WO1993002295A1 - Process for producing a roller bearing cage of polymeric material for roller bearings for rotary or longitudinal movements - Google Patents

Process for producing a roller bearing cage of polymeric material for roller bearings for rotary or longitudinal movements Download PDF

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Publication number
WO1993002295A1
WO1993002295A1 PCT/EP1992/001459 EP9201459W WO9302295A1 WO 1993002295 A1 WO1993002295 A1 WO 1993002295A1 EP 9201459 W EP9201459 W EP 9201459W WO 9302295 A1 WO9302295 A1 WO 9302295A1
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WO
WIPO (PCT)
Prior art keywords
seal
cage
bearing cage
roller bearing
sealing
Prior art date
Application number
PCT/EP1992/001459
Other languages
German (de)
French (fr)
Inventor
Jürgen RABE
Original Assignee
Ina Wälzlager 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 Ina Wälzlager Schaeffler Kg filed Critical Ina Wälzlager Schaeffler Kg
Publication of WO1993002295A1 publication Critical patent/WO1993002295A1/en

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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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/068—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track
    • F16C29/0683—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque
    • F16C29/0685—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls
    • F16C29/0688—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls whereby a sleeve surrounds the circulating balls and thicker part of the sleeve form the load bearing tracks

Definitions

  • the invention relates to a method for producing a roller bearing cage from polymeric materials for roller bearings for rotary or longitudinal movements according to the preamble of claim 1
  • the object of the present invention is to produce roller bearing cages made of polymeric plastics for roller bearings for rotary or longitudinal movements with the required sealing parts in an efficient and therefore inexpensive manner.
  • the separate manufacture of the sealing elements and their separate assembly should be avoided. This object is achieved by the method steps specified in the characterizing part of claim 1.
  • the invention is characterized in particular by the fact that inexpensive manufacture is possible by means of a • continuous manufacturing process with little expenditure of time.
  • FIG. 2 shows a section of a frame of a roller bearing cage in a perspective view with the representation of only one end sealing ring and with 6 connecting webs
  • FIG. 3 shows the view of the upper half of a roller bearing cage in a longitudinal section with a frame according to FIG 4 shows the view of the upper half of the rolling bearing cage according to section II of FIG. 3
  • FIG. 5 shows the view of the upper half of a rolling bearing cage in a longitudinal section corresponding to FIG. 3, but with sealing rings and each with two sealing lips
  • FIG. 6 shows the view a further embodiment of a roller bearing cage in longitudinal section with a coaxial metallic sleeve
  • FIGS. 7 and 8 each show a view of the upper half of a roller bearing cage in longitudinal section, as shown in FIGS. 3 and 5, with different configurations of the sealing lips .
  • Fig. 1 is a frame of a roller bearing cage an elastic polymer called, which is made by injection molding or pressing. It has on each of the two ends 2, 3 a rim 4, 5, each with an inwardly facing annular sealing lip 6 and 7.
  • the rims 4, 5 are connected to one another by webs 8.
  • the webs 8 are integrally formed on the outside of the rims 4, 5.
