WO1993009357A1 - Cage pour palier a roulement radial a roulement complet - Google Patents

Cage pour palier a roulement radial a roulement complet Download PDF

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Publication number
WO1993009357A1
WO1993009357A1 PCT/EP1992/002524 EP9202524W WO9309357A1 WO 1993009357 A1 WO1993009357 A1 WO 1993009357A1 EP 9202524 W EP9202524 W EP 9202524W WO 9309357 A1 WO9309357 A1 WO 9309357A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
webs
bearing cage
filler
rolling element
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/EP1992/002524
Other languages
German (de)
English (en)
Inventor
Herbert Zettner
Roland Sarrach
Norbert Radinger
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.)
INA Waelzlager Schaeffler OHG
Original Assignee
INA Waelzlager Schaeffler OHG
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 INA Waelzlager Schaeffler OHG filed Critical INA Waelzlager Schaeffler OHG
Publication of WO1993009357A1 publication Critical patent/WO1993009357A1/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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • F16C33/4635—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from plastic, e.g. injection moulded window cages
    • 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
    • F16C19/24—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 radial load mainly
    • F16C19/26—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 radial load mainly 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4611—Cages for rollers or needles with hybrid structure, i.e. with parts made of distinct materials
    • 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
    • F16C2240/70—Diameters; Radii
    • F16C2240/80—Pitch circle diameters [PCD]
    • F16C2240/82—Degree of filling, i.e. sum of diameters of rolling elements in relation to PCD
    • F16C2240/84—Degree of filling, i.e. sum of diameters of rolling elements in relation to PCD with full complement of balls or rollers, i.e. sum of clearances less than diameter of one rolling element

