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FR2646690A1 - Rolling-contact bearing, particularly roller bearing - Google Patents

Rolling-contact bearing, particularly roller bearing Download PDF

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Publication number
FR2646690A1
FR2646690A1 FR9005548A FR9005548A FR2646690A1 FR 2646690 A1 FR2646690 A1 FR 2646690A1 FR 9005548 A FR9005548 A FR 9005548A FR 9005548 A FR9005548 A FR 9005548A FR 2646690 A1 FR2646690 A1 FR 2646690A1
Authority
FR
France
Prior art keywords
grooves
rolling bearing
bearing
inner ring
rolling
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.)
Granted
Application number
FR9005548A
Other languages
French (fr)
Other versions
FR2646690B1 (en
Inventor
Bernhard Bauer
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.)
SKF GmbH
Original Assignee
SKF GmbH
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 SKF GmbH filed Critical SKF GmbH
Publication of FR2646690A1 publication Critical patent/FR2646690A1/en
Application granted granted Critical
Publication of FR2646690B1 publication Critical patent/FR2646690B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • 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
    • F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/6677—Details of supply of the liquid to the bearing, e.g. passages or nozzles from radial inside, e.g. via a passage through the shaft and/or inner ring

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

Abstract

Rolling-contact bearing, particularly roller bearing, comprising lubrication grooves or the like made at least on one front surface arranged substantially perpendicularly to the axis of the bearing. The rolling-contact bearing includes radial grooves 9 which, starting from the lateral surface 11 of the shoulder 4 or the like, include base surfaces 12 inclined at an angle a with respect to the front face 7 of the inner race 3 and which extend as far as an abutment surface 8 where they become radial grooves 10 in which a radial boss and two neighbouring hollows are respectively arranged.

Description

PALIER A ROULEMENT, EN PARTICULIER PALIER A ROULEAUX
La présente invention se rapporte à un palier à roulement, en particulier à un palier à rouleaux, conçu pour encaisser des efforts axiaux supplémentaires et comprenant une bague extérieure et/ou une bague intérieure munies d'épaulements ou analogues et des rainures de graissage ou analogues pratiquées au moins sur une surface frontale disposée sensiblement perpendiculairement à l'axe du palier.ROLLING BEARING, PARTICULARLY ROLLER BEARING
The present invention relates to a rolling bearing, in particular to a roller bearing, designed to withstand additional axial forces and comprising an outer ring and / or an inner ring provided with shoulders or the like and lubrication grooves or the like practiced at least on a front surface disposed substantially perpendicular to the axis of the bearing.

Par le modèle d'utilité allemand 7 107 931,on connait déjà un palier à roulement qui est muni de rainures spirales sur une surface frontale. La fabrication de ces rainures est relativement onéreuse. By the German utility model 7 107 931, there is already known a rolling bearing which is provided with spiral grooves on a front surface. The manufacture of these grooves is relatively expensive.

L'invention a pour objet de mettre au point un palier à roulement du type précité dont la surface de butée soit munie de rainures de graissage pouvant être fabriquées de façon simple et en partie utilisées également pour l'extraction des bagues du roulement. The object of the invention is to develop a rolling bearing of the aforementioned type, the abutment surface of which is provided with lubrication grooves which can be produced in a simple manner and partly also used for extracting the rings from the bearing.

Ce résultat est atteint selon l'invention par le fait qutil est prévu des rainures radiales qui, partant de la surface de l'alésage ou de la surface latérale des épaulements ou analogues, comportent des surfaces de base inclinées sous un angle par rapport à la face frontale de la bague intérieure et/ou de la bague extérieure et qui s'étendent jusqu a une surface de butée où elles se transforment en rainures radiales dans lesquelles sont respectivement disposés une bosse radiale et deux creux voisins. Grâce à l'aménagement et à la conception de ces rainures, on assure un bon graissage de la surface de butée et un démontage facile de l'élément de palier. This result is achieved according to the invention by the fact thatthere are provided radial grooves which, starting from the surface of the bore or from the lateral surface of the shoulders or the like, comprise base surfaces inclined at an angle to the front face of the inner ring and / or the outer ring and which extend up to a stop surface where they are transformed into radial grooves in which are respectively arranged a radial boss and two neighboring recesses. Thanks to the arrangement and design of these grooves, good lubrication of the abutment surface and easy disassembly of the bearing element are ensured.

