FR2734327A1 - ROLLING BEARING, ESPECIALLY BALL BEARING - Google Patents
ROLLING BEARING, ESPECIALLY BALL BEARING Download PDFInfo
- Publication number
- FR2734327A1 FR2734327A1 FR9604944A FR9604944A FR2734327A1 FR 2734327 A1 FR2734327 A1 FR 2734327A1 FR 9604944 A FR9604944 A FR 9604944A FR 9604944 A FR9604944 A FR 9604944A FR 2734327 A1 FR2734327 A1 FR 2734327A1
- Authority
- FR
- France
- Prior art keywords
- bearing
- rolling
- peripheral
- ring
- rolling bearing
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/06—Ball or roller bearings
- F16C25/08—Ball or roller bearings self-adjusting
- F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
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- 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
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
- F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
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- 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
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
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- 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
- F16C33/581—Raceways; Race rings integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
-
- 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
Abstract
Pour obtenir, par des moyens simples, qu'un palier à roulement, en particulier un roulement à billes à contact oblique, comportant un élément élastique intégré sur une bague de palier, puisse compenser des dilatations thermiques qui se produiraient, sans qu'il se produise des précontraintes élevées inadmissibles, et qu'il puisse également reprendre élastiquement d'éventuels efforts dus à des percussions malgré une grande rigidité, on propose qu'une bague de roulement (4) soit réalisée avec un élargissement et qu'elle soit prévue, dans la zone (5) de cet élargissement, avec au moins deux rangées d'entailles périphériques, de préférence des trous allongés (6), disposées décalées l'une par rapport à l'autre suivant la direction périphérique.To obtain, by simple means, that a rolling bearing, in particular an angular contact ball bearing, comprising an elastic element integrated on a bearing ring, can compensate for thermal expansions which would occur, without it being produce unacceptable high pre-stresses, and that it can also elastically take up any forces due to percussions despite great rigidity, it is proposed that a rolling ring (4) be made with an enlargement and that it be provided, in the zone (5) of this widening, with at least two rows of peripheral notches, preferably elongated holes (6), arranged offset with respect to one another in the peripheral direction.
Description
L'invention concerne un palier à roulement, en particulier un roulement àThe invention relates to a rolling bearing, in particular a rolling bearing.
billes à contact oblique, comportant un élément élastique intégré à une bague de angular contact balls, comprising an elastic element integrated in a ring
palier pour diminuer la tolérance de la précontrainte. level to decrease the tolerance of the prestress.
Les paliers à roulement, en particulier les roulements à billes à contact oblique, sont, dans beaucoup de cas, montés en contre-appui l'un contre l'autre avec une certaine précontrainte, par exemple pour obtenir une précision élevée du guidage de l'arbre, ou éviter un glissement indésirable d'une corps de roulement si, en fonctionnement, les paliers devaient tourner au moins par instant, avec une charge insuffisante. Dans le cas de paliers montés dans des carters rigides, les tolérances des pièces de remplacement et la dilatation thermique des pièces ont, à cause de la rigidité axiale élevée des paliers à roulement, une influence importante sur la valeur de la force de précontrainte, de telle façon que le domaine souhaité ne peut pas être garanti. Du fait d'influences difficiles à contrôler, comme des modifications de température, un montage imparfait, ou des tolérances de montage, la force de précontrainte peut augmenter fortement Rolling bearings, in particular angular contact ball bearings, are in many cases mounted against each other with a certain prestress, for example to obtain a high precision of the guide of the 'shaft, or avoid an undesirable sliding of a rolling body if, in operation, the bearings were to rotate at least instantaneously, with insufficient load. In the case of bearings mounted in rigid housings, the tolerances of the replacement parts and the thermal expansion of the parts have, due to the high axial rigidity of the rolling bearings, a significant influence on the value of the prestressing force, so that the desired domain cannot be guaranteed. Due to influences that are difficult to control, such as temperature changes, imperfect mounting, or mounting tolerances, the prestressing force can increase significantly
et conduire, de ce fait, à la défaillance du palier. and thereby lead to failure of the bearing.
A partir de la demande de brevet DE 17 75 307 Ai, on connait un roulement à billes à contact oblique, qui présente une bride, disposée sur une bague de roulement, et qui est réalisée élastique. Pour cela, la bride radiale est disposée, par rapport à l'axe du palier, sous un angle inférieur à 90 . Mais un tel palier nécessite radialement From patent application DE 17 75 307 Ai, an angular contact ball bearing is known, which has a flange, disposed on a bearing ring, and which is made elastic. For this, the radial flange is arranged, relative to the axis of the bearing, at an angle less than 90. But such a bearing requires radially
un espace supplémentaire, dont on ne dispose pas toujours. additional space, which is not always available.
