CN100513812C - Rolling bearing seal device - Google Patents
Rolling bearing seal device Download PDFInfo
- Publication number
- CN100513812C CN100513812C CNB2005100737396A CN200510073739A CN100513812C CN 100513812 C CN100513812 C CN 100513812C CN B2005100737396 A CNB2005100737396 A CN B2005100737396A CN 200510073739 A CN200510073739 A CN 200510073739A CN 100513812 C CN100513812 C CN 100513812C
- Authority
- CN
- China
- Prior art keywords
- end sections
- sealing lip
- seal arrangement
- bearing
- unit
- 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.)
- Active
Links
- 238000005096 rolling process Methods 0.000 title claims description 8
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 17
- 239000011229 interlayer Substances 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000000806 elastomer Substances 0.000 abstract 1
- 239000013536 elastomeric material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
- F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
- 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
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
- F16J15/3256—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette 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
- 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
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention provides a circular metal clamp layer (17) installed on a bearing outer ring (10) to support a sealing component (18). The sealing component (18) can be arranged slidable on the circular metal cover (16) of the bearing inner ring (11). The cover (16) is provided with an axial cylindrical part (16a), with a radial flange (16b) extending from one lateral side. A terminal part (161) with a maximum diameter (D2) extends from the opposite side, with the diameter of the terminal part larger than the external diameter (D) of the axial cylindrical part (16a). An elastomer sealing component (18) forms another sealing lip (21), wherein the sealing lip extends toward the end of the terminal part (161) and the internal diameter (D1) of the sealing lip is smaller than the external diameter (D) of the terminal part (161), with the purpose to perform reciprocity in such a way through the terminal part to keep the sealing device in a pre-connected state in the axial direction, wherein the state is easy for the proper mounting of the sealing device in the bearing.
Description
Technical field
The present invention relates to a kind of rolling bearing seal device.
Background technique
The kind of the seal arrangement of knowing as shown in Figures 1 and 2.According to shown in Figure 1, seal arrangement 14 has been sealed in rolling bearing inner ring 11 and outer ring 10 cavity or space 13.The endless metal interlayer 16 of a L type cross section of seal arrangement 14, brainstrust is referred to as " centrifuge " or " guard ring ", this metal sandwich is contained on the inner ring 11, and therewith rotate simultaneously, another non-rotating unit 15 of seal arrangement 14 is fixed on the fixing outer ring 10 simultaneously.There is an endless metal interlayer 17 this non-rotating unit, the seal element of being made by elastomeric material 18 that is connected its top has formed sealing lip 19 and 20, in order axially and radially to produce seal action, they can go up slip at the surperficial 16c and the 16d of " centrifuge " 16.In US patent 4.770.425, a kind of like this seal arrangement is described.
Before seal arrangement is packed bearing into, rotation with non-rotary unit will be temporarily on a relative position mutually pre-connection together, shared position of crouching was identical when used under the state of packing into it basically this position.Assembling toward bearing unit the inside is finished by an automatic equipment, and it catches the seal arrangement of pre-connection, and is pressed in the cavity between the race ring of bearing unit.
The shortcoming that occurs in aforesaid seal arrangement is that the situation of the described pre-connection in front is very unreliable.When in the stage of carrying, handling and pack into, the seal arrangement of pre-connection has been subjected to bump, make rotation and non-rotary unit between position to axial variation has taken place, just there is this risk in that, has promptly assembled described seal arrangement mistakenly.Can not be when the sealing lip of seal element well with respect to its surface of contact location, sliding contact does not exist from the beginning so; On the contrary, when the contact pressure uneven distribution, the concentrated wear of the sealing lip made by elastomeric material will appear after certain hour.Seal arrangement all no longer can satisfy its function in either case, just may allow pollutant (as water, dust, mud, booty) enter, this is in the bearing unit (as ball or roller and raceway) that contacts that rolls for the lubricating grease in bearing and those is to be harmful to.Must be noted that at this defective seal arrangement of assembling generally can not be found when visual examination.
