CN100370160C - Bearing with sealing device - Google Patents
Bearing with sealing device Download PDFInfo
- Publication number
- CN100370160C CN100370160C CNB2004100901714A CN200410090171A CN100370160C CN 100370160 C CN100370160 C CN 100370160C CN B2004100901714 A CNB2004100901714 A CN B2004100901714A CN 200410090171 A CN200410090171 A CN 200410090171A CN 100370160 C CN100370160 C CN 100370160C
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- China
- Prior art keywords
- mentioned
- bearing
- lip
- seal arrangement
- otch
- 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
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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
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7813—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for tapered roller bearings
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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
- F16C33/726—Sealings with means to vent the interior of the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings 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
- F16C2326/00—Articles relating to transporting
- F16C2326/10—Railway vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The sealing device 30 has a rubber seal main body 34, the seal main body 34 has a disc part 35 extended in the radial direction, a main lip 38 axially expanded from an inner-diameter end part of the disc part 36, and a dust lip 40 expanded to a side opposite to the main lip 38 from the inner-diameter end part of the disc part 36, a slit 44 is axially penetrated through the disc part 36, and the dust lip 40 is provided with a rib 48.
Description
Technical field
The present invention relates to have the bearing of seal arrangement.
Background technique
As the bearing that has seal arrangement, representative have a railway vehicle axletree bearing.As shown in Figure 4, the railway vehicle axletree is made of following main composition element with bearing, i.e. bearing outer ring 2, pair of bearings inner ring 4, multiple row tapered roller 6 and the retainer 8 that each row tapered roller 6 kept predetermined distance at circumferencial direction.Bearing outer ring 2 is to form the multiple row track at inner peripheral surface, is assembled in the no illustrated axle box.On the one hand, bearing inner race 4 chimeric with the shaft end of axletree 10, form track at outer circumferential face.Tapered roller 6 is present between the track of the track of bearing outer ring 2 and bearing inner race 4.At the two end part of bearing outer ring 2 seal arrangement 20 is installed.Across pair of bearings inner ring 4, in the shaft end side of axletree flinger ring 12 is set, at its opposition side bonnet 14 is set.And the Sealing of seal arrangement 20 slips with magnitude of interference and flinger ring 12 and the bonnet 14 of regulation.
As shown in Figure 5, seal arrangement 20 is made of shell 16, metal ring 18, metal-cored (core gold) 22 and Sealing 24.Shell 16 is to be made of metal, formation has the ladder barrel shape, be pressed into the inner peripheral surface of bearing outer ring 2 in bigger diameter end portion, on middle footpath portion and path end, between the end difference aperture surface of bonnet 14 (or flinger ring 12) and annular slot, constitute labyrinth.Metal ring 18 be section for falling L shaped shape, constitute by cylindrical part and plectane portion, chimeric at the aperture surface of the middle footpath of cylindrical part and shell 16 one.The axle direction end face of outer diametric plane of the end difference of bonnet 14 (or flinger ring 12) and primary seal 26a constitutes easy labyrinth.Section is for the sealing metal core 22 of the word of falling L shape is embedded into the inboard of this metal ring 18, becomes the three-layer structure of shell 16, metal ring 18 and metal-cored 22.
In general, with in the bearing, the bearing private side is main lip 26a at the railway vehicle axletree, and the bearing outer side is dirt lip 26c.Main lip 26a flows out for the oiling agent (lubricating grease) that does not make bearing inside, guarantee the clamping force stipulated with the tube reducing power of the coordinate force of main lip 26a and garter spring 28, the coordinate force of main lip 26a is by the difference expression of the internal diameter size of the outside dimension of flinger ring 12 or bonnet 14 etc. and lip front end.On the one hand, dirt lip 26c only applies the clamping force of regulation with the coordinate force of dirt lip 26c, prevent that foreign matter or moisture from invading from the outside, the coordinate force of dirt lip 26c is with the difference expression of the internal diameter size of the outside dimension of flinger ring 12 or bonnet 14 etc. and lip front end.Usually on the annulus between main lip 26a and the dirt lip 26c, scribble lubricating grease and use as the Sealing lip is lubricated.In addition, what Fig. 5 represented is the example of dirt lip 26c for bilayer, also has plenty of one deck.
