press-fit connections and in particular elastic or elastic plastic press-fits.
  • other types of connection such as welded joints, rivet joints, screw or clamping sleeves, dowel pins or clamping rings or combinations of the compounds mentioned can be used.
  • the individual tabs have end faces and the end faces of at least two adjacent tabs preferably contact each other flatly.
  • these can be designed so that they touch flat at the ends and thus ensure a nearly form-fitting circular shape of the cage.
  • the contacting end portions of the tabs are each formed opposite each other, for example, form matching concave or convex curvatures.
  • a plurality of second tabs are provided, which are in communication with the connecting elements and are arranged between the first tabs. This means that in the assembled state, these second tabs are provided between the first tabs and the rolling elements.
  • These second tabs are referred to below as inner tabs.
  • the second tabs are not rotatably connected to the respective connecting elements or bolts. However, it would also be possible to perform the connection between the connecting elements and the second tabs rotationally fixed in order to achieve in this way an overall rigid shape of the cage.
  • each connecting element is connected via a first tab to a first further connecting element and via a second tab to a second further connecting element in connection.
  • the individual connecting elements are each connected in a chain-like manner via the first and second tabs, with a second tab in each case following a first tab in a circumferential direction of the cage and then again followed by a first tab.
  • two adjacent connecting elements in each case via first tabs or via second tabs in connection.
  • the second tabs also preferably connect exactly two connecting elements with each other.
  • the entire cage assembly consists of a number of outer (first) tabs and inner (second) tabs, which are each pressed alternately on the connecting elements, that is, the bolt elements.
  • the present invention is further directed to a rolling bearing with a bearing cage according to at least one of the preceding claims and a plurality of rolling elements.
  • the rolling elements each have holes through which the connecting elements are passed.
  • connecting elements which connect the individual tabs and are made longer, for example, to the center of the next rolling element, where they can abut the end face with the next tab.
  • connecting elements or bolts on the outside with a bearing in order to reduce a friction between the rolling elements and the connecting elements.
  • storage means are provided to support the rolling elements against the connecting elements, in particular but not exclusively sleeve bearing.
  • the cage width that is, the extension of the cage in the longitudinal direction of the rolling elements and thus the game between the rollers and the cage can be adjusted. It is possible during assembly to press the individual tabs to a certain Fügefel on the bolts to achieve the game. Also, the bolts can be carried out offset, that is, each having end portions with a smaller cross-section. It is also possible to tune the bolt length so that the tabs are pressed so far that the bolt ends and the tab outer side is flush.
  • the mounting of the bearing cage can be done before the assembly of the entire camp. In this case, the roller set with the tabs is completely assembled. It is also possible to carry out the assembly of the bearing cage after the introduction of the roller set between the inner ring and the outer ring. In this case, it would also be possible to equip the inner ring or the outer ring with ribs such as two Borden. In this case, all bolt-tab connections would have to be made at least but those connections that are located at an end portion or at one end side of the connecting elements, subsequently. So It would be possible to first attach fasteners with the one-sided tabs and add the tabs on the other side in a further process step.
  • Fig. 1 is a schematic representation of a rolling bearing
  • FIG. 2 shows a partial side view of a bearing cage according to the invention in a first embodiment
  • Fig. 3 is a plan view of the bearing cage of Figure 2;
  • FIG. 4 shows a partial side view of a bearing cage according to the invention in a second embodiment
  • Fig. 5 is a plan view of the bearing cage of Figure 4.
  • FIG. 6 shows a partial side view of a bearing cage according to the invention in a third embodiment
  • Fig. 7 is a plan view of the bearing cage of Fig. 6;
  • Fig. 8 is a partial side view of a bearing cage according to the invention in a fourth embodiment
  • FIG. 9 is a plan view of the bearing cage of Figure 8.
  • Figure 1 shows a schematic representation of a bearing according to the prior art.
  • the bearing in this embodiment is a double-row bearing, that is to say a bearing in which two rows of rolling elements 4 are arranged.
  • This bearing has an inner ring or two inner ring halves 23, and an outer ring 22.
  • the individual rolling elements 4 each have slightly strange peripheral surfaces 25.
  • the rolling elements each have holes 28 through which connecting elements 6 are pushed to guide the rolling elements.
  • the connecting elements are also referred to below as bolts.
  • the reference numeral 10 refers to a bearing cage in which the individual bolts or their ends are secured.
  • the bearing cage has in addition to the bolt 6 shelves 29 and 30, which are designed circular.
  • FIG. 2 shows a side view of a bearing cage according to the invention in a first embodiment.
  • this bearing cage has a plurality of first lugs 8.
  • These first tabs 8 each have two openings 13 for receiving end portions 7a of the individual bolts. These openings 13 are arranged so that the rolling elements 4, through which the bolts 6 are pushed, do not touch each other.