Also proposed seal arrangement as shown in Figure 2, wherein to have one be the cross section of U type to guard ring 16 basically, and it has a radial flange 42 in axial inboard.This flange must insert elastomeric seal member 18 or with it after the pre-connection, bend to illustrated radial direction before seal arrangement is packed bearing unit at cover 16.The seal arrangement of type is well known by WO98/26202, EP 0 508 013, US 5,813 675 as shown in Figure 2.
Summary of the invention
The objective of the invention is, guarantee that seal arrangement is installed on the bearing unit well.Another object of the present invention is to simplify and accelerate the installation of seal arrangement with respect to prior art recited above.
Seal arrangement according to rolling bearing of the present invention comprises:
One radially is in inboard unit, it is contained in radially being on the inboard race ring of bearing securely, wherein be in inboard unit and comprise an endless metal cover, on it, formed a cylindrical part that extends at axial direction, this cylindrical part has one first side, with one second side and the outer diameter D of first side thereof opposite
A radial flange, it stretches out along radial direction from first side of axial cylindrical shape part,
An end sections, it extends from second edgewise bend of axial cylindrical shape part, has maximum dimension D 2 simultaneously, and this diameter is greater than outer diameter D,
Unit outside radial direction is in, it is contained on the race ring that radially being in the outside of bearing securely, and the unit that wherein is in the outside comprises:
Endless metal interlayer and an elastomeric seal member with minimum diameter D3, it is connected on the endless metal interlayer, has formed above the elastomeric seal member at this:
At least one sealing lip, the radial flange of coaxial cylindrical part of sealing lip and/or metal covering contacts, and has also formed simultaneously
Another sealing lip, it extends towards end sections, has inside diameter D 1 simultaneously, and this internal diameter is less than the maximum dimension D 2 of end sections;
Wherein satisfy:
D3>D2>D1>D，
Therefore, mutual axial motion for two unit of restriction before finally packing bearing at seal arrangement, outer side unit can flexibly be widened elastomeric seal member to cross end sections and to reach the pre-connection state by the effect of power, thereby pre-connection is to interior side unit, in end sections described in this pre-connection state and another sealing lip acting in conjunction.
Also want further clear and definite these and other target and advantage below, be implemented by seal arrangement according to the present invention.
Description of drawings
As embodiment, preferred embodiment now by means of one of description of drawings.As shown in the figure:
The sectional drawing of the conventional seals device of the rolling bearing of packing into of-Fig. 1;
The sectional drawing of the seal arrangement of second known type of-Fig. 2; With
-Fig. 3 is according to the sectional drawing of seal arrangement of the present invention.
Embodiment
With reference to shown in Figure 3, using the same reference character that in Fig. 1 and Fig. 2, had adopted to be used for indicating under the situation identical or units corresponding, whole sealing device represents that with 14 it can be enclosed in the toroidal cavity 13 (not expression in Fig. 3) between the rolling bearing Internal and external cycle.
In specification and claims subsequently, point out the mark and the statement in direction and orientation with " radially ", " axially " or " inside ", " outside ", all should go to understand with respect to the spin axis and this state of bearing, be loaded in the bearing at seal arrangement described in this state.
Described seal arrangement 14 comprises not rotary unit 15 of a rotary unit 16 and.As next further specifying, these two unit can mechanically and momently interconnect.
Described rotary unit 16 comprises an endless metal cover, and it has formed an axial cylindrical shape part 16a, and it can be pushed into the inner ring 11 of bearing by the effect of power.Extend a radial flange 16b from cylindrical part 16a be called as " the axially outside " here, its radial dimension is more a little bit smaller than the radial dimension of the cavity 13 that will seal.From the opposite of cylindrical part 16a (perhaps being positioned at the inboard at axial direction), extend a conical end part 161 according to the present invention, it bends towards seal arrangement 14 1 sides, simultaneously behind the bearing of packing into, towards bearing inside.
