CN102257286B - Rolling element cage having spacer - Google Patents
Rolling element cage having spacer Download PDFInfo
- Publication number
- CN102257286B CN102257286B CN200980151237.7A CN200980151237A CN102257286B CN 102257286 B CN102257286 B CN 102257286B CN 200980151237 A CN200980151237 A CN 200980151237A CN 102257286 B CN102257286 B CN 102257286B
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- Prior art keywords
- rolling bearing
- holder
- ring
- roller holder
- rolling
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Classifications
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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 for guiding the roller holder of rolling element of load-bearing of at least one rolling element row of rolling bearing.In addition, the present invention relates to a kind of seal ring of the scroll space for the protection of rolling bearing, sealing ring has load-bearing member and flexible parts, wherein, is provided with at least one sealing lip on flexible parts, for by means of sliding contact sealed rolling space.In addition, the invention still further relates to rolling bearing system, especially wheel bearing arrangement, these rolling bearing systems have such roller holder or such seal ring; And the invention still further relates to the rolling bearing system with seal arrangement, rolling element row, described seal arrangement has the disc anchoring on interior ring, the rolling element of described rolling element row is arranged in use between interior ring and outer shroud transmitted load and is embedded in roller holder, wherein, described roller holder in conjunction with rolling element by described interior endless belt play ground axial restraint.
This rolling bearing system in other words this assembly of this rolling bearing system is particularly useful for being connected with wheel bearing.Rolling element and the raceway on interior ring and the outer shroud of rolling bearing are easy to be subject to invading the impact of the foul particle in scroll space.
Below, described scroll space be interpreted as formed together with interior ring by outer shroud, the space that also formed by wheel hub if desired.In scroll space, in the device of described rolling element in single-row or multiple row.Because described interior ring can be placed in relative rotation motion of driving system with respect to outer shroud, so scroll space must utilize seal arrangement to seal about the spin axis of rolling bearing on two axial directions, described seal arrangement is supported this rotational motion.In this case, first unessential, whether be rotating at described wheel bearing arrangement outer-loop or interior ring.
In most cases, packaging 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.Keep diametrically this interior ring by the expansion of rolling element in principle.But due to the moulding of interior ring, described rolling element also at least encircling and contribute in locking on an axial direction.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.But on contrary axial direction, conventionally there is no or only has the boundary of disperseing very much, the obvious axial play of ring at least existing 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,, before actual assembling, greatly about delivery when bearing, the landing from the surface of contact of disc of described sealing lip radially.Directly result is, in the time of assembling rolling bearing, no longer described sealing lip is radially taken on the surface of contact of disc, but in assembly process, touch on the ringwise set part of disc and due to the elasticity of itself folding in the direction in scroll space.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.
In addition problematic, the assembler of described rolling bearing in most cases can not identify the folding of sealing lip radially, is more difficult to eliminate this folding.The folding of described sealing lip not only may occur in the time of delivery, and even may in the time of assembling rolling bearing, occur, and then uncontrollably changes free from error rolling bearing into have error rolling bearing.
By the known seal arrangement of DE 196 00 125 A1, described seal arrangement stops the folding of sealing lip radially by the favourable design proposal of disc.
By the known cartridge seal part with encoder of DE 100 56 175 A1, described cartridge seal part has jut, and this jut points to scroll space and for stacking boxlike Sealing advantageously.
summary of the invention
The present invention is based on following task,, 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 disc landing in other words before assembling or avoided the folding of sealing lip radially 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 for roller holder is spaced apart from the seal arrangement of rolling bearing.
In addition, mention that in beginning described in the seal ring of type, task is resolved in the following manner,, seal ring has the second spacing holder, wherein, this the 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 following manner in the wheel bearing arrangement of type is mentioned in beginning, 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 following manner in the wheel bearing arrangement of type is mentioned in beginning,, described seal ring has sealing lip radially, this sealing lip is radially set to 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,, axial internal clearance to encircle in following degree restriction under the assembled state of wheel bearing arrangement,, make sealing lip radially be independent of the axial position of interior ring and be retained on the cylindrical parts of disc.