  • more, but also less than the four webs 8 shown can preferably be provided.
  • the rim 4 has an annular sealing lip 6 which projects slightly outwards, and a sealing ring 9, on which the webs 8 are integrally formed on the inside.
  • a sealing ring 9 on which the webs 8 are integrally formed on the inside.
  • more or less than the six webs 8 shown can be provided.
  • the frame 1 is then encapsulated with a cage part 10, which forms a roller bearing cage with the frame 1 in one operation by means of a force-fitting and / or form-fitting and / or material connection.
  • This roller bearing cage is in the embodiment as a cage for balls one
  • Rolling bearing designed for longitudinal movements.
  • An elastic or non-elastic polymer with a preferably low coefficient of friction is provided as the material for the roller bearing cage.
  • Polyurethane elastomers such as, for example, nitrile, butadiene acrylate, silicone rubber, or mixtures or alloys of at least two polymers of this type can be used as elastic polymers.
  • Polyamides, polyimides, polyester sulfones or mixtures or alloys of at least two of these polymers can be used as non-elastic polymers.
  • the sealing lips 6, 7 remain completely free and the further inside sealing rings 9 on the sealing surface 11, with which they rest sealingly and slidably on an inserted shaft.
  • the thighsliege ⁇ den surface 12 remain free of the webs 8, which are used later at the an ⁇ shaft.
  • the rims 4, 5 are also only extrusion-coated on the inner end faces 13.
  • the webs 8 are manufactured in such a way that they lie between the approximately C-shaped slots 15 which are open on the inside 14 of the cage part 10 and the outer groove 16 of two adjacent ball guides 17 in the cage part 10, each of which is formed from a slot 15 and an outer groove 16 are positioned.
  • the roller bearing cage according to the invention is preferably produced with a tool with a cylindrical tool stamp and with differently movable slides for the sealing frame or for the cage with the cutouts for the rims 4, 5 and the webs 8 or for the cage part 10.
  • the diameter of a tool stamp in the area of the sealing surfaces 11 of the sealing lips 6, 7 and possibly the sealing rings 9 is at most as large as the diameter of a shaft used later, but in the remaining area at least as large as this.
  • FIGS. 7 and 8 each show exemplary embodiments with annular sealing beads 19 or 19 and 20 which are round in cross section.
  • Roller bearing cages for other types of roller bearings for example for radial ball bearings, tapered bearings or the like, can also be produced by the method according to the invention.
  • a sealing lip 21 can also be formed in the middle part of a cage, as indicated by dashed lines in FIG. 8. This middle sealing lip 21 is provided, for example, between two separate bearing sections 23 and 24.
  • the position number 15 in turn denotes the approximately C-shaped slots - corresponding to FIG. 3
  • the design of the webs is not limited to the webs 8 shown, which run in a straight line or coaxial to the longitudinal axis 22. These can also be formed at an angle on the shelves 4, 5.
  • the present invention is characterized in particular in that the separate manufacture and separate assembly of individual sealing elements can be avoided.
  • the necessary tight fit of the seals is also guaranteed when relubricating. Additional locking rings are completely unnecessary.
  • the cage and seals can be connected to one another in a force-fitting and / or form-fitting and / or material-locking manner in a single operation.
  • the "sealing frame" connects permanently with the material of the rolling bearing cage.

