CN102656379B - Cassette seal for a radial bearing and installation method - Google Patents
Cassette seal for a radial bearing and installation method Download PDFInfo
- Publication number
- CN102656379B CN102656379B CN201080053302.5A CN201080053302A CN102656379B CN 102656379 B CN102656379 B CN 102656379B CN 201080053302 A CN201080053302 A CN 201080053302A CN 102656379 B CN102656379 B CN 102656379B
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- CN
- China
- Prior art keywords
- ring
- hollow cylindrical
- cylindrical part
- seal
- cassette
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 12
- 238000009434 installation Methods 0.000 title abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 238000005096 rolling process Methods 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 description 17
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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
- F16C33/7883—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 mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
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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
- F16C33/80—Labyrinth sealings
-
- 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
-
- 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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
-
- 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
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to a cassette seal for sealing a radial bearing, wherein the cassette seal has two rings (3, 4) which are movable relative to one another and the two rings (3, 4) have a hollow cylindrical part and a radially extending part, wherein the hollow cylindrical parts are radially opposite and the radially extending parts are axially opposite when in an operating state. The aim of the invention is to increase the effectiveness of the seal and to simultaneously enable simple installation of the cassette seals. Said aim is achieved in that an outer radius (Ra1) of the radially extending part of the second ring (3) is larger than the largest inner radius (Ri) of the hollow cylindrical part of the first ring (4) and smaller than the outer radius (Ra2) of the hollow cylindrical part of the first ring (4). It is thus possible according to the invention to create a labyrinth seal which better protects the interior of the cassette seals and thus also the rolling space of the radial bearing from outside influences, such as moisture and dirt particles, as the same material cost.
Description
Technical field
The present invention relates to a kind of cassette seal for sealing journal bearing, wherein, cassette seal has two can
The ring moving relative to each other, and this two rings have hollow cylindrical part and radially extending portion, wherein, are running
Diametrically opposed the putting of hollow cylindrical part in state and radially extending portion is opposite in the axial direction, wherein, the first ring
Hollow cylindrical part have with regard to rotation axis bigger compared to other any hollow cylindrical part of cassette seal
External diameter, for being arranged in the supporting part of journal bearing.
Background technology
Journal bearing is made up of clutch shaft bearing part and second bearing part, wherein, is transmitted radially by bearing portions
Power and if necessary two bearing portions or the race ring being disposed thereon have raceway, and raceway is arranged for guiding radial axle
The rolling element holding.
Thus, create the basic problem of seal design, seal should be to the rolling chamber residing for rolling element for footpath
Sealed to the external world of bearing.For journal bearing such as wheel bearing, release bearing etc. of running outside the room of closure, base
The high risk being caused rolling chamber pollution by dirt particle is existed on basis.This leads to rolling bearing quickly to wear and tear.Especially big
Dirt particle in the case of even result in the damage of raceway（So-called spot corrosion）.
For this bad service condition, devise following cassette seal in the past, this cassette seal is not only led to
Cross sealing lip axially and radially to protect rolling chamber in order to avoid water and dirt particle penetrate into, and by two on longitudinal cross-section
Ring for L-shaped to be protected, and these rings strut the space of an annular jointly, and this annular space is arranged for touching by nothing
Tactile gap sealing part or by noted above scratch type, axially and radially sealing lip come sealed rolling chamber.Two ring tools
There is hollow cylindrical part, hollow cylindrical part generally can be connected by pressing base with bearing portions, and therefore very
Contribute to stoping corrosion in the axial direction in big degree.Additionally, arranging that substantially L-shaped ring has obtained by opposite
Cassette seal is operated or is packed and stacking aspect advantage.
Different cassette seal for wheel bearing is disclosed by EP 1,898 132 A1, described cassette seal is returned
Belong to the introduced type according to generic, and to distinguish basically by the arrangement of elastomeric element, these part structures
Become different types of sealing lip.
