GB2378735A - Rolling element bearings and seals thereof - Google Patents

Rolling element bearings and seals thereof Download PDF

Info

Publication number
GB2378735A
GB2378735A GB0119931A GB0119931A GB2378735A GB 2378735 A GB2378735 A GB 2378735A GB 0119931 A GB0119931 A GB 0119931A GB 0119931 A GB0119931 A GB 0119931A GB 2378735 A GB2378735 A GB 2378735A
Authority
GB
United Kingdom
Prior art keywords
seal
bearing
rings
end portion
mounting piece
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.)
Granted
Application number
GB0119931A
Other versions
GB2378735B (en
GB0119931D0 (en
Inventor
Anthony Thomas Synnott
Philip Neville Bryan
Christophe Dejous
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK European Technology Co Ltd
Original Assignee
NSK European Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NSK European Technology Co Ltd filed Critical NSK European Technology Co Ltd
Priority to GB0119931A priority Critical patent/GB2378735B/en
Publication of GB0119931D0 publication Critical patent/GB0119931D0/en
Publication of GB2378735A publication Critical patent/GB2378735A/en
Application granted granted Critical
Publication of GB2378735B publication Critical patent/GB2378735B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • 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
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Sealing Of Bearings (AREA)

Abstract

A rolling element bearing 2 with inner and outer rings 10, 11 which rotate relative to one another has a set of balls 12 spaced-apart with a cage 13 and running in tracks 14 in the inner surfaces of the rings. Seals 15 prevent the ingress of contaminants in the bearing interior and retain lubricant. Each seal 15 is of L-shaped cross-section and composed of a molded elastomeric body 16 combined with a stiffening member 17. The seal 15 has a block-like mounting piece 6 extending axially of one of the bearing rings 11 and to which it is internally secured. To achieve this, the ring 11 has a sinusoidally shaped surface region 23, 24 with a projection 27 which fits into a groove 22 on the outer peripheral surface of the mounting piece 6.