Il est également connu de maintenir dans une étroite zone de tolérance la force de précontrainte en disposant des éléments formant ressort entre palier et carter. Ces pièces supplémentaires rendent toutefois plus difficiles et plus chers le montage et la tenue du palier. De plus, dans beaucoup de cas, la rigidité élastique, par exemple avec le montage de ressorts intercalaires, n'est pas assez élevée. Le but de l'invention est donc d'améliorer un palier du type décrit au début, de telle façon que, sans pièces supplémentaires, et avec un espace d'implantation faible radialement et axialement, il puisse compenser des tolérances données et des dilatations thermiques qui se produiraient, sans en arriver à des précontraintes élevées inadmissibles et de telle façon qu'il puisse également reprendre élastiquement d'éventuels efforts de percussion malgré une grande rigidité. De plus, la rigidité du palier par rapport à un couple, c'est-à-dire la résistance au basculement de l'arbre dans le carter, ne doit pas être It is also known to keep the prestressing force in a narrow tolerance zone by having spring elements between the bearing and the casing. These additional parts however make it more difficult and more expensive to assemble and maintain the bearing. In addition, in many cases, the elastic rigidity, for example with the fitting of intermediate springs, is not high enough. The object of the invention is therefore to improve a bearing of the type described at the start, in such a way that, without additional parts, and with a small installation space radially and axially, it can compensate for given tolerances and thermal expansions. which would occur, without arriving at inadmissible high prestresses and in such a way that it can also elastically resume possible percussion efforts despite great rigidity. In addition, the rigidity of the bearing with respect to a torque, that is to say the resistance to tilting of the shaft in the housing, must not be
influencée de façon défavorable.adversely influenced.
Ce problème est résolu selon l'invention en prévoyant qu'une bague de roulement est réalisée avec un élargissement et est formée, dans cette zone, avec au moins deux rangées d'entailles périphériques, qui sont disposées décalées l'une par rapport à l'autre suivant la direction périphérique. Avantageusement, les entailles périphériques sont This problem is solved according to the invention by providing that a rolling ring is produced with an enlargement and is formed, in this zone, with at least two rows of peripheral notches, which are arranged offset one with respect to the 'other following the peripheral direction. Advantageously, the peripheral cuts are
réalisées sous la forme d'un trou allongé. made in the form of an elongated hole.
De préférence, dans ce cas, les entailles périphériques sont disposées sur la bague de roulement extérieure. De préférence aussi, les entretoises qui sont situées entre deux entailles périphériques, de l'une des rangées, se trouvent sensiblement au milieu d'une entaille périphérique de la rangée voisine et procurent ainsi un Preferably, in this case, the peripheral notches are arranged on the outer bearing ring. Preferably also, the spacers which are located between two peripheral notches, of one of the rows, are located substantially in the middle of a peripheral notch of the adjacent row and thus provide a
montage élastique formant ressort.elastic mounting forming a spring.
L'invention permet un montage convenable sur palier, comportant une excellente résistance à un couple, sans exiger des tolérances extrêmement étroites des pièce constitutives. Elle réunit les avantages procurés par l'élasticité d'une disposition formant ressort à la simplicité d'une disposition rigide. L'élément élastique procure une rigidité régulière sur sa périphérie, comme des rondelles Belleville, mais avec une section faible. La réalisation des entailles périphériques sous la forme d'un trou allongé, avec des extrémités arrondies des encoches, procure, du point de vue solidité, une répartition favorable des forces. La disposition des entailles périphériques sur la bague extérieure du roulement présente l'avantage que le nombre des pièces, le volume The invention allows suitable mounting on a bearing, with excellent resistance to torque, without requiring extremely narrow tolerances of the component parts. It combines the advantages provided by the elasticity of a spring arrangement with the simplicity of a rigid arrangement. The elastic element provides regular rigidity on its periphery, like Belleville washers, but with a small section. The realization of the peripheral notches in the form of an elongated hole, with rounded ends of the notches, provides, from the point of view of solidity, a favorable distribution of the forces. The arrangement of the peripheral notches on the outer ring of the bearing has the advantage that the number of parts, the volume
d'implantation, et la somme des tolérances, sont minimisés. layout, and the sum of tolerances, are minimized.
On décrira ci-après plus en détail l'invention sur un exemple d'exécution, en référence au dessin, sur lequel: La figure 1 est une demi-coupe d'un roulement à billes The invention will be described below in more detail on an exemplary embodiment, with reference to the drawing, in which: FIG. 1 is a half-section of a ball bearing
à contact oblique selon l'invention. with angular contact according to the invention.
La figure 2 est une vue partielle de côté de la bague extérieure du roulement, suivant la ligne de coupe A-A de Figure 2 is a partial side view of the outer ring of the bearing, along the section line A-A of
la figure 1.Figure 1.
