CN210290504U - Rolling bearing unit for wheel support - Google Patents
Rolling bearing unit for wheel support Download PDFInfo
- Publication number
- CN210290504U CN210290504U CN201921149734.0U CN201921149734U CN210290504U CN 210290504 U CN210290504 U CN 210290504U CN 201921149734 U CN201921149734 U CN 201921149734U CN 210290504 U CN210290504 U CN 210290504U
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- ring
- outer ring
- axial
- fitting
- end portion
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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
- F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
- F16C33/7873—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 single sealing ring of generally L-shaped cross-section
- F16C33/7876—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 single sealing ring of generally L-shaped cross-section with sealing lips
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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
- 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
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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
- 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
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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
- 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
-
- 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
- F16C19/18—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 two or more rows of balls
- F16C19/181—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 two or more rows of balls with angular contact
- F16C19/183—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 two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—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 two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—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 two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
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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
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a wheel bearing uses antifriction bearing unit, its have in the state that the support is fixed in the axial outer tip of outer lane, will exist in the axial outer tip opening confined sealing ring of the inner space between the outer peripheral face of the inner peripheral surface of outer lane and wheel hub. The seal ring has a core material and a sealing material made of an elastic material supported by the core material. The core material has a fitting cylinder portion fitted and fixed to an axial outer end portion of the outer ring, and an outward edge portion bent radially outward from the axial outer end portion of the fitting cylinder portion. The seal member has a contact lip, an outer diameter side covering portion covering the periphery of the outer edge portion, and an annular protrusion provided at a position smaller than the fitting diameter (φ A) of the outer end portion in the axial direction of the outer ring and protruding toward the rotation side flange. The rolling bearing unit for wheel support is provided with a pressing tool which can be concentrically abutted against a sealing material with a uniform pressing force, and can press the sealing ring into a normal position of an outer ring without deformation of a core material.
Description
Technical Field
The present invention relates to a wheel supporting rolling bearing unit for rotatably supporting a wheel of an automobile with respect to a suspension device.
Background
A wheel supporting rolling bearing unit for rotatably supporting a wheel of an automobile with respect to a suspension device uses a seal ring for sealing an internal space in which rolling elements are arranged from the outside. The seal ring (see patent document 1) is composed of a core material and a sealing material. The core member has a fitting cylinder portion fitted and fixed to an outer ring fitting surface (inner diameter surface), an outward edge portion bent at a right angle from the fitting cylinder portion toward a radial outer side, and an inner diameter side support portion bent from the fitting cylinder portion toward a radial inner side. The sealing material is made of an elastic material and has three sealing lips and an outer diameter side covering portion provided to cover the periphery of the outer edge portion.
When the seal ring having such a structure is press-fitted into the fitting surface of the outer ring, a method of pushing the outward edge portion by a press-fitting tool is employed. At this time, if the press-fitting tool and the outward edge portion of the core material are eccentric, the transmission of the press-fitting force to the fitting portion becomes uneven over the entire circumference, and the outer ring cannot be press-fitted to the proper position, or the core material is deformed.
In the seal ring described in patent document 1, the rubber of the press-fitting surface against which the press-fitting tool abuts is thickened, and even if the press-fitting tool is eccentric, the press-fitting tool and the press-fitting surface are uniformly brought into contact at least on the inner diameter side of the press-fitting surface.
However, in this seal ring, since the rubber coating on the press-fitting surface becomes thick, it may be difficult to press-fit the seal ring into a proper position.
Patent documents:
patent document 1: japanese patent laid-open publication No. 2018-71714
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a rolling bearing unit for wheel support that can press a seal ring into a normal position of an outer ring without deformation of a core material by making a press-fitting tool abut a seal member with a uniform press-fitting force and concentrically.