Definitions

  • the present invention relates to a roller bearing cage for fully rolling radial roller bearings, in which axially directed webs are fixedly connected to an end ring at at least one of their axial ends and limit roller body pockets, the webs being arranged exclusively in a space which is defined by rolling bodies tangent to one another. is limited on the one hand and by raceways of the rolling elements, and wherein the webs are arranged radially inside and / or outside a partial circle of the mutually tangent rolling elements such that the rolling elements are held captively in the rolling element pockets.
  • Such a roller bearing cage is known from FR-PS 2460416.
  • the rolling elements snap into rolling element pockets which are delimited by webs arranged inside and outside the pitch circle, the pitch circle known to intersect the axes of the rolling elements.
  • the rolling element ring thus formed can be easily transported and installed in the bearing point.
  • a rolling bearing cage is also known from this document, in which the webs are only arranged outside the pitch circle.
  • the cage equipped with the rolling elements is preassembled on a shaft, the rolling element pockets being limited by the webs and the peripheral surface of the shaft.
  • the diameters of the roller bodies must be in a certain relationship with tolerances to the inner or outer raceway diameter of the roller bodies.
  • the present invention is therefore based on the object of designing a roller bearing cage for Vollroll ge radial roller bearings so that the rolling elements are held captively in the rolling element cage for transport on the one hand, and that on the other hand can be adapted to different raceway geometries while the rolling element diameter of the rolling bearing cage remains the same that the rolling elements in the rolling bearing are spaced from the webs under all circumstances.
  • this object is achieved in that a rolling element end play measured as an angle between the first and the last rolling element tangent to one another is limited by inserting at least one filler piece firmly connected to the end ring such that this rolling body end play is smaller than a rolling body pocket play of the rolling bodies measured as an angle in each of the rolling element pockets delimited by the webs.
  • a rolling bearing cage of this type With a rolling bearing cage of this type, it is ensured that the rolling elements, after their installation in the rolling bearing location, come into contact with their cylindrical lateral surfaces only with adjacent rolling elements or with the filler piece.
  • the filler extends in the circumferential direction in such a way that the total end play of the rolling elements in the circumferential direction of the rolling element cage is smaller than the pocket clearance of the rolling elements in each of the rolling element pockets.
  • the inner raceway diameter of the rolling elements is increased in the case of a correspondingly adapted roller bearing cage, the extent of the filling piece in the circumferential direction is increased in such a way that the total play of all the rolling elements in the circumferential direction of the rolling bearing cage is smaller than the rolling element pocket play of the rolling elements in each of the rolling element pockets; this also ensures that the rolling elements are spaced from the webs.
  • roller bearings designed in this way are also used if, in addition to high radial loads, high speeds also occur. In this case, it can make sense to break this one filler into several fillers, which are evenly distributed over the circumference of the rolling element cage; In this way, a more favorable mass distribution on the roller bearing cage is achieved than is possible with a roller bearing cage with only one filler.
  • a particularly advantageous development of the invention according to claim 2 is that the webs and the filler pieces are integrally connected to the end rings with both axial ends: the end rings have different inner and outer diameters, while one of the ends of the webs has a radial constriction has, which lies within the inner and outer diameter of the end ring facing this end.
  • Such a rolling bearing cage equipped with rolling elements is pushed onto an inner ring which has a radially projecting rim at one axial end, the outer diameter of which is smaller than the inner diameter of the end ring facing this axial end.
  • the outer ring has, with respect to the inner ring, a rim which projects radially inwards and is formed at the opposite end and whose inner diameter is larger than the outer diameter of the end ring facing this axial end.
  • this rolling bearing cage For easy insertion of the rolling elements into the rolling element cage, it is proposed in claim 3 to manufacture this rolling bearing cage from plastic, the webs and the fillers being designed such that the rolling elements radially from the outside into the rolling element Pertaschen are insertable and snap into them.
  • Such roller bearing cages can be easily manufactured using the injection molding process.
  • a simple embodiment, which enables the rolling bodies to snap easily into the rolling body pockets, is proposed in claim 4, according to which the webs have a wedge-shaped profile in cross-section with a wedge tip, the wedge tips each facing two webs.
  • the rolling elements When the rolling elements are inserted radially into the rolling element pockets, the rolling elements come into contact with the webs and deform them elastically. After the rolling elements have snapped into the rolling element pockets, play of the rolling elements in the radial and circumferential directions is ensured due to the wedge-shaped design of the webs.
  • the filler in order to avoid complex web constructions of webs which are adjacent to the filler, it is proposed in claim 5 that the filler, as seen in cross-section, has cross-sectional expansions at its radial ends such that the rolling elements through these cross-sectional expansions and the webs adjacent to this filler the radial directions are kept captive.
  • cross-sectional expansions are designed in accordance with claim 6 such that the filler largely has a concave contour when viewed in cross-section. Filling pieces of this type can be easily produced in an injection molding process and adapted to the respective raceway geometries.
  • the webs and the filler (s) consist of a plastic that is more elastic than the end ring.
  • the snap-in of the rolling elements into the rolling element pockets can be optimized by a suitable choice of plastic without the cage losing its required rigidity.
  • FIG. 1 shows a cross section of a roller bearing cage according to the invention with three feet distributed around the circumference
  • FIG 3 shows a partial longitudinal section along the line III-III in Figure 1 through the webs of the Wälzkör ⁇ percage.
  • Figure 4 shows a cross section of a roller bearing cage according to the invention with only one filler
  • FIG. 5 shows an enlargement of the partial view V from FIG. 4.
  • a roller bearing cage according to the invention for full complement roller bearings has, in FIG. 1, a circular end ring 1 and axially extending webs 3 delimiting roller body pockets 2, one roller body 4 being arranged in each roller body pocket 2.
  • the axial ends of the webs 3 are integrally connected to the opposing end rings 1, only one end ring 1 being shown in this figure due to the sectional view.
  • the webs 3 are arranged radially on both sides of mutually tangent rolling elements 4 and are approximately wedge-shaped, the wedge tips 5 of the webs 3 being directed towards one another.
  • the clear opening of the rolling body pockets 2 in the circumferential direction is smaller than the diameter of the rolling bodies 4.
  • a rolling body 4 If a rolling body 4 is now inserted radially from the outside into the rolling body pocket 2, this first touches the wedge-shaped webs 3 with its peripheral surface and deforms it elastically and then snaps into the rolling body pocket 2 in the event of a further radial movement. In this position, the rolling element 4 has play in the circumferential and radial directions with respect to the webs 3.
  • the filler pieces 6 largely have a concave cross-sectional profile.
  • FIG. 2 shows the end rings 1 in a partial longitudinal section along the line II-II in FIG. 1 with a rolling element 4 arranged between these end rings 1.
  • the end rings 1 have different inside and outside diameters, in this embodiment the outside and inside diameter of one end ring is larger than the corresponding diameter of the other end ring. Depending on the application, it is of course possible that the end rings are identical.
  • Figure 3 shows the end rings 1 and the webs 3 after the section
  • a radial constriction 7 is formed on each of the axial ends of the webs 3 and lies within the inner and outer diameter of the end ring 1 facing this end. This constriction 7 prevents a radially projecting rim of a component, which forms a raceway for the rolling elements 4, from running against this axial end of the web 3.
  • FIG. 4 shows a roller bearing cage which is mounted in a roller bearing point and which, in terms of its basic structure, corresponds to the exemplary embodiment Figure 1 corresponds, but only a single filler is provided here.
  • the rolling elements 4 rest on the inner and outer raceways 8, 9; these rolling elements 4 are arranged here in such a way that they abut the filling piece 6 or touch one another with their peripheral surfaces, two adjacent rolling elements 4 not touching one another.
  • the rays delimiting the angle ⁇ intersect the axis of a rolling element 4 in the positions 4 a and the position 4 b shown in broken lines.
  • This rolling element 4 can only move between these two positions before it touches adjacent rolling elements 4.
  • the theoretical roller pocket play ß of a rolling element 4 in a rolling element pocket 2 is represented by the dashed positions 4 c and 4 d. In these positions, this roller body 4 touches the webs 3 of the roller bearing cage.
  • the rays delimiting the angle ⁇ intersect the axis of this rolling element 4 in positions 4 c and 4 d.
  • the rolling element end play ⁇ is smaller than the rolling element pocket play ⁇ , it is impossible that the rolling elements 4 can run against the webs 3; Before one of the rolling elements 4 can run against the webs 3, it touches the adjacent rolling elements 4. The movement of the rolling bearing cage therefore takes place exclusively via the rolling elements 4 abutting the filling piece 6, the filling piece 6 of course being firmly connected to the end rings 1 got to.
  • the definition of the rolling element end play a is given by the corresponding extension of the filler 6 in the circumferential direction.
  • the filler 6 is dimensioned such that the rolling element end play ⁇ becomes zero. In this case, however, the rolling elements would touch each other under pressure, so that an undesirable friction occurs for smooth rolling bearing support.
  • the rolling element pockets 2 are formed by webs 3 arranged inside and outside a partial circle delimited by the axes of the rolling elements. But there is more also the possibility to provide only webs inside or outside the pitch circle, in which case the rolling element pockets are limited by the webs and the inner or outer raceway for the rolling elements.
  • An appropriately designed cage will be provided if the radial roller bearing is to be preassembled on an inner ring or a shaft or in an outer ring or a housing bore.

