WO2022100776A1 - Outer-ring-fastened roller sleeve - Google Patents

Outer-ring-fastened roller sleeve Download PDF

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Publication number
WO2022100776A1
WO2022100776A1 PCT/DE2021/100768 DE2021100768W WO2022100776A1 WO 2022100776 A1 WO2022100776 A1 WO 2022100776A1 DE 2021100768 W DE2021100768 W DE 2021100768W WO 2022100776 A1 WO2022100776 A1 WO 2022100776A1
Authority
WO
WIPO (PCT)
Prior art keywords
cage
outer ring
lubricating oil
roller
ring
Prior art date
Application number
PCT/DE2021/100768
Other languages
German (de)
French (fr)
Inventor
Markus Zapf
Viktor PFARHERR
Paul WITTMANN
Eugen Hess
Alfred HOCK
Andreas Neudecker
Sebastian Warter
Original Assignee
Schaeffler Technologies AG & 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 & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2022100776A1 publication Critical patent/WO2022100776A1/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
    • 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
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • F16C19/466—Needle bearings with one row or needles comprising needle rollers and an outer ring, i.e. subunit without inner ring
    • 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
    • F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
    • 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
    • F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
    • F16C33/4676—Details of individual pockets, e.g. shape or roller retaining means of the stays separating adjacent cage pockets, e.g. guide means for the bearing-surface of 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
    • F16C33/58—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
    • F16C33/6637—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
    • F16C33/6685—Details of collecting or draining, e.g. returning the liquid to a sump
    • 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
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring

Definitions

  • the invention relates to a roller sleeve fastened to the outer ring according to the features forming the preamble of patent claim 1, which can be used particularly advantageously for high-speed applications in e-mobility, for example for mounting transmission shafts.
  • roller sleeves are the type of radial roller bearing that have the smallest radial overall height and enable particularly space-saving and easy-to-install bearings with a high radial load capacity.
  • the best-known and most frequently used design is the housing- or outer ring-mounted roller sleeve known from DE 195 13 668 A1, for example, which consists of an outer ring that can be inserted into a housing and a roller and cage assembly that is inserted into this outer ring, which is connected by one of two side rings and a plurality of cage webs connecting the side rings to one another, as well as a large number of roller rolling elements inserted in cage pockets formed between the cage webs, which are held by the bearing cage at regular intervals in the circumferential direction and roll on an outer raceway formed by the inner lateral surface of the outer ring, with the axial
  • the roller and cage assembly is guided by two flanges which are arranged on the axial sides of the outer ring and extend radially inwards.
  • roller sleeve described in this document has the additional feature that in the free edge of one of the radial rims several circumferentially equal moderately distributed lubricating holes are incorporated, with which the supply of a lubricant in the roll sleeve should be improved.
  • roller sleeves are not suitable for high-speed applications, such as in e-mobility, since they have high friction combined with high heat generation, which puts a strain on all bearing components.
  • So-called splashing losses due to the lubricating oil in the roller sleeve were found to be the cause of the majority of the friction, which is caused by the fact that the lubricating oil is accelerated outwards by the acting centrifugal force at high speeds of the roller and cage assembly and collects in the outer ring.
  • the amount of lubricating oil that is in the outer ring and no longer drains away becomes so high at a certain point in time that it impedes the rotation of the roller and cage assembly and thus causes the aforementioned friction or heat generation.
  • the invention is therefore based on the object of designing a roller sleeve fastened to the outer ring, in which the splashing losses caused by lubricating oil accumulated in the outer ring and the resulting increased heat generation are effectively avoided.
  • this object is achieved with an outer ring-mounted roller sleeve according to the preamble of claim 1 such that the cage bars of the bearing cage over the entire length of the outer diameter have an outer surface that protrudes beyond the side rings and at least two curved lubricating oil guide grooves are formed in each of these outer surfaces, with which a lubricating oil flow occurring in the outer ring during bearing operation can be redirected from a tangential direction to an axial direction and can be derived from the roller sleeve through recesses arranged in both edges of the outer ring.
  • the inlet openings of the lubricating oil guide grooves open into a cage pocket in the direction of rotation, while the outlet openings of the lubricating oil guide grooves open out into one of the two side surfaces of the cage bars.
  • the curved shape of the lubricating oil guide grooves thus makes it possible to divert the tangential lubricating oil flow that occurs when the roller and cage assembly rotates in an axial direction to the recesses in the rims of the outer ring.
  • the inlet openings of the lubricating oil guide grooves each open into two adjacent cage pockets, while the outlet openings of the lubricating oil guide grooves open out in each case into one of the two side faces of the cage bars.
  • the curved lubricating oil guide grooves also make it possible here to divert the tangential lubricating oil flow that occurs when the roller and cage assembly rotates, independently of the direction of rotation of the roller and cage assembly, in an axial direction to the recesses in the rims of the outer ring.
  • the recesses arranged in the rims of the outer ring should be designed as bores or slots arranged evenly distributed around the circumference on a common reference circle or as exemptions worked into the free edge of the rims evenly distributed around the circumference the same dimensions are formed.
  • bores or elongated holes it has proven to be advantageous if their pitch circle has a larger diameter than the outer diameter of the side rings of the bearing cage, so that the outflow of the lubricating oil through the recesses is not impeded by the side rings of the bearing cage.
  • the outer ring-mounted roller sleeve designed according to the invention thus has the advantage over the outer ring-mounted roller sleeves known from the prior art that the amount of lubricating oil that accumulates at high speeds in the outer ring of the roller sleeve due to centrifugal force is reduced by lubricating oil guide grooves formed in the cage bars and by recesses in the rims of the outer ring can be reduced in a targeted manner.
  • lubricating oil which has already been heated by friction, is discharged from the outer ring. pumps so that cooler lubricating oil can flow from outside the roller sleeve and its heat generation can be reduced. This means that the flow of lubricating oil through the roller sleeve is increased and thus the heat dissipation from the roller sleeve is increased.