Selon une autre caractéristique de l'invention, la profondeur de la rainure dans la surface de butée est choisie de manière que la bosse ne fasse pas saillie axialement en-dehors de la surface de butée de la bague intérieure et/ou de la bague extérieure. On arrive ainsi à ce que l'élément de machine appuyant axialement se trouve parfaitement appliqué sur la surface de butée. According to another characteristic of the invention, the depth of the groove in the abutment surface is chosen so that the boss does not protrude axially outside the abutment surface of the inner ring and / or the outer ring . This results in the axially pressing machine element being perfectly applied to the abutment surface.

L'invention sera mieux comprise à l'aide de la description d'un mode de réalisation pris comme exemple, mais non limitatif, et illustré par le dessin annexé, sur lequel
la Figure l représente une vue en coupe d'un roulement à rouleaux cylindriques selon l'invention
la Figure 2 est une vue latérale à partir de la droite de la bague intérieure, représentée à la Figure 1, munie de rainures plates qui au début sont disposées sur toute la largeur de la surface frontale
la Figure 3 est une coupe suivant A-B de la Figure 2
la Figure 4 représente une partie de la bague intérieure avec une rainure disposée dans la surface frontale de l'épaulement de la bague intérieure
la Figure 5 est une vue en plan de la rainure représentée à la Figure 4.The invention will be better understood using the description of an embodiment taken as an example, but not limiting, and illustrated by the appended drawing, in which
Figure l shows a sectional view of a cylindrical roller bearing according to the invention
Figure 2 is a side view from the right of the inner ring, shown in Figure 1, provided with flat grooves which at the start are arranged over the entire width of the front surface
Figure 3 is a section along AB of Figure 2
Figure 4 shows part of the inner ring with a groove disposed in the front surface of the shoulder of the inner ring
Figure 5 is a plan view of the groove shown in Figure 4.

A la Figure 1,on a représenté un roulement à rouleaux cylindriques qui est constitué par une bague extérieure 1 munie de deux épaulements 2 dirigés radialement vers l'intérieur, par une bague intérieure 3 munie d'un épaulement 4 dirigé radialement vers l'extérieur et par les rouleaux cylindriques 6 guidés dans une cage en tôle 5. Sur l'une de ses faces frontales 7, la bague intérieure 3 comporte une surface de butée 8 de largeur C et deux rainures profondes 9 diamétralement opposées qui se transforment en rainures radiales plates 10 de section transversale en forme de segment de cercle. On usine tout d'abord les rainures plates 10 qui s'étendent initialement sur toute la largeur de la surface frontale 7 (Figure 2).Partant de la surface latérale 11 de l'épaulement 4, on effectue ensuite dans la zone des rainures plates 10 1'estampage des rainures profondes 9 qui présentent des surfaces de base 12 inclinées sous un angle a par rapport à la surface frontale 7 de la bague intérieure 3 et qui s'étendent jusqu'à la surface de butée 8. Pour que le lubrifiant puisse mieux s'écouler dans la rainure, il est avantageux de munir les surfaces latérales d'un chanfrein 13 (Figure 5). Lors de l'estampage des rainures de graissage 9, le matériau de la bague intérieure 3 se bombe dans la rainure plate dans la zone de la surface de butée 8 en une bosse radiale 14 qui se transforme en un creux 15 des deux côtés.La bosse 14 ne fait pas saillie axialement en-dehors de la surface de butée 8 de la bague intérieure, Si bien que l'élément de machine à monter (non représenté) vient s'appliquer intimement sur la surface de butée 8. In Figure 1, there is shown a cylindrical roller bearing which is constituted by an outer ring 1 provided with two shoulders 2 directed radially inwards, by an inner ring 3 provided with a shoulder 4 directed radially outwards and by the cylindrical rollers 6 guided in a sheet metal cage 5. On one of its front faces 7, the inner ring 3 has an abutment surface 8 of width C and two deep diametrically opposed grooves 9 which are transformed into radial grooves plates 10 of cross section in the shape of a circle segment. The flat grooves 10 which initially extend over the entire width of the front surface 7 (FIG. 2) are first machined. Starting from the lateral surface 11 of the shoulder 4, then the flat grooves are made 10 the embossing of the deep grooves 9 which have base surfaces 12 inclined at an angle a with respect to the front surface 7 of the inner ring 3 and which extend to the abutment surface 8. So that the lubricant can flow better in the groove, it is advantageous to provide the lateral surfaces with a chamfer 13 (Figure 5). When stamping the lubrication grooves 9, the material of the inner ring 3 bulges in the flat groove in the region of the abutment surface 8 into a radial boss 14 which turns into a hollow 15 on both sides. boss 14 does not protrude axially outside the abutment surface 8 of the inner ring, so that the mounting machine element (not shown) is applied intimately to the abutment surface 8.