Description

<Desc/Clms Page number 1>
Seats for Rolline Element Bea The present invention relates to rolling element bearings, particularly, but not solely, angular contact ball bearings and to seals for such bearings.
The mounting of seals to one of the rings of a rolling element bearing is problematic and a general object of the invention is to provide an improved mounting means for mounting the seals.
According to the invention there is provided a rolling element bearing composed of relatively rotatable inner and outer rings with rolling elements engaging in tracks provided on inner confronting surfaces of the rings and annual seals carried by one of the rings and extending between the rings to act as barriers to prevent the ingress of contaminants into the interior of the bearing and to retain lubricant within the bearing interior; wherein each seal is of flexible composite construction and has a mounting piece with at least one aperture which positively locates with a complementary shaped axial inner surface region of said one ring.
Preferably the inner axial surface region of the bearing ring which locates with one of the seals is generally sinusoidal with a pronounced projection or bulge for fitting in the aperture in the associated groove.
Each seal is preferably made from a main body of molded elastomer containing a stiffening member. Both the main body and the stiffening member may have an L-shaped cross-section.
The resultant seal then has a thinner radial portion and a block-like more bulky axial end portion
<Desc/Clms Page number 2>
which provides the seal mounting piece. The characteristic aperture or cut-out or relief in the axial end portion may have a simple regular concave profile. The mounting of the seal to the bearing is quite straightforward and the seal can easily be press-fitted into the bearing to locate with the complementary inner surface region on the associated bearing ring.
The invention also provides a seal which is of flexible composite construction with a radial
portion and an axial end portion, the axial end portion acting as a mounting piece for location F. 0-. -ion acting as a mounting. with mounting means on a bearing ring, wherein the mounting piece of the seal has an aperture or cut-out and the mounting means is a projection for engaging in the aperture.
The invention may be understood more readily and various other aspects and features of the invention may become apparent from consideration of the following description.
Embodiments of the invention will now be described, by way of examples only, with reference to the accompanying drawings, wherein: Figure 1 is a cross-section through part of a rolling-element bearing constructed in accordance with the invention; Figure 2 is a cross-section through part of one of the seals of the bearing, the view being taken on a somewhat larger scale than that of Figure 1 and
<Desc/Clms Page number 3>
Figures 3 and 4 are diagrammatic representations of an inner surface region of the outer bearing ring as indicated by the circle marked'A'in Figure I showing different shapes for mating with the seal.
As shown in Figure 1, a rolling element bearing 2, here in the form of an angular contact ball bearing, is composed of relatively rotatable inner and outer rings 10,11 with a set of balls 12 therebetween. The balls 12 are spaced apart with a cage 13 and engage in tracks 14 in the inner confronting surfaces of the rings 10,11. The track 14 in the inner ring 10 is a regular concave groove in uniform contact with the balls 12 while the track 14 in the outer ring 11 is defined by a curved profiled surface 8 in angular contact with the balls 12. The surface 8 is provided on a radially inwardly extending rib 7 on the inside of the ring 11. The bearing 10 is equipped with a pair of annular seals 15 which extend between the rings. The seals 15 are carried by the outer ring 11 as described in more detail below. The seals 15 are of L-shaped composite form as shown in Figure 2. Each seal 15 is composed of an elastomeric molded body 16 containing a stiffening member 17 made from metal. The stiffening member 17 is generally L-shaped with a main radial portion 18 defining the inner radial surface of the seal and an axial portion 19. The body 16 likewise has a radial portion 20 and an axial portion 21 of substantial block-like form forming a mounting piece 6.
The axial portion 21 has a groove 22 around its periphery. The outer bearing ring 11 has shaped inner surface regions 23,24. The surface region 23 extends from one outer side 25 of the ring 11 up to the rib 7 whilst the surface region 24 extends from the other outer side 26 of the ring 11 and merges into the curved surface 8 via an inclined intermediate surface region 30. Each surface
<Desc/Clms Page number 4>
region 23,24 is generally sinusoidal with a pronounced projection 27 between relieved depressions 28 which mate with the groove 22 and the adjacent flanks of the portion 21 or mounting section 6 of the associated seal 15. The projections 27 and depressions 28 thus serve as a location or mounting means and cooperate with the mounting pieces 6 of the seals 15 to hold the seals 15 on the ring 11.
The main radial portion 18 of each seal 15 adjoins a terminal portion 29 opposite the mounting section 6. The terminal portion 29 is defined by an angularly inclined end pan 30 of the member 17 and a U-shaped end part 31 of the body 16 which provides a sealing lip 32.
Figure 3 depicts slightly different shapes for the surface region 23 where like reference numerals are used for the same features.
The seals 15 can easily be fitted by pressing the seals 15 inwardly of the bearing side faces 25,26 so that the flexible or compliant mounting pieces 6 slide over the associated surface region 23,24 and the projections 27 locate in the grooves 22. The formation of the shaped surface regions 23, 24 does not weaken the bearing ring 11.
The seals 15 act as two-way barriers reliably to prevent the ingress of contaminants into the interior 28 of the bearing 2 and to ensure that grease packed into the interior 28 to act as a lubricant is retained. Accordingly the bearing 2 can be manufactured as a pre-greased type. This barrier function is not adversely affected by the orientation of the bearing 2 during operation.

Claims (20)

Claims
1. A rolling element bearing composed of relatively rotatable inner and outer rings with rolling elements engaging in tracks provided on inner confronting surfaces of the rings and annual seals carried by one of the rings and extending between the rings to act as barriers to prevent the ingress of contaminants into the interior of the bearing and to retain lubricant within the bearing interior; wherein each seal is of flexible composite construction and has a mounting piece with at least one aperture which positively locates with a complementary shaped axial inner surface region of said one ring.
2. A rolling element bearing composed of relatively rotatable inner and outer rings with rolling elements engaging in tracks provided on inner confronting surfaces of the rings and annual seals carried by one of the rings and extending between the rings to act as barriers to prevent the ingress of contaminants into the interior of the bearing and to retain lubricant within the bearing interior; wherein each seal is made at least partly of resilient material and has a mounting piece with a cut out or relief which receives a complementary projection on an inner axial surface region of said one ring acting at least in part as complementary mounting means for the mounting piece.
3. A bearing according to claim 1, wherein the inner axial surface region of said one ring has a generally sinusoidal profile with a projection for engaging with said at least one aperture.
<Desc/Clms Page number 6>
4. A bearing according to claim 1, 2 or 3, wherein each seal has a main body made from a molded flexible elastomer containing a stiffening member.
5. A bearing according to claim 4, wherein the stiffening member is metallic.
6. A bearing according to claim 4 or 5, wherein each seal is generally L-shaped in cross-
LA'h a section with a radially extending portion and an axial end portion which forms the mounting piece.
7. A bearing assembly according to claim 6, wherein both the main body and the stiffening member each have regions forming the radially extending portion and the axial end portion of each seal.
8. A bearing according to claim 7, wherein an inner radial surface of each seal adjacent the bearing interior is defined by the stiffening member.
9. A bearing assembly according to claim 8, wherein the aperture, cut-out or relief in the mounting piece of each seal is provided in a peripheral surface of the seal defined by the main body thereof.
10. A bearing according to claim 6,7, 8 or 9, wherein each seal has a U-shaped terminal portion opposite the axial end portion which has a flexible lip closely adjacent an inner axial surface region of the other bearing ring.
<Desc/Clms Page number 7>
11. A rolling element bearing according to any one of the preceding claims and in the form of an angular contact ball bearing.
12. A rolling element bearing substantially as herein described with reference to, and as illustrated in, Figures I and 2 or Figures 1, 2 and 3 of the accompanying drawings.
13. An annular seal for use in a bearing in accordance with any one of the preceding claims; said seal being of flexible composite construction with a radial portion and an axial end portion, the axial end portion acting as a mounting piece for location with mounting means on a bearing ring, wherein the mounting piece of the seal has an aperture or cut-out and the mounting means is a projection for engaging in the aperture.
14. A seal according to claim 13 and composed of a main body made from a molded flexible elastomer containing a stiffening member.
15. A seal according to claim 14, wherein the stiffening member is metallic.
16. A seal according to claim 14 or 15, wherein both the main body and the stiffening member each have regions forming the radially extending portion and the axial end portion of the seal.
<Desc/Clms Page number 8>
17. A seal according to claim 14, 15 or 16, wherein there is a U-shaped terminal end portion opposite the axial end portion which defines a terminal lip.
18. A seal according to any one of claims 13 to 17, wherein the aperture or cut-out is defined by a uniform radius of curvature centred on a radial plane.
19. A seal according to any one of claims 14 to 18, wherein the groove is defined by a
ru* f la u uniform radius of curvature centred on a radial plane.
20. A seal substantially as described with reference to, and as illustrated in, Figure 2 of the accompanying drawings.
19. A seal substantially as described with reference to, and as illustrated in, Figure 2 of the accompanying drawings.