  • FIG. 1 shows a perspective overall view of a roller sleeve which is designed according to the invention and is fastened to the outer ring;
  • FIG. 2 shows a perspective view of the outer ring of the roller sleeve fastened to the outer ring according to the invention
  • FIG. 3 shows a perspective view of a first embodiment of the bearing cage of the roller sleeve fastened to the outer ring, designed according to the invention
  • FIG. 4 shows a perspective view of a second embodiment of the bearing cage of the roller sleeve fastened to the outer ring according to the invention.
  • FIG. 1 shows a schematic representation of a roller sleeve 1 that is suitable for high-speed applications and has an outer ring attached a bearing cage 4 consisting of two side rings 5, 6 and a plurality of cage bars 7 connecting the side rings 5, 6 to one another, and of a plurality roller bodies 9 inserted in cage pockets 8 formed between the cage bars 7, which are held at regular intervals by the bearing cage 4 in the circumferential direction and roll on an outer raceway 10 formed by the inner lateral surface of the outer ring 2 and visible in FIG.
  • the roller and cage assembly 3 is axially guided by two flanges 11, 12 arranged on the axial sides of the outer ring 2, which extend radially inward and are formed onto the outer ring 2 without cutting.
  • Figures 3 and 4 also show that the cage bars 7 of the bearing cage 4 have an outer surface 13 that projects beyond the outer diameter of the side rings 5, 6 over their entire length and that at least two curved lubricating oil guide grooves 14, 15 are formed in each of these outer surfaces 13 are, with which a lubricating oil flow occurring in the bearing operation in the outer ring 2 can be diverted from a tangential direction to an axial direction.
  • the diverted flow of lubricating oil is then diverted from the roller sleeve 1 through a plurality of recesses 16, 17 arranged in both rims 11, 12 of the outer ring 2 and shown in FIG.
  • the first embodiment of the bearing cage 5 of the roller sleeve 1 shown in FIG. 3 makes it clear that with a fixed direction of rotation of the bearing cage 4, two lubricating oil guide grooves 14, 15 arranged axially next to one another are formed in the outer surfaces 13 of all cage bars 7.
  • the inlet openings 18, 19 of the lubricating oil guide grooves 14, 15 each open into a cage pocket 8 in the direction of rotation, while the outlet openings 20, 21 of the lubricating oil guide grooves 14, 15 each open into one of the two side surfaces 22, 23 of the cage bars 7.
  • FIG. 4 also shows a second embodiment of the bearing cage 5 of the roller sleeve 1, which is suitable for roller sleeves 1 that support shafts moving in both directions of rotation.
  • two of the curved lubricating oil guide grooves 14, 15 are arranged axially next to each other in the outer surfaces 13 of the cage webs 7 for one direction of rotation, but two more are curved for the other direction of rotation running lubricating oil guide grooves 14 '15' are assigned in mirror image.
  • the inlet openings 18, 18'; 19, 19' of the lubricating oil guide grooves 14, 14'; 15, 15' each into two adjacent cage pockets 8, while the exit openings 19, 19'; 20, 20' of the lubricating oil guide grooves 14, 14'; 15, 15' each open into one of the two side faces 22, 23 of the cage bars 7.
  • the curved lubricating oil guide grooves 14, 14'; 15, 15′ also make it possible here to divert the tangential flow of lubricating oil that occurs when the roller ring 3 rotates, independently of the direction of rotation of the roller ring 3, in an axial direction to the recesses 16, 17 in the rims 11, 12 of the outer ring 2.

Abstract

The invention relates to an outer-ring-fastened roller sleeve (1), comprising an outer ring (2), which can be introduced into a housing, and a roller ring (3) which is inserted into said outer ring (2) and is formed by a bearing cage (4), which consists of two side rings (5, 6) and a plurality of cage webs (7) interconnecting the side rings (5, 6), and a plurality of roller-type rolling bodies (9) inserted into cage pockets (8) formed between the cage webs (7), which roller-type rolling bodies are retained by the bearing cage (4) at regular spacings in the circumferential direction and roll on an outer raceway (10) formed by the inner lateral surface of the outer ring (2), wherein the axial guidance of the roller ring (3) is carried out by two flanges (11, 12) which are arranged on the axial sides of the outer ring (2) and extend radially inwards. The outer-ring-fastened roller sleeve is characterized according to the invention in that the cage webs (7) of the bearing cage (4) have over their entire length an outer surface (13) protruding the outer diameter of the side rings (5, 6) and that at least two lubricating oil guide grooves (14, 15), which extend in a curved manner, are formed in each of these outer surfaces (13), by means of which a flow of lubricating oil arising during bearing operation in the outer ring (2) can be redirected from a tangential direction to an axial direction and can be discharged from the roller sleeve (1) via recesses (16, 17) arranged in both flanges (11, 12) of the outer ring (2).

Description

Bezeichnung der Erfindung designation of the invention
Außenringbefestigte Rollenhülse Outer ring mounted roller sleeve
Gebiet der Erfindung field of invention
Die Erfindung betrifft eine außenringbefestigte Rollenhülse nach den oberbegriffsbildenden Merkmalen des Patentanspruchs 1 , welche insbesondere vorteilhaft für Hochdrehzahlanwendungen in der E-Mobilität, beispielsweise zur Lagerung von Getriebewellen, anwendbar ist. The invention relates to a roller sleeve fastened to the outer ring according to the features forming the preamble of patent claim 1, which can be used particularly advantageously for high-speed applications in e-mobility, for example for mounting transmission shafts.