  • the first tabs 8 each have curved end sections. However, these end portions could also be curved or rectilinear in some other way.
  • FIG. 3 shows a plan view of the embodiment shown in FIG.
  • the longitudinal directions of the rolling elements 4 are drawn in parallel.
  • tapered rollers are used so that, strictly speaking, the bearing cage shown also has a curved course (not shown).
  • the upper tabs 8 are actually slightly longer than the respective lower first tabs 8.
  • the bolts 6 and their end portions 7a and 7b are each rotatably arranged in the first tabs 8.
  • the reference character L denotes the longitudinal direction of the rolling elements.
  • the reference numeral 9 refers to second connection tabs which are mutually arranged to the first tabs 8.
  • the connection between the second tabs 9 and the bolts 6 or the end sections 7a and 7b is designed to be rotationally movable. Therefore, the two first tabs 8 shown in FIG. 3 can be moved relative to the second tabs 9.
  • the respective upper flaps 8 and 9 are slightly longer than the lower flaps. More precisely, the respective upper holes 8, 9 whose respective holes 13 are slightly further apart from each other than in the respective lower flaps 8, 9.
  • the respective lower and upper flaps can also be carried out in the case of a tapered roller bearing substantially similar.
  • the reference numeral d refers to the thickness of the first and second tabs and is between 2 mm and 8 mm and preferably between 3 mm and 5 mm. The widths of both straps are smaller than any existing widths.
  • the reference numeral 14 refers to openings in the second tabs 9, through which the respective end portions 7a, 7b are passed.
  • Figure 3 shows an embodiment in which the first and second tabs are each arranged symmetrically, that is, at the respective pin ends 7a and 7b are from inside to outside, the tabs 8 and 9 each substantially symmetrical to each other, in which case not in the figure shown curvature is also not taken into account.
  • the respective first and second tabs 8, 9 asymmetrically in order, for example, initially to provide a second tab 9 and then a first tab 8 from the inside outwards on the two left-side bolts 6.
  • connection between the second tabs 9 and the bolt 6 and the end portions 7a and 7b rotatably perform.
  • FIG. 4 shows a side view of a further embodiment of the bearing cage according to the invention.
  • first tabs 8 are rotatably connected to the bolt 6 and the bolt ends 7a, 7b.
  • the individual tabs 8 each have curved end portions 12a, 12b. These end portions are complementary to each other.
  • the end portion 12a is designed as an outwardly curved curvature, which engages in a correspondingly inwardly curved curvature of the end portion 12b.
  • cage segments 15, 16 each consist of two rolling elements 4.
  • the individual tabs 8 can each be made similar, but here they each have different left and right side end portions 12a, 12b.
  • the individual holes or openings 13 in the tabs 8 are each preferably arranged along the mid perpendicular M, that is, the individual rolling elements are substantially at the same height.
  • the individual tabs are designed such that touch the tabs at their ends flat and in this way a form-fitting circular shape of the cage is achieved.
  • FIGS. 6 and 7 show a further embodiment of a bearing cage according to the invention or of a section thereof.
  • the essential difference here lies in the configuration of the respective end sections 12a and 12b of the tabs 8.
  • both the end section 12a and the end section 12b are respectively arched outward. In this way, a certain freedom of movement of the tab shown on the left opposite the flap 8 shown on the right and thus the segments 15, 16 against each other.
  • FIGS. 8 and 9 show a further embodiment of a bearing cage according to the invention.
  • first tabs 8 and second tabs 9 are provided.
  • a rotationally fixed connection between the bolt ends 7a and 7b on the one hand and respective first lugs 8 is likewise provided.
  • the connection between the bolt ends and the first tabs not rotatably perform.
  • the end portions of the first tabs are respectively disposed below a central portion of the second tabs with respect to the rolling elements 4.
  • the two left-side rolling elements 4 and their bolts are held together by the first tabs 8 and the two right-hand bolts through the respective right-side tabs 8.
  • the second tabs 9 are in contrast offset, that is, in the in Figure 9
  • the two inner rolling elements or their bolts are held together by the second lugs 9.
  • the end portions 12a, 12b of the individual tabs are each made straight. However, it could also be provided here curved or curved ends of the tabs.
  • the two tabs 8 are at least slightly angled against each other. Accordingly, the tab 9 preferably has a certain curvature or angling in order to arrive at a total of a circular shape of the entire cage. Conversely, however, the first tabs could also have a curvature or inclination to achieve the overall circular shape. It would also be possible for both the first tabs 8 and the second tabs 9 to have a predetermined curvature. In this case could on one Bending at the individual transitions of the tabs 8, 9 are omitted, since the total curvature can also be achieved by a curvature of the individual tabs 8, 9.
  • the bolts can be stored, for example, with bearings and preferably with sleeve bearings in the roles. It is also, as mentioned above, possible to support the entire cage on the rims of the inner or outer rings or the tread.
  • the sheets can also have additional sliding elements (not shown) which support the entire cage on a shelf or one of the bearing surfaces.
  • additional securing elements such as snap rings can be provided in order to secure the bolts 6 or their end sections 7a, 7b with respect to the first lugs.