Problematic is to occur installing shortcoming in compact sealing device.Usually, two rings of cassette seal
It is sequentially fixed on bearing portions by press-in.But because radial seal lip generally can not be saved, there is radial seal lip to exist
Towards the danger of rolling chamber returning in installation process, wherein, radial seal lip generally should insert the hollow cylinder of the second ring
Shape partly goes up.Thus, radial seal lip can not reach the set sealing surface in the second ring, thus rolling bearing is inevitable
In shortest time internal fault.Unfortunately installing fault can not externally visibly, this is because last the second ring installed stops
It is radially oriented the sight line of sealing lip.
Alternatively it is contemplated that, cancel the sealing function of cassette seal in order to avoid the returning introduced.This
It is that the hollow cylindrical part of the first ring and footpath formed therewith are pointed to for the radially extending portion in the second ring
To for the situation of sealing off gap.This and underuse formed sealing off gap feasibility and be equally therefore unfavorable
's.
Content of the invention
Therefore, the task of the present invention is to propose a kind of cassette seal, and this cassette seal not only has high sealing effect
And can be installed in the way of simple and reliable.
This task solves so that the radially extending portion of the second ring by starting the journal bearing unit of described type
External diameter be more than the first ring hollow cylindrical part internal diameter, and the external diameter of the radially extending portion of the second ring is less than
The external diameter of the hollow cylindrical part of the first ring.
Arranged according to the present invention it is：Seal journal bearing using cassette seal, wherein, cassette seal has two
Movable relative to each other ring.Two rings have hollow cylindrical part and radially extending portion, and wherein, described radial direction is prolonged
Extending portion divides following also referred to as radial component.Hollow cylindrical part and radial component formula integral with one another ground connect, and relatively
Substantially form L-shaped in the longitudinal section of journal bearing or the rotation axis of cassette seal respectively, that is, be substantially perpendicular to each other.
Additionally, two rings are arranged so as to：Hollow cylindrical part is diametrically opposite to be put, and radial component is opposite in the axial direction.
Under operation, the hollow cylindrical part of the first ring with respect to rotation axis radially than the second ring
Hollow cylindrical part further leans on disposed outside.Additionally, the hollow cylindrical part of the first ring also shows as box sealing
Part radially furthermost outer with respect to rotation axis and the hollow cylindrical part put.First ring is so-called so-called
Sealing ring, wherein, the second ring is so-called disc if necessary.This first ring is in the ideal case by hollow cylinder
Shape part is fixed on that clutch shaft bearing is partly gone up and the second ring is equally fixed with its hollow cylindrical part in the ideal case
Partly go up in second bearing.Two rings rotate relative to one another that is to say, that two bearing portions in other words for two bearing portions
Two rings for example can be applied in the wheel bearing for passenger vehicle and in the wheel bearing for bogie in other words.
Therefore, the operation principle according to the present invention is based on as described below, that is,：The external diameter of the radial component of the second ring is more than
The internal diameter of the hollow cylindrical part of the first ring.The external diameter of radial component extends to the outside of radial component from rotation axis
Face.The internal diameter of hollow cylindrical part from rotation axis extend to hollow cylindrical part described in hollow cylindrical part
There is in inside face the inside face of maximum radius.Accordingly it is also possible to be said to be maximum internal diameter.
Additionally, being designed according to the present invention, the external diameter of the radial component of the second ring is less than the open circles of the first ring
The external diameter of cylindrical section.Herewith it is achieved that radial component with its longitudinal end section at least in part in the axial direction by
The hollow cylindrical part of one ring covers.This covering ensure that power can from the second ring in the axial direction in process of press in
It is delivered to the first ring.Advantageously, the external diameter mentioned by two is very close to each other for here.Thus, in clutch shaft bearing part
（It can be for example outer ring or the wheel hub of bogie）Between achieve very little radial sealing gap.Additionally, also
Define axially close between the axial end portion of the hollow cylindrical part of the end segments of the radial component of two rings and the first ring
Joint seal gap.Advantageously it is possible that more favorable gap sealing part is manufactured with constant material outlay.