Described not rotary unit 15 comprises an endless metal interlayer 17, this metal sandwich has a cylindrical part 17a who radially is in the outside, axial alignment, this cylindrical part can insert in the outer ring of bearing by the effect of power, described not rotary unit also comprises a convex shoulder 17b who radially extends basically, and the seal element 18 of an elastomeric material (shown in Figure 3 is undeformed state) is attached thereto.In this example, seal element 18 has sealing lip 19 and 20, and they are 16c or 16d slip surfacewise, axially and radially to apply seal action.
According to the present invention, elastomeric seal member 18 is all the time at axial inboard another sealing lip 21 that forms, and the sealing lip is towards conical end part 161 extensions of the cover 16 that rotates itself, to produce the labyrinth sealed effect by this end sections.
The inside diameter D 1 of sealing lip 21 is more a little bit smaller a little than the outer diameter D 2 of conical end part 161, this is desired when connecting for unit 15 and 16 transitory phases, along at the described not rotary unit 15 of the direction axial compression of arrow A shown in Figure 3, wherein seal element 18 is forced to elastic bending, up to crossing conical area 161.This motion becomes possibility in this case, it is the inside diameter D 3 that endless metal cover 17 has a minimum, it is significantly greater than the outer diameter D 2 of conical end part 161, therefore cone-shaped section 161 can be crossed by means of the impact strength of the elastomeric material of seal element 18 in outside or non-rotary unit 15.One reaches pre-connection situation shown in Figure 3, and cone-shaped section 161 just concurs with sealing lip 21 as limit element, will pack on the tram of bearing to be limited in the mutual axial motion between two unit, to hold it in simultaneously.
Advantageously sealing lip 21 has formed a toroidal surface shape surface 21a, it under the state of packing into towards bearing inside, simultaneously centrifugation and thus in the bearing internal element shuttling movement of lubricating grease from arrow C surfacewise the direction of the radial outward shown in the 21a transmit.
In preferred embodiment, end sections 161 conical or that tilt begins the local thickness attenuation of diagonally extending with respect to columniform axial component 16a from this axial component, so that it is crooked easily.In the another kind of scheme, also can only allow have thinner thickness than it in the part 161 of being bent angularly and the attachment portion 162 between the cylindrical part 16a.
Significantly, can reach the pre-connection state that meets job requirement according to seal arrangement of the present invention, this job requirement is exactly that seal arrangement is installed to the job requirement that the back is accepted in the bearing at it.Therefore as with described in the relevant preamble shown in Figure 1 like that, the risk of mistake installation has been avoided, the while also avoided in Fig. 2 with the desired bending of 42 radial flanges of indicating.
Relevant expert can be clear that the present invention is for obtaining a lot of improvement in the thin portion shown in Fig. 3.Such as taking the arbitrary form that is suitable for quantity, shape and the structure of the sealing lip 19,20 of centrifuge 16 sliding contacts.Rotary unit 16 can comprise other unit in a similar fashion, is used for a buzzing wheel of determining the mechanism that rotatablely moves as another elastomeric seal member and/or one.
Claims (7)
1. the seal arrangement of rolling bearing comprises:
One radially is in inboard unit (16), it is contained in radially being on the inboard race ring (11) of bearing securely, wherein be in inboard unit (16) and comprise an endless metal cover, on it, formed a cylindrical part (16a) that extends at axial direction, this cylindrical part has one first side, with one second side and the outer diameter D of first side thereof opposite
A radial flange (16b), it stretches out along radial direction from first side of axial cylindrical shape part (16a),
An end sections (161), it extends from second edgewise bend of axial cylindrical shape part (16a), has maximum dimension D 2 simultaneously, and this diameter is greater than outer diameter D,
Unit (15) outside radial direction is in, it is contained on the race ring (10) that radially being in the outside of bearing securely, and the unit (15) that wherein is in the outside comprising:
Endless metal interlayer (17) and an elastomeric seal member (18) with minimum diameter D3, it is connected on the endless metal interlayer (17), has formed above the elastomeric seal member at this:
At least one sealing lip (19,20), the radial flange (16b) of coaxial cylindrical part of sealing lip (16a) and/or metal covering (16) contacts, and has also formed simultaneously
Another sealing lip (21), it extends towards end sections (161), has inside diameter D 1 simultaneously, and this internal diameter is less than the maximum dimension D 2 of end sections (161);
Wherein satisfy:
D3>D2>D1>D，
Therefore, for the bearing (10,11) of finally packing at seal arrangement (14) limits the mutual axial motion of two unit (15,16) before, outer side unit (15) can flexibly be widened elastomeric seal member (18) to cross end sections (161) and to reach the pre-connection state by the effect of power, thereby pre-connection is to interior side unit (16), in end sections (161) described in this pre-connection state and another sealing lip (21) acting in conjunction.