<Desc/Clms Page number 9>
Amendments to the claims have been filed as follows 1. A rolling element bearing composed of relatively rotatable inner and outer rings with rolling elements engaging in tracks provided on inner confronting surfaces of the rings and annular seals carried by one of the rings and extending between the rings to act as barriers to prevent the ingress of contaminants into the bearing and the interior of the bearing and to retain lubricant within the bearing interior; wherein each seal is of flexible composite construction and has a mounting piece with at least one groove which positively locates with a complementary shaped axial inner surface region of said one ring.
2. A rolling element bearing composed of relatively rotatable inner and outer rings with rolling elements engaging in tracks provided on inner confronting surfaces of the rings and annual seals carried by one of the rings and extending between the rings to act as barriers to prevent the ingress of contaminants into the interior of the bearing and to retain lubricant within the bearing interior; wherein each seal is made at least partly of resilient material and has a mounting piece with a groove which receives a complementary projection on an inner axial surface region of said one ring acting at least in part as complementary mounting means for the
mounting piece. tn 3. A bearing according to claim 1, wherein the inner axial surface region of said one ring has a generally sinusoidal profile with a projection for engaging with said at least one groove.
<Desc/Clms Page number 10>
4. A bearing according to claim 1,2 or 3, wherein each seal has a main body made from a molded flexible elastomer containing a stiffening member.
5. A bearing according to claim 4, wherein the stiffening member is metallic.
6. A bearing according to claim 4 or 5, wherein each seal is generally L-shaped in cross- section with a radially extending portion and an axial end portion which forms the mounting piece.
7. A bearing according to claim 6, wherein both the main body and the stiffening member each have regions forming the radially extending portion and the axial end portion of each seal.
8. A bearing according to claim 7, wherein an inner radial surface of each seal adjacent the bearing interior is defined by the stiffening member.
9. A bearing according to claim 8, wherein the groove in the mounting piece of each seal is provided in a peripheral surface of the seal defined by the main body thereof
10. A bearing according to claim 6, 7, 8 or 9, wherein each seal has a U-shaped terminal t > portion opposite the axial end portion which has a flexible lip closely adjacent an inner axial surface region of the other bearing ring.
<Desc/Clms Page number 11>
11. A bearing according to any one or more of the preceding claims, wherein said groove has a uniform radius of curvature centred on a radial plane.
12. A bearing according to any one of the preceding claims and in the form of an angular contact ball bearing.
13. A rolling element bearing substantially as herein described with reference to, and as illustrated in, Figures 1 and 2 or Figures 1,2 and 3 of the accompanying drawings.
14. An annular seal for use in a bearing in accordance with any one of the preceding claims ; said seal being of flexible composite construction with a radial portion and an axial end portion, the axial end portion acting as a mounting piece for location with mounting means on a bearing ring, wherein the mounting piece of the seal has a groove and the mounting means is a projection on an axial inner surface region of the bearing ring for engaging in the groove.
15. A seal according to claim 14 and composed of a main body made from a molded flexible elastomer containing a stiffening member.
16. A seal according to claim 15, wherein the stiffening member is metallic.
17. A seal according to claim 15 or 16, wherein both the main body and the stiffening member each have regions forming the radially extending portion and the axial end portion of the seal.
<Desc/Clms Page number 12>
18. A seal according to claim 15,16 o, 17, wherein there is a U-shaped terminal end portion opposite the axial end portion which defines a terminal lip.
GB0119931A 2001-08-15 2001-08-15 Seals for rolling element bearings Expired - Lifetime GB2378735B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0119931A GB2378735B (en) 2001-08-15 2001-08-15 Seals for rolling element bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0119931A GB2378735B (en) 2001-08-15 2001-08-15 Seals for rolling element bearings

