WO2010107855A1 - Modular seal for wide inner ring ball bearing housed unit - Google Patents

Modular seal for wide inner ring ball bearing housed unit Download PDF

Info

Publication number
WO2010107855A1
WO2010107855A1 PCT/US2010/027570 US2010027570W WO2010107855A1 WO 2010107855 A1 WO2010107855 A1 WO 2010107855A1 US 2010027570 W US2010027570 W US 2010027570W WO 2010107855 A1 WO2010107855 A1 WO 2010107855A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
inner ring
assembly
face
improved
Prior art date
Application number
PCT/US2010/027570
Other languages
French (fr)
Inventor
Biswanath Nandi
Faiz Ahmed Ghulam Khader
Craig R. Etheridge
William T. Burks
Original Assignee
The Timken Company
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 The Timken Company filed Critical The Timken Company
Publication of WO2010107855A1 publication Critical patent/WO2010107855A1/en

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
    • 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
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/084—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface sliding on a complementary spherical surface
    • 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
    • F16C33/72—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
    • F16C33/7859—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 further sealing element
    • 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
    • F16J15/3264—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 the elements being separable from each other
    • 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
    • F16J15/3268—Mounting of sealing rings
    • F16J15/3276—Mounting of sealing rings with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted
    • 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

Definitions

  • the present invention is related generally to seal assemblies adapted to protect bearing components from external contaminates and to retain internal lubricants, and in particular, to a seal assembly and seal installation method for use with wide inner ring ball bearing housed units.
  • Wide inner ring (WIR) ball bearings are commonly utilized in housed units such as pillow blocks and 2/4 bolt flanges, wherein the outer ring remains stationary while the inner ring rotates.
  • a wide inner ring ball bearing has very limited space in the outer ring compared to the diameter for mounting a seal.
  • WIR bearings incorporate the seal as part of the envelope of the entire assembly and are directly exposed to environmental conditions and contamination. These seals are secured to the stationary outer ring, with a seal lip rubbing over the inner ring as it rotates relative thereto.
  • the present disclosure provides a modular seal for use with wide inner ring ball bearing housed units, which employs a combination locking, i.e. press-in design, with an interference fit between the modular seal and a mounting bore of a bearing outer ring.
  • a radial bead present on the outer diameter of the modular seal facilitates axial containment of the modular seal within a seal retention groove.
  • a heavy interference fit present between the seal case outer diameter and the bearing mounting bore provides for radial containment of the modular seal against rotational torque.
  • a rubberized seal case is provided to seal the gap between the seal case outer diameter and the bearing outer ring mounting bore, and a close-gap rubber shield is employed in combination with a radial lip to provide sealing against the bearing inner ring outer surface.
  • a method for assembling a modular seal of the present disclosure utilizes a press-fit process to seat the modular seal within the mounting bore groove in the outer ring inner diameter surface.
  • Figure 1 is a sectional view of a wide inner ring ball bearing housed unit employing a seal assembly of the present disclosure
  • Figure 2 is a sectional view illustrating a single-lip "R" seal configuration of the present disclosure
  • Figure 3 is a sectional view illustrating a first triple-lip combo seal configuration of the present disclosure
  • Figure 4 is a sectional view illustrating a second triple-lip "R" seal configuration of the present disclosure
  • Figure 5 is a sectional view illustrating a porous (such as felt) seal configuration of the present disclosure
  • Figure 6 is a sectional view illustrating a labyrinth seal configuration of the present disclosure.
  • Figure 7 is a close sectional view illustrating a seal assembly of the present disclosure prior to insertion into the wide inner ring ball bearing housed unit.
  • a wide inner ring ball bearing housed unit assembly 10 incorporating a seal assembly 100 of the present disclosure is shown in sectional view mounted to a rotating shaft R.