Landscapes

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

Abstract

Cage pour palier à roulement radial à roulement complet, dans laquelle les corps de roulement (4) sont maintenus pour le transport, afin d'empêcher toute perte, dans les logements (2) délimités par des nervures (3). Dans cette cage est intégrée au moins une pièce intercalaire (6) liée rigidement aux bagues frontales (1). La pièce intercalaire (6) s'étend dans les sens périphériques, de telle façon que le jeu d'extrémité entre le premier et le dernier corps de roulement (4) tangents entre eux soit inférieur au jeu d'un corps (4) dans un logement (2). Pour une telle cage montée à l'emplacement d'un palier à roulement, on est ainsi assuré que les corps de roulement (4) sont, en toutes circonstances, à distance des nervures (3), ce qui exclut tout endommagement desdites nervures (3) par les corps de roulement (4).
PCT/EP1992/002524 1991-11-08 1992-11-04 Cage pour palier a roulement radial a roulement complet Ceased WO1993009357A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4136745.6 1991-11-08
DE19914136745 DE4136745A1 (de) 1991-11-08 1991-11-08 Waelzlagerkaefig fuer vollrollige radialwaelzlager

Publications (1)

Publication Number Publication Date
WO1993009357A1 true WO1993009357A1 (fr) 1993-05-13

Family

ID=6444330

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/002524 Ceased WO1993009357A1 (fr) 1991-11-08 1992-11-04 Cage pour palier a roulement radial a roulement complet

Country Status (2)

Country Link
DE (1) DE4136745A1 (fr)
WO (1) WO1993009357A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824070A1 (de) * 1998-05-29 1999-12-02 Spinea S R O Kosice Wälzlager
US20140341492A1 (en) * 2013-05-17 2014-11-20 Jtekt Corporation Ball bearing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010018920A1 (de) * 2010-04-30 2011-11-03 Schaeffler Technologies Gmbh & Co. Kg Rollenlagerkäfig und Verfahren zum Herstellen eines Rollenlagerkäfigs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH266186A (fr) * 1940-02-12 1950-01-15 Roulements A Aiguilles Sa D Roulement à éléments cylindriques de roulement.
FR1372300A (fr) * 1963-10-21 1964-09-11 Kugelfischer G Schaefer & Co Perfectionnements apportés aux cages pour roulements à rouleaux
DE2831183A1 (de) * 1978-07-15 1980-01-24 Schaeffler Ohg Industriewerk Vollrolliges waelzlager

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331810A (en) * 1943-10-12 Bathythermograph
DE1105668B (de) * 1958-01-10 1961-04-27 Duerkoppwerke Ag Waelzlagerkaefig aus Kunststoff
DE1286829B (de) * 1958-01-10 1969-01-09 Duerkoppwerke Waelzlagerkaefig aus Kunststoff
DE1808161U (de) * 1960-01-26 1960-03-17 Skf Kugellagerfabriken Gmbh Vollrolliges zylinderrollenlager.
DE1256488B (de) * 1962-10-31 1967-12-14 Kugelfischer G Schaefer & Co Kaefig fuer Rollenlager
DE2338144A1 (de) * 1973-07-27 1975-02-13 Schaeffler Ohg Industriewerk Lagerung eines auf einer welle wahlweise frei umlaufenden oder mit dieser kuppelbaren bauteiles
DE2651827A1 (de) * 1976-11-13 1978-05-18 Kugelfischer G Schaefer & Co Vollrolliges bzw. vollkugeliges waelzlager
DE7802414U1 (de) * 1978-01-27 1978-05-03 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Vollrolliges Zylinderrollen- oder nadellager
FR2460416A1 (fr) * 1979-06-29 1981-01-23 Nadella Cage de retenue du type peigne et roulements munis d'une telle cage
SU842265A1 (ru) * 1979-06-29 1981-06-30 Тольяттинский Политехническийинститут Заглушка игольчатого подшипника
BR8107681A (pt) * 1981-01-08 1982-08-24 Torrington Co Conjunto de roletes com mecanismo de retencao de roletes
DE8617013U1 (de) * 1986-06-26 1986-08-07 SKF GmbH, 8720 Schweinfurt Einteiliges Füllstück, insbesondere für vollrollige bzw. vollnadelige Lager
DE3728877A1 (de) * 1987-08-29 1989-03-09 Kugelfischer G Schaefer & Co Kegelrollenlager

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH266186A (fr) * 1940-02-12 1950-01-15 Roulements A Aiguilles Sa D Roulement à éléments cylindriques de roulement.
FR1372300A (fr) * 1963-10-21 1964-09-11 Kugelfischer G Schaefer & Co Perfectionnements apportés aux cages pour roulements à rouleaux
DE2831183A1 (de) * 1978-07-15 1980-01-24 Schaeffler Ohg Industriewerk Vollrolliges waelzlager

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824070A1 (de) * 1998-05-29 1999-12-02 Spinea S R O Kosice Wälzlager
US20140341492A1 (en) * 2013-05-17 2014-11-20 Jtekt Corporation Ball bearing
US9127716B2 (en) * 2013-05-17 2015-09-08 Jtekt Corporation Ball bearing

Also Published As

Publication number Publication date
DE4136745A1 (de) 1993-05-13

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