Have the seal arrangement with disc by wheel bearing arrangement of the present invention, this disc anchors on interior ring or on wheel hub.In addition, the seal ring of described wheel bearing arrangement anchors on outer shroud.Between interior ring and outer shroud, be provided with rolling element row, the rolling element of these rolling element row is arranged in use between described ring transmitted load and is embedded in roller holder, wherein, roller holder in conjunction with rolling element will described interior endless belt play axial restraint.This carries out in the following manner, that is, ring axially leaving on an axial direction within rolling element described in the rolling bearing of assembling stops, and roller holder stops interior ring axially leaving on contrary 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 having assembled, such problem there will not be, because described interior ring is engaged on hub for vehicle wheel securely, or axial restraint otherwise.But in the rolling bearing of assembling, that is to say that under the state having in rolling bearing, described interior ring does not fix by this way, and can in axial play, move in the time of delivery.Thus, the disc that cover installs on interior ring can move equally.
In order to ensure being set to for seal not landing from the cylindrical parts of disc of sealing lip described scroll space, radially by means of the sliding contact on the cylindrical parts of disc, described roller holder is set as follows for this reason,, the axial internal clearance of ring in restriction under the assembled state of wheel bearing arrangement especially wheel bearing, that is to say this axial internal clearance is kept to such an extent that following degree ground is little,, make sealing lip radially be independent of the axial position of interior ring and be retained on the cylindrical parts of disc.
This realizes in the following manner in mechanical aspects, that is, the power conductance that is applied to the confining force on interior ring is got back on same member, namely on outer shroud.If interior ring moves as follows, that is, make disc axially away from the seal ring anchoring on outer shroud, stop described interior ring by roller holder so, wherein, restraining force is transmitted to roller holder by seal ring from outer shroud.That is to say, when seal ring and disc near time, rolling element stops this interior ring in the reverse direction, wherein the power of restraining force stream is applied to interior ring through rolling element from outer shroud again.This constraint mechanism defines the axial internal clearance of interior ring.Now, roller holder not only can be set to for limiting its axial internal clearance, and extraly or alternatively, seal ring also can be set to for limiting its axial internal clearance, stops folding or landing from the cylindrical parts of disc with this object.
The roller holder of the rolling element of the load-bearing being listed as at least one rolling element being set to for guiding rolling bearing, this roller holder can form on one of two axial directions, to transmit best restraining force.For this reason, this roller holder to seal ring direction and/or inwardly encircle direction extend or otherwise structure.For this reason, described roller holder for example has the first spacing holder, wherein, this the first spacing holder be set to for by roller holder from rolling bearing especially for the seal arrangement of seal ring is spaced apart, and under the running state of rolling bearing the static member of contact sealing device not.
In the seal ring being set to for the protection of the scroll space of rolling bearing, sealing ring extends axially or constructs for the direction to roller holder transmits restraining force.Sealing ring has load-bearing member and elastic member, wherein, is provided with at least one sealing lip on elastic member, for seal 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 for being 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, the length of described the first spacing holder on having axially, this spacing holder is because this length has roller holder from the isolated function of seal ring in the rolling bearing of assembling, and is set to not contact or do not force to contact under the running state of rolling bearing the member of described seal arrangement for this reason.
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 axial direction.This face is set to for constraint in other words for restraining force being delivered to interior ring.This face can be the constituent element of ringwise groove, and at least with modularity radial dilatation, but also expansion in the axial direction if desired.In this case, in the time keeping protuberance also to there is other function for example advantageously working in the time assembling rolling bearing, can not interrupt by working principle of the present invention.
Advantageously, described rolling bearing system may be embodied as wheel bearing arrangement, is especially embodied as wheel bearing.
In favourable mode of execution, described the second spacing holder is molded on load-bearing member and/or on elastic member.