  • bearing housed unit assembly 10 is achieved by a combination of radial interference fit and axial containment developed through a radial bead 102 located at an inboard end of an axially directed seal face segment 104 of the seal assembly 100 as best seen in Figure 2 and Figure 7.
  • the seal assembly 100 locking configuration consists of a formed seal face 105 having both radial and axial portions, and partially covered by a rubberized seal case 106 with an outer diameter which is greater than the inner diameter of the mounting bore 12 of the outer ring 14 in the assembly 10.
  • the radial bead 102 is configured to have an outer diameter which is greater than that of the mounting bore 12 inner diameter.
  • the radial bead 102 of the seal assembly 100 deflects radially inward until reaching a seal retention groove 18 disposed in the inner diameter surface of the outer ring 14, at which point the radial bead 102 springs into engagement with the seal retention groove 18.
  • the radial portion of the seal assembly 100 seal face 105 may be covered with an elastomer envelope 106 or molding on both an inner surface and an outer surface to maintain a close gap G between a seal surface 20 of a rotating inner ring 22 and the inner diameter bore of the seal assembly 100.
  • the elastomer envelope 106 consisting of a nitril, acrylic, Vitan or other suitable sealing material, may be configured as a labyrinth seal, and may incorporate one or more seal lips LI -Ln adjacent the seal surface 20 or an external shield 200, such as shown in Figure 3.
  • a cap 200 consisting of an annular member 202 formed from a low torque porous material, such as felt, may be affixed to the axially inner surface of the seal assembly 100, adjacent to, and/or abutting the seal surface 20 of the inner ring 22.
  • a cap 200 consisting of an annular member 202 formed from a low torque porous material, such as felt, may be affixed to the axially inner surface of the seal assembly 100, adjacent to, and/or abutting the seal surface 20 of the inner ring 22.
  • a method for assembling the seal assembly 100 of the present disclosure between an inner ring 22 and an outer ring 14 of a bearing assembly 10 requires initially providing an annular seal retention groove 18 in the seal mounting bore 12 (inner diameter surface) of the outer ring 14.
  • the seal assembly 100 is then axially pressed into the seal mounting bore 12, such that the radial bead 102 defining the inboard edge of the outer diameter of the seal assembly 100 is deflected radially inward.
  • the axial press is continued until the radial bead 102 reaches the annular seal retention groove 18 in the seal mounting bore 12, at which point the radial bead elastically returns to the initial non-deflected position, engaging the seal retention groove 18, while the axially directed annular segment 104 of the seal face, that is the rubberized seal case 106 outer diameter engages the seal mounting bore 12 with an interference fit.
  • the seal assembly 100 extends from the axially directed segment 104 in a radially inward direction towards the seal surface 20 on the outer diameter of the inner ring 22, establishing a seal against external contaminates.
  • a supplemental shield 200 may be secured to inner ring 22 to provide additional protection for the seal assembly 100 against damage from external impacts.
  • the shield 200 may be formed from a durable material, such as low carbon sheet or stainless steel, configured in any suitable shape to extend axially inward along the seal surface 20 of the inner ring 22, and may include a supplemental sealing element, such as the low torque porous ring 202 to further facilitate the sealing function of the seal assembly 100.
  • seal concepts of the present invention are not limited to use with ball bearing units, but rather, may be utilized with any type of bearing unit having an outer ring with a seal mounting bore and a seal retention groove, and an inner ring having a seal surface against which the seal assembly 100 can form a suitable seal.

Landscapes

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

Abstract

A modular seal assembly 100 for use with bearings such as a wide inner ring ball bearing housed unit (10), which employs a combination locking, comprising of axial containment of radial bead (102) with press-in design in retention groove (18) and an interference fit between the axially directed annual segment (104) of the seal assembly (100) and a mounting bore (12)) of an outer ring (14) of the bearing unit (10). The radial bead (102) is configured to facilitate axial containment of the seal assembly by engagement within the seal retention groove (18) in the seal mounting bore (12). The seal assembly includes one or more elements on the seal face (105) to provide a close gap (G) between the seal assembly (100) and a seal surface (20) of an inner ring (22) of the bearing unit (10), while optional supplemental shield elements (200) protect against external debris.