In order to solve the above problem, the present invention provides a rolling bearing unit for wheel support, including: an outer ring having an outer ring raceway on an inner circumferential surface thereof; a hub having an inner ring raceway on an outer circumferential surface thereof, and a rotating-side flange that extends outward in an outer diameter direction at a portion located axially outward of the outer ring and supports and fixes a wheel; a plurality of rolling elements provided between the outer ring raceway and the inner ring raceway so as to be rollable; and a seal ring which is supported and fixed to an axial outer end portion of the outer ring and which closes an axial outer end opening of an inner space existing between an inner peripheral surface of the outer ring and an outer peripheral surface of the hub, the seal ring including a core material and a sealing material made of an elastic material and supported by the core material, the core material including a fitting cylinder portion which is made of a metal material, is annular as a whole, and is fitted and fixed to the axial outer end portion of the outer ring, and an outward edge portion which is bent radially outward from the axial outer end portion of the fitting cylinder portion, the sealing material including a contact lip made of an elastic material, an outer diameter side covering portion which covers a periphery of the outward edge portion, and an annular protrusion which is provided at a position smaller than a fitting diameter of the axial outer end portion of the outer ring.
The rolling bearing unit for wheel support is characterized in that the annular projection is provided over the entire circumference.
Further, the rolling bearing unit for wheel support is characterized in that the annular projection is formed intermittently in the circumferential direction.
The rolling bearing unit for wheel support is characterized in that the annular projection has a tapered outer peripheral surface with a smaller diameter toward the axially outer side.
According to the utility model discloses a rolling bearing unit for wheel support can make the instrument of impressing with even impressing force and with the sealing member butt with concentric, can not have the core to warp ground and impress the normal position of sealing ring to the outer lane.
Drawings
Fig. 1 is a sectional view of a wheel supporting rolling bearing unit according to embodiment 1 of the present invention.
Fig. 2 is an enlarged view of a portion II of fig. 1.
Fig. 3(a) is a state before fitting and fixing showing a process of fitting and fixing the seal ring to the outer end portion in the axial direction of the outer ring.
Fig. 3(B) is a state diagram after fitting and fixing showing a process of fitting and fixing the seal ring to the outer end portion in the axial direction of the outer ring.
Fig. 4 is a cross-sectional view of a seal ring according to modification 1 of the present invention.
Fig. 5 is a cross-sectional view of a seal ring according to modification 2 of the present invention.
Detailed Description
In addition, the term "outward" in the axial direction means the outer side in the width direction of the vehicle body in the assembled state to the automobile, and is the left side in fig. 1 and 2. Conversely, "inner" means the center side in the width direction of the vehicle body, and is the right side in fig. 1 and 2.
The rolling bearing unit for wheel support of the present embodiment is for a driven wheel, and includes an outer ring 1, a hub 2, a plurality of rolling elements 3, a plurality of studs 4, a seal ring 5, and a cover 6.
The outer ring 1 has a stationary flange 7 on the outer circumferential surface and a plurality of outer ring raceways 8a and 8b on the inner circumferential surface. In use, the stationary-side flange 7 is coupled and fixed to a knuckle of a suspension device, and the outer ring 1 is not rotated while being supported by the suspension device.
The hub 2 is formed by joining a hub main body 9 and an inner ring 10, and is disposed coaxially (concentrically) with the outer ring 1 on the inner diameter side of the outer ring 1.
The hub body 9 is provided with a circular wheel-shaped rotating-side flange 11 that projects radially outward from a portion that projects axially outward from an axially outer end opening of the outer ring 1 and that supports and fixes a braking rotating member such as a wheel (driven wheel) or a disc rotor. Specifically, the stud bolts 4 are respectively fitted in the insertion holes 22 provided in the rotary flange 11 in a zigzag manner.
Further, an inner ring raceway 12a of an axially outer row is provided on the outer peripheral surface of the hub body 9 and on a portion facing the outer ring raceway 8a of the axially outer row provided on the inner peripheral surface of the outer ring 1. Further, of the outer peripheral surface of the hub main body 9, an axially inner end portion facing the outer ring raceway 8b provided in the axially inner row of the inner peripheral surface of the outer ring 1 is provided with a small step portion 13.
An inner ring raceway 12b of an axially inner row is provided on the outer peripheral surface of the inner ring 10. The inner ring 10 is fitted and fixed to the small diameter stepped portion 13 of the hub main body 9 by interference fit, and the axial inner end surface is pressed by a caulking portion 23 formed at the axial inner end portion of the hub main body 9.