2. seal arrangement according to claim 1 is characterized in that, another sealing lip (21) of being mentioned extends towards end sections (161), to play seal action with it jointly.
3. seal arrangement according to claim 2 is characterized in that, another sealing lip (21) of being mentioned forms a labyrinth seal structure with end sections (161).
4. seal arrangement according to claim 1 is characterized in that, end sections (161) is a part inclination or conical basically, and it extends along the direction of bending from second side of axial cylindrical shape part (16a).
5. seal arrangement according to claim 1 is characterized in that, end sections (161) has littler thickness than axial cylindrical shape part (16a), extends described end sections from axial cylindrical shape part.
6. seal arrangement according to claim 1 is characterized in that, the coaxial cylindrical part of end sections (161) (16a) is connected by an attachment portion (162), and this attachment portion has littler thickness than axial cylindrical shape part (16a).
7. seal arrangement according to claim 1, it is characterized in that, another sealing lip (21) has formed one towards the toroidal surface shape surface (21a) of bearing inboard, with help usually the lubricating grease in being present in the bearing internal element on the direction (C) of radial outward surfacewise (21a) produce centrifugation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2004A000340 | 2004-05-21 | ||
| IT000340A ITTO20040340A1 (en) | 2004-05-21 | 2004-05-21 | SEALING DEVICE FOR A ROLLING BEARING |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1724889A CN1724889A (en) | 2006-01-25 |
| CN100513812C true CN100513812C (en) | 2009-07-15 |
Family
ID=35336201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100737396A Active CN100513812C (en) | 2004-05-21 | 2005-05-20 | Rolling bearing seal device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100513812C (en) |
| DE (1) | DE102005019192B4 (en) |
| IT (1) | ITTO20040340A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2918135B1 (en) * | 2007-06-29 | 2009-09-04 | Snr Roulements Sa | BEARING BEARING AND SEAL WITH IMPROVED DYNAMIC BEHAVIOR. |
| DE102009005775B4 (en) * | 2009-01-23 | 2017-05-04 | Ab Skf | Bearing seal arrangement |
| DE112010005439T5 (en) * | 2010-04-02 | 2013-04-04 | Aktiebolaget Skf | Rolling bearing comprising a seal and an annular shield |
| JP2013029129A (en) * | 2011-07-27 | 2013-02-07 | Ntn Corp | Sealed rolling bearing |
| CN103542097B (en) * | 2012-07-10 | 2017-02-22 | 浙江万向精工有限公司 | Integrated sealing ring with centrifugal compensation self-sealing function and magnetic seal sensing function |
| DE102015016642B4 (en) * | 2015-12-17 | 2019-03-14 | Kaco Gmbh + Co. Kg | Radial shaft seal and method for sealing a rotating machine part with a radial shaft seal |
| US10458477B2 (en) * | 2017-03-28 | 2019-10-29 | Minebea Mitsumi Inc. | Seal for rolling bearing and rolling bearing |
| DE102017208285B4 (en) * | 2017-05-17 | 2020-08-06 | Trelleborg Sealing Solutions Germany Gmbh | Sealing ring with 3D printing inlay |
| DE102018101875A1 (en) * | 2018-01-29 | 2019-08-01 | Schaeffler Technologies AG & Co. KG | Wheel bearing, wheel bearing unit and wheel suspension |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4822055A (en) * | 1988-05-17 | 1989-04-18 | General Motors Corporation | Unitized bearing seal assembly |