Abstract

A process for producing a roller bearing cage of polymeric material for roller bearings for rotary or longitudinal movements having at least one seal lying against a shaft passing through the roller bearing cage so as to seal and slide is to be improved in such a way that such roller bearing cages can be made rationally and hence economically. This is achieved through the following process stages: moulding a frame (1) of an elastic polymer, with the production of at least one seal (6, 7) with rods moulded thereon; spraying a cage section (10) around the frame (1) in such a way that at least the surface (11) intended for the seal and possibly corresponding surfaces (12) of the rods (8) are not sprayed with the plastic of the cage section (10).

Description

Verfahren zur Herstellung eines Wälzlagerkäfigs Method of manufacturing a roller bearing cage
aus poly eren Werkstoffen für Wälzlager für Dreh¬made of polymeric materials for rolling bearings for Dreh¬
oder Längsbewegungenor longitudinal movements
Die Erfindung betrifft ein Verfahren zur Herstellung eines Wälzlagerkäfigs aus polymeren Werkstoffen für Wälzlager für Dreh- oder Längsbewegungen gemäß dem Oberbegriff des Anspruches 1The invention relates to a method for producing a roller bearing cage from polymeric materials for roller bearings for rotary or longitudinal movements according to the preamble of claim 1
Bei Wälzlagern, beispielsweise für Dreh- oder Längsbewegungen, ist es bekannt, den Wälzlagerkäfig aus einem polymeren Werk¬ stoff herzustellen und an einer oder an beiden Stirnseiten des Wälzlagerkäfigs eine oder mehrere Dichtringe mit einer Dichtlippe einzubauen. Diese Dichtringe werden als gesondert hergestellte Dichtungsteile montiert und in der Regel mit einem Sicherungsring arretiert. Es müssen daher immer mehrere Bauelemente einzeln und in mehreren Verfahrensstufen montiert werden. Derartige Herstellungsverfahren sind daher nicht nur arbeits- und kosteπintensi , sondern auch die Lagerhaltung und die Logistik sind aufwendig.In the case of rolling bearings, for example for rotary or longitudinal movements, it is known to produce the rolling bearing cage from a polymeric material and to install one or more sealing rings with a sealing lip on one or both end faces of the rolling bearing cage. These sealing rings are assembled as separately manufactured sealing parts and are usually locked with a locking ring. It is therefore always necessary to assemble several components individually and in several process stages. Such manufacturing processes are therefore not only labor and cost intensive, but also warehousing and logistics are complex.
Mit der vorliegenden Erfindung soll die Aufgabe gelöst werden, Wälzlagerkäfige aus polymeren Kunststoffen für Wälzlager für Dreh- oder Längsbewegungen mit den erforderlichen Dichtungs- teilen rationell und damit preisgünstig herzustellen. Insbe- " sondere soll die getrennte Herstellung der Dichtungselemente und deren gesonderte Montage vermieden werden. Gelöst wird diese Aufgabe durch die im Kennzeichen des An¬ spruches 1 angegebenen Verfahrensschritte.The object of the present invention is to produce roller bearing cages made of polymeric plastics for roller bearings for rotary or longitudinal movements with the required sealing parts in an efficient and therefore inexpensive manner. In particular, the separate manufacture of the sealing elements and their separate assembly should be avoided. This object is achieved by the method steps specified in the characterizing part of claim 1.
Die Erfindung zeichnet sich insbesondere dadurch aus, daß eine preisgünstige Herstellung durch einen• kontinuierlichen Fertigungsprozeß bei geringem Zeitaufwand möglich ist.The invention is characterized in particular by the fact that inexpensive manufacture is possible by means of a • continuous manufacturing process with little expenditure of time.