Axial seal gap substantially relies on two rings positioning to be to axial each other fixed.Propose for this
Using pressing in tool, pressing in tool have cone inside face, this conical inside face at relatively large radius in the axial direction
Extending out farther, thus, in the radial component process of press in of the second ring, flexibly bearing load is simultaneously for the inside face of this taper
And moved from from radial direction with limiting angle.Here, the taper of pressing in tool determine two rings final spacing or
Person says that the axial direction between the end segments of the annular section of the second ring and the axial face of hollow cylindrical part of the first ring is close
The size of joint seal gap.In other words, the inner radius in pressing in tool and the outer radius in pressing in tool be pressed into the axial distance in face with
The width of radial sealing gap is identical.Ensure that radial component after process of press in by the elastic bearing load of radial component
Recoil in its home position again, and it is close hereafter to form desired axial direction with the hollow cylindrical part of the first ring
Joint seal gap.Here, it should be noted that taper not strong must make the second ring also non-resiliently bearing load and its do not stress
The shape of state change.
Advantageously impossible it is：The radial seal lip that can not save in many application cases joining from the second ring
The sealing surface belonging to this sealing lip turns to out or even towards rolling chamber returning.This problem is by two rings of press-in simultaneously
It is effectively prevented from.Preferred labyrinth-like seal need not be cancelled simultaneously.
In a preferred embodiment, the first ring has the elastic part with radial seal lip.Elastic part is simultaneously
Other sealing lips for bearing portions, such as axial seal lip or elastic sealing element can also be formed.Additionally, the first ring can
Strict radial oriented to deviate in its radial component Divisional, to realize the more preferable holding to elastic part.
Advantageously, radial seal lip hermetically rests on the hollow cylindrical part of the second ring.Thus, the second ring
Undertake dual-use function because the second ring defines labyrinth-like seal, also stainless corresponding surface sealing surface in other words, with
In the radial seal lip on hollow cylindrical part.This for example can realize in the following way：Second ring（If necessary
Also has the first ring）Manufactured by non-corrosive material.
Advantageously, the hollow cylindrical part of ring is provided for fixing ring.Thus, these rings（Seal except being formed
Outside gap or offer sealing surface）Also assume responsibility for fixing function.
Advantageously, the radial component of the second ring（Also referred to as radially extending portion）Form footpath together with race ring and wheel hub
To gap sealing part.Sealing off gap is considered radial seal, and sealing off gap is by least two radiuses in terms of its stretching, extension
Determined and can arbitrarily be extended in the axial direction.
Advantageously, the hollow cylindrical part of the radial component of the second ring and the first ring forms axial seal gap.
Here, adjacent face axial spacing to each other is determined, wherein, circumferentially extending is not determined and can arbitrarily prolong
Stretch.
In advantageous embodiment, the longitudinal end section of the radial component of the second ring is provided in process of press in
By in axial force transmission to the hollow cylindrical part of the first ring.This is special when the axial face superposition of the first ring and the second ring
It is particularly advantageous when big, thus, the surface force density of very little is possible, it is to avoid to cassette seal in process of press in
Damage.
By an embodiment of the cassette seal according to the present invention be installed in journal bearing when, wherein, box
Seal has radial seal lip, and this radial seal lip is carried by the first ring, and hermetically rests on the sky of the second ring
On heart cylindrical part, employ the pressing in tool with conical axially outer face.Conical axially outer face is more more than half
Stretch out more in the axial direction than at small radii at footpath.By pressing in tool, power is delivered in the axial direction the bullet of the second ring
Property deformation radial component on, wherein, the second ring be used as the first ring installing auxiliary part.The hollow cylinder of the second ring
Part is directly pressed in the axial direction by pressing in tool, and the hollow cylindrical part of the first ring is indirectly by the second circle
The radial component of ring is pressed into.In process of press in, the external end segments of the radial direction of the radial component of the second ring are accurate
Ground to be elapsed with the width in the axial seal gap to be produced between the hollow cylindrical part of the first ring and end segments.