| US5022659A (en) * | 1988-12-27 | 1991-06-11 | The Timken Company | Seal assembly for antifriction bearings |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT208052Z2 (en) * | 1986-07-08 | 1988-03-31 | Riv Officine Di Villar Perosa | SEALING UNIT SUITABLE FOR INTERPOSING BETWEEN TWO BODIES IN RELATIVE MOTION |
| US5887875A (en) * | 1994-10-03 | 1999-03-30 | Ford Global Technologies, Inc. | Unitary axle seal for a motor vehicle |
| US5813675A (en) * | 1995-10-31 | 1998-09-29 | The Timken Company | Multibarrier seal |
| AU7848998A (en) * | 1996-12-10 | 1998-07-03 | Timken Company, The | Spring-biased seal |
| ITTO980210A1 (en) * | 1998-03-12 | 1999-09-12 | Skf Ind Spa | SEALING DEVICE FOR A ROLLING BEARING |
| DE19938246C5 (en) * | 1999-08-12 | 2004-07-01 | Skf Gmbh | Sealing arrangement for a bearing |
| US6312161B1 (en) * | 2000-03-31 | 2001-11-06 | The Timken Company | End cap for bearing assembly |
| JP2003262233A (en) * | 2002-03-08 | 2003-09-19 | Yamada Seisakusho Co Ltd | Sealing device of water pump bearing |
-
2004
- 2004-05-21 IT IT000340A patent/ITTO20040340A1/en unknown
-
2005
- 2005-04-26 DE DE200510019192 patent/DE102005019192B4/en active Active
- 2005-05-20 CN CNB2005100737396A patent/CN100513812C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4822055A (en) * | 1988-05-17 | 1989-04-18 | General Motors Corporation | Unitized bearing seal assembly |
| US5022659A (en) * | 1988-12-27 | 1991-06-11 | The Timken Company | Seal assembly for antifriction bearings |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005019192A1 (en) | 2005-12-08 |
| DE102005019192B4 (en) | 2015-05-13 |
| CN1724889A (en) | 2006-01-25 |
| ITTO20040340A1 (en) | 2004-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100513812C (en) | Rolling bearing seal device | |
| KR101681270B1 (en) | Sealing structure of wheel bearing for vehicle | |
| EP3477137B1 (en) | Box type sealing struture and conical roller bearing | |
| US20130029772A1 (en) | Inner seal for cv joint boot | |
| US20110262063A1 (en) | Sealing Device for a Hub and A Bearing Assembly including the Sealing Device | |
| JP5790314B2 (en) | Combination seal ring with encoder and rolling bearing unit with encoder | |
| EP1598216A1 (en) | Sealing device for a wheel hub unit | |
| EP2674635B1 (en) | Rolling bearing device for wheel | |
| KR20140005546A (en) | Sealing apparatus and wheel bearing assembly thereof | |
| US4512673A (en) | Bearing cup with external restraining flange | |
| AU2018320579A1 (en) | Covering system for wheelset shafts of rail vehicles | |
| US9464666B2 (en) | Bushing and transmission arrangement with the bushing | |
| EP1759882A2 (en) | Wheel hub rolling element bearing assembly with sealing arrangement | |
| US6168529B1 (en) | Cross-piece for universal joint and universal joint | |
| US4317341A (en) | Universal joint | |
| US5105685A (en) | Oil-sealing structure of motor | |
| KR20170131974A (en) | Slinger structure and wheel bearing assembly provided the same | |
| CN104314990B (en) | Cartridge seal for radial bearing and method of installation | |
| KR101802278B1 (en) | Wheel bearing and sealing apparatus thereof | |
| KR20210095119A (en) | Steering system with pivot bearings | |
| EP1347190B1 (en) | Constant velocity joint | |
| CN107061509A (en) | Bearing unit | |
| GB2058243A (en) | Deep groove ball bearing | |
| JP6776833B2 (en) | Rolling bearing equipment | |
| WO1999045286A1 (en) | Antifriction bearing with disk-like cage for a flywheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |