CN102257286A - Rolling element cage having spacer - Google Patents
Rolling element cage having spacer Download PDFInfo
- Publication number
- CN102257286A CN102257286A CN2009801512377A CN200980151237A CN102257286A CN 102257286 A CN102257286 A CN 102257286A CN 2009801512377 A CN2009801512377 A CN 2009801512377A CN 200980151237 A CN200980151237 A CN 200980151237A CN 102257286 A CN102257286 A CN 102257286A
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- Prior art keywords
- ring
- rolling bearing
- bearing
- holder
- rolling
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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
- F16C33/72—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
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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
- F16C19/18—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
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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
- F16C19/18—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
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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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/28—Brasses; Bushes; Linings with embedded reinforcements shaped as frames or meshed materials
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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
- F16C33/38—Ball cages
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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
- F16C33/38—Ball cages
- F16C33/3806—Details of interaction of cage and race, e.g. retention, centring
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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
- F16C33/38—Ball cages
- F16C33/40—Ball cages for multiple rows of balls
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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
- F16C33/72—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
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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
- 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
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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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/045—Mounting or replacing seals
Abstract
The invention relates to a roller bearing assembly, particularly a wheel bearing assembly, having a slinger ring (8), a sealing ring and a series of roller bearings, the rolling elements (7) thereof being provided for load transfer between the inner (3) and outer ring (1) and lie in a rolling element cage (12), wherein the rolling element cage (12), in conjunction with the rolling elements (7), axially fixes the inner ring (3) with a degree of play. The aim is to prevent undesired folding down of a radial sealing lip of the sealing ring and a normally unnoticed slipping thereof from the contact surface of the slinger ring (8) in the assembled state of the roller bearing. According to the invention, a rolling element cage (12) and/or a sealing ring is used that limits the axial play of the inner ring (3) in the assembled state of the bearing assembly to such an extent that the radial sealing lip remains on the cylindrical part of the slinger ring (8) independently of the axial position of the inner ring (3).
Description
Invention field
The present invention relates to a kind of roller holder of rolling element of load-bearing of at least one rolling element row that is used to guide rolling bearing.In addition, the present invention relates to a kind of seal ring that is used to protect the scroll space of rolling bearing, the sealing ring has load-bearing member and flexible parts, and wherein, flexible parts are provided with at least one sealing lip, are used for by means of sliding contact sealed rolling space.In addition, the invention still further relates to rolling bearing system, wheel bearing arrangement especially, these rolling bearing systems have such roller holder or such seal ring; And the invention still further relates to the rolling bearing system that has seal arrangement, rolling element row, described seal arrangement has the disc that anchors on the interior ring, transmitted load and being embedded in the roller holder between ring and the outer shroud in the rolling element of described rolling element row is arranged in use in, wherein, described roller holder in conjunction with rolling element with the endless belt play earth's axis in described to fixing.
This rolling bearing system this assembly of this rolling bearing system in other words is particularly useful for being connected with wheel bearing.Rolling element and the influence that is easy to be subjected to invade the foul particle in the scroll space at the interior ring and the raceway on the outer shroud of rolling bearing.
Below, described scroll space is interpreted as the space that is formed together with interior ring by outer shroud, also formed by wheel hub in case of necessity.In scroll space, described rolling element is in the device of single-row or multiple row.Because ring can be presented in the relative rotation motion of driving system with respect to outer shroud in described, so scroll space must utilize seal arrangement to seal on two axial directions about the spin axis of rolling bearing, described seal arrangement is supported this rotational motion.In this case, at first unessential is that whether outer shroud or interior ring are rotating in described wheel bearing arrangement.
In most cases, packing and delivery rolling bearing in preassembled state.Under this preassembled state, only assemble rolling bearing, this means that some members can have certain play each other.Therefore for example interior ring can move in the axial direction together with the disc of suit.Expansion by rolling element keeps encircling in this diametrically in principle.Yet because the moulding of interior ring, described rolling element also contributes to encircling in the locking on an axial direction at least.This is based on as follows, that is, for example in angular contact ball bearing, the shape of the depression of raceway is also being extended in the radial direction.Yet on opposite axial direction, there is not or has only the boundary of disperseing very much usually, the tangible axial play of ring in existing at least thus.
Disadvantageously, the axial internal clearance of described interior ring causes separating of seal arrangement, that is to say separately seal ring and disc.Because the seal action of present described seal arrangement depend on significant degree sealing lip radially on the load-bearing member that anchors at seal ring on the surface of contact of disc against, so exist following dangerous, promptly, before the assembling of reality, greatly about delivery during bearing, the landing from the surface of contact of disc of described sealing lip radially.Directly the result is, when the assembling rolling bearing, no longer described sealing lip is radially taken on the surface of contact of disc, folding on the direction in scroll space on the ringwise set part of disc and owing to the elasticity of itself but in assembly process, bump.This has caused the remarkable variation of sealing function, and this is again because the foreign particle of invading causes significantly reduce the working life of rolling bearing.
Problematicly in addition be that the assembler of described rolling bearing in most cases can not discern the folding of radially sealing lip, more is difficult to eliminate this folding.The folding of described sealing lip not only may take place when delivery, and even may when the assembling rolling bearing, take place, and then uncontrollably change free from error rolling bearing into rolling bearing that error is arranged.
By the known seal arrangement of DE 196 00 125 A1, the favourable design proposal of described seal arrangement by disc stops the folding of radially sealing lip.
By the known cartridge seal part that has encoder of DE 100 56 175 A1, described cartridge seal part has jut, and this jut points to scroll space and is used for advantageously piling up the boxlike Sealing.
Summary of the invention
The present invention is based on following task, promptly, the member of a kind of wheel bearing arrangement and wheel bearing arrangement is proposed, the member of this wheel bearing arrangement and this wheel bearing arrangement avoided sealing lip radially from the disc landing in other words before assembling or avoided the folding of radially sealing lip between erecting stage.
Mention in the roller holder of type in beginning, described task is resolved in the following manner, that is, roller holder has the first spacing holder, wherein, this first spacing holder is set to be used for roller holder spaced apart from the seal arrangement of rolling bearing.
In addition, mention that in beginning task is resolved in the following manner described in the seal ring of type, promptly, seal ring has the second spacing holder, wherein, this second spacing holder has from the isolated function of rolling bearing retainer in the rolling bearing of assembling, and is set under the running state of rolling bearing not contact roller kinetoplast retainer for this reason.
In addition, described task is resolved in the wheel bearing arrangement of type is mentioned in beginning in the following manner, that is, this wheel bearing arrangement has by seal ring of the present invention and/or by roller holder of the present invention.
In addition, described task is resolved in the wheel bearing arrangement of type is mentioned in beginning in the following manner, promptly, described seal ring has sealing lip radially, this sealing lip radially is set to be used for sealing described scroll space by means of the sliding contact on the cylindrical parts of disc, and this roller holder is set as follows this, promptly, axial internal clearance to encircle in the following degree restriction under the assembled state of wheel bearing arrangement, that is, feasible sealing lip radially is independent of the axial position of interior ring and is retained on the cylindrical parts of disc.
Have the seal arrangement that has disc by wheel bearing arrangement of the present invention, encircle on last or the wheel hub in this disc anchors at.In addition, the seal ring of described wheel bearing arrangement anchors on the outer shroud.Be provided with rolling element row between interior ring and outer shroud, the rolling element of these rolling element row is arranged in use between the described ring transmitted load and is embedded in the roller holder, wherein, roller holder in conjunction with rolling element will be described in the endless belt play earth's axis to fixing.This carries out in the following manner, that is, ring axially leaving on an axial direction in rolling element stops described in the rolling bearing of assembling, and roller holder stops interior ring axially leaving on opposite axial direction.At this, the axial motion of described interior ring is relevant with the spin axis of rolling bearing.
In the rolling bearing of ready for operation, that is to say that in the rolling bearing that has assembled, such problem can not occur, because ring is engaged on the hub for vehicle wheel securely in described, perhaps axial restraint otherwise.Yet in the rolling bearing of assembling, that is to say under the state that when delivery, is had in the rolling bearing that described interior ring does not fix by this way, and can move in axial play.Thus, the disc in cover installs on the ring can move equally.
In order to ensure being set to be used for by means of seal not landing from the cylindrical parts of disc of sealing lip described scroll space, radially in the sliding contact on the cylindrical parts of disc, described roller holder is set as follows for this reason, promptly, the axial internal clearance of ring in the restriction under the assembled state of wheel bearing arrangement especially wheel bearing, that is to say and keep this axial internal clearance to such an extent that following degree ground is little, that is, feasible sealing lip radially is independent of the axial position of interior ring and is retained on the cylindrical parts of disc.
This realizes in the following manner in mechanical aspects, that is, the power conductance of the confining force on the ring in affacting is got back on the same member, just on the outer shroud.If interior ring moves as follows, that is, make disc axially away from the seal ring that anchors on the outer shroud, stop described interior ring by roller holder so, wherein, restraining force is transmitted on the roller holder by seal ring from outer shroud.That is to say, when seal ring and disc near the time, rolling element stops to encircle in this on opposite direction, in wherein the power of restraining force stream affacts through rolling element from outer shroud again on the ring.The axial internal clearance of ring in this constraint mechanism defines.Now, roller holder not only can be set to be used to limit its axial internal clearance, and extraly or alternatively, seal ring also can be set to be used to limit its axial internal clearance, stops folding or landing from the cylindrical parts of disc with this purpose.
At the roller holder of the rolling element of the load-bearing of at least one rolling element row that is set to be used for to guide rolling bearing, this roller holder can form on one of two axial directions, so that transmit restraining force best.For this reason, this roller holder is to the seal ring direction and/or inwardly encircle that direction is extended or structure otherwise.For this reason, described roller holder for example has the first spacing holder, wherein, this first spacing holder is set to be used for roller holder especially spaced apart for the seal arrangement of seal ring from rolling bearing, and under the running state of rolling bearing the member of the static state of contact sealing device not.
At the seal ring that is set to be used for protect the scroll space of rolling bearing, the sealing ring is in order to transmit restraining force to the direction of roller holder and to extend axially or construct.The sealing ring has load-bearing member and elastic member, and wherein, elastic member is provided with at least one sealing lip, is used for sealing described scroll space by means of sliding contact.
Advantageously, described seal ring has the second spacing holder, and this second spacing holder has seal ring from the isolated function of rolling bearing retainer in the rolling bearing of assembling, and is set to be used to be resisted against roller holder for this reason.In addition, the second spacing holder is arranged in use under the running state of rolling bearing not contact roller kinetoplast retainer or contact roller kinetoplast retainer forcibly not at least.Pressure means that described contact do not mean it in principle, however accidental contact be not be harmful to and perhaps may allow.
In favourable mode of execution, length on the described first spacing holder has axially, this spacing holder and is set to not contact or do not force to contact the member of described seal arrangement because this length has roller holder from the isolated function of seal ring for this reason under the running state of rolling bearing in the rolling bearing of assembling.
In favourable mode of execution, described roller holder has holding member, especially keeps protuberance, and this holding member is arranged in use on the face of the interior ring that is resisted against rolling bearing on the axial direction.This face is set to be used for constraint and is used in other words restraining force is delivered to interior ring.This face can be the constituent element of ringwise groove, and at least with the modularity radial dilatation, yet also expansion in the axial direction in case of necessity.In this case, when keeping protuberance to have other function that for example when assembling rolling bearing, advantageously works, can not interrupt by working principle of the present invention yet.
Advantageously, described rolling bearing system may be embodied as wheel bearing arrangement, especially is embodied as wheel bearing.
In favourable mode of execution, the described second spacing holder is molded on the load-bearing member and/or on the elastic member.
Described elastic member has a plurality of functions usually.This elastic member should anchor on the load-bearing member and have one or more sealing lip simultaneously on the one hand.On the other hand, this elastic member also can be set to be used for the seal ring anchoring is anchored at outer shroud in other words, act as static seal in other words.Therefore, for elastic member is anchored on the load-bearing member, also the moulding of this elastic member can be used as the second spacing holder.Correspondingly, be used for seal ring is anchored at the moulding of the elastic member on the outer shroud.Also advantageously, the projection that originally is set to be used for advantageously to pile up the scroll space side of seal ring or cartridge seal part has essential axial length, intensity, position and/or transfer surface equally, so that act as the second spacing holder.
Advantageously, when this load-bearing member had be used to satisfy this function, during relevant with elastic member mentioned characteristic, described load-bearing member also can be born the function that is used to keep spacing (spaced apart).Be contemplated that the common second spacing holder that forms of described elastic member and load-bearing member equally.