Thus, the hollow cylindrical part of the first ring and radial component have been in these rings in journal bearing（Especially wheel
Bearing）The position that should occupy in running status.The radial component of the only second ring in process of press in determine angle from
It is equally that the initial position of position in running status deflects out.Once pressing in tool is towards if axial backtracking, then
The annular section of the second ring flexibly removes load and moves to its run location.
Advantageously, cassette seal equally advantageous can be installed using sealing labyrinth shape portion.Labyrinth-like portion is in this feelings
Form pre-sealed portion, this pre-sealed portion is provided with one or more collection grooves if necessary and carries axial direction component under condition
And/or the sealing off gap of radial direction component.Here, at least one gap in labyrinth-like portion can be based in process of press in
In installation process the second ring and the first ring relatively elastic bearing load and temporarily close.
Other advantages of the present invention and structural scheme are obtained by brief description book and/or dependent claims.
Brief description
Below, introduce in more detail in conjunction with the embodiment shown in accompanying drawing and illustrate the present invention.
Wherein：
Fig. 1 illustrates mounted cassette seal,
Fig. 2 illustrates the cassette seal in Fig. 1 in a pre-installation,
Fig. 3 illustrates the cassette seal in Fig. 1 during installation,
Fig. 4 illustrates the cassette seal in Fig. 1 after mounting, and
Fig. 5 is shown in the cassette seal in Fig. 1 during pre-installation.
Specific embodiment
Fig. 1 illustrates mounted cassette seal.This cassette seal is arranged on clutch shaft bearing part 1 and second bearing portion
Divide between 2, wherein, clutch shaft bearing part 1 can be for example outer ring or wheel hub, and bearing portions 2 can be for example interior ring
Or can be alternatively wheel hub.
The radial component of two rings 3,4 is opposite in the axial direction, wherein, between the radial component of two rings 3,4
There is axial seal lip 8, this axial seal lip 8 is formed by elastic part 5, elastic part 5 is again by the radial component of the first ring 4
Carried.The radial component of the first ring 4 be in the radial component of the second ring 3 and journal bearing the rolling element do not drawn it
Between, rolling element in its load of carrying in the radial direction with respect to rotation axis R and is introduced in raceway for this, and raceway sets
Put in bearing portions 1,2, or be arranged on be connected with bearing portions 1,2 power cooperations partly in.
Rolling element is in the rolling chamber only partly drawn, and this rolling chamber is sealed in the axial direction by cassette seal.
Sealing function is mostly derived from spring-loaded radial seal lip 7, and sealing lip 7 is protected by axial seal lip 8.Radially close
Envelope lip 6 prevents moisture from penetrating into, and moisture for example can be penetrated into by the lower section of the hollow cylindrical part in the second ring 3 for the corrosion.
Advantageously, the clutch shaft bearing radially extending radial component and the bearing portions that can be rotation of the second ring 3
Part 1 defines radial sealing gap 11, radial sealing gap 11 transit to the end segments 13 of the radial component of the second ring 3 with
In axial seal gap 12 between the hollow cylindrical part of ring 4.It is consequently formed labyrinth-like seal, once axial seal
Lip 8 is no longer able to hermetically rest against because material weares and teares, then this labyrinth-like seal advantageously prevent moisture and dirt
Grain is extruded onto axial seal lip 8 or or even radial seal lip 7.
It can be seen that the external diameter R of the radial component of the second ring 3a1It is in second external diameter R with regard to rotation axisa2With interior
Footpath RiBetween interval in, that is,：
Ra2>Ra1>Ri.
External diameter Ra2The external diameter of the hollow cylindrical part of the first ring, that is, whole cassette seal radially furthermost
The outer and radius of hollow cylindrical part put.In contrast, internal diameter RiIt is the maximum inner diameter of hollow cylindrical part.
Advantageously, this two external diameters are roughly equal：
Ra2≈Ra1.
Resulting in especially little radial sealing gap 11, and for the radial component of the second ring 3 is pressed into
Sufficiently there is axial face overlapping.
Fig. 2 illustrates the cassette seal of Fig. 1 before the mounting.
However, the pressing in tool 9 applied is on the whole ringwise, but directionally have in the axial direction with respect to cassette seal
There is the press-in face 14 of cone, press-in face 14 is axially toward the direction of cassette seal to be mounted at larger radius
More strongly project, and therefore, the radial component with the second ring 3 occurs first before press-in in radially outer region
Contact.The radial component flexibly bearing load of the second ring 3, and tilt slightly toward the direction of rolling chamber, court in other words
Tilt to the direction of the first ring.If raising pressing-in force, pressing in tool 9 contact connects the radial component of the first ring 3, and
And first ring 3 radial component again contact connect the first ring 4 hollow cylindrical part, thus, two rings 3,4 are permissible
Be pressed into simultaneously between clutch shaft bearing part 1 and second bearing part 2 radial gap in so that two rings 3,4 are passed through
Its hollow cylindrical part is fixed on by pressing base on corresponding bearing portions.
Finally, when two hollow cylindrical part of two rings are contacted with bearing portions 1,2, the footpath of the second ring 3
Rest in conical press-in length 14 to part planar formula, occupy identical angle with respect to radius, such as relatively
Conical press-in face 14 in the longitudinal cross-section of rotation axis R.
In this process, radial seal lip 7 and axial seal lip 8 rest against, thus, it is possible to advantageously avoid two lips
One of returning, this is because radial seal lip 7 and axial seal lip 8 lie on sealing surface all the time in press-in.
Fig. 3 illustrates the cassette seal in Fig. 1 during installation.The final run location of cassette seal does not also reach
Arrive, but substantially appreciable be：The end segments 13 of the radial component of the second ring 3 also both radial direction with pressing in tool 9 all the time
On more outer end contact, and contact with the hollow cylindrical part of the first ring 4.
Pressing in tool 9 is already in towards in the backhaul with respect to the axially opposite direction of pressing direction.Hollow cylinder
Part is already in the position being designed for operation.The radial component of the only second ring 3 is also in elastic bearing load all the time
State in.But the radial component of the second ring 3 in the axial direction resilience so that axial seal gap 12 and second can be formed
The exterior face of the radial component of ring 3 is closed in the axial direction with the exterior face of bearing portions.Thus prevent：From exterior face
Injection water may find the path entering radial gap 11.
Fig. 4 illustrates the cassette seal in Fig. 1 after mounting, and wherein, the complete resilience of radial component of the second ring 3 is simultaneously
And instrument 9 can be will be pressed into pull out.
Fig. 5 is shown in the cassette seal in Fig. 1 during pre-installation.
Advantageously it is possible that being pressed into the ring of cassette seal together in the state of pre-installation.The shape of pre-installation
State can be realized in the following way, that is,：Two rings 3,4 are assembled by conical installing auxiliary part 10 so that radial direction is close
On the sealing surface being associated with this radial seal lip of hollow cylindrical part that envelope lip reliably rests on the second ring.Thus,
Also ensure that：By radial occlusive force, radial seal lip 7 prevents the disengagement of two rings by force closure in transport.
In a word, the present invention relates to a kind of cassette seal for sealing journal bearing, wherein, cassette seal has two
The individual ring moving relative to each other and two rings have hollow cylindrical part and radially extending portion, wherein, in fortune
In row state, hollow cylindrical part is diametrically opposed puts, and radially extending portion is opposite in the axial direction.Target is：Improve
The efficiency of seal and be simultaneously capable of the simple installation of cassette seal.This to realize in the following way：Second circle
The external diameter of the radially extending portion of ring is more than the maximum inner diameter of the hollow cylindrical part of the first ring, and is less than the first ring
Hollow cylindrical part external diameter.Thus, it is possible to produce labyrinth-like seal in the case of identical material, it is preferably protected
The rolling chamber of the inside of shield cassette seal and then also journal bearing, against external action, such as moisture and dirt particle.