Hintergrund der Erfindung Background of the Invention
In der Wälzlagertechnik ist es allgemein bekannt, dass Rollenhülsen diejenige Bauform von Radial-Rollenwälzlagern sind, welche die kleinste radiale Bauhöhe aufweisen und besonders raumsparende und montagefreundliche Lagerungen mit hoher radialer Tragfähigkeit ermöglichen. Die bekannteste und am häufigsten verwendete Bauform stellt dabei die beispielsweise aus der DE 195 13 668 A1 bekannte gehäuse- bzw. außenringbefestigte Rollenhülse dar, die aus einen in ein Gehäuse einsetzbaren Außenring und einen in diesen Außenring eingesetzten Rollenkranz besteht, der durch einen aus zwei Seitenringen und mehreren die Seitenringe miteinander verbindenden Käfigstegen bestehenden Lagerkäfig sowie aus einer Vielzahl in zwischen den Käfigstegen gebildeten Käfigtaschen eingesetzter Rollenwälzkörper gebildet wird, die von dem Lagerkäfig in Umfangsrichtung in gleichmäßigen Abständen gehalten werden und auf einer durch die Innenmantelfläche des Außenrings gebildeten Außenlaufbahn abrollen, wobei die axiale Führung des Rollenkranzes durch zwei an den Axialseiten des Außenrings angeordnete und sich radial nach innen erstreckende Borde erfolgt. In rolling bearing technology, it is generally known that roller sleeves are the type of radial roller bearing that have the smallest radial overall height and enable particularly space-saving and easy-to-install bearings with a high radial load capacity. The best-known and most frequently used design is the housing- or outer ring-mounted roller sleeve known from DE 195 13 668 A1, for example, which consists of an outer ring that can be inserted into a housing and a roller and cage assembly that is inserted into this outer ring, which is connected by one of two side rings and a plurality of cage webs connecting the side rings to one another, as well as a large number of roller rolling elements inserted in cage pockets formed between the cage webs, which are held by the bearing cage at regular intervals in the circumferential direction and roll on an outer raceway formed by the inner lateral surface of the outer ring, with the axial The roller and cage assembly is guided by two flanges which are arranged on the axial sides of the outer ring and extend radially inwards.
Eine im Wesentlichen identisch ausgebildete außenringbefestigte Rollenhülse wird auch in der DE 10 2017 120 761 A1 offenbart. Die in diesem Dokument beschriebene Rollenhülse weist jedoch das zusätzliche Merkmal auf, dass in den freien Rand eines der radialen Borde mehrere in Umfangsrichtung gleich- mäßig verteilte Schmieröffnungen eingearbeitet sind, mit denen die Zuführung eines Schmiermittels in die Rollenhülse verbessert werden soll. An essentially identically designed outer ring-mounted roller sleeve is also disclosed in DE 10 2017 120 761 A1. However, the roller sleeve described in this document has the additional feature that in the free edge of one of the radial rims several circumferentially equal moderately distributed lubricating holes are incorporated, with which the supply of a lubricant in the roll sleeve should be improved.
In der Praxis hat es sich jedoch gezeigt, dass die bekannten Rollenhülsen für Hochdrehzahlanwendungen, wie beispielsweise in der E-Mobilität, nicht geeignet sind, da diese eine hohe Reibung verbunden mit einer hohen Wärmeentwicklung aufweisen, die eine Belastung für alle Lagerkomponenten darstellt. Als ursächlich für den größten Teil der Reibung wurden dabei sogenannte Planschverluste durch das in der Rollenhülse befindliche Schmieröl festgestellt, die dadurch entstehen, dass das Schmieröl bei hohen Drehzahlen des Rollenkranzes durch die wirkende Zentrifugalkraft nach außen beschleunigt wird und sich im Außenring ansammelt. Die sich im Außenring befindliche und nicht mehr abfließende Schmierölmenge wird dann zu einem bestimmten Zeitpunkt so hoch, dass sie den Rollenkranz in seiner Drehbewegung behindert und somit die besagte Reibung bzw. Wärmeentwicklung verursacht. Um die im Außenring angestaute Schmierölmenge zu reduzieren ist es zwar möglich, die Höhe der radialen Borde zu reduzieren, jedoch müssen diese Borde eine bestimmte Mindesthöhe aufweisen, um deren Funktion als Transportsicherung des Rollenkranzes im Außenring und als Axialführung des Lagerkäfigs noch gerecht zu werden. In practice, however, it has been shown that the known roller sleeves are not suitable for high-speed applications, such as in e-mobility, since they have high friction combined with high heat generation, which puts a strain on all bearing components. So-called splashing losses due to the lubricating oil in the roller sleeve were found to be the cause of the majority of the friction, which is caused by the fact that the lubricating oil is accelerated outwards by the acting centrifugal force at high speeds of the roller and cage assembly and collects in the outer ring. The amount of lubricating oil that is in the outer ring and no longer drains away becomes so high at a certain point in time that it impedes the rotation of the roller and cage assembly and thus causes the aforementioned friction or heat generation. In order to reduce the amount of lubricating oil that accumulates in the outer ring, it is possible to reduce the height of the radial ribs, but these ribs must have a certain minimum height in order to still be able to fulfill their function of securing the roller and cage assembly in the outer ring during transport and as an axial guide for the bearing cage.
Aufgabe der Erfindung object of the invention
Ausgehend von den dargelegten Nachteilen der Lösungen des bekannten Standes der Technik liegt der Erfindung deshalb die Aufgabe zu Grunde, eine außenringbefestigte Rollenhülse zu konzipieren, bei der die durch im Außenring angestautes Schmieröl verursachten Planschverluste und die dadurch entstehende erhöhte Wärmeentwicklung wirksam vermieden werden. Based on the stated disadvantages of the solutions of the known prior art, the invention is therefore based on the object of designing a roller sleeve fastened to the outer ring, in which the splashing losses caused by lubricating oil accumulated in the outer ring and the resulting increased heat generation are effectively avoided.
Beschreibung der Erfindung Description of the invention
Erfindungsgemäß wird diese Aufgabe bei einer außenringbefestigten Rollenhülse nach dem Oberbegriff des Anspruchs 1 derart gelöst, dass die Käfigstege des Lagerkäfigs über deren gesamte Länge eine den Außendurchmesser der Seitenringe überragende Außenoberfläche aufweisen und in jede dieser Außenoberflächen wenigstens zwei gebogen verlaufende Schmierölführungsnuten eingeformt sind, mit denen ein im Lagerbetrieb im Außenring entstehender Schmierölfluss von einer tangentialen Richtung in eine axiale Richtung umleitbar und durch in beiden Borden des Außenrings angeordnete Ausnehmungen aus der Rollenhülse ableitbar ist. According to the invention, this object is achieved with an outer ring-mounted roller sleeve according to the preamble of claim 1 such that the cage bars of the bearing cage over the entire length of the outer diameter have an outer surface that protrudes beyond the side rings and at least two curved lubricating oil guide grooves are formed in each of these outer surfaces, with which a lubricating oil flow occurring in the outer ring during bearing operation can be redirected from a tangential direction to an axial direction and can be derived from the roller sleeve through recesses arranged in both edges of the outer ring.
