WO2010069701A1 - Cage de corps de roulement à entretoise - Google Patents

Cage de corps de roulement à entretoise Download PDF

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Publication number
WO2010069701A1
WO2010069701A1 PCT/EP2009/065492 EP2009065492W WO2010069701A1 WO 2010069701 A1 WO2010069701 A1 WO 2010069701A1 EP 2009065492 W EP2009065492 W EP 2009065492W WO 2010069701 A1 WO2010069701 A1 WO 2010069701A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
ring
spacer
sealing
wälzkörperkäfig
Prior art date
Application number
PCT/EP2009/065492
Other languages
German (de)
English (en)
Inventor
Alexander HÄPP
Wilhelm Walter
Original Assignee
Schaeffler Technologies Gmbh & 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 Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Priority to CN200980151237.7A priority Critical patent/CN102257286B/zh
Publication of WO2010069701A1 publication Critical patent/WO2010069701A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing 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
    • 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
    • F16C19/18—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 two or more rows of balls
    • 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
    • F16C19/18—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 two or more rows of balls
    • F16C19/181—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 two or more rows of balls with angular contact
    • F16C19/183—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 two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—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 two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/28—Brasses; Bushes; Linings with embedded reinforcements shaped as frames or meshed materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3806—Details of interaction of cage and race, e.g. retention, 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
    • F16C33/38—Ball cages
    • F16C33/40—Ball cages for multiple rows of balls
    • 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
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • 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
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/04—Preventing damage to bearings during storage or transport thereof or when otherwise out of use
    • 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
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/045—Mounting or replacing seals