As mentioned above, in existing seal arrangement, formed the compound seal construction of most labyrinths and direct contact seal part, as pursuing the result who improves the Sealing performance, formed pressure chamber's structure of outside pressure chamber PB, inside pressure chamber PC, outside pressure chamber PB is formed by metal ring 18 and metal-cored 22, and inside pressure chamber PC is formed by the outer diametric plane of axletree and main lip 26a or dirt lip 26c.The PA spindle holds the inner space.And PA, PB, PC also represent the pressure of this space or each chamber except representing bearing interior space, outside pressure chamber and inside pressure chamber respectively.
Bearing temperature rises in the running, lowers the temperature, returns to normal temperature when shutting down.This temperature variation is to make above-mentioned two pressure differences (PB～PC) becomes barotropic state or negative pressure state.Bearing is used in repeatedly at this.Promptly along with bearing operation, bearing temperature rises, and the pressure of outside pressure chamber PB or inside pressure chamber PC raises, and becomes barotropic state.At this moment, the sealing of inside pressure chamber PC is by the decision of the cooperation clamping force of dirt lip 26c, and, because to the outside air exhaust, therefore boosting to a certain level pressure power when above, interior pressure air spills from this dirt lip 26c, does not continue intensification.But outside pressure chamber PB continues to boost to certain pressure to the bearing interior space exhaust.Its result, it is poor that the pressure of the pressure of outside pressure chamber PB and inside pressure chamber PC produces, and the cylindrical part 26b of Sealing is pushed to sides such as flinger ring 12 or bonnets 14, and the clamping force of Sealing is increased.Surpassing the clamping force that needs has increased the wearing and tearing of Sealing lip or flinger ring etc.
After stopping bearing operation, temperature reduces, and outside pressure chamber PB and inside pressure chamber PC return to normal temperature, and pressure reduction is eliminated gradually.But the result that pressure air is deflated is that two PB of pressure chamber, PC become negative pressure state, under the state that is attracted on flinger ring 12 or the bonnet 14, is keeping increasing the state of the clamping force of Sealing.That is, Sealing becomes the adsorbed state of comprehensive engagement.
Then, behind the bearing that restarts to turn round, two PB of pressure chamber, PC return to barotropic state from negative pressure, and absorption is released.At this moment, because the heating that produces because of bearing operation is preferentially transferred heat to outside pressure chamber PB, so inside pressure chamber PC postpones to become barotropic state in time.In the time that the recovery to malleation is delayed, absorption is not released, and two PB of pressure chamber, PC keep the pressure reduction state, and Sealing is turned round under the state that clamping force increases.
One side repeats above-mentioned variation, the wearing and tearing constantly of flinger ring or Sealing lip, and lip contact amplitude strengthens, and inside pressure chamber PC need to recover long-time to malleation.Its result, because high clamping force, bearing is in the temperature that exceeds imagination for a long time and is risen, and has oiling agent (lubricating grease) premature aging or bearing play and reduces and then cause the danger that makes bearing produce critical failure.
Fig. 6 represents the variation of these pressure oscillations.This figure represents pressure, transverse axis express time with the longitudinal axis, during with bearing operation, when stopping, running pressure P A, PB when beginning once more, the change curveization of PC.From various test result, under the PC and the big situation of the difference of PB of running when beginning once more, has the tendency that is easy to generate lip absorption.
Summary of the invention
The invention provides the band seal arrangement bearing that has seal arrangement, temperature rises even the sealing device is along with the running of bearing, also the sealability that can play stably for a long time.
The present invention is a kind of bearing that has seal arrangement, it is the bearing that has seal arrangement, it is characterized in that, above-mentioned seal arrangement has the sealed body that rubber is made, and above-mentioned sealed body has: the round plate that extends to radial direction, the main lip that axially extends from the inner diameter end of above-mentioned round plate, from the inner diameter end of above-mentioned round plate to the dirt lip of extending with the opposition side of above-mentioned main lip with extend and be connected the cylindrical part of above-mentioned main lip and above-mentioned dirt lip at axle direction roughly; Be arranged on the otch that axle direction connects on above-mentioned round plate, on above-mentioned dirt lip flange be set, the envelope internal diameter size of above-mentioned flange is greater than the internal diameter size of the front end of above-mentioned dirt lip.