Described elastic member has multiple functions conventionally.This elastic member should anchor on 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, for seal ring anchoring is anchored to outer shroud in other words, act as in other words static seal.Therefore,, for elastic member is anchored on load-bearing member, also the moulding of this elastic member can be used as to the second spacing holder.Correspondingly, be suitable for the moulding for seal ring being anchored to the elastic member on outer shroud.Also advantageously, be originally set to there is equally essential axial length, intensity, position and/or transfer surface for the projection of the scroll space side of stacking seal ring or cartridge seal part advantageously, to act as the second spacing holder.
Advantageously, when this load-bearing member had for meet this function, when relevant with elastic member mentioned characteristic, described load-bearing member also can be born the function for keeping spacing (spaced apart).Be contemplated that equally the common second spacing holder that forms of described elastic member and load-bearing member.
In aforementioned mode of execution, described the second spacing holder is not only for spaced apart with respect to roller holder, and for load-bearing member being anchored to the inner side of the outer shroud of rolling bearing.As an alternative, described the second spacing holder can be set to for elastic member is anchored to load-bearing member.Be contemplated that equally, described the second spacing holder is implemented as to two-piece type, and not only near outer shroud, and near interior ring, realize spaced apart.
Described seal arrangement is made up of seal ring and disc, and especially can be embodied as cartridge seal part.
Other favourable make of the present invention and preferred improvement project can obtain from brief description of the drawings and/or dependent claims.
Brief description of the drawings
Below, the embodiment shown in is with reference to the accompanying drawings described in detail and explains the present invention.
Wherein:
Fig. 1 illustrates by the cross section of the double-row angular contact bal bearing of prior art;
Fig. 2 illustrates in Fig. 1 the cross section with the double-row angular contact bal bearing of axially movable interior ring;
Fig. 3 illustrates the cross section with the roller holder of the first spacing holder;
Fig. 4 illustrates roller holder in Fig. 3 view in spin axis direction;
Fig. 5 illustrates the cross section with the seal ring of the second spacing holder;
Fig. 6 illustrates seal ring in Fig. 5 view in the direction of spin axis;
Fig. 7 illustrates the cross section of guaranteeing the double-row angular contact bal bearing of portion with the one-sided play being formed by the roller holder in Fig. 3.
Embodiment
Fig. 1 and 2 shows by the cross section of the double-row angular contact bal bearing of prior art, and wherein, the angular contact ball bearing in Fig. 2 is configured to axially movable interior ring 3.
Fig. 1 and 2 shows two angular contact ball bearings under assembled state, and this angular contact ball bearing is also packed and delivered under this state.Meanwhile, described accompanying drawing should internally encircle 3 the axial internal clearance being present in before bearing assemble and is illustrated.
Disc 8 anchors on the outside of interior ring 3 and the transmitter (encoder) of the magnetic pole that replace of carrying based on periphery by means of press fit.Once described interior ring 3 is (on figure to the right) motion in the axial direction, disc 8 comprises that its columniform set part moves upward in identical side equally so.In this motion, sealing lip 5 radially slowly moves downwards and is resisted against from now on the outside of interior ring 3 from columniform set part, is furnished with surface of contact, for contacting with sealing lip 5 radially hermetically on described set part.
Present problem is, can not see below for user, that is, described sealing lip 5 radially is no longer resisted against on the surface of contact arranging for contact of columniform parts, because this region A can not see from the outside in the A of region.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 due to effect of restraint.This maintenance protuberance 10 by roller holder 12 causes with interaction of the groove 11 of interior ring 3, to realize the maintenance function that has play of wheel bearing arrangement, and then realize single parts other side favourable can not deciduous.
It's a pity, can not from the state according to Fig. 2, drive like a dream more described double-row angular contact bal bearing.There is in principle following possibility, that is, again interior ring 3 is brought in the position that this interior ring had in Fig. 1 by outside power effect.But the elasticity of described sealing lip 5 radially does not allow sealing lip again to flick on the columniform set part of disc 8.Instead, folding process occurs in the direction of rolling element 7.If this situation has been carried out once, for user, can not again produce so the set functional position of sealing lip 5 radially.In the time pushing back described interior ring 3, can not arrive described correct functional position yet.If use double-row angular contact bal bearing under described state, can be damaged by rolling element 7 so a part for flexible parts 6, sealing lip especially radially.In addition, just certainly do not have sealing function with the seal arrangement of disc 8 and seal ring 9, sealing function is essential for wheel bearing.Result is to break down.
Fig. 3 shows the cross section with the roller holder 12 of 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 restriction.
In addition, described the first spacing holder 20 has relatively little axial vane surface, although utilize this face can transmit restraining force, but in the time by mistake contacting with the parts of static for example seal ring of member, can produce less friction, and advantageously diminish continuously at run duration by corresponding abrasion on the first spacing holder 20.The moulding of described the first spacing holder can be selected as follows,, makes to produce as far as possible little friction torque and lower temperature generation in the situation that of contact that is.
Described the first spacing holder 20 for example can be used as fritter and is arranged on the distolateral upper of roller holder 12, thus axially the shifting out of ring 3 in restriction, and guarantee sealing lip 5 radially with each tolerance position in correct position.
At this advantageously, a large amount of this fritters are installed, thereby uniform power transmission can occurred on periphery, and can between roller holder 12 and seal ring, not occur partly other spacing.Can design as follows described fritter, that is, make to realize forcibly with static parts contactless, but in tolerance range, can on seal ring, nuzzle up.
Fig. 4 shows roller holder 12 in Fig. 3 view in the direction of wheel bearing spin axis.
Exemplarily show the distribution of the first spacing holder 20.Advantageously, for evenly spaced apart and distribute uniformly.But can change the sum of the first spacing holder 20, but can advise the minimum number of three the first spacing holders 20.Described the first spacing holder 20 especially can be spaced from each other equably or be spaced apart unevenly.In addition, can change transmission for the axial vane surface of restraining force.If for example get rid of contacting of described the first spacing holder 20 and static member, the axial vane surface of this spacing holder 20 also can design greatlyr so, or for example upwards widens in week.
Fig. 5 shows the cross section with the seal ring of the second spacing holder 21.
This spacing holder 21 is molded on the elastic member of shown seal ring, and then is implemented as equally flexible.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 outer shroud 1.
Preferably, described the second spacing holder also can be formed at load-bearing member 9 and is configured in other words on this load-bearing member.This can be not only as an alternative, can be also extra, can use thus two the second spacing holders with different radial positions.
Same feasible, described elastic member 6 constructs the second spacing holder.Thus, for example also obtained the second function for the region that flexible parts 6 are anchored on load-bearing member 9.
Fig. 6 shows seal ring in Fig. 5 view in wheel bearing spin axis direction.
For a large amount of the second spacing holders 21, equally can be to carry out ringwise distribution corresponding to the method in the first spacing holder 20 of Fig. 3 on seal ring, the load-bearing member 9 of the elastic member of sealing ring or sealing ring is illustrated.
Fig. 7 shows the cross section of the double-row angular contact bal bearing of the play restriction of the interior ring 3 forming with the roller holder 12 by with the first spacing holder 22.
Due to the roller holder 12 having used with the first spacing holder 22, the axial internal clearance value of being reduced to B+C of interior ring 3.The centre of the sealing lip 5 radially surface of contact of the cylindrical set part in disc 8 in the time of correct location described in supposing, 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 maintenance protuberance 10 of roller holder 12 and the ringwise containment surfaces of the groove 11 of interior ring 3, and C is the axial spacing of the parts (being load-bearing member 9 in an embodiment) of the first spacing holder 22 and seal ring.
Generally speaking, when the sealing lip 5 radially correct axial position on surface of contact is compared the axial internal clearance B+C of interior ring 3 when larger to the distance of the end of the scroll space side of the cylindrical set part of disc 8, the play restriction of ring 3 in existing.
Advantageously, described maintenance protuberance 10 around rolling bearing spin axis circumferentially on interrupt, expend relevant with minimum material in other words.In the time that the material of described roller holder 12 has certain elasticity, must in the time considering spacing B and C, consider this elasticity.There is not so if desired enough shape stabilities of roller holder 12, thus, must take less spacing B and C.Be contemplated that at this, during rolling-operation, reach in the tolerance range contacting with the member adjoining.
Advantageously, can use equally the second spacing holder, for example the second spacing holder 21 in Fig. 5.Thus, described the first and second spacing holders contact in the time that rolling bearing is assembled, so that the spacing of ring 3 keeps play in other words to reduce in realizing.At this, one of two spacing holders must be advantageously ringwise, to guarantee spaced apart in the each possible relative position of retainer and seal ring.Advantageously, must design very thinly for the spacing holder of span to be achieved and bear the danger fractureing.
Advantageously, can use equally the first and second spacing holders, this first and second spacing holder does not contact due to different radial positions.Thus, can in the whole radial width of seal ring, realize and keep equal spacing 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, the rolling element of this rolling element row is arranged in use between interior ring and outer shroud transmitted load and is embedded in roller holder, wherein, described roller holder in conjunction with rolling element by interior endless belt play ground axial restraint.Under the assembled state of rolling bearing, should stop, the unexpected folding and seal ring of the sealing lip radially of seal ring conventionally escape detection from the surface of contact landing of disc.Use roller holder and/or seal ring for this reason, sealing ring limits the axial internal clearance of described interior ring under the assembled state of bearing means with following degree,, make sealing lip radially be independent of the axial position of interior ring and be retained on the cylindrical parts of disc.
Reference numerals list
Near the region of the sealing lip radially 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 the 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
3 interior rings
4 axial sealing lips
5 sealing lips radially
6 elastic members
7 rolling elements
8 discs
9 load-bearing members
10 keep protuberance
11 grooves
12 roller holders
13 interior rings
20 first spacing holders
21 second spacing holders
22 first spacing holders
Claims (13)
1. for guiding 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, described the first spacing holder (20, 22) be set to for by spaced apart from the seal arrangement of described rolling bearing described roller holder (12), and wherein, described the first spacing holder (20, 22) be arranged on the parts of sealed sides of described roller holder (12) with equally distributed fritter, and there is enough axial lengths, to limit the axial internal clearance of the interior ring (3) of described rolling bearing, make to realize forcibly with described seal arrangement contactless, but can on described seal arrangement, nuzzle up in tolerance range.
2. by roller holder claimed in claim 1, wherein, described the first spacing holder has described isolated function due to described axial length in the rolling bearing of assembling, and is set to not contact the member of described seal arrangement under the running state of described rolling bearing for this reason.
3. by the roller holder (12) described in claim 1 or 2, wherein, described roller holder (12) has holding member, and described holding member is arranged in use on the face of interior ring (3) that is resisted against described rolling bearing on axial direction.
4. by roller holder claimed in claim 3 (12), wherein, described holding member is to keep protuberance (10).
5. rolling bearing system, described rolling bearing system has by the roller holder described in any one in claim 1 to 4 (12).
6. by rolling bearing system claimed in claim 5, wherein, described rolling bearing system is wheel bearing arrangement.
7. by rolling bearing system claimed in claim 5, wherein, described rolling bearing system has the seal ring for the protection of the scroll space of rolling bearing, described seal arrangement comprises described seal ring and disc, described seal ring has load-bearing member (9) and elastic member (6), wherein, on described elastic member (6), be provided with at least one sealing lip (4, 5), for sealing described scroll space by means of sliding contact, wherein, described seal ring has the second spacing holder (21), wherein, described the second spacing holder (21) has from the isolated function of rolling bearing retainer (12) in the rolling bearing of assembling, and be set to not contact described rolling bearing retainer (12) under the running state of described rolling bearing for this reason.
8. by rolling bearing system claimed in claim 7, wherein, described the second spacing holder (21) is molded on described load-bearing member (9) and/or on described elastic member (6).
9. by the rolling bearing system described in claim 7 or 8, wherein, it is upper that described the second spacing holder (21) is arranged on described load-bearing member (9), and described load-bearing member (9) anchors on the inner side of outer shroud (1) of described rolling bearing.
10. by the rolling bearing system described in claim 7 or 8, wherein, it is upper that described the second spacing holder (21) is arranged on described elastic member (6), and described elastic member (6) anchors on described load-bearing member (9).
11. rolling bearing systems, described rolling bearing system has:
-anchor at the disc (8) on interior ring (3),
-anchor at the seal ring on outer shroud (1),
-rolling element row, the rolling element (7) of described rolling element row is arranged in use between interior ring (3) and outer shroud (1) transmitted load and is embedded in roller holder (12), wherein, described roller holder (12) is with play ground axial restraint in conjunction with described rolling element (7) by described interior ring (3), wherein, described seal ring has sealing lip (5) radially, described sealing lip is set to come sealed rolling space for the sliding contact on the columniform parts by means of at disc (8), it is characterized in that, described roller holder (12) has with equally distributed fritter and is arranged on the first spacing holder on the parts of sealed sides of described roller holder (12), for the axial internal clearance with the following degree described interior ring of restriction (3) under the assembled state of described rolling bearing system, , described in making, sealing lip (5) is radially independent of the axial position of described interior ring (3) and is retained on the described columniform parts of described disc (8).
12. by the rolling bearing system described in claim 11, and wherein, described rolling bearing system is wheel bearing arrangement.
13. by the rolling bearing system described in claim 11 or 12, and wherein, described seal ring is set to the described axial internal clearance for limiting 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 CN102257286A (en) | 2011-11-23 |
| CN102257286B true 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) |
Families Citing this family (7)
| 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 |
| DE102012214960A1 (en) * | 2012-08-23 | 2014-02-27 | Schaeffler Technologies AG & Co. KG | Rolling bearings with radial pressure medium transmission |
| DE102015201101A1 (en) * | 2015-01-23 | 2016-07-28 | Schaeffler Technologies AG & Co. KG | 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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| CN200989375Y (en) * | 2006-07-31 | 2007-12-12 | 韶关东南轴承有限公司 | Shaft riveting technique vehicle hub bearing unit |
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| DE2739367A1 (en) * | 1977-09-01 | 1978-10-26 | Kugelfischer G Schaefer & Co | Preassembled taper roller bearing - has plastics cage with elastic protrusions engaging in groove in race |
| US4478463A (en) * | 1981-12-25 | 1984-10-23 | Nippon Seiko Kabushiki Kaisha | Conical roller bearing |
| DE3527033A1 (en) * | 1985-07-27 | 1987-02-05 | Skf Gmbh | RADIAL ROLLER BEARING |
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| DE19600125A1 (en) | 1996-01-04 | 1997-07-10 | Fag Oem & Handel Ag | Seal for rotating part |
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| JP2003307225A (en) * | 2002-04-15 | 2003-10-31 | Yamada Seisakusho Co Ltd | Water pump bearing seal device |
| JP4969836B2 (en) * | 2005-11-17 | 2012-07-04 | Ｎｔｎ株式会社 | Wheel bearing device |
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2008
- 2008-12-19 DE DE102008063959.1A patent/DE102008063959B4/en active Active
-
2009
- 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
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN200982345Y (en) * | 2006-07-31 | 2007-11-28 | 韶关东南轴承有限公司 | Double row conical roller hub bearing with outer rim flange |
| CN200989375Y (en) * | 2006-07-31 | 2007-12-12 | 韶关东南轴承有限公司 | Shaft riveting technique vehicle hub bearing unit |
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 |
| CN102257286A (en) | 2011-11-23 |
| KR101639829B1 (en) | 2016-07-14 |
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