The rolling elements 3 are provided in plural in the portion between the outer ring raceway 8a and the inner ring raceway 12a in the axially outer row and in plural in the portion between the outer ring raceway 8b and the inner ring raceway 12b in the axially inner row, respectively, and are provided so as to be rollably held by the cage 24.
The seal ring 5 closes an axial outer end opening of an inner space 28, in which the plurality of rolling elements 3 are provided, existing between an inner peripheral surface of the outer ring 1 and an outer peripheral surface of the hub 2 in a state of being supported and fixed to an axial outer end portion of the outer ring 1.
On the other hand, the cover 6 is formed in a bottomed cylindrical shape, and closes the axial inner end opening of the outer ring 1 in a state of being assembled to the axial inner end portion of the outer ring 1.
As shown in fig. 2, in the present embodiment, the seal ring 5 is composed of a core material 29 and a sealing material 30.
The core member 29 is formed into an annular shape as a whole by press working such as pressing and bending a metal plate such as a steel plate, and includes a cylindrical fitting cylinder portion 31, an outward edge portion 32 bent outward in the radial direction from an axial outer end portion of the fitting cylinder portion 31, and an inner diameter support portion 33 folded back outward in the axial direction from an axial inner end portion of the fitting cylinder portion 31 and bent inward in the radial direction. The fitting cylindrical portion 31 is fitted and fixed by interference fit into a fitting surface 1a which is an inner peripheral surface of an axially outer end portion of the outer ring 1, and an axially inner surface of the outward edge portion 32 abuts against an axially outer end surface of the outer ring 1 with the sealing material 30 interposed therebetween. Further, the outer diameter of the outward flange 32 is set larger than the outer diameter of the axially outer end of the outer ring 1.
The sealing material 30 is made of an elastic material such as an elastomer like rubber, is bonded and fixed to the core material 29 by vulcanization adhesion, and has three contact lips (contact seal lips) 34, 35, and 36.
The three contact lips 34, 35, and 36 are arranged in this order from the side close to the internal space 28, with the respective tip end portions thereof facing the outer ring 1 so as to rotate relative to the outer ring, and are in sliding contact with the surface of the hub main body 9 over the entire circumference, with the first contact lip 34, the second contact lip 35, and the third contact lip 36 being arranged in this order.
The distal end portion of the first contact lip 34 is in sliding contact with the cylindrical surface portion 21 of the hub main body 9, which has no change in the axial radial dimension, over the entire circumference, and the function of preventing grease leakage from the internal space 28 is enhanced. The tip end portion of the second contact lip 35 is brought into sliding contact with the concave arc-shaped curved surface portion 20 over the entire circumference in a generatrix shape inclined in the direction toward the axial outer side as it goes toward the radial outer side, and the function of preventing the intrusion of foreign matter from the external space is enhanced. The tip end portion of the third contact lip 36 is in sliding contact with the curved surface portion 20 or the circular wheel surface portion 19 adjacent to the radially outer side of the curved surface portion 20 and perpendicular to the center axis of the hub main body 9 over the entire circumference, and the function of preventing foreign matter from entering from the external space is also improved. In fig. 1, 2, 4, and 5, the shape of the sealing material 30 including the three contact lips 34, 35, and 36 is shown in a free state of the sealing material 30.
The sealing material 30 is provided with an outer diameter side covering portion 38 that covers substantially the entire surface of the outward edge portion 32 of the core member 29. The axially inner surface of the outward flange 32 abuts against the axially outer end surface of the outer ring 1 with a part of the radially outer covering portion 38 interposed therebetween. Further, the dam portion 39 is formed by protruding outward in the radial direction from the axial outer end portion of the outer ring 1, of the outer edge portion 32 and the outer diameter side covering portion 38.
The axial inner surface and the axial outer surface of the outer diameter side covering portion 38 are flat surfaces perpendicular to the central axis of the hub main body 9.