Weitere vorteilhafte Einzelheiten der Erfindung sind in den Unteransprüchen angegeben und werden nachfolgend anhand der in der Zeichnung veranschaulichten Ausführungsbeispiele näher beschrieben. Es zeigen:Further advantageous details of the invention are specified in the subclaims and are described in more detail below with reference to the exemplary embodiments illustrated in the drawing. Show it:
Fig. 1 ein Gerüst eines Wälzlagerkäfigs in perspektivi¬ scher Ansicht mit zwei stirnseitigen Dichtringen und mit vier Verbindungsstegen,1 a scaffold of a roller bearing cage in a perspective view with two sealing rings on the front and with four connecting webs,
Fig. 2 einen Abschnitt eines Gerüstes eines Wälzlager¬ käfigs in perspektivischer Ansicht mit der Dar¬ stellung lediglich eines stirnseitigen Dichtringes und mit 6 Verbindungsstegen, Fig. 3 die Ansicht der oberen Hälfte eines Wälzlagerkäfigs in einem Längsschnitt mit einem Gerüst gemäß Fig. 2, Fig. 4 die Ansicht der oberen Hälfte des Wälzlagerkäfigs gemäß dem Schnitt I-I der Fig. 3, Fig. 5 die Ansicht der oberen Hälfte eines Wälzlagerkäfigs in einem Längsschnitt entsprechend Fig. 3, jedoch mit Dichtringen und mit jeweils zwei Dichtlippen, Fig. 6 die Ansicht einer weiteren Ausführungsform eines Wälz lagerkäfigs im Längsschnitt mit einer koaxialen metallischen Hülse und die Fig. 7 und 8 je eine Ansicht der oberen Hälfte eines Wälzlager¬ käfigs im Längsschnitt, wie in den Fig. 3 und 5 dar¬ gestellt, mit unterschiedlichen Ausbildungen der Dichtlippen.2 shows a section of a frame of a roller bearing cage in a perspective view with the representation of only one end sealing ring and with 6 connecting webs, FIG. 3 shows the view of the upper half of a roller bearing cage in a longitudinal section with a frame according to FIG 4 shows the view of the upper half of the rolling bearing cage according to section II of FIG. 3, FIG. 5 shows the view of the upper half of a rolling bearing cage in a longitudinal section corresponding to FIG. 3, but with sealing rings and each with two sealing lips, FIG. 6 shows the view a further embodiment of a roller bearing cage in longitudinal section with a coaxial metallic sleeve and FIGS. 7 and 8 each show a view of the upper half of a roller bearing cage in longitudinal section, as shown in FIGS. 3 and 5, with different configurations of the sealing lips .
In Fig. 1 ist mit 1 ein Gerüst eines Wälzlagerkäfigs aus einem elastischen Polymer bezeichnet, das in Spritzgieß- oder Preßtechnik hergestellt ist. Es besitzt an den beiden Stirn¬ seiten 2, 3 je einen Bord 4, 5 mit je einer nach innen weisen¬ den ringförmigen Dichtlippe 6 bzw. 7. Die Borde 4, 5 sind durch Stege 8 miteinander verbunden. Bei dem Ausführungsbei¬ spiel gemäß Fig. 1 sind die Stege 8 außen an die Borde 4, 5 bündig angeformt. Selbstverständlich können bevorzugt mehr, aber auch weniger als die dargestellten vier Stege 8 vorge¬ sehen sein .In Fig. 1, 1 is a frame of a roller bearing cage an elastic polymer called, which is made by injection molding or pressing. It has on each of the two ends 2, 3 a rim 4, 5, each with an inwardly facing annular sealing lip 6 and 7. The rims 4, 5 are connected to one another by webs 8. In the exemplary embodiment according to FIG. 1, the webs 8 are integrally formed on the outside of the rims 4, 5. Of course, more, but also less than the four webs 8 shown can preferably be provided.