By the otch that connects the sealed body round plate is set, outside pressure chamber PB is communicated with outside air, PB maintains normal pressure with the outside pressure chamber.Otch among the present invention can be as the literal meaning with the gap shape that cutter cuts, also can be only allow to a direction ventilation, can not be to the so-called ventilating hole (one-way exhaust valve that does not allow outside air to invade) of ventilation in the other direction.
In addition, the flange of jut is set, when dirt lip begins to adsorb, in other words on dirt lip, the lip front end will topple over to the outer diametric plane of oil ring etc., during with axial comprehensive engagement significantly, a part of lip front end is lifted, is communicated with outside air.
The position that otch is set is the direction of 12 in clock and watch preferably.The position of otch is arranged on the direction of 12 in clock and watch, is because can prevent the intrusion of sealing.
Preferably otch and flange are arranged on position not relative on the diametric(al).Can prevent that like this sealing invades near Sealing from the outside.For example, when otch being arranged on the position of 12 in clock and watch, on the position of avoiding 6 in clock and watch, flange is set.In addition, a flange is set at least, if be provided with two, the circumferential locations of otch is in the centre of two flanges.
The circumferencial direction phase place of otch is preferably consistent with the circumferencial direction phase place of flange.The position of otch can be confirmed with eyes, but the position of flange that can't see from the outside can not be confirmed.At this, the phase place of the circumferencial direction by making otch and flange is consistent, the position that can hold flange by the position of otch.
The envelope internal diameter size of flange is more preferably greater than the internal diameter size of dirt lip.Because by such formation, flange does not contact with the outer diametric plane of flinger ring or bonnet under normal conditions, so dirt lip is brought into play the intrusion of sealing, anti-sealing really.
As the material that constitutes sealed body, the most handy fluorine class rubber.Material by using hard more is as the material of sealed body, and the cylindrical part of sealed body especially is not easy distortion.Therefore, even the oiling agent of bearing inside (lubricating grease) focuses near the connection obstacle that otch is, cause otch, the outside pressure chamber PB that is positioned at the outside diameter of sealed body cylindrical part begins to become malleation, because the cylindrical part of sealed body is not easy distortion, the therefore absorption that is not easy to produce dirt lip.
In addition, the present invention is not limited only to railway vehicle axletree bearing, and other the mechanical device that has seal arrangement at the two ends of bearing notch is suitable for too.In addition, this bearing also can be a tapered roller bearing.Dirt lip is not limited only to one deck, and double-deck form also is same.
According to the present invention, the band seal arrangement that has seal arrangement bearing can be provided, the sealing device is, even temperature rises along with the running of bearing, the also sealability that can play stably for a long time.
Because otch makes outside pressure chamber (PB) be communicated with outside air, therefore, even along with running, the temperature of bearing rises, becomes malleation, and this pressure air is carried out exhaust, and outside pressure chamber (PB) is maintained at normal pressure.Therefore the clamping force of Sealing can be not excessive.
In addition, because flange is arranged, therefore, even dirt lip begins absorption, in other words, even dirt lip begins to topple over, the lip front end does not make dirt lip produce absorption with outer diametric plane comprehensive engagements such as axial big width and flinger rings yet.The lip front end is lifted partially, be communicated with outside air.In addition, because this flange do not contact with flinger ring, the lip front end is not lifted, therefore, the performance of Sealing there is not harmful effect under the state that the lip front end is not toppled over.
Description of drawings
Fig. 1 is the sectional arrangement drawing of the seal arrangement of expression embodiment of the present invention.
Fig. 2 is the main position sectional drawing of band seal arrangement bearing.
Fig. 3 is the sectional arrangement drawing of railway vehicle axletree with bearing.
Fig. 4 is a sectional arrangement drawing of using bearing for the railway vehicle axletree that prior art is described.
Fig. 5 is the main position enlarged view of Fig. 4.
Fig. 6 is the plotted curve of expression bearing pressure change.
Fig. 7 be for flange envelope internal diameter size is described with the similar sectional drawing of Fig. 1.
Fig. 8 be for the flange effect is described with the similar sectional drawing of Fig. 1.