Further, an annular protrusion 40 protruding in the axial direction toward the rotation-side flange 11 is provided on the axially outer side surface of the seal member 30 at a position smaller than the fitting diameter of the axially outer end portion of the outer ring 1, that is, the inner diameter Φ a of the fitting surface 1 a. The annular projection 40 guides the inner peripheral surface of the press-fitting tool 50 when the fitting cylinder portion 31 is fitted and fixed to the fitting surface 1a of the axially outer end portion of the outer ring 1 by interference fit as described above.
Specifically, as shown in fig. 3(a), the press-fitting diameter of the press-fitting tool 50, that is, the inner diameter Φ B of the press-fitting tool 50 is designed to be smaller than the inner diameter Φ a of the fitting surface 1a and slightly larger than the outer diameter of the annular protrusion 40. The seal ring 5 taken out from the aligning device is provided in the axially outer opening of the outer ring 1. Further, the inner peripheral surface of the press-fitting tool 50 is guided by the annular projection 40, and the tip end of the press-fitting tool 50 is brought into contact with the axially outer surface of the outer diameter side covering portion 38. Then, as shown in fig. 3(B), the outward edge portion 32 and the outer diameter side covering portion 38 are pushed toward the outer ring 1 by the press-fitting tool 50, whereby the fitting cylindrical portion 31 is fitted and fixed to the fitting surface 1a of the axial outer end portion of the outer ring 1. At this time, since the press-fitting tool 50 is guided by the annular projection 40, the press-fitting tool 50 and the seal ring 5 are not eccentric, and the seal ring 5 can be press-fitted to the normal position of the outer ring 1 without deforming the core material 29.
In the present embodiment, the annular projection 40 is provided at the inner diameter side end portion of the axial outer side surface of the outer diameter side covering portion 38, and is provided at a position partially overlapping the fitting tube portion 31 of the core member 29 as viewed in the axial direction. The annular projection 40 may be set to have an axial length such that a labyrinth seal is formed between the annular projection and the circular wheel surface portion 19 of the rotating-side flange 11 facing each other.
According to the rolling bearing unit for wheel support of the present embodiment having the above-described configuration, when the fitting cylindrical portion 31 of the core material 29 of the seal ring 5 is fitted and fixed into the fitting surface 1a of the outer end portion in the axial direction of the outer ring 1, the press-fitting tool 50 can be brought into concentric contact with the seal material 30 with a uniform press-fitting force, and the seal ring 5 can be press-fitted to the normal position of the outer ring 1 without deformation of the core material 29. Further, since the press-fitting tool 50 and the seal ring 5 are prevented from being eccentric, the axial thickness of the axial outer surface of the outer diameter side covering portion 38, which is brought into contact with the press-fitting tool 50, can be designed to be thin.
In addition, in the case of carrying out the present invention, as a modification 1 of the above embodiment, as shown in fig. 4, the annular projection 40A may have a tapered outer peripheral surface 41 with a smaller diameter as it goes to the outside in the axial direction. The tapered outer peripheral surface 41 is not limited to a straight shape, and may be a convex curved surface. In the case of this configuration, even if the seal ring 5 cut out from the fixed conveyance device is disposed in a state of being slightly inclined toward the axial outside opening of the outer ring 1, the seal ring 5 can be press-fitted while correcting the inclination by the press-fitting tool 50 as long as the press-fitting tool 50 is matched with the axial center of the outer ring 1.
In addition, in the case of carrying out the present invention, as a 2 nd modification of the above embodiment, as shown in fig. 5, the annular projection 40B may be formed intermittently in the circumferential direction. The annular projections 40B of the 2 nd modification are provided at 3 locations arranged evenly in the circumferential direction. The annular projection 40B may be provided at 4 or more positions. In this case, even if the annular projection 40B contacts the rotation-side flange 11, heat generation due to torque generation and loss of the annular projection 40B are small, so that the annular projection 40B can be further increased in height, and concentricity between the press-fitting tool 50 and the seal ring 5 can be improved. Further, as in modification 1, when the outer peripheral surface 41 of the annular projection 40B is formed into a tapered convex curved surface, the alignment of the seal ring 5 can be improved.