Bevorzugte Ausgestaltungen und vorteilhafte Weiterbildungen der erfindungsgemäß ausgebildeten außenringbefestigten Rollenhülse werden in den Unteransprüchen 2 bis 6 beschrieben. Preferred configurations and advantageous developments of the outer ring-mounted roller sleeve designed according to the invention are described in subclaims 2 to 6.
Danach ist es gemäß den Ansprüchen 2 und 3 bei der erfindungsgemäß ausgebildeten außenringbefestigten Rollenhülse vorgesehen, dass bei festgelegter Drehrichtung des Lagerkäfigs jeweils zwei axial nebeneinander angeordnete Schmierölführungsnuten in die Außenoberflächen aller Käfigstege eingeformt sind. Das bedeutet, dass es bei Rollenhülsen, die sich ausschließlich in eine Drehrichtung bewegende Wellen abstützen, ausreicht, jeweils zwei der gebogen verlaufenden Schmierölführungsnuten axial nebeneinander in den Außenoberflächen der Käfigstege anzuordnen. Besonders vorteilhaft ist es, wenn dabei die Eingangsöffnungen der Schmierölführungsnuten in Drehrichtung jeweils in eine Käfigtasche münden, während die Ausgangsöffnungen der Schmierölführungsnuten jeweils in eine der beiden Seitenflächen der Käfigstege münden. Der gebogene Verlauf der Schmierölführungsnuten ermöglicht es somit, den bei Rotation des Rollenkranzes entstehenden tangentialen Schmierölfluss in eine axiale Richtung zu den Ausnehmungen in den Borden des Außenrings umzuleiten. Accordingly, it is provided according to claims 2 and 3 in the case of the outer ring-mounted roller sleeve designed according to the invention that, with a fixed direction of rotation of the bearing cage, two lubricating oil guide grooves arranged axially next to one another are formed in the outer surfaces of all cage bars. This means that in the case of roller sleeves that only support shafts moving in one direction of rotation, it is sufficient to arrange two of the curved lubricating oil guide grooves axially next to one another in the outer surfaces of the cage bars. It is particularly advantageous if the inlet openings of the lubricating oil guide grooves open into a cage pocket in the direction of rotation, while the outlet openings of the lubricating oil guide grooves open out into one of the two side surfaces of the cage bars. The curved shape of the lubricating oil guide grooves thus makes it possible to divert the tangential lubricating oil flow that occurs when the roller and cage assembly rotates in an axial direction to the recesses in the rims of the outer ring.
Als alternative Ausführungsform der erfindungsgemäß ausgebildeten außenringbefestigte Rollenhülse wird es durch die Ansprüche 4 und 5 darüber hinaus vorgeschlagen, dass bei unbestimmter Drehrichtung des Lagerkäfigs jeweils zwei axial nebeneinander angeordnete Paare sich spiegelverkehrt gegenüberliegender Schmierölführungsnuten in die Außenoberflächen aller Käfigstege eingeformt sind. Bei Rollenhülsen, die sich in beide Drehrichtungen bewegende Wellen abstützen, ist es also ähnlich wie bei der zuvor beschriebenen Ausfüh- rungsform erforderlich, für die eine Drehrichtung jeweils zwei der gebogen verlaufenden Schmierölführungsnuten axial nebeneinander in den Außenoberflächen der Käfigstege anzuordnen, denen jedoch für die andere Drehrichtung zwei weitere gebogen verlaufende Schmierölführungsnuten spiegelverkehrt zugeordnet sind. Auch hierbei ist es vorteilhaft, wenn die Eingangsöffnungen der Schmierölführungsnuten jeweils in zwei benachbarte Käfigtaschen münden, während die Ausgangsöffnungen der Schmierölführungsnuten jeweils in eine der beiden Seitenflächen der Käfigstege münden. Die gebogen verlaufenden Schmierölführungsnuten ermöglichen es somit auch hier, den bei Rotation des Rollenkranzes entstehenden tangentialen Schmierölfluss unabhängig von der Drehrichtung des Rollenkranzes in eine axiale Richtung zu den Ausnehmungen in den Borden des Außenrings umzuleiten. As an alternative embodiment of the outer ring-mounted roller sleeve designed according to the invention, it is also proposed by claims 4 and 5 that, with an undefined direction of rotation of the bearing cage, two pairs of mirror-inverted opposite lubricating oil guide grooves are formed in the outer surfaces of all cage bars. In the case of roller sleeves that support shafts moving in both directions of rotation, it is similar to the embodiment described above. tion form required to arrange for one direction of rotation two of the curved lubricating oil guide grooves axially next to each other in the outer surfaces of the cage bars, which, however, are assigned two more curved lubricating oil guide grooves in mirror image for the other direction of rotation. Here, too, it is advantageous if the inlet openings of the lubricating oil guide grooves each open into two adjacent cage pockets, while the outlet openings of the lubricating oil guide grooves open out in each case into one of the two side faces of the cage bars. The curved lubricating oil guide grooves also make it possible here to divert the tangential lubricating oil flow that occurs when the roller and cage assembly rotates, independently of the direction of rotation of the roller and cage assembly, in an axial direction to the recesses in the rims of the outer ring.