Publications (3)

Publication Number Publication Date
GB0119931D0 GB0119931D0 (en) 2001-10-10
GB2378735A true GB2378735A (en) 2003-02-19
GB2378735B GB2378735B (en) 2003-06-25

Family

ID=9920466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0119931A Expired - Lifetime GB2378735B (en) 2001-08-15 2001-08-15 Seals for rolling element bearings

Country Status (1)

Country Link
GB (1) GB2378735B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005041917A1 (en) * 2005-09-03 2007-03-08 Schaeffler Kg Tandem angular contact ball bearings
CN102242771A (en) * 2011-04-18 2011-11-16 无锡市第二轴承有限公司 High-speed sealed bearing
DE102012020957A1 (en) * 2012-10-25 2014-04-30 Volkswagen Aktiengesellschaft Bearing e.g. radial ball bearing, has annular cover force-fit and form-fit fixed in annular groove of outer bearing shell by pretensioning force such that effective direction of force points on annular, closed, linear contact surface

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822890A (en) * 1973-01-15 1974-07-09 Roulements Soc Nouvelle Bearing seals
GB2213210A (en) * 1987-12-23 1989-08-09 Riv Officine Di Villar Perosa Sealed rolling bearing and its production
US4874261A (en) * 1987-12-23 1989-10-17 Riv-Skf Officine Di Villar Perosa S.P.A. Seal for bearings
WO1989010505A1 (en) * 1988-04-20 1989-11-02 Woodville Polymer Engineering Limited Seal assemblies
EP0737821A1 (en) * 1995-04-10 1996-10-16 The Timken Company Bearing seal
GB2301152A (en) * 1995-05-11 1996-11-27 Nsk Ltd Rolling bearing seal
EP0766016A2 (en) * 1995-09-26 1997-04-02 RFT S.p.A. Perfected sealing and guard ring for rolling bearings
WO1999042737A1 (en) * 1998-02-23 1999-08-26 Skf Sverige Ab Bearing seals
EP1008775A2 (en) * 1998-12-11 2000-06-14 SKF INDUSTRIE S.p.A. A sealing device for bearings

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822890A (en) * 1973-01-15 1974-07-09 Roulements Soc Nouvelle Bearing seals
GB2213210A (en) * 1987-12-23 1989-08-09 Riv Officine Di Villar Perosa Sealed rolling bearing and its production
US4874261A (en) * 1987-12-23 1989-10-17 Riv-Skf Officine Di Villar Perosa S.P.A. Seal for bearings
WO1989010505A1 (en) * 1988-04-20 1989-11-02 Woodville Polymer Engineering Limited Seal assemblies
EP0737821A1 (en) * 1995-04-10 1996-10-16 The Timken Company Bearing seal
GB2301152A (en) * 1995-05-11 1996-11-27 Nsk Ltd Rolling bearing seal
EP0766016A2 (en) * 1995-09-26 1997-04-02 RFT S.p.A. Perfected sealing and guard ring for rolling bearings
WO1999042737A1 (en) * 1998-02-23 1999-08-26 Skf Sverige Ab Bearing seals
EP1008775A2 (en) * 1998-12-11 2000-06-14 SKF INDUSTRIE S.p.A. A sealing device for bearings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005041917A1 (en) * 2005-09-03 2007-03-08 Schaeffler Kg Tandem angular contact ball bearings
CN102242771A (en) * 2011-04-18 2011-11-16 无锡市第二轴承有限公司 High-speed sealed bearing
CN102242771B (en) * 2011-04-18 2013-01-02 无锡市第二轴承有限公司 High-speed sealed bearing
DE102012020957A1 (en) * 2012-10-25 2014-04-30 Volkswagen Aktiengesellschaft Bearing e.g. radial ball bearing, has annular cover force-fit and form-fit fixed in annular groove of outer bearing shell by pretensioning force such that effective direction of force points on annular, closed, linear contact surface

Also Published As

Publication number Publication date
GB2378735B (en) 2003-06-25
GB0119931D0 (en) 2001-10-10

Similar Documents

Publication Publication Date Title
US8342535B2 (en) Non-contact labyrinth seal assembly and method of construction thereof
US9291272B2 (en) Non-contact labyrinth seal assembly and method of construction thereof
JPH10252762A (en) Sealing device for rolling bearing
JP2509253B2 (en) Bearing seal
JPWO2003069177A1 (en) Sealing device and rolling bearing and hub unit incorporating the same
US4362344A (en) Sealed ball bearing with stamped races
US20120170884A1 (en) Triple-lip seals for bearings and bearings incorporating the same
WO2013108672A1 (en) Roller bearing
US6280097B1 (en) Corrosion resistant cam follower bearing assembly
GB2378735A (en) Rolling element bearings and seals thereof
US8807842B2 (en) Sealing assembly in a thrust bearing king pin application
JP2005330987A (en) Sealed rolling bearing and seal
JP6981143B2 (en) Ball bearing with seal
JP2004084813A (en) Rolling bearing
JP5202128B2 (en) Sealed rolling bearing
US11940020B2 (en) Rubber outboard deflector ring
CN110905915B (en) Self-aligning roller bearing
JP2004052793A (en) Rolling bearing
JP4696415B2 (en) Sealing device
JP2000103335A (en) Bearing device for railway vehicle
JPS5936735Y2 (en) Rolling bearing sealing device
CA1145803A (en) Contoured double lip bearing seal
JP2006161876A (en) Rolling bearing
WO2016068005A1 (en) Rolling bearing
JP2020143708A (en) Thrust bearing

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20210814