In the mode of execution of mentioning in front, the described second spacing holder not only is used for spaced apart with respect to roller holder, and is used for load-bearing member is anchored at the inboard of the outer shroud of rolling bearing.Scheme as an alternative, the described second spacing holder can be set to be used for elastic member is anchored at load-bearing member.Be contemplated that equally, the described second spacing holder is implemented as two-piece type, and not only near outer shroud, and near interior ring, realize spaced apart.
Described seal arrangement is made of seal ring and disc, and especially can be embodied as the cartridge seal part.
Other favourable make of the present invention and preferred improvement project can obtain from description of drawings and/or dependent claims.
Description of drawings
Below, the embodiment shown in is described in detail and explains the present invention with reference to the accompanying drawings.
Wherein:
Fig. 1 illustrates the cross section by the double-row angular contact bal bearing of prior art;
Fig. 2 illustrates the cross section of the double-row angular contact bal bearing that has axially movable interior ring among Fig. 1;
Fig. 3 illustrates the cross section of the roller holder that has the first spacing holder;
Fig. 4 illustrates the view of roller holder on the spin axis direction among Fig. 3;
Fig. 5 illustrates the cross section of the seal ring that has the second spacing holder;
Fig. 6 illustrates the view of seal ring on the direction of spin axis among Fig. 5;
Fig. 7 illustrates and has the cross section that the one-sided play that is formed by the roller holder among Fig. 3 is guaranteed the double-row angular contact bal bearing of portion.
Embodiment
Fig. 1 and 2 shows the cross section by the double-row angular contact bal bearing of prior art, and wherein, the angular contact ball bearing among Fig. 2 is configured to have axially movable interior ring 3.
Fig. 1 and 2 shows two angular contact ball bearings that are under the assembled state, and this angular contact ball bearing is also packed under this state and delivered.Simultaneously, described accompanying drawing should internally encircle 3 the axial internal clearance that is present in before the bearing assembling and is illustrated.
In disc 8 anchors at by means of press fit on the outside of ring 3 and carrying based on the transmitter (encoder) of the magnetic pole that replaces on periphery.In case 3 in the axial direction (on figure to the right) motion of ring in described, disc 8 comprises that its columniform set part moves equally on identical direction so.In this motion, in moving downwards slowly and be resisted against from now on from columniform set part, sealing lip 5 radially on the outside of ring 3, on described set part, is furnished with surface of contact, be used for hermetically contacting with radially sealing lip 5.
Present problem is, can not see followingly for the user, that is, described sealing lip 5 radially no longer is resisted against in regional A on the surface of contact that is provided with for contact of columniform parts, because should can not see from the outside by zone A.In this state, described two-row ball bearing is (to a certain extent according to guess) dismounting like a dream, and especially described interior ring 3 is inhibited by roller holder 12 owing to effect of restraint.This maintenance protuberance 10 by roller holder 12 causes with the interaction of the groove 11 of interior ring 3 so that realize the maintenance function that play is arranged of wheel bearing arrangement, and then realize single parts others favourable can not deciduous.
It's a pity, can not from the state of foundation Fig. 2, drive described double-row angular contact bal bearing more like a dream.Have following possibility in principle, that is, the power effect by the outside is brought into interior ring 3 in the position that ring has had in this once more in Fig. 1.Yet the elasticity of described sealing lip 5 does not radially allow the sealing lip to flick again on the columniform set part of disc 8.The ground that replaces, folding process takes place on the direction of rolling element 7.If this situation has been carried out once, for the user, can not produce the set functional position of sealing lip 5 radially so once more.When push back described in ring 3 time, can not arrive described correct functional position yet.If under described state, use double-row angular contact bal bearing, can damage the part of flexible parts 6 so by rolling element 7, sealing lip especially radially.In addition, the seal arrangement that has disc 8 and seal ring 9 does not just have sealing function certainly, and the sealing function is essential for wheel bearing.The result breaks down.
Fig. 3 shows the cross section of the roller holder 12 that has the first spacing holder 20.This first spacing holder 20 is molded on the parts 2 of sealed sides of roller holder 12 and has enough axial lengths, so that the play of ring 3 in the restriction.
In addition, the described first spacing holder 20 has less relatively axial vane surface, though utilize this face can transmit restraining force, but can produce less friction with the member of static state when for example the parts of seal ring by mistake contact, and advantageously diminish continuously at run duration by corresponding abrasion on the first spacing holder 20.The moulding of the described first spacing holder can be selected as follows, that is, make and produce as far as possible little friction torque and lower temperature generation under the situation of contact.
The described first spacing holder 20 for example can be used as fritter and is arranged on roller holder 12 distolateral, thus axially the shifting out of ring 3 in the restriction, and guarantee radially sealing lip 5 with each tolerance position in correct position.
At this advantageously, a large amount of this fritters are installed, thereby uniform power transmission can taken place on periphery, and can between roller holder 12 and seal ring, not occur other spacing partly.Fritter as described in can designing as following mode promptly, makes that realization is contactless with static parts forcibly, but can nuzzle up on seal ring in tolerance range.
Fig. 4 shows the view of roller holder 12 on the direction of wheel bearing spin axis among Fig. 3.
Exemplarily show the distribution of the first spacing holder 20.Advantageously, for evenly spaced apart and distribute uniformly.Yet can change the sum of the first spacing holder 20, however can advise be the minimum number of three first spacing holders 20.The described first spacing holder 20 especially can be spaced from each other equably or be spaced apart unevenly.In addition, the axial vane surface that is used for restraining force can change transmission.If for example get rid of contacting of the described first spacing holder 20 and static member, also can to design ground bigger for the axial vane surface of this spacing holder 20 so, perhaps for example upwards widens in week.
Fig. 5 shows the cross section of the seal ring that has the second spacing holder 21.
This spacing holder 21 is molded on the elastic member of shown seal ring, and then is implemented as flexible equally.On elastic member 6, mold three lip shape portions, two sealing lip shape portions radially, that comprise sealing lip shape portion 5 radially, and axial sealing lip shape portion 4.Keep elastic member 6 by described load-bearing member 9, this load-bearing member anchors on the outer shroud 1.
Preferably, the described second spacing holder also can be formed at load-bearing member 9 and is configured in other words on this load-bearing member.This not only can be as an alternative, also can be extra, can use two second spacing holders that have different radial positions thus.
Then same feasible is that described elastic member 6 constructs the second spacing holder.Thus, for example be used for the zone that flexible parts 6 anchor on the load-bearing member 9 has also been obtained second function.
Fig. 6 shows the view of seal ring on wheel bearing spin axis direction among Fig. 5.
For a large amount of second spacing holders 21, equally can be on seal ring, to carry out ringwise distribution corresponding to the method in the first spacing holder 20 of Fig. 3, the load-bearing member 9 of the elastic member of sealing ring or sealing ring obtains explanation.
Fig. 7 shows the cross section of the double-row angular contact bal bearing of the play restriction that has the interior ring 3 that is formed by the roller holder 12 that has the first spacing holder 22.
Owing to used the roller holder 12 that has the first spacing holder 22, the axial internal clearance value of being reduced to B+C of interior ring 3.Suppose that described sealing lip 5 radially is in the centre of surface of contact of the cylindrical set part of disc 8 when correct location, wherein said surface of contact has axial expansion D, is suitable for so with lower inequality:
D＞0.5·(B+C)
In this case, B is the axial spacing between the ringwise containment surfaces of groove 11 of the maintenance protuberance 10 of roller holder 12 and interior ring 3, and C is the first spacing holder 22 and the axial spacing of the parts (being load-bearing member 9 in an embodiment) of seal ring.
Generally speaking, in comparing, the distance of the end of the scroll space side of the cylindrical set part of disc 8 encircles 3 axial internal clearance B+C when bigger, the play restriction of ring 3 in existing when radially the correct axial position of sealing lip 5 on surface of contact.
Advantageously, described maintenance protuberance 10 upwards interrupted in the week around the rolling bearing spin axis, expended relevant with the material of minimum in other words.When the material of described roller holder 12 has certain elasticity, must when considering spacing B and C, consider this elasticity.The enough shape stabilities that do not have roller holder 12 so in case of necessity thus, must be taked less spacing B and C.Be contemplated that at this, during rolling-operation, reach in the tolerance range that contacts with the member that adjoins.
Advantageously, can use the second spacing holder equally, for example the second spacing holder 21 among Fig. 5.Thus, the described first and second spacing holders contact when rolling bearing is assembled, and play reduces so that realize keeping the spacing of interior ring 3 in other words.At this, one of two spacing holders must be advantageously ringwise, so that guarantee spaced apart in each possible relative position of retainer and seal ring.Advantageously, the spacing holder that is used for span to be achieved must design very thinly and bear the danger that fractures.
Advantageously, can use the first and second spacing holders equally, this first and second spacings holder does not contact owing to different radial positions.Thus, can on the whole radial width of seal ring, realize the spacing that keep to equate or simple and crude realize more stable play restriction.
Generally speaking, the present invention relates to a kind of rolling bearing system, especially wheel bearing arrangement, described rolling bearing system has disc, seal ring and rolling element row, transmitted load and being embedded in the roller holder between ring and the outer shroud in the rolling element of this rolling element row is arranged in use in, wherein, described roller holder in conjunction with rolling element with the interior endless belt play earth's axis to fixing.What should stop under the assembled state of rolling bearing is, the folding and seal ring of the non-expectation of the sealing lip radially of seal ring escape detection usually from the surface of contact landing of disc.Use roller holder and/or seal ring for this reason, the axial internal clearance that the sealing ring encircles in described with the restriction of following degree under the assembled state of bearing means, that is, feasible sealing lip radially is independent of the axial position of interior ring and is retained on the cylindrical parts of disc.
Reference numerals list
Near the zone of radially the sealing lip of A surface of contact
The axial spacing of the holding member of B roller holder and the containment surfaces of interior ring
The axial spacing of C first spacing holder and seal ring
The axial expansion of D surface of contact
1 outer shroud
The parts in sealed sides of 2 roller holders
Ring in 3
4 axial sealing lips
5 radially sealing lips
6 elastic members
7 rolling elements
8 discs
9 load-bearing members
10 keep protuberance
11 grooves
12 roller holders
Ring in 13
20 first spacing holders
21 second spacing holders
22 first spacing holders
Claims (12)
1. be used to guide the roller holder (12) of rolling element (7) of load-bearing of at least one rolling element row of rolling bearing, it is characterized in that, described roller holder (12) has the first spacing holder (20,22), wherein, the described first spacing holder (20,22) is set to be used for described roller holder (12) spaced apart from the seal arrangement of described rolling bearing.
2. by the described roller holder of claim 1, wherein, the described first spacing holder (20,22) has axial length, the described first spacing holder has described isolated function owing to described axial length in the rolling bearing of assembling, and is set to not contact under the running state of described rolling bearing the member of described seal arrangement for this reason.
3. by claim 1 or 2 described roller holders (12), wherein, described roller holder (12) has holding member, especially keeps protuberance (10), and described holding member is arranged in use on the face of the interior ring (3) that is resisted against described rolling bearing on the axial direction.
4. rolling bearing system, especially wheel bearing arrangement, described rolling bearing system has by each described roller holder (12) in the claim 1 to 3.
5. be used to protect the seal ring of the scroll space of rolling bearing; described seal ring has load-bearing member (9) and elastic member (6); wherein; described elastic member (6) is provided with at least one sealing lip (4; 5); be used for sealing described scroll space by means of sliding contact; it is characterized in that; described seal ring has the second spacing holder (21); wherein; the described second spacing holder (21) has from the isolated function of rolling bearing retainer (12) in the rolling bearing of assembling, and is set to not contact under the running state of described rolling bearing described rolling bearing retainer (12) for this reason.
6. by the described seal ring of claim 5, wherein, the described second spacing holder (21) be molded over that described load-bearing member (9) is gone up and/or described elastic member (6) on.
7. by each described seal ring in the claim 5 or 6, wherein, the described second spacing holder (21) is set to be used for described load-bearing member (9) is anchored at the inboard of the outer shroud (1) of described rolling bearing.
8. by each described seal ring in the claim 5 to 7, wherein, the described second spacing holder (21) is set to be used for described elastic member (6) is anchored at described load-bearing member (9).
9. have seal arrangement by each described seal ring in the claim 5 to 8.
10. rolling bearing system, especially wheel bearing arrangement, described rolling bearing system has by the described seal arrangement of claim 9.
11. rolling bearing system, especially wheel bearing arrangement, described rolling bearing system has:
-anchor at the disc (8) on the interior ring (3),
-anchor at the seal ring on the outer shroud (1),
-rolling element row, the rolling element (7) of described rolling element row is arranged in use between interior ring (3) and the outer shroud (1) transmitted load and is embedded in the roller holder (12), wherein, described roller holder (12) is with the play earth's axis to fixing on ring (3) in described in conjunction with described rolling element (7), wherein, described seal ring has sealing lip (5) radially, the sliding contact that described sealing lip is set to be used for by means of on the columniform parts of disc (8) comes the sealed rolling space, it is characterized in that, described roller holder (12) be arranged in use under the assembled state of described wheel bearing arrangement with following degree restriction described in the axial internal clearance of ring (3), that is, make described sealing lip (5) radially be independent of described in the ring (3) axial position and be retained on the described columniform parts of described disc (8).
12. by the described rolling bearing system of claim 11, wherein, described seal ring is set to be used to limit the described axial internal clearance of interior ring (3).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008063959.1 | 2008-12-19 | ||
| DE102008063959.1A DE102008063959B4 (en) | 2008-12-19 | 2008-12-19 | Rolling element cage with spacer |
| PCT/EP2009/065492 WO2010069701A1 (en) | 2008-12-19 | 2009-11-19 | Rolling element cage having spacer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102257286A true CN102257286A (en) | 2011-11-23 |
| CN102257286B CN102257286B (en) | 2014-09-03 |
Family
ID=41571125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980151237.7A Active CN102257286B (en) | 2008-12-19 | 2009-11-19 | Rolling element cage having spacer |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR101639829B1 (en) |
| CN (1) | CN102257286B (en) |
| DE (1) | DE102008063959B4 (en) |
| WO (1) | WO2010069701A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104685245A (en) * | 2012-08-23 | 2015-06-03 | 舍弗勒技术股份两合公司 | Rolling bearing with radial hydraulic pressure medium transfer |
| CN107110214A (en) * | 2015-01-23 | 2017-08-29 | 舍弗勒技术股份两合公司 | Rolling bearing |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518653A (en) * | 2011-12-01 | 2012-06-27 | 浙江博盟精工机械有限公司 | High-speed sealing integrated lower roller bearing |
| DE102017125910B4 (en) * | 2017-11-07 | 2019-05-23 | Schaeffler Technologies AG & Co. KG | Three-row angular contact ball bearing |
| US10619674B1 (en) * | 2019-01-14 | 2020-04-14 | Aktiebolaget Skf | Bearing assembly |
| CN111981046A (en) * | 2019-05-23 | 2020-11-24 | 舍弗勒技术股份两合公司 | Sealing device for bearing |
| DE102019123254A1 (en) * | 2019-08-30 | 2020-09-03 | Schaeffler Technologies AG & Co. KG | Angular contact ball bearings, device for positioning balls of the angular contact ball bearing and method for dismantling and assembling the angular contact ball bearing |
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- 2008-12-19 DE DE102008063959.1A patent/DE102008063959B4/en active Active
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- 2009-11-19 WO PCT/EP2009/065492 patent/WO2010069701A1/en active Application Filing
- 2009-11-19 KR KR1020117008173A patent/KR101639829B1/en active IP Right Grant
- 2009-11-19 CN CN200980151237.7A patent/CN102257286B/en active Active
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| US4427242A (en) * | 1982-01-26 | 1984-01-24 | Atlantic Richfield Company | Unitized tapered roller bearing |
| US5863124A (en) * | 1995-07-10 | 1999-01-26 | Nsk, Ltd. | Rolling bearing unit having tone wheel |
| CN1456822A (en) * | 2002-05-10 | 2003-11-19 | 依纳-谢夫勒两合公司 | Biserial radial thrust ball bearing |
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| CN104685245A (en) * | 2012-08-23 | 2015-06-03 | 舍弗勒技术股份两合公司 | Rolling bearing with radial hydraulic pressure medium transfer |
| CN104685245B (en) * | 2012-08-23 | 2017-09-05 | 舍弗勒技术股份两合公司 | The rolling bearing of the radial direction transfer device of pressure medium with hydraulic pressure |
| CN107110214A (en) * | 2015-01-23 | 2017-08-29 | 舍弗勒技术股份两合公司 | Rolling bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008063959A1 (en) | 2010-07-01 |
| DE102008063959B4 (en) | 2021-03-04 |
| WO2010069701A1 (en) | 2010-06-24 |
| KR20110095858A (en) | 2011-08-25 |
| CN102257286B (en) | 2014-09-03 |
| KR101639829B1 (en) | 2016-07-14 |
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