Landscapes

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

Abstract

L'invention concerne une cage de palier prévue pour recevoir une pluralité de corps de roulement (4) comprenant une pluralité d'éléments de liaison (6) qui s'étendent principalement dans une direction longitudinale (L) des corps de roulement, ces éléments de liaison (6) présentant respectivement une première section d'extrémité (7a) et une deuxième section d'extrémité (7b) avec une pluralité de premiers colliers (8), chaque section d'extrémité (7a, 7b) étant reliée par au moins un collier (8) à au moins une section d'extrémité d'un élément de liaison (6) adjacent. Selon l'invention, au moins une section d'extrémité (7a, 7b) est reliée en étant bloquée en rotation avec un premier collier (8).
PCT/DE2007/001160 2006-06-30 2007-06-28 Cage de palier comprenant une pluralité de colliers de fixation WO2008000249A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610030314 DE102006030314A1 (de) 2006-06-30 2006-06-30 Lagerkäfig mit einer Vielzahl von Verbindungslaschen
DE102006030314.8 2006-06-30

Publications (1)

Publication Number Publication Date
WO2008000249A1 true WO2008000249A1 (fr) 2008-01-03

Family

ID=38596690

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001160 WO2008000249A1 (fr) 2006-06-30 2007-06-28 Cage de palier comprenant une pluralité de colliers de fixation

Country Status (2)

Country Link
DE (1) DE102006030314A1 (fr)
WO (1) WO2008000249A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015172416A (ja) * 2014-03-12 2015-10-01 株式会社ジェイテクト ころ軸受
CN113757250A (zh) * 2021-08-06 2021-12-07 上海工程技术大学 具有曲面滚道自适应约束滚动体的可动机构保持架及轴承

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8814438B2 (en) 2012-05-28 2014-08-26 Jtekt Corporation Rolling bearing cage, and rolling bearing including the same
JP2014066303A (ja) * 2012-09-26 2014-04-17 Jtekt Corp ピン型保持器、及びこれを備えた転がり軸受
JP2015152162A (ja) * 2014-02-19 2015-08-24 株式会社ジェイテクト ころ軸受用保持器
DE102015201601A1 (de) 2015-01-30 2016-08-04 Schaeffler Technologies AG & Co. KG Bolzenkäfig
DE102015202690A1 (de) 2015-02-13 2016-08-18 Schaeffler Technologies AG & Co. KG Bolzenkäfig für Wälzlager

Citations (5)

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Publication number Priority date Publication date Assignee Title
BE516304A (fr) *
GB251567A (en) * 1924-12-29 1926-04-29 Walter Ashby Mitchell Improvements in and relating to chain roller bearings and the like
FR995524A (fr) * 1945-03-20 1951-12-04 Roulements à rouleaux élastiques et leurs applications
EP0138360A2 (fr) * 1983-10-14 1985-04-24 Ichiro Katayama Ensemble de palier pour dispositif coulissant
DE10015406C1 (de) * 2000-03-28 2001-05-10 Hackewitz Friedrich W Von Selbsthaltender vollrolliger Käfig

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DE103822C (fr) * 1900-01-01
DE105074C (fr) * 1900-01-01
DE110476C (fr) *
AT87087B (de) * 1919-09-19 1922-01-25 Chain Roller Bearing Company L Rollenlager.
DE54860C (de) * 1900-01-01 J. BREYER in Ludwigshafen a. Rh Rollenlager mit endloser Rollenkette
DE179908C (fr) *
US682406A (en) * 1901-03-13 1901-09-10 Leo Ehrlich Roller side bearing.
CH47595A (fr) * 1909-04-20 1910-07-16 Samuel Kaye Coussinet à galets
GB137278A (en) * 1919-01-02 1920-06-10 Gnome Et Rhone Moteurs Improvements in roller bearings
GB249607A (en) * 1924-12-29 1926-03-29 Walter Ashby Mitchell Improvements in and relating to chain roller bearings
GB318382A (en) * 1928-08-27 1929-09-05 Sheppard John A new type or improved type of roller bearing for pit tubs, corves and the like
DE916917C (de) * 1951-09-18 1954-08-19 Heinrich Werz Rollenlager fuer Foerdergeraete u. dgl.
GB955802A (en) * 1960-06-11 1964-04-22 Birfield Eng Ltd Improvements in or relating to roller bearings
BE621455A (fr) * 1961-08-16

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE516304A (fr) *
GB251567A (en) * 1924-12-29 1926-04-29 Walter Ashby Mitchell Improvements in and relating to chain roller bearings and the like
FR995524A (fr) * 1945-03-20 1951-12-04 Roulements à rouleaux élastiques et leurs applications
EP0138360A2 (fr) * 1983-10-14 1985-04-24 Ichiro Katayama Ensemble de palier pour dispositif coulissant
DE10015406C1 (de) * 2000-03-28 2001-05-10 Hackewitz Friedrich W Von Selbsthaltender vollrolliger Käfig

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015172416A (ja) * 2014-03-12 2015-10-01 株式会社ジェイテクト ころ軸受
CN113757250A (zh) * 2021-08-06 2021-12-07 上海工程技术大学 具有曲面滚道自适应约束滚动体的可动机构保持架及轴承

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