The present invention can be implemented by appropriately combining the configurations of the above-described embodiments (including the modifications).
The wheel supporting rolling bearing unit according to the present invention is not limited to the above-described driven wheel, and may be applied to a driving wheel.
The annular projection of the present invention may be formed of 3 projections provided on the same circumference of the inner peripheral surface of the guide pressing tool.
Claims (4)
1. A rolling bearing unit for wheel support, comprising:
an outer ring having an outer ring raceway on an inner circumferential surface thereof;
a hub having an inner ring raceway on an outer circumferential surface thereof, and a rotating-side flange that extends outward in an outer diameter direction at a portion located axially outward of the outer ring and supports a fixed wheel;
a plurality of rolling elements provided between the outer ring raceway and the inner ring raceway so as to be rollable; and
a seal ring that closes an axial outer end opening of an inner space existing between an inner peripheral surface of the outer ring and an outer peripheral surface of the hub in a state of being supported and fixed to an axial outer end portion of the outer ring,
the seal ring comprises a core material and a sealing material made of an elastic material supported by the core material,
the core material has a fitting cylinder portion made of a metal material and having an annular shape as a whole and fitted and fixed to an axial outer end portion of the outer ring, and an outward edge portion bent radially outward from the axial outer end portion of the fitting cylinder portion,
the seal member has a contact lip made of an elastic material, an outer diameter side covering portion covering the periphery of the outward edge portion, and an annular protrusion provided at a position smaller than the fitting diameter of the axially outer end portion of the outer ring and protruding toward the rotation side flange.
2. The rolling bearing unit for wheel support according to claim 1, wherein the annular protrusion is provided over an entire circumference.
3. The rolling bearing unit for wheel support according to claim 1, wherein the annular protrusion is formed intermittently in a circumferential direction.
4. The rolling bearing unit for wheel support according to any one of claims 1 to 3, wherein the annular projection has a tapered outer peripheral surface that becomes smaller toward an axially outer side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018142358A JP7135543B2 (en) | 2018-07-30 | 2018-07-30 | Manufacturing method of rolling bearing unit for wheel support |
| JP2018-142358 | 2018-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290504U true CN210290504U (en) | 2020-04-10 |
Family
ID=68576631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921149734.0U Active CN210290504U (en) | 2018-07-30 | 2019-07-22 | Rolling bearing unit for wheel support |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7135543B2 (en) |
| CN (1) | CN210290504U (en) |
| DE (1) | DE202019104178U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894992A (en) * | 2020-08-06 | 2020-11-06 | 中国铁建重工集团股份有限公司 | Engineering machine, main bearing and sealing element |
| CN112797080A (en) * | 2021-02-03 | 2021-05-14 | 浙江万向精工有限公司 | Magnetic sealing assembly |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5196092B2 (en) * | 2005-11-04 | 2013-05-15 | Ｎｏｋ株式会社 | Sealing device |
| JP5573199B2 (en) * | 2009-02-12 | 2014-08-20 | 日本精工株式会社 | Rolling bearing unit for wheel support with seal ring |
| JP5311649B2 (en) * | 2009-03-30 | 2013-10-09 | 内山工業株式会社 | Annular sealing device |
| JP6838354B2 (en) * | 2016-11-01 | 2021-03-03 | 日本精工株式会社 | Seal ring and rolling bearing unit with seal ring |
-
2018
- 2018-07-30 JP JP2018142358A patent/JP7135543B2/en active Active
-
2019
- 2019-07-22 CN CN201921149734.0U patent/CN210290504U/en active Active
- 2019-07-30 DE DE202019104178.1U patent/DE202019104178U1/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894992A (en) * | 2020-08-06 | 2020-11-06 | 中国铁建重工集团股份有限公司 | Engineering machine, main bearing and sealing element |
| CN112797080A (en) * | 2021-02-03 | 2021-05-14 | 浙江万向精工有限公司 | Magnetic sealing assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7135543B2 (en) | 2022-09-13 |
| DE202019104178U1 (en) | 2019-10-29 |
| JP2020020351A (en) | 2020-02-06 |
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