Bei dem Ausführungsbeispiel gemäß Fig. 2 besitzt der Bord 4 eine geringfügig nach außen abstehende ringförmige Dichtlip¬ pe 6, sowie einen Dichtring 9, an der die Stege 8 innenbündig angeformt sind. Auch bei dieser Ausführungsform können mehr oder auch weniger als die dargestellten sechs Stege 8 vorge¬ sehen sein. Das Gerüst 1 ist anschließend mit einem Käfig¬ teil 10 umspritzt, das mit dem Gerüst 1 in einem Arbeitsgang durch eine kraft- und/oder form- und/oder stoffschlüssige Ver¬ bindung einen Wälzlagerkäfig bildet. Dieser Wälzlagerkäfig ist beim Ausführungsbeispiel als Käfig für Kugeln einesIn the exemplary embodiment according to FIG. 2, the rim 4 has an annular sealing lip 6 which projects slightly outwards, and a sealing ring 9, on which the webs 8 are integrally formed on the inside. In this embodiment too, more or less than the six webs 8 shown can be provided. The frame 1 is then encapsulated with a cage part 10, which forms a roller bearing cage with the frame 1 in one operation by means of a force-fitting and / or form-fitting and / or material connection. This roller bearing cage is in the embodiment as a cage for balls one
Wälzlagers für Längsbewegungen ausgeführt. Als Material für den Wälzlagerkäfig ist ein elastisches oder nichtelastisches Polymer mit vorzugsweise geringem Reibungskoeffizienten vor¬ gesehen .Rolling bearing designed for longitudinal movements. An elastic or non-elastic polymer with a preferably low coefficient of friction is provided as the material for the roller bearing cage.
Als elastische Polymere können Polyurethanelastomere, Poly¬ esterelastomere, vernetzender Kautschuk, wie beispielsweise Nitril-, Butadien-Acrylat , Silikonkautschuk oder Mischungen bzw. Legierungen von zumindest zwei Polymeren dieser Art ver- wendet werden.Polyurethane elastomers, polyester elastomers, crosslinking rubber, such as, for example, nitrile, butadiene acrylate, silicone rubber, or mixtures or alloys of at least two polymers of this type can be used as elastic polymers.
Als nichtelastische Polymere können beispielsweise Polyamide, Polyimide, Polyest ersulfone oder Mischungen bzw. Legierungen von zumindest zweien dieser Polymere zur Anwendung gelangen. Beim Umspritzen bleiben die Dichtlippen 6, 7 vollständig und die weiter innenliegenden Dichtringe 9 an der Dichtfläche 11, mit der sie dichtend und gleitfähig auf einer durchgesteckten Welle aufliegen, frei. Ebenso 'bleiben die innenliegeπden Fläche 12 der Stege 8 frei, die an der später eingesetzten Welle an¬ liegen. Bei den Ausführungsbeispielen der Figuren 2 bis 4 sind auch die Borde 4, 5 lediglich an den inneren Stirnflächen 13 umspritzt.Polyamides, polyimides, polyester sulfones or mixtures or alloys of at least two of these polymers can be used as non-elastic polymers. When extrusion coating, the sealing lips 6, 7 remain completely free and the further inside sealing rings 9 on the sealing surface 11, with which they rest sealingly and slidably on an inserted shaft. Likewise 'the innenliegeπden surface 12 remain free of the webs 8, which are used later at the an¬ shaft. In the exemplary embodiments in FIGS. 2 to 4, the rims 4, 5 are also only extrusion-coated on the inner end faces 13.
Die Stege 8 sind derart gefertigt, daß sie zwischen den an der Innenseite 14 des Käfigteils 10 offenen, etwa C-förmigen Schlitzen 15 und der Außenut 16 zweier benachbarter, aus je einem Schlitz 15 und einer Außennut 16 gebildeter Kugel¬ führungen 17 im Käfigteil 10 positioniert sind.The webs 8 are manufactured in such a way that they lie between the approximately C-shaped slots 15 which are open on the inside 14 of the cage part 10 and the outer groove 16 of two adjacent ball guides 17 in the cage part 10, each of which is formed from a slot 15 and an outer groove 16 are positioned.
Die Herstellung des erfindungsgemäßen Wälzlagerkäfigs erfolgt bevorzugt mit einem Werkzeug mit einem zylindrischen Werkzeug¬ stempel und mit für das Dichtungsgerüst bzw. für den Käfig unterschiedlichen radial beweglichen Schiebern mit den Aussparungen für die Borde 4, 5 und die Stege 8 bzw. für den Käfigteil 10. Der Durchmesser eines Werkzeugstempels ist im Bereich der Dichtflächen 11 der Dichtlippen 6, 7 und gegebenenfalls der Dichtringe 9 höchstens so groß wie der Durchmesser einer spä¬ ter eingesetzten Welle, im übrigen Bereich jedoch mindestens so groß wie dieser.The roller bearing cage according to the invention is preferably produced with a tool with a cylindrical tool stamp and with differently movable slides for the sealing frame or for the cage with the cutouts for the rims 4, 5 and the webs 8 or for the cage part 10. The diameter of a tool stamp in the area of the sealing surfaces 11 of the sealing lips 6, 7 and possibly the sealing rings 9 is at most as large as the diameter of a shaft used later, but in the remaining area at least as large as this.
Beim Ausführungsbeispiel gemäß Fig. 5 sind an jedem Bord 4, 5 jeweils zwei ringförmige Dichtlippen 6, 7 angeformt.5, two annular sealing lips 6, 7 are formed on each board 4, 5.
In der Fig. 6 ist ein Längsführungselement 18 dargestellt, bei dem der Käfigteil 10 aus einem Kunststoff-Formteil und aus einer hierzu koaxialen metallischen Hülse 10.1 besteht. Die gleichen Teile sind mit den gleichen Bezugsziffern wie in den Fig. 3 bis 5 versehen. Die Figuren 7 und 8 zeigen jeweils Ausführungsbeispiele mit im Querschnitt runden Ringdichtwulsten 19 bzw. 19 und 20.6 shows a longitudinal guide element 18, in which the cage part 10 consists of a plastic molded part and a metallic sleeve 10.1 coaxial therewith. The same parts are provided with the same reference numerals as in FIGS. 3 to 5. FIGS. 7 and 8 each show exemplary embodiments with annular sealing beads 19 or 19 and 20 which are round in cross section.
Nach dem erfindungsgemäßen Verfahren können auch Wälzlager- käfige für andere Arten von Wälzlagern, beispielsweise für Radialkugellager, -kegellager oder dergleichen^ hergestellt werden .Roller bearing cages for other types of roller bearings, for example for radial ball bearings, tapered bearings or the like, can also be produced by the method according to the invention.
Die Form der Dichtungen ist jeweils an den entsprechenden Zweck angepaßt. Unter Umständen kann auch eine Dichtlippe 21 im mittleren Teil eines Käfigs, wie in Fig. 8 gestrichelt an¬ gedeutet, angeformt sein. Diese mittlere Dichtlippe 21 ist beispielsweise zwischen zwei getrennten Lagerabschnitten 23 und 24 vorgesehen. Mit der Positionsziffer 15 sind wiederum die etwa C-förmigen Schlitze - entsprechend Fig. 3 - bezeichnetThe shape of the seals is adapted to the respective purpose. Under certain circumstances, a sealing lip 21 can also be formed in the middle part of a cage, as indicated by dashed lines in FIG. 8. This middle sealing lip 21 is provided, for example, between two separate bearing sections 23 and 24. The position number 15 in turn denotes the approximately C-shaped slots - corresponding to FIG. 3
Die Ausbildung der Stege ist nicht auf die dargestellten, geradlinig oder koaxial zur Längsachse 22 verlaufenden Stege 8 beschränkt. Diese können auch in einem Winkel an die Borde 4, 5 angeformt sein.The design of the webs is not limited to the webs 8 shown, which run in a straight line or coaxial to the longitudinal axis 22. These can also be formed at an angle on the shelves 4, 5.
Die vorliegende Erfindung zeichnet sich insbesondere dadurch aus, daß die getrennte Herstellung und die gesonderte Montage einzelner Dichtungselemente vermieden werden kann. Der not- wendige Festsitz der Dichtungen ist auch beim Nachschmieren gewährleistet. Zusätzliche Sicherungsringe sind völlig ent¬ behrlich. Käfig und Dichtungen lassen sich in einem einzigen Arbeitsgang kraft- und/oder form- und/oder stoffschlüssig miteinander verbinden. Das "Dichtungsgerüst" verbindet sich hierbei dauerhaft mit dem Werkstoff des Wälzlagerkäfigs. The present invention is characterized in particular in that the separate manufacture and separate assembly of individual sealing elements can be avoided. The necessary tight fit of the seals is also guaranteed when relubricating. Additional locking rings are completely unnecessary. The cage and seals can be connected to one another in a force-fitting and / or form-fitting and / or material-locking manner in a single operation. The "sealing frame" connects permanently with the material of the rolling bearing cage.

Claims

Patentansprüche Claims
1. Verfahren zur Herstellung eines Wälzlagerkäfigs aus polymeren Werkstoffen für Wälzlager für Dreh- oder Längsbe¬ wegungen, der mindestens eine Dichtung aufweist, die auf einer den Wälzlagerkäfig durchdringenden Welle dichtend und gleitfähig aufliegt, gekennzeichnet durch folgende Ver¬ fahrensschritte:1. A process for producing a rolling bearing cage from polymeric materials for rolling bearings for rotary or longitudinal movements, which has at least one seal which lies sealingly and slidably on a shaft penetrating the rolling bearing cage, characterized by the following process steps:
- Formen eines Gerüstes (1) aus einem elastischen Polymer, indem eine oder mehrere Dichtung(en) (6, 1 9) mit an diesen angeformten Stegen (8) hergestellt wird bzw. werden ,- Forming a framework (1) from an elastic polymer by producing one or more seal (s) (6, 1 9) with webs (8) molded onto them,
- Umspritzen des Gerüstes (1) mit einem Käfigteil (10) derart, daß wenigstens die für die Dichtung vorgesehene Fläche (11) und gegebenenfalls entsprechende Flächen (12) der Stege (8) nicht mit dem Kunststoff des Käfigteils (IQ) umspritzt werden.- Injection molding of the scaffold (1) with a cage part (10) such that at least the surface (11) provided for the seal and, if appropriate, corresponding surfaces (12) of the webs (8) are not extrusion-coated with the plastic of the cage part (IQ).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Gerüst (1) aus wenigstens zwei Dichtringen (9) sowie diese Dichtringe (9) verbindenden Stegen (8) hergestellt wird .2. The method according to claim 1, characterized in that a frame (1) from at least two sealing rings (9) and these sealing rings (9) connecting webs (8) is produced.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an den oder an die Dichtring(e) (9) wenigstens eine Dicht¬ lippe (6, 7) angeformt wird. 3. The method according to claim 1 or 2, characterized in that at least one sealing lip (6, 7) is formed on or on the sealing ring (s) (9).
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zur Herstellung eines Gerüstes (1) mit wenigstens einer ringförmigen Dichtlippe (6, 7) bzw. einem Dichtring (9) ein Werkzeugstempel mit einem Durchmesser ver- wendet wird, der im Bereich der Dichtfläche (11) der Dichtung (en) (6, 7; 9) höchstens und im übrigen Bereich mindestens dem Durchmesser einer zuzuordnenden Welle entspricht.4. The method according to any one of claims 1 to 3, characterized in that a tool stamp with a diameter is used to manufacture a frame (1) with at least one annular sealing lip (6, 7) or a sealing ring (9) in the area of the sealing surface (11) of the seal (s) (6, 7; 9) corresponds at most and in the remaining area at least to the diameter of a shaft to be assigned.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Gerüst (1) aus einem elastischen oder aus einem nichtelastischen Polymer hergestellt wird. 5. The method according to any one of claims 1 to 4, characterized in that the frame (1) is made of an elastic or a non-elastic polymer.
PCT/EP1992/001459 1991-07-23 1992-06-29 Process for producing a roller bearing cage of polymeric material for roller bearings for rotary or longitudinal movements WO1993002295A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4124341.2 1991-07-23
DE19914124341 DE4124341A1 (en) 1991-07-23 1991-07-23 METHOD FOR PRODUCING A ROLLER BEARING CAGE FROM POLYMERIC MATERIALS FOR ROLLER BEARINGS FOR ROTARY OR LONGITUDE MOVEMENTS

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EP0644345A1 (en) * 1993-09-16 1995-03-22 SKF Industrial Trading & Development Company, B.V. A method of manufacturing a seal for roller bearing, seal for a roller bearing and a roller bearing provided with such a seal

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NL9301603A (en) * 1993-09-16 1995-04-18 Skf Ind Trading & Dev Rolling bearing, method for its manufacture and cage or cage part for use in the rolling bearing.
DE19704630C2 (en) * 1997-02-07 1999-08-12 Skf Linearsysteme Gmbh Radial seal
DE102005028284B3 (en) * 2005-06-18 2006-09-07 Ab Skf Bearing assembly has balls installed in hollow cylinder-like cage which is constructed for sealed bearing upon one end face of outer section and on outer surface of inner section

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EP0644345A1 (en) * 1993-09-16 1995-03-22 SKF Industrial Trading & Development Company, B.V. A method of manufacturing a seal for roller bearing, seal for a roller bearing and a roller bearing provided with such a seal
NL9301601A (en) * 1993-09-16 1995-04-18 Skf Ind Trading & Dev Method for the manufacture of a seal for a rolling bearing, sealing for a rolling bearing, as well as a rolling bearing provided with such a sealing.
US5618488A (en) * 1993-09-16 1997-04-08 Skf Industrial Trading & Development Company B.V. Method of manufacturing a seal for a roller bearing

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