Sur la figure 1, on a désigné par 1 la bague intérieure, par 2 les billes, par 3 la cage et par 4 la bague extérieure. Selon l'invention, la bague extérieure 4 est réalisée élargie, de telle façon qu'elle dépasse axialement la bague intérieure 1 par une zone 5. La zone présente deux rangées d'entailles périphériques 6, décalées les unes par rapport aux autres dans le sens périphérique. De ce fait, les entretoises 7 situées entre deux trous allongés de l'une des rangées sont situées chacune sensiblement face au milieu d'un trou allongé de la rangée voisine, procurant ainsi une implantation élastique formant ressort. La rigidité souhaitée peut être optimisée, par l'intermédiaire de l'épaisseur de paroi et de la longueur de l'encoche périphérique, en fonction des In FIG. 1, the inner ring has been designated by 1, the balls by 2, the cage by 3 and the outer ring by 4. According to the invention, the outer ring 4 is made enlarged, so that it extends axially beyond the inner ring 1 by a zone 5. The zone has two rows of peripheral notches 6, offset from one another in the peripheral sense. Therefore, the spacers 7 located between two elongated holes of one of the rows are each located substantially opposite the middle of an elongated hole of the adjacent row, thus providing an elastic implantation forming a spring. The desired rigidity can be optimized, through the wall thickness and the length of the peripheral notch, depending on the
conditions d'implantation et de charge. installation and loading conditions.
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19518670A DE19518670C2 (en) | 1995-05-20 | 1995-05-20 | Rolling bearings with integrated elastic element |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2734327A1 true FR2734327A1 (en) | 1996-11-22 |
FR2734327B1 FR2734327B1 (en) | 1998-06-05 |
Family
ID=7762514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9604944A Expired - Fee Related FR2734327B1 (en) | 1995-05-20 | 1996-04-19 | ROLLING BEARING, IN PARTICULAR BALL BEARING WITH ANGULAR CONTACT |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE19518670C2 (en) |
FR (1) | FR2734327B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19953269C2 (en) * | 1999-11-06 | 2001-12-13 | Innotec Forschungs & Entw Gmbh | Spring bushing, especially for injection valves on Otto engines |
GB0600172D0 (en) † | 2006-01-06 | 2006-02-15 | Rolls Royce Plc | A bearing race |
DE102006010655B4 (en) * | 2006-03-08 | 2011-07-07 | Minebea Co., Ltd. | Rolling bearings with preload |
DE102014219705B4 (en) * | 2014-09-29 | 2023-04-27 | Aktiebolaget Skf | bearing ring |
US11572825B1 (en) | 2021-12-29 | 2023-02-07 | Garrett Transportation I Inc. | Turbocharger flexible bearing cartridge assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1342756A (en) * | 1919-06-24 | 1920-06-08 | S K F Administrative Company I | Double-acting thrust ball-bearing |
FR984233A (en) * | 1948-05-20 | 1951-07-03 | Timken Roller Bearing Co | Improvements relating to bearing supports |
GB945923A (en) * | 1961-06-17 | 1964-01-08 | Gamet Products Ltd | Improvements in or relating to machine tool spindle bearing assemblies |
GB2255598A (en) * | 1991-05-04 | 1992-11-11 | Schaeffler Waelzlager Kg | Rolling bearing, in particular for steering columns |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD14286A1 (en) * | 1954-01-19 | 1958-01-06 | Heinz Lotz | SPRING SPACING BODY FOR ROLLER BEARINGS |
DE965671C (en) * | 1954-05-27 | 1957-06-13 | Rudolf Spieth | Cylindrical roller bearing in which at least one race is designed as an elastic member |
DE1077008B (en) * | 1957-08-16 | 1960-03-03 | Schaeffler Ohg Industriewerk | Roller bearings that can be adjusted and readjusted, especially needle bearings |
DE2310511C3 (en) * | 1973-03-02 | 1980-09-25 | Rudolf 7300 Esslingen Spieth | roller bearing |
US4551032A (en) * | 1984-07-16 | 1985-11-05 | The Cross Company | Mechanism for pre-loading bearings |
-
1995
- 1995-05-20 DE DE19518670A patent/DE19518670C2/en not_active Expired - Lifetime
-
1996
- 1996-04-19 FR FR9604944A patent/FR2734327B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1342756A (en) * | 1919-06-24 | 1920-06-08 | S K F Administrative Company I | Double-acting thrust ball-bearing |
FR984233A (en) * | 1948-05-20 | 1951-07-03 | Timken Roller Bearing Co | Improvements relating to bearing supports |
GB945923A (en) * | 1961-06-17 | 1964-01-08 | Gamet Products Ltd | Improvements in or relating to machine tool spindle bearing assemblies |
GB2255598A (en) * | 1991-05-04 | 1992-11-11 | Schaeffler Waelzlager Kg | Rolling bearing, in particular for steering columns |
Also Published As
Publication number | Publication date |
---|---|
DE19518670C2 (en) | 2003-08-28 |
DE19518670A1 (en) | 1996-11-21 |
FR2734327B1 (en) | 1998-06-05 |
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ST | Notification of lapse |