Embodiment
Below, according to Fig. 1～Fig. 3, be example with the situation of bearing (Fig. 3) to be applicable to the railway vehicle axletree, describe with regard to embodiments of the present invention.Fig. 1 is the sectional drawing of the seal arrangement of expression embodiment of the present invention, is equivalent to the enlarged view of the seal arrangement part among Fig. 2.Fig. 2 is the main position enlarged view that railway vehicle axletree shown in Figure 3 is used bearing.With the practically identical element of the element among above-mentioned Fig. 4, Fig. 5 with identical symbol.
As depicted in figs. 1 and 2, the railway vehicle axletree with bearing as shown in Figure 4, constitute by following main composition element, i.e. bearing outer ring 2, pair of bearings inner ring 4, multiple row tapered roller 6 and the retainer 8 that each row tapered roller 6 kept in a circumferential direction predetermined distance.Bearing outer ring 2 is to form the multiple row track at inner peripheral surface, is installed in the no illustrated axle box.On the one hand, bearing inner race 4 chimeric with the shaft end of axletree 10, form track at outer circumferential face.Between the track of tapered roller 6 existence and bearing outer ring 2 and the track of bearing inner race 4.At the two end part of bearing outer ring 2 seal arrangement 30 is installed.Shaft end side at axletree is provided with flinger ring 12, at its opposition side bonnet 14 is set and clamps pair of bearings inner ring 4.And the lip of seal arrangement 30 slips with magnitude of interference and flinger ring 12 and the bonnet 14 of regulation.
As shown in Figure 1, seal arrangement 30 by shell 16, metal ring 18, metal-cored 32 and sealed body 34 constitute.Shell 16 is to be made of metal, and has the ladder barrel shape, is pressed into the inner peripheral surface of bearing outer ring 2 in bigger diameter end portion, on middle footpath portion and path end, constitutes labyrinth between the end difference aperture surface of bonnet 14 (or flinger ring 12) and annular slot.Metal ring 18 is that section is the word shape of falling L, is made of cylindrical part and plectane portion, and is chimeric at the aperture surface of the middle footpath of cylindrical part and shell 16 one.On the axle direction end face of outer diametric plane of the end difference of bonnet 14 (or flinger ring 12) and primary seal 38, constitute easy labyrinth.Section is the inboard that metal-cored 32 of the shape of falling L is embedded into this metal ring 18, becomes the three-layer structure of shell 16, metal ring 18 and metal-cored 32.
Sealed body 34 is freezed on the round plate 33 that extends to metal-cored 32 radial direction.Sealed body 34 is made by having stable on heating rubber material, has the section shape that U word is roughly fallen.Sealed body 34 is made of round plate 36, main lip 38 and dirt lip 40.Round plate 36 is freezed on metal-cored 32 round plate 33 by one.Main lip 38 extends to axle direction roughly from the inner diameter end of Sealing round plate 36.Dirt lip 40 from the inner diameter end of Sealing round plate 36 towards extending with the rightabout oblique below of main lip 38.Shown here is that dirt lip 40 is states of one deck, also can be double-deck (with reference to Fig. 5).Symbol 39 is meant the cylindrical part that connects main lip 38 and dirt lip 40.As shown in Figure 2, cylindrical part 39 extends in axle direction roughly under the state that is assembled on the assigned position, forms outside pressure chamber PB, forms inside pressure chamber PC at internal side diameter at its outside diameter.The annulus that the lubricating grease of the lubricated usefulness of Sealing is painted between main lip 38 and the dirt lip 40 is on the PC of inside pressure chamber.Guarantee the clamping force stipulated with the tube reducing power of the coordinate force of main lip 38 and garter spring 26, the oiling agent (lubricating grease) of bearing inside is not flowed out, and the coordinate force of main lip 38 is represented by the outside dimension of flinger ring 12 or bonnet 14 etc. and the poor of internal diameter size of lip front end.On the one hand, 40 coordinate force with dirt lip 40 of the dirt lip of bearing outer side apply the clamping force of regulation, prevent that foreign matter or moisture from invading from the outside, the coordinate force of dirt lip 40 is represented with the difference of the internal diameter size of the outside dimension of flinger ring 12 or bonnet 14 etc. and lip front end.