Description

MODULAR SEAL FOR WIDE INNER RING BALL BEARING HOUSED UNIT
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application is related to, and claims priority from, U.S. Provisional Patent Application Serial No. 61/161 ,140 filed on March 18, 2009, which is herein incorporated by reference. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
Not Applicable.
BACKGROUND OF THE INVENTION The present invention is related generally to seal assemblies adapted to protect bearing components from external contaminates and to retain internal lubricants, and in particular, to a seal assembly and seal installation method for use with wide inner ring ball bearing housed units.
Wide inner ring (WIR) ball bearings are commonly utilized in housed units such as pillow blocks and 2/4 bolt flanges, wherein the outer ring remains stationary while the inner ring rotates. Typically, a wide inner ring ball bearing has very limited space in the outer ring compared to the diameter for mounting a seal.
Unlike deep groove ball bearings, WIR bearings incorporate the seal as part of the envelope of the entire assembly and are directly exposed to environmental conditions and contamination. These seals are secured to the stationary outer ring, with a seal lip rubbing over the inner ring as it rotates relative thereto.
Conventional seals are mounted to the outer ring in a pop-in or interference fit, with curling or crimping to retain the seal in an circumferential groove in the outer ring inner diameter. However, in harsh conditions such as experienced in agricultural and construction machinery where the seals are subjected to direct environmental exposure and hard particle impacts, these seal mounts have been found to fail, allowing the seal to rotate relative to the outer ring element.
Accordingly, it would be advantageous to provide a seal assembly for ball housed units such as wide inner ring ball bearings which improves the retention of the seal element within the outer ring element, increases the effective sealing of the seal element when exposed to harsh environmental conditions and direct impacts from hard particles, and which may be reliably and easily manufactured and assembled. BRIEF SUMMARY OF THE INVENTION
Briefly stated, the present disclosure provides a modular seal for use with wide inner ring ball bearing housed units, which employs a combination locking, i.e. press-in design, with an interference fit between the modular seal and a mounting bore of a bearing outer ring. A radial bead present on the outer diameter of the modular seal facilitates axial containment of the modular seal within a seal retention groove. A heavy interference fit present between the seal case outer diameter and the bearing mounting bore provides for radial containment of the modular seal against rotational torque. A rubberized seal case is provided to seal the gap between the seal case outer diameter and the bearing outer ring mounting bore, and a close-gap rubber shield is employed in combination with a radial lip to provide sealing against the bearing inner ring outer surface.
A method for assembling a modular seal of the present disclosure utilizes a press-fit process to seat the modular seal within the mounting bore groove in the outer ring inner diameter surface.
The foregoing features, and advantages set forth in the present disclosure as well as presently preferred embodiments will become more apparent from the reading of the following description in connection with the accompanying drawings. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
In the accompanying drawings which form part of the specification:
Figure 1 is a sectional view of a wide inner ring ball bearing housed unit employing a seal assembly of the present disclosure;
Figure 2 is a sectional view illustrating a single-lip "R" seal configuration of the present disclosure; Figure 3 is a sectional view illustrating a first triple-lip combo seal configuration of the present disclosure;
Figure 4 is a sectional view illustrating a second triple-lip "R" seal configuration of the present disclosure; Figure 5 is a sectional view illustrating a porous (such as felt) seal configuration of the present disclosure;
Figure 6 is a sectional view illustrating a labyrinth seal configuration of the present disclosure; and
Figure 7 is a close sectional view illustrating a seal assembly of the present disclosure prior to insertion into the wide inner ring ball bearing housed unit.
Corresponding reference numerals indicate corresponding parts throughout the several figures of the drawings. It is to be understood that the drawings are for illustrating the concepts set forth in the present disclosure and are not to scale.
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. DETAILED DESCRIPTION
The following detailed description illustrates the invention by way of example and not by way of limitation. The description enables one skilled in the art to make and use the present disclosure, and describes several embodiments, adaptations, variations, alternatives, and uses of the present disclosure, including what is presently believed to be the best mode of carrying out the present disclosure.