Schließlich wird es als vorteilhafte Ausgestaltung der erfindungsgemäß ausgebildeten außenringbefestigten Rollenhülse durch Anspruch 6 noch vorgeschlagen, dass die in den Borden des Außenrings angeordneten Ausnehmungen als auf einem gemeinsamen Teilkreis gleichmäßig umfangsverteilt angeordnete Bohrungen oder Langlöcher oder als in den freien Rand der Borde gleichmäßig umfangsverteilt eingearbeitete Freistellungen mit gleichen Abmessungen ausgebildet sind. Bei Anwendung von Bohrungen oder Langlöchern als Ausnehmungen hat es sich dabei als vorteilhaft erwiesen, dass deren Teilkreis einen größeren Durchmesser als der Außendurchmesser der Seitenringe des Lagerkäfigs aufweist, um den Abfluss des Schmieröls durch die Ausnehmungen nicht durch die Seitenringe des Lagerkäfigs zu behindern. Finally, as an advantageous embodiment of the outer ring-fastened roller sleeve designed according to the invention, it is also proposed by claim 6 that the recesses arranged in the rims of the outer ring should be designed as bores or slots arranged evenly distributed around the circumference on a common reference circle or as exemptions worked into the free edge of the rims evenly distributed around the circumference the same dimensions are formed. When using bores or elongated holes as recesses, it has proven to be advantageous if their pitch circle has a larger diameter than the outer diameter of the side rings of the bearing cage, so that the outflow of the lubricating oil through the recesses is not impeded by the side rings of the bearing cage.
Die erfindungsgemäß ausgebildete außenringbefestigte Rollenhülse weist somit gegenüber den aus dem Stand der Technik bekannten außenringbefestigten Rollenhülsen den Vorteil auf, dass die Menge des sich bei hohen Drehzahlen im Außenring der Rollenhülse fliehkraftbedingt anstauenden Schmieröls durch in die Käfigstege eingeformte Schmierölführungsnuten und durch Ausnehmungen in den Borden des Außenrings gezielt reduziert werden kann. Durch eine solche auch kostengünstig herstellbare Ausbildung wird somit mehr Schmieröl, welches bereits durch Reibung erwärmt wurde, aus dem Außenring herausge- pumpt, so dass kühleres Schmieröl von außerhalb der Rollenhülse nachfließen und deren Wärmeentwicklung reduziert werden kann. Das bedeutet, dass der Schmieröldurchfluss durch die Rollenhülse gesteigert und somit die Wärmeabfuhr aus der Rollenhülse erhöht wird. The outer ring-mounted roller sleeve designed according to the invention thus has the advantage over the outer ring-mounted roller sleeves known from the prior art that the amount of lubricating oil that accumulates at high speeds in the outer ring of the roller sleeve due to centrifugal force is reduced by lubricating oil guide grooves formed in the cage bars and by recesses in the rims of the outer ring can be reduced in a targeted manner. With such a design, which can also be produced inexpensively, more lubricating oil, which has already been heated by friction, is discharged from the outer ring. pumps so that cooler lubricating oil can flow from outside the roller sleeve and its heat generation can be reduced. This means that the flow of lubricating oil through the roller sleeve is increased and thus the heat dissipation from the roller sleeve is increased.
Kurze Beschreibung der Zeichnungen Brief description of the drawings
Eine bevorzugte Ausführungsform der erfindungsgemäß ausgebildeten außenringbefestigten Rollenhülse wird nachfolgend unter Bezugnahme auf die beigefügten Zeichnungen näher erläutert. Dabei zeigen: A preferred embodiment of the outer ring-mounted roller sleeve designed according to the invention is explained in more detail below with reference to the accompanying drawings. show:
Figur 1 eine perspektivische Gesamtansicht einer erfindungsgemäß ausgebildeten außenringbefestigten Rollenhülse; FIG. 1 shows a perspective overall view of a roller sleeve which is designed according to the invention and is fastened to the outer ring;
Figur 2 eine perspektivische Ansicht des Außenrings der erfindungsgemäß ausgebildeten außenringbefestigten Rollenhülse; FIG. 2 shows a perspective view of the outer ring of the roller sleeve fastened to the outer ring according to the invention;
Figur 3 eine perspektivische Ansicht einer ersten Ausführungsform des Lagerkäfigs der erfindungsgemäß ausgebildeten außenringbefestigten Rollenhülse; FIG. 3 shows a perspective view of a first embodiment of the bearing cage of the roller sleeve fastened to the outer ring, designed according to the invention;
Figur 4 eine perspektivische Ansicht einer zweiten Ausführungsform des Lagerkäfigs der erfindungsgemäß ausgebildeten außenringbefestigten Rollenhülse. FIG. 4 shows a perspective view of a second embodiment of the bearing cage of the roller sleeve fastened to the outer ring according to the invention.
Ausführliche Beschreibung der Zeichnungen Detailed description of the drawings
In Figur 1 ist schematisch eine für Hochdrehzahlanwendungen geeignete, außenringbefestigte Rollenhülse 1 dargestellt, welche einen in ein nicht dargestelltes Gehäuse einsetzbaren Außenring 2 und einen in diesen Außenring 2 eingesetzten Rollenkranz 3 umfasst, der, wie in den Figuren 3 und 4 zu sehen ist, durch einen aus zwei Seitenringen 5, 6 und mehreren die Seitenringe 5, 6 miteinander verbindenden Käfigstegen 7 bestehenden Lagerkäfig 4 sowie aus einer Vielzahl in zwischen den Käfigstegen 7 gebildeten Käfigtaschen 8 eingesetzter Rollenwälzkörper 9 gebildet wird, die von dem Lagerkäfig 4 in Umfangsrichtung in gleichmäßigen Abständen gehalten werden und auf einer durch die Innenmantelfläche des Außenrings 2 gebildeten und in Figur 2 sichtbaren Außenlaufbahn 10 abrollen. Die axiale Führung des Rollenkranzes 3 erfolgt dabei durch zwei an den Axialseiten des Außenrings 2 angeordnete Borde 11 , 12, die sich radial nach innen erstrecken und spanlos an den Außenring 2 angeformt sind. 1 shows a schematic representation of a roller sleeve 1 that is suitable for high-speed applications and has an outer ring attached a bearing cage 4 consisting of two side rings 5, 6 and a plurality of cage bars 7 connecting the side rings 5, 6 to one another, and of a plurality roller bodies 9 inserted in cage pockets 8 formed between the cage bars 7, which are held at regular intervals by the bearing cage 4 in the circumferential direction and roll on an outer raceway 10 formed by the inner lateral surface of the outer ring 2 and visible in FIG. The roller and cage assembly 3 is axially guided by two flanges 11, 12 arranged on the axial sides of the outer ring 2, which extend radially inward and are formed onto the outer ring 2 without cutting.