By circular recess 37 is set, on the round plate 36 of sealed body 34, form thinner wall section 42.For this reason, on metal-cored 32 round plate 33, through hole is set.And, on this thinner wall section 42, establish the otch 44 that erects in-line.The effect of this otch 44 is, be communicated with outside air by making outside pressure chamber PB, thereby when bearing operation or when stopping positive pressure air or the negative pressure air of outside pressure chamber PB are emitted in outside air, keep normal pressure always.
This bearing is assembled in the mechanical device in the following manner, and promptly the concavo-convex impression with the seal surface that records manufacturer and model on the surface is a benchmark, makes the above-below direction unanimity.At this, with thinner wall section 42 corresponding these concavo-convex impression settings, thinner wall section 42 is positioned on the position of 12 in clock and watch during assembling.On the position that thinner wall section is arranged on 12 in clock and watch, though water will drip or water droplet under atmosphere under the situation about using, do not worry that water invades from otch 44 yet.
The flange 48 of overshooting shape is set on the internal side diameter plane of inclination 46 of dirt lip 40.Example shown in Fig. 1 is to be that one group flange 48 is provided with three groups at circumferencial direction with the distance that equates with two.When the front end 50 of dirt lip 40 adsorbs, begins when the outer diametric plane of flinger ring 12 or bonnet 14 is toppled over, flange 48 beginnings and its surperficial contact (Fig. 8).As shown in Figure 7, the envelope internal diameter size of dirt lip 40 of part that flange 48 is set forms the roughly the same internal diameter size of outside dimension with flinger ring 12 or bonnet 14 greater than the internal diameter of the front end 50 of dirt lip 40.On the contrary, the negative pressure state of inside pressure chamber PC is released, and when the front end of dirt lip 40 50 recovers normal postures, does not hinder the original contact condition of dirt lip 40.Its result, the front end 50 of dirt lip 40 is only with axial when beginning significantly closely to contact, as shown in Figure 8, just with dirt lip 40 front ends all steering portions lift, be communicated with outside air.
About the position of flange 48, be chosen to position not relative with otch 44 on diametric(al) at circumferencial direction.Recover normal postures even this is a front end 50 for the dirt lip 40 that will topple over, also will prevent the intrusion of the water that drips.Preferably flange 48 is arranged on and the roughly the same circumferencial direction of otch 44 mutually on the bit position.
Worry to have under the following situation that is communicated with obstacle with outside air, the oiling agent (lubricating grease) that is bearing inside accumulates near the otch 44, otch is sealed, and the interior voltage rise height of outside pressure chamber PB then preferably adopts the material resemble the more hard ground the fluorine class rubber rubber material as sealed body.Like this, outside pressure chamber PB becomes malleation, inside pressure chamber PC becomes under the situation of negative pressure, and the cylindrical part 39 of sealed body 34 is not easy to flinger ring 12 or the distortion of bonnet 14 sides.
In addition, the bearing of band seal arrangement of the present invention is not limited only to above-mentioned mode of execution, in the scope that does not exceed aim of the present invention, certainly carries out various variations.
Claims (5)
1. bearing that has seal arrangement, it is the bearing that has seal arrangement, it is characterized in that, above-mentioned seal arrangement has the sealed body that rubber is made, and above-mentioned sealed body has: the round plate that extends to radial direction, the main lip that axially extends from the inner diameter end of above-mentioned round plate, from the inner diameter end of above-mentioned round plate to the dirt lip of extending with the opposition side of above-mentioned main lip with extend and be connected the cylindrical part of above-mentioned main lip and above-mentioned dirt lip at axle direction roughly; Be arranged on the otch that axle direction connects on above-mentioned round plate, on above-mentioned dirt lip flange be set, the envelope internal diameter size of above-mentioned flange is greater than the internal diameter size of the front end of above-mentioned dirt lip.
2. the bearing of band seal arrangement as claimed in claim 1 is characterized in that, above-mentioned otch is arranged on the position of 12 in clock and watch direction.
3. the bearing of band seal arrangement as claimed in claim 1 is characterized in that, above-mentioned otch is arranged on position not relative on the diametric(al) with above-mentioned flange.
4. the bearing of band seal arrangement as claimed in claim 1 is characterized in that, the circumferencial direction phase place of above-mentioned otch is consistent with the circumferencial direction phase place of above-mentioned flange.