Turning to the figures, and to Figure 1 in particular, a wide inner ring ball bearing housed unit assembly 10 incorporating a seal assembly 100 of the present disclosure is shown in sectional view mounted to a rotating shaft R. The radial and axial retention of the seal assembly 100 in the wide inner ring ball -A-
bearing housed unit assembly 10 is achieved by a combination of radial interference fit and axial containment developed through a radial bead 102 located at an inboard end of an axially directed seal face segment 104 of the seal assembly 100 as best seen in Figure 2 and Figure 7. The seal assembly 100 locking configuration consists of a formed seal face 105 having both radial and axial portions, and partially covered by a rubberized seal case 106 with an outer diameter which is greater than the inner diameter of the mounting bore 12 of the outer ring 14 in the assembly 10. When the seal assembly 100 is press-fitted into the mounting bore 12, a heavy duty, tight fit is achieved between the outer diameter of the seal case 106, defined by the axial extension portion 104 and the inner diameter of the mounting bore 12, thereby proving radial containment of the seal assembly 100 within the mounting bore 12 of the outer ring 14.
To resist displacement by hard particle impacts on the external surfaces of the seal assembly 100 and occasional over lubrication of the housed unit assembly 10 by the user at the field, the radial bead 102 is configured to have an outer diameter which is greater than that of the mounting bore 12 inner diameter. When pressed into the mounting bore 12, the radial bead 102 of the seal assembly 100 deflects radially inward until reaching a seal retention groove 18 disposed in the inner diameter surface of the outer ring 14, at which point the radial bead 102 springs into engagement with the seal retention groove 18.
As best seen in Figures 3-6, the radial portion of the seal assembly 100 seal face 105 may be covered with an elastomer envelope 106 or molding on both an inner surface and an outer surface to maintain a close gap G between a seal surface 20 of a rotating inner ring 22 and the inner diameter bore of the seal assembly 100. The elastomer envelope 106, consisting of a nitril, acrylic, Vitan or other suitable sealing material, may be configured as a labyrinth seal, and may incorporate one or more seal lips LI -Ln adjacent the seal surface 20 or an external shield 200, such as shown in Figure 3. Optionally, in place of, or in combination with the seal lips LI -Ln, a cap 200 consisting of an annular member 202 formed from a low torque porous material, such as felt, may be affixed to the axially inner surface of the seal assembly 100, adjacent to, and/or abutting the seal surface 20 of the inner ring 22. Those of ordinary skill in the art will recognize that the particular configuration of the seal face of the seal assembly 100, including any seal lips LI -Ln or caps 200 disposed thereon may be varied as needed based on the particular application for which the seal assembly 100 is intended without altering the seal retention mechanisms or installation methods of the present disclosure.
A method for assembling the seal assembly 100 of the present disclosure between an inner ring 22 and an outer ring 14 of a bearing assembly 10 requires initially providing an annular seal retention groove 18 in the seal mounting bore 12 (inner diameter surface) of the outer ring 14. The seal assembly 100 is then axially pressed into the seal mounting bore 12, such that the radial bead 102 defining the inboard edge of the outer diameter of the seal assembly 100 is deflected radially inward. The axial press is continued until the radial bead 102 reaches the annular seal retention groove 18 in the seal mounting bore 12, at which point the radial bead elastically returns to the initial non-deflected position, engaging the seal retention groove 18, while the axially directed annular segment 104 of the seal face, that is the rubberized seal case 106 outer diameter engages the seal mounting bore 12 with an interference fit. The seal assembly 100 extends from the axially directed segment 104 in a radially inward direction towards the seal surface 20 on the outer diameter of the inner ring 22, establishing a seal against external contaminates.
As various changes could be made in the above constructions without departing from the scope of the disclosure, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. For example, as shown in Figures 3, 5, and 6, it will be recognized by those of ordinary skill in the art of seal design that a supplemental shield 200 may be secured to inner ring 22 to provide additional protection for the seal assembly 100 against damage from external impacts. The shield 200 may be formed from a durable material, such as low carbon sheet or stainless steel, configured in any suitable shape to extend axially inward along the seal surface 20 of the inner ring 22, and may include a supplemental sealing element, such as the low torque porous ring 202 to further facilitate the sealing function of the seal assembly 100.
It will further be recognized that the seal concepts of the present invention are not limited to use with ball bearing units, but rather, may be utilized with any type of bearing unit having an outer ring with a seal mounting bore and a seal retention groove, and an inner ring having a seal surface against which the seal assembly 100 can form a suitable seal.