Definitions

  • the invention relates to a WälzSystemhimfig for guiding load-bearing rolling elements at least one row of rolling elements of a rolling bearing. Furthermore, the invention relates to a sealing ring for protecting a Wälzraumes a rolling bearing, with a support member and an elastic member, wherein the elastic member at least one sealing lip for sealing the Wälz- space is provided by means of a sliding contact.
  • the invention relates to rolling bearing assemblies, in particular wheel bearing assemblies having such Wälz analyses hofig or such a sealing ring, and a rolling bearing assembly with a seal assembly having a slinger attached to an inner ring, a rolling element, whose rolling elements for load transfer between the inner and outer ring are provided and insert into a Wälz analysesurafig, wherein the Wälz analyses hofig axially fixed in combination with the rolling elements, the inner ring with a game.
  • Such a rolling bearing assembly or such a part of the same, are used in particular connection with wheel bearings.
  • the rolling elements and the raceways on the inner ring and outer ring of the rolling bearing are highly susceptible to dirt particles that can penetrate into the rolling space.
  • rolling room is understood as meaning the space which is formed by the outer ring (s) with the inner ring (s), possibly also by the wheel hub.
  • Wälzraum are the rolling elements in a single-row or multi-row arrangement. Since the inner ring (s) can be made to rotate relative to the outer ring (s), the rolling space in both axial directions with respect to the rotational axis of the rolling bearing must be sealed with sealing arrangements which support such rotational movement. It is initially irrelevant whether in the wheel bearing assembly or the outer rings or the or the inner rings are rotatable.
  • a rolling bearing is usually packed and delivered in a pre-assembled condition.
  • the rolling bearing is merely assembled, which means that some components may have some play with each other.
  • an inner ring with attached slinger can move in the axial direction. Basically, this is held radially by the expansion of the rolling elements.
  • Due to the shape of the inner ring however, the rolling elements also contribute to the fact that the inner ring is blocked at least in an axial direction. This is because, for example, in an angular contact ball bearing, the concave shape of the raceway also extends in the radial direction. In the axial opposite direction, however, there is often no or only a very sporadic boundary, with which there is at least a clear axial play of the inner ring.
  • the axial play of the inner ring causes separation of the seal assembly, that is, separation of the seal ring from the slinger.
  • the sealing effect of the seal assembly to a considerable extent depends on the concern of a radial sealing lip, which is fixed to the support part of the sealing ring on a contact surface of the slinger, there is a risk that the radial sealing lip of the contact surface of the slinger before the actual assembly, such as at the delivery of the warehouse, slips off.
  • the said radial sealing lip is not brought back to the contact surface of the slinger during assembly of the bearing, but encounters in the assembly process on the annular attachment part of the slinger due to its own elasticity in the direction of the Wälzraumes. This results in a significant deterioration of the sealing function, which in turn leads to a significantly reduced life of the bearing due to the penetrating foreign particles.
  • Another problem is that the fitter of the rolling bearing is usually not able to detect a folding of the radial sealing lip, let alone remedy.
  • the folding of the sealing lip can be done both during delivery, as well as during assembly of the bearing itself and thus turn a flawless bearings uncontrollable in a faulty bearings.
  • the invention is based on the object to propose a wheel bearing assembly and components thereof, which prevent slipping of the radial sealing lip of the slinger or the folding of the radial sealing lip before or during assembly.
  • the object is in a sealing ring of the aforementioned Art solved in that the sealing ring has a second spacer, wherein the second spacer in the composite roller bearing has the function of spacing of a roller bearing cage and is intended to not touch the WälzMechkafig in the operating condition of the rolling bearing.
  • the object is achieved in a wheel bearing assembly of the type mentioned above in that it has a sealing ring according to the invention and / or a WälzMechlafig invention.
  • the object is achieved in a wheel bearing assembly of the type mentioned above in that the sealing ring has a radial sealing lip, which is provided for sealing the Wälzraumes by means of a sliding contact on a cylindrical part of the slinger and the Wälz- body cage is provided in the assembled state of the Wheel bearing assembly to limit the axial clearance of the inner ring so far that the radial sealing lip remains independent of the axial position of the inner ring on the cylindrical part of the slinger.
  • the wheel bearing assembly has a seal assembly with a slinger attached to an inner ring or a wheel hub. Further, a sealing ring of the wheel bearing assembly is attached to an outer ring. Between inner and outer ring a rolling element row is provided, the rolling elements are provided for load transfer between the rings and insert in a Wälz analysesurafig, wherein the Wälz stressesurafig axially fixed in combination with the rolling elements, the inner ring with a game. This happens because in the composite rolling bearing, the rolling elements prevent axial removal of the inner ring in the one axial direction and the Wälz stresseshanfig prevents axial removal of the inner ring in the opposite axial direction.
  • the axial movement of the inner ring here refers to the axis of rotation of the bearing.
  • the WälzSystem2.1fig is provided in the assembled state of the wheel bearing assembly, in particular the
  • Position of the inner ring remains on the cylindrical part of the slinger.
  • Both the Wälz stresses- cage can be provided to limit this axial play, and in addition - or alternatively - the sealing ring to be provided for limiting this axial play, with the aim of folding or slipping off the cylindrical part of the slinger prevent.
  • the Wälz stresses which is provided for guidance of the load-bearing rolling elements of at least one row of rolling elements of the rolling bearing, this may be formed in one of the two axial directions to optimally transfer a restraining force. For this purpose, it can extend in the direction of the sealing ring and / or in the direction of the inner ring or otherwise formed.
  • the Wälz analyses hifig for example, have a first spacer, wherein the first spacer for spacing the WälzMechchanurafigs of the seal assembly of the rolling bearing, in particular the sealing ring is provided and touched in the operating condition of the rolling bearing no static component of the seal assembly.
  • the sealing ring which is provided for protecting the rolling space of Wälzla- gers, this is to extend axially to form a retaining force in the direction of the WälzSystemurafigs or form.
  • the sealing ring has a support part and an elastic part, wherein at least one sealing lip for sealing the Wälzraumes is provided by means of a sliding contact on the elastic part.
  • the sealing ring on a second spacer which has the function of the spacing of the sealing ring of a roller bearing cage in the composite rolling bearing and is provided for abutment with the WälzSystemurafig.
  • the second spacer is provided to not touch the WälzSystemurafig in the operating condition of the rolling bearing or at least not to touch under duress. Under duress means that a touch is in principle not intended, but an occasional touch is not harmful and may be allowed under certain circumstances.
  • the first spacer has an axial length, as a result of which, in the assembled rolling bearing, it performs the function of spacing the rolling element cage from the sealing ring. has and is intended to touch in the operating state of the bearing no component of the seal assembly or not to touch under duress.
  • a retaining lug which is provided for abutment in the axial direction of a surface of the inner ring of the rolling bearing.
  • This surface is provided for retention, or for transmitting the restraining force on the inner ring.
  • the surface may be part of an annular groove and expands at least componentwise in the radial, but also optionally in the axial direction.
  • the mode of operation according to the invention does not detract, if the retaining lug also has other functions which, for example, have an advantageous effect during assembly of the rolling bearing.
  • the rolling bearing assembly as a wheel bearing assembly, in particular as a wheel bearing, executable.
  • the second spacer is formed on the carrier part and / or on the elastic part.
  • the elastic part usually has several functions. On the one hand, the elastic part is to be fastened to a carrier part and at the same time to have one or more sealing lips. In addition, the elastic part can also be provided for anchoring or attachment of the sealing ring on the outer ring or act as a static seal. Therefore, a formation of the elastic member for fixing the same to the support member may also function as a second spacer. The same applies to a shaping of the elastic part for fastening the sealing ring on the outer ring. It is also advantageous if a roller chamber-side extension, which is actually provided for the advantageous stacking of sealing rings or cassette seals, also has the necessary axial length, strength, position and / or transfer surface to as second spacer to act.
  • the support member may advantageously take over a function for spacing (spacing), if it has the already mentioned in connection with the elastic member properties to fulfill this function. It is also conceivable that elastic part and support member jointly form a second spacer.
  • the second spacer is provided not only for spacing against the rolling element cage, but also for fixing the carrier part to an inner side of the outer ring of the rolling bearing.
  • the second spacer may be provided for attachment of the elastic member to the support member. It is also conceivable that the second spacer is made in two parts and a Beabstan- Phyg achieved both in the vicinity of the outer ring, as well as in the vicinity of the inner ring.
  • the seal assembly is formed from the sealing ring and the slinger and can be designed in particular as a cassette seal.
  • Fig. 2 shows a cross section through the double row angular contact ball bearings 1 with axially displaced inner ring
  • Fig. 4 is a view of the WälzMechshifig of Fig. 3 in the direction of
  • FIG. 5 shows a cross section through a sealing ring with a second spacer
  • Fig. 6 is a view of the sealing ring of FIG. 5 in the direction of
  • FIG. 7 shows a cross section through a double-row angular contact ball bearing with one-sided play protection by the rolling element cage from FIG. 3.
  • FIG. 1 and 2 show a cross section through a double-row angular contact ball bearing according to the prior art, wherein the angular contact ball bearing is shown in Fig. 2 with axially displaced inner ring 3.
  • FIGS. 1 and 2 show two angular contact ball bearings in the assembled state, in which such an angular contact ball bearing is also packed and delivered. Together, the figures illustrate the axial play of the inner ring 3, which is present before the bearing assembly.
  • the slinger 8 is fixed by means of a press fit on an outer side of the inner ring 3 and carries an encoder on the basis of circumferentially alternating magnetic poles (encoder). As soon as the inner ring 3 moves in the axial direction (in the picture to the right), the slinger 8, including its cylindrical attachment part, also moves in the same direction. During this movement, the radial sealing lip 5 moves from the cylindrical down on which the contact surface for the sealing contact with the radial sealing lip 5 is arranged, and is now on the outside of the inner ring 3 at.
  • FIG. 3 shows a cross section through a rolling body cage 12 with a first spacer 20.
  • the first spacer 20 is formed on the Dichtungsungsseiti- gene part 2 of the WälzSystemkarfigs 12 and has a sufficient axial length in order to limit the play of the inner ring 3.
  • the first spacer 20 also has a relatively small axial surface, with which a restraining force is transferable, but in the case of an unwanted contact with a static component, such as a part of the sealing ring, a relatively low friction arises and advantageously by the corresponding Abrasion at the first spacer 20 during operation is continuously smaller.
  • the shape of the first spacer can be chosen so that in the case of contact the lowest possible frictional torque and a low temperature development.
  • the first spacer 20 may be provided, for example, as a nub on the end face of the rolling body cage 12, so that the axial migration of the inner ring 3 is limited and the radial sealing lip 5 in each tolerance position is securely in the correct position.
  • knobs can be designed in such a way that they do not make any contact with a static component under duress, but in the tolerance range it is possible to rub on the sealing rings.
  • FIG. 4 shows a view of the roller body cage 12 from FIG. 3 in the direction of the axis of rotation of the wheel bearing.
  • the distribution of the first spacers 20 is shown by way of example. A uniform distribution is advantageous for a uniform spacing. However, the total number of first spacers 20 may vary, however, a minimum of three first spacers 20 is recommended. In particular, the first spacers 20 may be evenly spaced or uneven. Further, the axial area to the retention force transmission may vary. For example, if a touch of the first spacer 20 is excluded with static components, the axial surface of the spacer 20 can be designed to be larger, or be extended, for example, in the circumferential direction.
  • FIG. 5 shows a cross section through a sealing ring with a second spacer 21.
  • the spacer 21 is integrally formed on an elastic part of the seal ring shown and thus also designed to be elastic. On the elastic part 6 three lips are formed, two radial sealing lips, including the radial sealing lip 5, and an axial sealing lip 4. The elastic member 6 is held by the support member 9 which is fixed to the outer ring 1.
  • the second spacer can also emerge from the carrier part 9 or be formed on this. This is not only possible as an alternative, but also in addition, so that two second spacers can be used with different radial positions.
  • the elastic part 6 forms a second spacer.
  • the area which is used to fasten the elastic part 6 to the carrier part 9 would still have a second function.
  • Fig. 6 shows a view of the sealing ring of Fig. 5 in the direction of the axis of rotation of the wheel bearing.
  • FIG. 7 shows a cross section through a double-row angular contact ball bearing with play limitation of the inner ring 3 through a rolling body cage 12 with a first spacer 22.
  • B is the axial distance of the retaining lug 10 of the WälzSystemkorfigs 12 of the annular retaining surface of the groove 11 of the inner ring 3 and C is the axial distance of the first spacer 22 of a portion of the sealing ring - in the embodiment, the support member.
  • the retaining lugs 10 are interrupted in the circumferential direction about the axis of rotation of the rolling bearing, or touch each other with a minimum cost of materials. With a certain elasticity of the material of the WälzMechkafigs 12, this must be taken into account when taking into account the distances B and C. Then there may be insufficient dimensional stability of the WälzMechkafigs 12, so that smaller distances B and C must be taken into account. It is conceivable to reach the tolerance range of the contact with the adjacent components during the rolling operation.
  • a second spacer such as the second spacer 21 from FIG. 5, can also be used. This would contact the first and second spacers in the composite bearing to a
  • One of the two would advantageously be annular, to ensure a spacing in any possible relative position of the cage and the sealing ring. This is advantageous if a spacer for the distance distance to be achieved would have to be designed to be too thin and there would be a risk of breaking off.
  • a first and a second spacer can be used, which do not touch due to different radial position.
  • a constant distance over the entire radial width of the sealing ring or simply a more stable game limitation can be realized.
  • the invention relates to a rolling bearing assembly, in particular wheel bearing assembly, with a slinger, a sealing ring and a rolling element whose rolling elements are provided for load transfer between the inner and outer ring and hedge in a Wälz analysesurafig, wherein the Wälz analysesurafig in combination with the rolling elements, the inner ring with a game axially fixed. It is intended to prevent unwanted folding over of a radial sealing lip of the sealing ring, as well as a generally unnoticed slippage thereof from the contact surface of the slinger in the assembled state of the rolling bearing.

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

Abstract

L'invention concerne principalement un ensemble palier à roulement, en particulier un ensemble roulement de roue, comprenant un anneau de dégivrage (8), un anneau d'étanchéité et une série de corps de roulement, ces corps de roulement (7) permettant la transmission de charge entre l'anneau intérieur (3)et l'anneau extérieur (1) et étant agencés dans une cage de corps de roulement (12). Cette dernière, associée aux corps de roulement (7), permet de fixer axialement, avec un certain jeu, l'anneau intérieur (3). L'objectif de l'invention est d'éviter un rabattement indésirable d'une lèvre d'étanchéité radiale de l'anneau d'étanchéité, ainsi qu'un glissement passant généralement inaperçu de cette dernière par rapport à la surface de contact de l'anneau de dégivrage (8), lorsque le palier à roulement est à l'état monté. A cet effet, on utilise une cage de corps de roulement (12) et/ou un anneau d'étanchéité limitant le jeu axial de l'anneau intérieur (3) lorsque l'ensemble palier à roulement est à l'état monté, de sorte que la lèvre d'étanchéité radiale reste sur la partie cylindrique de l'anneau de dégivrage (8) indépendamment de la position axiale de l'anneau intérieur (3).
PCT/EP2009/065492 2008-12-19 2009-11-19 Cage de corps de roulement à entretoise WO2010069701A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200980151237.7A CN102257286B (zh) 2008-12-19 2009-11-19 带有间距保持件的滚动体保持架

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008063959.1 2008-12-19
DE102008063959.1A DE102008063959B4 (de) 2008-12-19 2008-12-19 Wälzkörperkäfig mit Abstandhalter

Publications (1)

Publication Number Publication Date
WO2010069701A1 true WO2010069701A1 (fr) 2010-06-24

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Application Number Title Priority Date Filing Date
PCT/EP2009/065492 WO2010069701A1 (fr) 2008-12-19 2009-11-19 Cage de corps de roulement à entretoise

Country Status (4)

Country Link
KR (1) KR101639829B1 (fr)
CN (1) CN102257286B (fr)
DE (1) DE102008063959B4 (fr)
WO (1) WO2010069701A1 (fr)

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CN102518653A (zh) * 2011-12-01 2012-06-27 浙江博盟精工机械有限公司 一种高速密封一体下罗拉轴承
CN111981046A (zh) * 2019-05-23 2020-11-24 舍弗勒技术股份两合公司 轴承用密封装置

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Publication number Priority date Publication date Assignee Title
DE102012214960A1 (de) * 2012-08-23 2014-02-27 Schaeffler Technologies AG & Co. KG Wälzlager mit radialer Druckmittelübertragung
DE102015201101A1 (de) * 2015-01-23 2016-07-28 Schaeffler Technologies AG & Co. KG Wälzlager
DE102017125910B4 (de) * 2017-11-07 2019-05-23 Schaeffler Technologies AG & Co. KG Dreireihiges Schrägkugellager
US10619674B1 (en) * 2019-01-14 2020-04-14 Aktiebolaget Skf Bearing assembly
DE102019123254A1 (de) * 2019-08-30 2020-09-03 Schaeffler Technologies AG & Co. KG Schrägkugellager, Vorrichtung zum Positionieren von Kugeln des Schrägkugellagers und Verfahren zur Demontage und Montage des Schrägkugellagers

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KR20110095858A (ko) 2011-08-25
DE102008063959B4 (de) 2021-03-04
CN102257286A (zh) 2011-11-23
DE102008063959A1 (de) 2010-07-01
KR101639829B1 (ko) 2016-07-14

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