Reference table
1 clutch shaft bearing part
2 second bearing parts
3 second rings
4 first rings
5 elastic parts
6 radial seal lips
7 radial seal lips
8 axial seal lips
9 pressing in tools
10 installing auxiliary parts
11 radial sealing gaps
12 axial seal gaps
13 end segments
14 conical press-in faces
Claims (6)
1. it is used for sealing the cassette seal of journal bearing, wherein, described cassette seal has two and can transport toward each other
Dynamic ring (3,4), and the first ring (4) and the second ring (3) have hollow cylindrical part and radially extending portion, its
In, in running status, described hollow cylindrical part is diametrically opposed to be put, and described radially extending portion is in the axial direction
Opposite, wherein, the described hollow cylindrical part of described first ring (4) and rotation axis relatively seal than described box
Arbitrarily other hollow cylindrical part of part have bigger external diameter (Ra2), in order to be arranged in the bearing portion of described journal bearing
Point internal it is characterised in that external diameter (the R of the described radially extending portion of described second ring (3)a1) it is more than described first ring
(4) internal diameter (R of described hollow cylindrical parti), and the external diameter of the described radially extending portion of described second ring (3)
(Ra1) less than described first ring (4) described hollow cylindrical part external diameter (Ra2) it is characterised in that described first lap
Ring (4) has an elastic part (5) with radial seal lip (7) and axial seal lip (8), described second ring (3) described
The longitudinal end section (13) of radially extending portion is used for transferring force to described first ring (4) in process of press in the axial direction
Described hollow cylindrical part on, described radial seal lip (7) and described axial seal lip (8) lie in all the time in press-in
On sealing surface.
2. cassette seal according to claim 1, wherein, described radial seal lip (7) hermetically rests on described
On the described hollow cylindrical part of two rings (3).
3. the cassette seal according to the claims 1, wherein, in two described hollow cylindrical part at least one
Individual for fixing described accordingly ring (3,4).
4. the cassette seal according to the claims 1, wherein, the described radial extension of described second ring (3)
The longitudinal end section (13) divided forms radial gap seal together with race ring or wheel hub.
5. the cassette seal according to the claims 1, wherein, the described radial extension of described second ring (3)
The described longitudinal end section (13) divided forms axial slits sealing with the described hollow cylindrical part of described first ring (4)
Part.
6. the cassette seal according to the claims 1, wherein, described cassette seal has sealing labyrinth shape portion,
And described sealing labyrinth shape portion forms pre-sealed portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412369.3A CN104314990B (en) | 2009-11-24 | 2010-11-17 | Cassette seal and installation method for journal bearing |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009055647.8 | 2009-11-24 | ||
| DE102009055647.8A DE102009055647B4 (en) | 2009-11-24 | 2009-11-24 | Installation procedure of a cartridge seal in a radial bearing |
| PCT/EP2010/067664 WO2011064126A2 (en) | 2009-11-24 | 2010-11-17 | Cassette seal for a radial bearing and installation method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410412369.3A Division CN104314990B (en) | 2009-11-24 | 2010-11-17 | Cassette seal and installation method for journal bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102656379A CN102656379A (en) | 2012-09-05 |
| CN102656379B true CN102656379B (en) | 2017-02-22 |
Family
ID=43569367
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410412369.3A Expired - Fee Related CN104314990B (en) | 2009-11-24 | 2010-11-17 | Cassette seal and installation method for journal bearing |