Claims

CLAIMS:
1 . A method for assembling a seal assembly (100) having a radial bead (102) in an interference fit between an inner ring (22) and an outer ring (14) of a bearing assembly (10), comprising: providing an annular seal retention groove (18) in a seal mounting bore
(12) of the outer ring (14); axially pressing the seal assembly (100) into the seal mounting bore (12), such that the radial bead (102), defining an inboard edge of the seal assembly outer diameter, deflects radially inward; maintaining said axial pressing until the radial bead (102) engages the annular seal retention groove (18) in the seal mounting bore (12), and an axially directed annular segment (104) of the seal assembly (100) engaging the seal mounting bore (12) with an interference fit; and wherein a seal face (105) extends from the annular segment (104) in a radially inward direction towards the seal surface (20) of the inner ring (22), establishing a seal against external contaminates.
2. The method of Claim 1 wherein said bearing assembly (100) is a wide inner ring ball bearing housed unit (10).
3. The method of Claim 1 further including the step of disposing an elastomer molding (106) on said seal face (105) prior to the step of axially pressing the seal assembly (100) into the seal mounting bore (12).
4. An improved seal assembly (100) for a bearing assembly (10) having an inner ring (22) rotating relative to an outer ring (14), comprising: a seal face (105) having an axially inward-extending annular segment (104) terminating in a radial bead (102), said radial bead having an outer diameter greater than an inner diameter of a seal mounting bore (12) in the outer ring (14); wherein said annular segment (104) is configured for interference fitment within said seal mounting bore (12) of the outer ring (14); and wherein said seal assembly further includes a portion of said seal face (105) directed radially inward from said annular segment (104), said seal face configured to seal the annular space between said outer ring (14) and said inner ring (22) of the bearing assembly (10).
5. The improved seal of Claim 4 wherein said seal face (105) is molded with an elastomer (106) on at least one surface.
6. The improved seal of Claim 4 wherein said seal face (105) supports at least one seal lip (L1 ) in proximity to a seal surface (20) on said inner ring (22), said seal lip configured to maintain a close gap (G) between the inner ring (22) and a bore of the seal assembly (100).
7. The improved seal of Claim 4 wherein said seal face (105) supports a plurality of seal lips (LI -Ln) in proximity to a seal surface (20) on said inner ring (22), said seal lips configured to maintain a close gap (G) between the inner ring (22) and a bore of the seal assembly (100).
8. The improved seal of Claim 4 further including a supplemental shield (200) carried by said inner ring (22), said supplemental shield disposed axially outward from said shield assembly (100).
9. The improved seal of Claim 8 further include an annular member (202) of a low-torque porous material disposed between an outboard surface of said seal face (105) and said supplemental shield (200).
10. The improved seal of Claim 8 wherein said seal face (105) supports at least one seal lip (L1 ) in proximity to said supplemental shield (200), said seal lip configured to maintain a close gap between the seal assembly (100) and said supplemental shield (200).
1 1 . The improved seal of Claim 8 wherein said seal face (105) supports a molded elastomer (106) on at least one surface, said elastomer defining a plurality of seal lips (LI -Ln), at least one of said seal lips in proximity to a seal surface (20) on said inner ring (22), and at least one of said seal lips in proximity to said supplemental shield (200), said seal lips configured to maintain a close gap (G) between the inner ring (22) and a bore of the seal assembly (100), and between said bore of the seal assembly and said supplemental shield.
12. The improved seal of Claim 4 wherein said seal face (105) supports a annular member (202) of a low-torque porous material in proximity to a seal surface (20) of said inner ring (22).
13. The improved seal of Claim 12 wherein said annular member (202) is composed of felt.
14. The improved seal of Claim 4 wherein said bearing assembly (10) is a wide inner ring ball bearing housed unit.
15. The improved seal of Claim 4 wherein said seal face (105) supports a molded elastomer (106) on at least one surface, said molded elastomer defining at least one seal lip (L1 ) in proximity to said seal surface (20) on said inner ring (22), said seal lip configured to maintain a close gap (G) between the inner ring (22) and a bore of the seal assembly (100).
16. The improved seal of Claim 4 wherein said seal face (105) supports a molded elastomer (106) on at least one surface, said elastomer defining a plurality of seal lips (LI -Ln) in proximity to a seal surface (20) on said inner ring (22), said seal lips configured to maintain a close gap (G) between the inner ring (22) and a bore of the seal assembly (100).
PCT/US2010/027570 2009-03-18 2010-03-17 Modular seal for wide inner ring ball bearing housed unit WO2010107855A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16114009P 2009-03-18 2009-03-18
US61/161,140 2009-03-18

Publications (1)

Publication Number Publication Date
WO2010107855A1 true WO2010107855A1 (en) 2010-09-23

Family

ID=42357697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/027570 WO2010107855A1 (en) 2009-03-18 2010-03-17 Modular seal for wide inner ring ball bearing housed unit

Country Status (1)

Country Link
WO (1) WO2010107855A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755113A (en) * 1952-09-15 1956-07-17 Link Belt Co Bearing seal
US3425758A (en) * 1966-06-28 1969-02-04 Federal Mogul Corp Seal for bearing assembly
US3989259A (en) * 1974-09-16 1976-11-02 Federal-Mogul Corporation Lip seal with improved bore retention and installation including the seal
GB2016095A (en) * 1978-03-07 1979-09-19 Riv Officine Di Villar Perosa Bearing
US4249782A (en) * 1979-09-11 1981-02-10 Deere & Company Self-aligning bearing and seal
US4392695A (en) * 1981-08-10 1983-07-12 Miller Manufacturing Company Bearing
US5242229A (en) * 1992-11-25 1993-09-07 The Torrington Company Sealing structure for standardized bearing ring

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755113A (en) * 1952-09-15 1956-07-17 Link Belt Co Bearing seal
US3425758A (en) * 1966-06-28 1969-02-04 Federal Mogul Corp Seal for bearing assembly
US3989259A (en) * 1974-09-16 1976-11-02 Federal-Mogul Corporation Lip seal with improved bore retention and installation including the seal
GB2016095A (en) * 1978-03-07 1979-09-19 Riv Officine Di Villar Perosa Bearing
US4249782A (en) * 1979-09-11 1981-02-10 Deere & Company Self-aligning bearing and seal
US4392695A (en) * 1981-08-10 1983-07-12 Miller Manufacturing Company Bearing
US5242229A (en) * 1992-11-25 1993-09-07 The Torrington Company Sealing structure for standardized bearing ring

Similar Documents

Publication Publication Date Title
US8517389B2 (en) Fixing arrangement for a rubber seal for sealing a rolling bearing
WO2010113842A1 (en) Annular sealing device
US8534674B2 (en) Unitized radial fluid seal
JP4274341B2 (en) Axle bearing
US20090108539A1 (en) Annular Sealing Assembly, in Particular for Wheel Hubs
EP2545307B1 (en) Low torque shaft seal with improved seal element bond joint
JP2008151174A (en) Sealing device
CN113728184A (en) Seal housing with overmolded rubber gasket securing plastic wafer
US7374345B2 (en) System for securing a roller bearing in axial directions
EP2315959A1 (en) Extension member for a flinger of a bearing
JP2018054095A (en) Seal
US7926817B2 (en) Sealing apparatus and bearing apparatus having the same
US9915347B2 (en) Cassette seal
WO2012077403A1 (en) Sealing device
CN110073131B (en) Sealing device
JP4115419B2 (en) Sealing device
JP4822173B2 (en) Hub unit for vehicles
JP2007270873A (en) Sealing device
CN109983262B (en) Sealing arrangement for a rotatable shaft of a combustion engine
JP5311044B2 (en) Sealing device
CN201490811U (en) Automatic automobile gearbox and motor thereof
WO2010107855A1 (en) Modular seal for wide inner ring ball bearing housed unit
JP2014013063A (en) Rolling bearing unit for supporting wheel with seal ring
KR20210111743A (en) A Seal And A Slinger For Rolling Bearing
JP2021191966A (en) Wheel support rolling bearing unit

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10710725

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10710725

Country of ref document: EP

Kind code of ref document: A1