5. the bearing of band seal arrangement as claimed in claim 1 is characterized in that, above-mentioned Sealing is made of fluorine class rubber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP372381/2003 | 2003-10-31 | ||
| JP2003372381A JP2005133885A (en) | 2003-10-31 | 2003-10-31 | Bearing with sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1611805A CN1611805A (en) | 2005-05-04 |
| CN100370160C true CN100370160C (en) | 2008-02-20 |
Family
ID=34648785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100901714A Expired - Fee Related CN100370160C (en) | 2003-10-31 | 2004-10-29 | Bearing with sealing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005133885A (en) |
| CN (1) | CN100370160C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4811194B2 (en) * | 2006-08-28 | 2011-11-09 | 日本精工株式会社 | Sealing device for bearing unit and bearing unit |
| JP2010151279A (en) * | 2008-12-26 | 2010-07-08 | Ntn Corp | Wheel bearing device with rotation speed detector |
| CN104662109B (en) | 2012-09-28 | 2017-08-01 | 凸版资讯股份有限公司 | Silver-colored ink composite, electric conductor and communication equipment |
| CN105333017B (en) * | 2014-07-02 | 2017-12-15 | 通用电气公司 | Sealing device, wind-driven generator and Grease Collection method |
| JP6534574B2 (en) * | 2015-07-27 | 2019-06-26 | Nok株式会社 | Sealing device |
| JP7038619B2 (en) * | 2018-07-13 | 2022-03-18 | Nok株式会社 | Sealing device |
| US10619674B1 (en) * | 2019-01-14 | 2020-04-14 | Aktiebolaget Skf | Bearing assembly |
| CN110925313A (en) * | 2019-12-24 | 2020-03-27 | 安徽江淮汽车集团股份有限公司 | Sealing ring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017025A (en) * | 1990-04-05 | 1991-05-21 | The Timken Company | Bearing assembly for a shaft journal |
| US5292199A (en) * | 1993-05-07 | 1994-03-08 | Ford Motor Company | Axle wheel seal and bearing arrangement for a motor vehicle |
| JPH0968232A (en) * | 1995-08-30 | 1997-03-11 | Ntn Corp | Bearing seal device |
| US5890812A (en) * | 1995-07-21 | 1999-04-06 | Skf Industrie S.P.A. | Rolling contact bearing sealing device |
| CN2328826Y (en) * | 1996-12-04 | 1999-07-14 | 铁道部四方车辆研究所 | Rubber labyrinth lorry shaft seal device |
| JP2001020962A (en) * | 1999-07-06 | 2001-01-23 | Koyo Seiko Co Ltd | Sealing device for rolling bearing |
| CN2442028Y (en) * | 2000-07-28 | 2001-08-08 | 万向钱潮股份有限公司 | Universal joint bearing with inner arc oil seal |
| JP2002283805A (en) * | 2001-03-26 | 2002-10-03 | Nsk Ltd | Method of assembling hub unit for automobile |
-
2003
- 2003-10-31 JP JP2003372381A patent/JP2005133885A/en active Pending
-
2004
- 2004-10-29 CN CNB2004100901714A patent/CN100370160C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017025A (en) * | 1990-04-05 | 1991-05-21 | The Timken Company | Bearing assembly for a shaft journal |
| US5292199A (en) * | 1993-05-07 | 1994-03-08 | Ford Motor Company | Axle wheel seal and bearing arrangement for a motor vehicle |
| US5890812A (en) * | 1995-07-21 | 1999-04-06 | Skf Industrie S.P.A. | Rolling contact bearing sealing device |
| JPH0968232A (en) * | 1995-08-30 | 1997-03-11 | Ntn Corp | Bearing seal device |
| CN2328826Y (en) * | 1996-12-04 | 1999-07-14 | 铁道部四方车辆研究所 | Rubber labyrinth lorry shaft seal device |
| JP2001020962A (en) * | 1999-07-06 | 2001-01-23 | Koyo Seiko Co Ltd | Sealing device for rolling bearing |
| CN2442028Y (en) * | 2000-07-28 | 2001-08-08 | 万向钱潮股份有限公司 | Universal joint bearing with inner arc oil seal |
| JP2002283805A (en) * | 2001-03-26 | 2002-10-03 | Nsk Ltd | Method of assembling hub unit for automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1611805A (en) | 2005-05-04 |
| JP2005133885A (en) | 2005-05-26 |
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