| CN201080053302.5A Expired - Fee Related CN102656379B (en) | 2009-11-24 | 2010-11-17 | Cassette seal for a radial bearing and installation method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410412369.3A Expired - Fee Related CN104314990B (en) | 2009-11-24 | 2010-11-17 | Cassette seal and installation method for journal bearing |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2504591A2 (en) |
| CN (2) | CN104314990B (en) |
| BR (1) | BR112012012267A2 (en) |
| DE (1) | DE102009055647B4 (en) |
| RU (1) | RU2557102C2 (en) |
| WO (1) | WO2011064126A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2949972B1 (en) * | 2014-05-26 | 2017-03-15 | Carl Freudenberg KG | Cassette seal |
| JP6471597B2 (en) * | 2015-04-17 | 2019-02-20 | 株式会社ジェイテクト | Manufacturing method of wheel bearing device |
| JP6477204B2 (en) * | 2015-04-28 | 2019-03-06 | 株式会社ジェイテクト | Method of assembling bearing device for wheel |
| CN107165945B (en) * | 2017-07-24 | 2023-05-26 | 江苏新瑞齿轮***有限公司 | Gear box and bearing sealing mechanism |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6111022U (en) * | 1984-06-25 | 1986-01-22 | エヌティエヌ株式会社 | Bearing sealing device |
| SU1733752A1 (en) * | 1989-05-31 | 1992-05-15 | С.И.Иванов и С.Ф.Левкин | Method for assembling bearing seal |
| JP3304602B2 (en) * | 1994-04-25 | 2002-07-22 | 日本精工株式会社 | A method of arranging balls constituting a ball bearing at equal intervals |
| JP4099532B2 (en) * | 2002-04-03 | 2008-06-11 | 内山工業株式会社 | Combination seal |
| JP2004084795A (en) * | 2002-08-27 | 2004-03-18 | Koyo Seiko Co Ltd | Sealing device of rolling bearing |
| JP2004084796A (en) * | 2002-08-27 | 2004-03-18 | Koyo Seiko Co Ltd | Sealing device of rolling bearing |
| JP2004169761A (en) * | 2002-11-18 | 2004-06-17 | Nsk Ltd | Double row tapered rolling bearing with combined seal ring |
| JP4503237B2 (en) * | 2003-04-04 | 2010-07-14 | 内山工業株式会社 | Combination seal and bearing unit |
| JP4924789B2 (en) | 2005-06-28 | 2012-04-25 | Ｎｏｋ株式会社 | Sealing device |
| JP2007064295A (en) * | 2005-08-30 | 2007-03-15 | Jtekt Corp | Ring-shape sealing device assembly method for roller bearing |
| JP5003862B2 (en) * | 2006-03-31 | 2012-08-15 | Ｎｏｋ株式会社 | Sealing device |
| JP2007298076A (en) * | 2006-04-28 | 2007-11-15 | Jtekt Corp | Ring type sealing device of roller bearing and its manufacturing method |
| JP2008128397A (en) * | 2006-11-22 | 2008-06-05 | Jtekt Corp | Sealing device |
| DE102007057962B4 (en) * | 2007-12-01 | 2022-04-14 | Schaeffler Technologies AG & Co. KG | Cassette seal and wheel bearing with the cassette seal |
| CN201330799Y (en) * | 2008-11-30 | 2009-10-21 | 湖北新火炬科技股份有限公司 | Hub assembly with multi-lip and multi-chamber seal structure |
| CN201339657Y (en) * | 2008-12-08 | 2009-11-04 | 新昌金涛轴承有限公司 | Double-row angular contact ball bearing |
-
2009
- 2009-11-24 DE DE102009055647.8A patent/DE102009055647B4/en active Active
-
2010
- 2010-11-17 CN CN201410412369.3A patent/CN104314990B/en not_active Expired - Fee Related
- 2010-11-17 BR BR112012012267A patent/BR112012012267A2/en not_active Application Discontinuation
- 2010-11-17 WO PCT/EP2010/067664 patent/WO2011064126A2/en active Application Filing
- 2010-11-17 CN CN201080053302.5A patent/CN102656379B/en not_active Expired - Fee Related
- 2010-11-17 EP EP10784477A patent/EP2504591A2/en not_active Ceased
- 2010-11-17 RU RU2012126139/11A patent/RU2557102C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN102656379A (en) | 2012-09-05 |
| CN104314990B (en) | 2018-04-10 |
| DE102009055647A1 (en) | 2011-05-26 |
| CN104314990A (en) | 2015-01-28 |
| RU2012126139A (en) | 2013-12-27 |
| WO2011064126A3 (en) | 2011-08-18 |
| RU2557102C2 (en) | 2015-07-20 |
| WO2011064126A2 (en) | 2011-06-03 |
| EP2504591A2 (en) | 2012-10-03 |
| BR112012012267A2 (en) | 2016-04-26 |
| DE102009055647B4 (en) | 2019-04-18 |
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