Aus den Figuren 3 und 4 geht des Weiteren hervor, dass die Käfigstege 7 des Lagerkäfigs 4 über deren gesamte Länge eine den Außendurchmesser der Seitenringe 5, 6 überragende Außenoberfläche 13 aufweisen und dass in jede dieser Außenoberflächen 13 wenigstens zwei gebogen verlaufende Schmierölführungsnuten 14, 15 eingeformt sind, mit denen ein im Lagerbetrieb im Außenring 2 entstehender Schmierölfluss von einer tangentialen Richtung in eine axiale Richtung umleitbar ist. Der umgeleitete Schmierölfluss wird dann durch mehrere in beiden Borden 11 , 12 des Außenrings 2 angeordnete und in Figur 2 dargestellte Ausnehmungen 16, 17 aus der Rollenhülse 1 abgeleitet, wobei die Ausnehmungen im konkreten Fall als auf einem gemeinsamen Teilkreis gleichmäßig umfangsverteilt angeordnete Bohrungen ausgebildet sind. Figures 3 and 4 also show that the cage bars 7 of the bearing cage 4 have an outer surface 13 that projects beyond the outer diameter of the side rings 5, 6 over their entire length and that at least two curved lubricating oil guide grooves 14, 15 are formed in each of these outer surfaces 13 are, with which a lubricating oil flow occurring in the bearing operation in the outer ring 2 can be diverted from a tangential direction to an axial direction. The diverted flow of lubricating oil is then diverted from the roller sleeve 1 through a plurality of recesses 16, 17 arranged in both rims 11, 12 of the outer ring 2 and shown in FIG.
Durch die in Figur 3 gezeigte erste Ausführungsform des Lagerkäfigs 5 der Rollenhülse 1 wird deutlich, dass bei festgelegter Drehrichtung des Lagerkäfigs 4 jeweils zwei axial nebeneinander angeordnete Schmierölführungsnuten 14, 15 in die Außenoberflächen 13 aller Käfigstege 7 eingeformt sind. Die Eingangsöffnungen 18, 19 der Schmierölführungsnuten 14, 15 münden dabei deutlich sichtbar in Drehrichtung jeweils in eine Käfigtasche 8, während die Ausgangsöffnungen 20, 21 der Schmierölführungsnuten 14, 15 jeweils in eine der beiden Seitenflächen 22, 23 der Käfigstege 7 münden. Durch den gebogenen Verlauf der Schmierölführungsnuten 14, 15 ist es somit möglich, den bei Rotation des Rollenkranzes 3 entstehenden tangentialen Schmierölfluss in eine axiale Richtung zu den Ausnehmungen 16, 17 in den Borden 11 , 12 des Außenrings 2 umzuleiten. In Figur 4 ist darüber hinaus eine zweite Ausführungsform des Lagerkäfigs 5 der Rollenhülse 1 dargestellt, die für Rollenhülsen 1 , die sich in beide Drehrichtungen bewegende Wellen abstützen, geeignet ist. Deutlich sichtbar sind bei dieser Ausführungsform des Lagerkäfigs 4 ähnlich wie bei der ersten Ausführungs- form für die eine Drehrichtung jeweils zwei der gebogen verlaufenden Schmierölführungsnuten 14, 15 axial nebeneinander in den Außenoberflächen 13 der Käfigstege 7 angeordnet, denen jedoch für die andere Drehrichtung zwei weitere gebogen verlaufende Schmierölführungsnuten 14' 15' spiegelverkehrt zugeordnet sind. Dabei münden die Eingangsöffnungen 18, 18‘; 19, 19' der Schmier- ölführungsnuten 14, 14‘; 15, 15' jeweils in zwei benachbarte Käfigtaschen 8, während die Ausgangsöffnungen 19, 19‘; 20, 20' der Schmierölführungsnuten 14, 14‘; 15, 15' jeweils in eine der beiden Seitenflächen 22, 23 der Käfigstege 7 münden. Die gebogen verlaufenden Schmierölführungsnuten 14, 14‘; 15, 15' ermöglichen es dabei auch hier, den bei Rotation des Rollenkranzes 3 entste- henden tangentialen Schmierölfluss unabhängig von der Drehrichtung des Rollenkranzes 3 in eine axiale Richtung zu den Ausnehmungen 16, 17 in den Borden 11 , 12 des Außenrings 2 umzuleiten. The first embodiment of the bearing cage 5 of the roller sleeve 1 shown in FIG. 3 makes it clear that with a fixed direction of rotation of the bearing cage 4, two lubricating oil guide grooves 14, 15 arranged axially next to one another are formed in the outer surfaces 13 of all cage bars 7. The inlet openings 18, 19 of the lubricating oil guide grooves 14, 15 each open into a cage pocket 8 in the direction of rotation, while the outlet openings 20, 21 of the lubricating oil guide grooves 14, 15 each open into one of the two side surfaces 22, 23 of the cage bars 7. The curved shape of the lubricating oil guide grooves 14, 15 makes it possible to divert the tangential lubricating oil flow that occurs when the roller and cage assembly 3 rotates in an axial direction to the recesses 16, 17 in the rims 11, 12 of the outer ring 2. FIG. 4 also shows a second embodiment of the bearing cage 5 of the roller sleeve 1, which is suitable for roller sleeves 1 that support shafts moving in both directions of rotation. In this embodiment of the bearing cage 4, similar to the first embodiment, two of the curved lubricating oil guide grooves 14, 15 are arranged axially next to each other in the outer surfaces 13 of the cage webs 7 for one direction of rotation, but two more are curved for the other direction of rotation running lubricating oil guide grooves 14 '15' are assigned in mirror image. The inlet openings 18, 18'; 19, 19' of the lubricating oil guide grooves 14, 14'; 15, 15' each into two adjacent cage pockets 8, while the exit openings 19, 19'; 20, 20' of the lubricating oil guide grooves 14, 14'; 15, 15' each open into one of the two side faces 22, 23 of the cage bars 7. The curved lubricating oil guide grooves 14, 14'; 15, 15′ also make it possible here to divert the tangential flow of lubricating oil that occurs when the roller ring 3 rotates, independently of the direction of rotation of the roller ring 3, in an axial direction to the recesses 16, 17 in the rims 11, 12 of the outer ring 2.