Le lubrifiant, s'écoulant dans la fente 16 entre les épaulements 2, 4 de la bague extérieure 1 et de la bague intérieure 3, pénètre dans les rainures 9 et parvient alors dans les creux 15 des rainures plates 10. De là 1il est réparti sur les surfaces de glissement par l'élément de machine en fonctionnement (non représenté). The lubricant, flowing in the slot 16 between the shoulders 2, 4 of the outer ring 1 and the inner ring 3, enters the grooves 9 and then reaches the hollows 15 of the flat grooves 10. From there 1 it is distributed on the sliding surfaces by the machine element in operation (not shown).

L'invention n'est pas limitée à l'exemple représenté. Ainsi1 par exemplelil est possible de prévoir les rainures 9, 10 sur la bague extérieure 1, sur une rondelle de butée (non représentée) ou analogue. Par ail leurs, l'agencement selon l'invention peut être utilisé non seulement pour les roulements à rouleaux, mais aussi pour d'autres types de paliers.  The invention is not limited to the example shown. Thus1 for example it is possible to provide the grooves 9, 10 on the outer ring 1, on a thrust washer (not shown) or the like. Furthermore, the arrangement according to the invention can be used not only for roller bearings, but also for other types of bearings.

Claims (5)

RevendicationsClaims 1. Palier à roulement, en particulier palier à rouleaux, conçu pour encaisser des efforts axiaux supplémentaires et comprenant une bague extérieure et/ou une bague intérieure munies d'épaulements ou analogues et des rainures de graissage ou analogues pratiquées au moins sur une surface frontale disposée sensiblement perpendiculairement à 11 axe du palier, caractérisé par le fait qu'il est prévu des rainures radiales (9) qui, partant de la surface de l'alésage ou de la surface latérale (11) des épaulements (2, 4) ou analogues, comportent des surfaces de base (12) inclinées sous un angle a par rapport à la face frontale (7) de la bague intérieure (3) et/ou de la bague extérieure (1) et qui s'étendent jusqu a une surface de butée (8) où elles se transforment en rainures radiales (10) dans lesquelles sont respectivement disposés une bosse radiale (14) et deux creux voisins (15). 1. Rolling bearing, in particular roller bearing, designed to withstand additional axial forces and comprising an outer ring and / or an inner ring provided with shoulders or the like and lubrication grooves or the like made at least on a front surface arranged substantially perpendicular to the axis of the bearing, characterized in that there are provided radial grooves (9) which, starting from the surface of the bore or from the lateral surface (11) of the shoulders (2, 4) or similar, have base surfaces (12) inclined at an angle a with respect to the front face (7) of the inner ring (3) and / or the outer ring (1) and which extend to a surface stop (8) where they are transformed into radial grooves (10) in which are respectively arranged a radial boss (14) and two neighboring recesses (15). 2. Palier à roulement selon la revendication 1, caractérisé par le fait que les rainures (10) dans la surface de butée (8) sont réalisées plates par rapport aux rainures (9) des épaulements (2, 4). 2. Rolling bearing according to claim 1, characterized in that the grooves (10) in the abutment surface (8) are made flat relative to the grooves (9) of the shoulders (2, 4). 3. Palier à roulement selon la revendication 1 ou 2, caractérisé par le fait que les rainures (10) ont une section transversale en forme de segment de cercle. 3. Rolling bearing according to claim 1 or 2, characterized in that the grooves (10) have a cross section in the form of a segment of a circle. 4. Palier à roulement selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que la bosse (14) est disposée axialement sans faire saillie en-dehors de la surface de butée (8) de la bague intérieure (3) et/ou de la bague extérieure (1). 4. Rolling bearing according to any one of claims 1 to 3, characterized in that the boss (14) is arranged axially without protruding outside the abutment surface (8) of the inner ring (3) and / or the outer ring (1). 5. Palier à roulement selon l'une quelconque des revendications 1 à 4, caractérisé par le fait que les -surfaces latérales (13) de la rainure (9) sont disposées obliquement.  5. Rolling bearing according to any one of claims 1 to 4, characterized in that the side -surfaces (13) of the groove (9) are arranged obliquely.
FR909005548A 1989-05-03 1990-05-02 ROLLING BEARING, PARTICULARLY ROLLER BEARING Expired - Fee Related FR2646690B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8905549U DE8905549U1 (en) 1989-05-03 1989-05-03 Rolling bearings, especially radial roller bearings