Bezugszahlenliste indicator list
Rollenhülse reel sleeve
Außenring von 1 outer ring of 1
Rollenkranz von 1 roller assembly from 1
Lagerkäfig von 3 bearing cage of 3
Seitenring von 4 side ring of 4
Seitenring von 4 side ring of 4
Käfigstege von 4 Cage bars from 4
Käfigtaschen in 4 Cage bags in 4
Rollenwälzkörper von 3Roller rolling elements from 3
Außenlaufbahn in 2 Outer track in 2nd
Bord an 2 board on 2
Bord an 2 board on 2
Außenoberfläche von 7outer surface of 7
Schmierölführungsnut in 13 ' Schmierölführungsnut in 13 Lubricating oil guide groove in 13' Lubricating oil guide groove in 13
Schmierölführungsnut in 13 ' Schmierölführungsnut in 13 Lubricating oil guide groove in 13' Lubricating oil guide groove in 13
Ausnehmungen in 11 Recesses in 11
Ausnehmungen in 12 recesses in 12
Eingangsöffnung von 14 ' Eingangsöffnung von 14' 14' Inlet Port 14' Inlet Port
Eingangsöffnung von 15 ' Eingangsöffnung von 15' 15' Inlet Port 15' Inlet Port
Ausgangsöffnung von 14 ' Ausgangsöffnung von 14' 14' Exit Port 14' Exit Port
Ausgangsöffnung von 15 ' Ausgangsöffnung von 15' Exit Port of 15' Exit Port of 15'
Seitenfläche von 7 side face of 7
Seitenfläche von 7 side face of 7

Claims

- 9 - - 9 -
Patentansprüche Außenringbefestigte Rollenhülse (1 ), umfassend einen in ein Gehäuse einsetzbaren Außenring (2) und einen in diesen Außenring (2) eingesetzten Rollenkranz (3), der durch einen aus zwei Seitenringen (5, 6) und mehreren die Seitenringe (5, 6) miteinander verbindenden Käfigstegen (7) bestehenden Lagerkäfig (4) sowie aus einer Vielzahl in zwischen den Käfigstegen (7) gebildeten Käfigtaschen (8) eingesetzter Rollenwälzkörper (9) gebildet wird, die von dem Lagerkäfig (4) in Umfangsrichtung in gleichmäßigen Abständen gehalten werden und auf einer durch die Innenmantelfläche des Außenrings (2) gebildeten Außenlaufbahn (10) abrollen, wobei die axiale Führung des Rollenkranzes (3) durch zwei an den Axialseiten des Außenrings (2) angeordnete und sich radial nach innen erstreckende Borde (11 , 12) erfolgt, dadurch gekennzeichnet, dass die Käfigstege (7) des Lagerkäfigs (4) über deren gesamte Länge eine den Außendurchmesser der Seitenringe (5, 6) überragende Außenoberfläche (13) aufweisen und in jede dieser Außenoberflächen (13) wenigstens zwei gebogen verlaufende Schmierölführungsnuten (14, 15) eingeformt sind, mit denen ein im Lagerbetrieb im Außenring (2) entstehender Schmierölfluss von einer tangentialen Richtung in eine axiale Richtung umleitbar und durch in beiden Borden (11 , 12) des Außenrings (2) angeordnete Ausnehmungen (16, 17) aus der Rollenhülse (1 ) ableitbar ist. Außenringbefestigte Rollenhülse (1 ) nach Anspruch 1 , dadurch gekennzeichnet, dass bei festgelegter Drehrichtung des Lagerkäfigs (4) jeweils zwei axial nebeneinander angeordnete Schmierölführungsnuten (14, 15) in die Außenoberflächen (13) aller Käfigstege (7) eingeformt sind. Außenringbefestigte Rollenhülse (1 ) nach Anspruch 2, dadurch gekennzeichnet, dass die Eingangsöffnungen (18, 19) der Schmierölführungsnuten (14, 15) in Drehrichtung jeweils in eine Käfigtasche (8) münden, während die Ausgangsöffnungen (20, 21 ) der Schmierölführungsnuten (14, 15) jeweils in eine der beiden Seitenflächen (22, 23) der Käfigstege (7) münden. Außenringbefestigte Rollenhülse (1) nach Anspruch 1 , dadurch gekennzeichnet, dass bei unbestimmter Drehrichtung des Lagerkäfigs (4) jeweils zwei axial nebeneinander angeordnete Paare sich spiegelverkehrt gegenüberliegender Schmierölführungsnuten (14, 14‘; 15, 15‘) in die Außenober- flächen (13) aller Käfigstege (7) eingeformt sind. Außenringbefestigte Rollenhülse (1) nach Anspruch 4, dadurch gekennzeichnet, dass die Eingangsöffnungen (18, 18‘; 19, 19‘) der Schmierölführungsnuten (14, 14‘; 15, 15‘) jeweils in zwei benachbarte Käfigtaschen (8) münden, während die Ausgangsöffnungen (19, 19‘; 20, 20‘) der Schmierölführungsnuten (14, 14‘; 15, 15‘) jeweils in eine der beiden Seitenflächen (22, 23) der Käfigstege (7) münden. Außenringbefestigte Rollenhülse (1) nach Anspruch 1 , dadurch gekenn- zeichnet, dass die in den Borden (11 , 12) des Außenrings (2) angeordneten Ausnehmungen (16) als auf einem gemeinsamen Teilkreis gleichmäßig umfangsverteilt angeordnete Bohrungen oder Langlöcher oder als in den freien Rand der Borde (11 , 12) gleichmäßig umfangsverteilt eingearbeitete Freistellungen mit gleichen Abmessungen ausgebildet sind. Patent claims Roller sleeve (1) fastened to the outer ring, comprising an outer ring (2) that can be inserted into a housing and a roller ring (3) that is inserted into this outer ring (2) and is formed by one of two side rings (5, 6) and several of the side rings (5, 6 ) connecting cage webs (7) existing bearing cage (4) and from a large number of roller bodies (9) inserted in cage pockets (8) formed between the cage webs (7), which are held by the bearing cage (4) at regular intervals in the circumferential direction and roll on an outer track (10) formed by the inner lateral surface of the outer ring (2), the axial guidance of the