Publications (2)

Publication Number Publication Date
FR2646690A1 true FR2646690A1 (en) 1990-11-09
FR2646690B1 FR2646690B1 (en) 1993-04-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR909005548A Expired - Fee Related FR2646690B1 (en) 1989-05-03 1990-05-02 ROLLING BEARING, PARTICULARLY ROLLER BEARING

Country Status (4)

Country Link
JP (1) JPH02296011A (en)
DE (1) DE8905549U1 (en)
FR (1) FR2646690B1 (en)
IT (1) IT9067317A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2760807A1 (en) * 1997-03-11 1998-09-18 Skf Gmbh BEARING WITH FOUR ROWS OF CONICAL ROLLERS, PARTICULARLY FOR ROLLING CAGE WORKING CYLINDERS

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241014A1 (en) * 1992-12-05 1994-06-09 Schaeffler Waelzlager Kg Axial bearing for machinery - has slide cushion between slide face and circumferential face of cage forming lubricant-filled gap.
DE10256086A1 (en) * 2002-11-29 2004-06-17 Leybold Vakuum Gmbh Ball bearings and a vacuum pump equipped with this type of bearing
DE10344804B4 (en) * 2003-09-26 2006-11-30 Aktiebolaget Skf pivot bearing
BRPI0601957A (en) * 2005-06-02 2007-02-21 Denso Corp constant speed compressor and gasket
DE102006057450A1 (en) * 2006-12-06 2008-06-12 Schaeffler Kg Shaft bearing for eccentric drive in a radial piston engine incorporates channels between outer periphery and shaft aperture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB711075A (en) * 1951-12-21 1954-06-23 Glacier Co Ltd Improvements in and method of producing thrust washers or like thrust bearings
FR2127941A5 (en) * 1971-03-03 1972-10-13 Skf Ind Trading & Dev
EP0007223A1 (en) * 1978-07-13 1980-01-23 The Torrington Company Improvements in or relating to roller bearings
DE3140017A1 (en) * 1981-10-08 1983-04-28 Flender A F Gmbh Co Kg Hydrodynamic sliding-contact thrust bearing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB711075A (en) * 1951-12-21 1954-06-23 Glacier Co Ltd Improvements in and method of producing thrust washers or like thrust bearings
FR2127941A5 (en) * 1971-03-03 1972-10-13 Skf Ind Trading & Dev
EP0007223A1 (en) * 1978-07-13 1980-01-23 The Torrington Company Improvements in or relating to roller bearings
DE3140017A1 (en) * 1981-10-08 1983-04-28 Flender A F Gmbh Co Kg Hydrodynamic sliding-contact thrust bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2760807A1 (en) * 1997-03-11 1998-09-18 Skf Gmbh BEARING WITH FOUR ROWS OF CONICAL ROLLERS, PARTICULARLY FOR ROLLING CAGE WORKING CYLINDERS

Also Published As

Publication number Publication date
IT9067317A0 (en) 1990-04-27
IT9067317A1 (en) 1990-11-04
DE8905549U1 (en) 1989-06-15
FR2646690B1 (en) 1993-04-23
JPH02296011A (en) 1990-12-06

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