roller and cage assembly (3) being provided by two flanges (11, 12) which are arranged on the axial sides of the outer ring (2) and extend radially inwards. takes place, characterized in that the cage webs (7) of the bearing cage (4) have an outer surface (13) projecting beyond the outer diameter of the side rings (5, 6) over their entire length and in each of these outer surfaces (13) at least two curved lubricating oil guide grooves (14, 15) are formed, with which a lubricating oil flow occurring in the outer ring (2) during bearing operation can be diverted from a tangential direction into an axial direction and through both flanges (11 , 12) of the outer ring (2) arranged recesses (16, 17) from the roller sleeve (1) can be derived. Outer ring-mounted roller sleeve (1) according to claim 1, characterized in that with a fixed direction of rotation of the bearing cage (4), two lubricating oil guide grooves (14, 15) arranged axially next to one another are formed in the outer surfaces (13) of all cage bars (7). Roller sleeve (1) fastened to the outer ring, according to Claim 2, characterized in that the inlet openings (18, 19) of the lubricating oil guide grooves (14, 15) each open into a cage pocket (8) in the direction of rotation, while the outlet openings (20, 21) of the lubricating oil guide grooves (14 , 15) each open into one of the two side faces (22, 23) of the cage bars (7). Outer ring-mounted roller sleeve (1) according to claim 1, characterized in that with an indeterminate direction of rotation of the bearing cage (4), two pairs of lubricating oil guide grooves (14, 14'; 15, 15') opposite one another and arranged axially next to one another are cut into the outer surfaces (13) in a mirror-inverted manner. all cage bars (7) are moulded. Outer ring-mounted roller sleeve (1) according to Claim 4, characterized in that the inlet openings (18, 18'; 19, 19') of the lubricating oil guide grooves (14, 14'; 15, 15') each open into two adjacent cage pockets (8), while the outlet openings (19, 19'; 20, 20') of the lubricating oil guide grooves (14, 14'; 15, 15') each open into one of the two side faces (22, 23) of the cage bars (7). Outer ring-mounted roller sleeve (1) according to claim 1, characterized in that in the rims (11, 12) of the outer ring (2) arranged recesses (16) as on a common pitch circle evenly circumferentially distributed arranged bores or slots or as in the free Edge of the rims (11, 12) evenly circumferentially incorporated exemptions are formed with the same dimensions.
PCT/DE2021/100768 2020-11-10 2021-09-20 Outer-ring-fastened roller sleeve WO2022100776A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115013441A (en) * 2022-06-06 2022-09-06 北京理工大学 Enhanced-lubrication double-layer high-strength low-friction retainer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022113789A1 (en) 2022-06-01 2023-12-07 Schaeffler Technologies AG & Co. KG roller bearing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9400643U1 (en) * 1994-01-15 1994-03-03 Schaeffler Waelzlager Kg Sleeve bearing
JPH08177869A (en) * 1994-12-28 1996-07-12 Ntn Corp Bearing lubricating structure
DE19513668A1 (en) 1995-04-11 1996-10-17 Schaeffler Waelzlager Kg Needle roller bearing and method for its prodn.
US20060120646A1 (en) * 2004-12-03 2006-06-08 Toyota Jidosha Kabushiki Kaisha Bearing, bearing mechanism, and plunger pump
JP2010031967A (en) * 2008-07-29 2010-02-12 Toyota Motor Corp Roller bearing
DE102017120761A1 (en) 2017-09-08 2018-10-11 Schaeffler Technologies AG & Co. KG Rolling bearing for supporting a transmission shaft of a motor vehicle transmission

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007270948A (en) 2006-03-31 2007-10-18 Jtekt Corp Divided roller bearing
CN103998798A (en) 2011-12-13 2014-08-20 美国光洋轴承有限责任公司 Bearing outer race
JP5973236B2 (en) 2012-05-28 2016-08-23 ナブテスコ株式会社 Eccentric oscillating gear unit
JP2018132115A (en) 2017-02-15 2018-08-23 株式会社ジェイテクト Radial roller bearing
DE102017114487A1 (en) 2017-06-29 2018-08-23 Schaeffler Technologies AG & Co. KG Planetary gear with lubrication grooves in the rolling bearing cage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9400643U1 (en) * 1994-01-15 1994-03-03 Schaeffler Waelzlager Kg Sleeve bearing
JPH08177869A (en) * 1994-12-28 1996-07-12 Ntn Corp Bearing lubricating structure
DE19513668A1 (en) 1995-04-11 1996-10-17 Schaeffler Waelzlager Kg Needle roller bearing and method for its prodn.
US20060120646A1 (en) * 2004-12-03 2006-06-08 Toyota Jidosha Kabushiki Kaisha Bearing, bearing mechanism, and plunger pump
JP2010031967A (en) * 2008-07-29 2010-02-12 Toyota Motor Corp Roller bearing
DE102017120761A1 (en) 2017-09-08 2018-10-11 Schaeffler Technologies AG & Co. KG Rolling bearing for supporting a transmission shaft of a motor vehicle transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115013441A (en) * 2022-06-06 2022-09-06 北京理工大学 Enhanced-lubrication double-layer high-strength low-friction retainer

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