GB2538771A - Sealing arrangement - Google Patents

Sealing arrangement Download PDF

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Publication number
GB2538771A
GB2538771A GB1509176.2A GB201509176A GB2538771A GB 2538771 A GB2538771 A GB 2538771A GB 201509176 A GB201509176 A GB 201509176A GB 2538771 A GB2538771 A GB 2538771A
Authority
GB
United Kingdom
Prior art keywords
sealing arrangement
seal
arrangement according
component
dynamic
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.)
Withdrawn
Application number
GB1509176.2A
Other versions
GB201509176D0 (en
Inventor
Organisciak Michel
Foti Claudio
Ribet Massimiliano
Panchetti Marco
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.)
SKF AB
Original Assignee
SKF AB
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 SKF AB filed Critical SKF AB
Priority to GB1509176.2A priority Critical patent/GB2538771A/en
Publication of GB201509176D0 publication Critical patent/GB201509176D0/en
Publication of GB2538771A publication Critical patent/GB2538771A/en
Withdrawn legal-status Critical Current

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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
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F16J15/4476—Labyrinth packings with radial path
    • F16J15/4478—Pre-assembled packings
    • 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
    • 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
    • F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
    • F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing 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
    • 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
    • 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
    • F16C33/80—Labyrinth sealings
    • 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
    • F16C33/80—Labyrinth sealings
    • F16C33/805—Labyrinth sealings in addition to other sealings, e.g. dirt guards to protect sealings with sealing 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
    • F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
    • F16J15/3256—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/30—Angles, e.g. inclinations
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/20—Application independent of particular apparatuses related to type of movement
    • F16C2300/22—High-speed rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/10—Railway vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Bearings (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

The sealing arrangement 1 is for sealing a radial gap 2 between relatively rotatable inner and outer first and second components 3, 4. The first component is rotational around an axis of rotation (a) and the second component is coaxially arranged around the first component. wherein the sealing arrangement comprises a dynamic or moving seal part 5 which is connected with the first component. The arrangement also comprises a static seal part 6 which is connected with the second component. The sealing arrangement comprises a first labyrinth and second labyrinth seals 7, 8. The sealing arrangement further comprises at least one further labyrinth seal 9 or 10 wherein the at least one further labyrinth seal is arranged radially between the first labyrinth seal and the second labyrinth seal and wherein the at least one further labyrinth seal is formed by a gap 11, 12 between a set of opposing surfaces 13, 14; 15, 16 of the dynamic and the static seal part wherein the opposing surfaces have a tapered shape.

Description

Sealin2 Arran2ement
Technical Field
The invention relates to a sealing arrangement for sealing a radial gap between relatively rotatable inner and outer first and second components, wherein the first component is rotational around an axis of rotation and the second component is coaxially arranged around the first component, wherein the sealing arrangement comprises a dynamic seal part which is connected with the first component, wherein the sealing arrangement comprises a static seal part which is connected with the second component, wherein the sealing arrangement comprises a first labyrinth seal which is formed by a first gap between one set of opposing surfaces of the dynamic and the static seal part and wherein the sealing arrangement comprises a second labyrinth seal which is folined by a second gap between one set of opposing surfaces of the dynamic and the static seal part.
Background
Sealing arrangements of this kind are known in the art. They are required to keep contamination and water outside a bearing arrangement and to limit or prevent the grease leakage. Specifically in the railway field sealing arrangements of the mentioned kind are used. The pre-known designs have several drawbacks.
One important drawback is the limitation of the rotational speed. In many 5 cases it is impossible to use conventional sealing arrangements in the railway field for speeds above 200 km/h, in compact Traction Bearing Units for example, due to excessively high friction torque and heat generation in the sealing arrangement. Furthermore, the sealing effect of a non-contact labyrinth seal is often not satisfying Finally, pre-known sealing arrangements It( are very sensitive with respect to the axial clearance of the bearing.
Thus, it is an object of the present invention to propose a sealing arrangement of the kind mentioned above which allows an improved sealing effect and to reduce the friction in the seal, specifically to enable a seal in a railway 15 application to work at the desired and required high train speeds
Summary of the invention
A solution according to the invention is characterized in that the sealing arrangement further comprises at least one further labyrinth seal, wherein the at least one further labyrinth seal is arranged radially between the first labyrinth seal and the second labyrinth seal and wherein the at least one further labyrinth seal is formed by a gap between a set of opposing surfaces of the dynamic and the static seal part, wherein the opposing surfaces have a tapered (conical) shape.
The gap between the set of opposing surfaces of the dynamic and the static seal part, which foul' the at least one further labyrinth seal, has preferably at least partially a constant width.
Preferably, two further labyrinth seals are arranged at a radial distance.
According to a preferred embodiment, the sealing arrangement further comprises a lip seal. The lip seal can be arranged between the first and second labyrinth seals. It comprises preferably a highly flexible sealing lip which is arranged at one of the seal parts, wherein one of the tapered opposing surfaces of the at least one further labyrinth seal is formed by a surface of the sealing lip.
The angle of the tapered opposing surfaces lies preferably between 15° and 45° to the axis of rotation, specifically preferred between 25° and 35° The dynamic seal part can be made of a sheet metal part which has a profile in a radial cross section by which the at least one tapered opposing surface is formed.
The dynamic seal part can have a radial cross section which has the shape of the number "3-.
Furtheitnore, a layer made of elastomeric or rubber material can be arranged 25 between the dynamic seal part and the first component. The layer has preferably a substantially constant thickness.
The static seal part can be made of a sheet metal part at which an elastomeric or rubber material is attached, wherein the elastomeric or rubber material forms the at least one tapered opposing surface. The elastomeric or rubber material can be attached to the sheet metal part by adhesive bonding, especially by vulcanization.
The first component is preferably a rotating shaft or a bearing inner ring. The second component is preferably a stationary housing or a bearing outer ring.
The proposed seal design is especially suitable for taper roller bearing units and provides an optimized multi-stage labyrinth and a contacting radial lip. io The friction of the seal is reduced compared with pre-known solutions; also, the protection from the environment is improved.
A specifically advantageous effect is obtained by the described labyrinth seal to prevent contamination reaching the radially contacting radial lip.
That is, the proposed seal allows to reduce the friction and heat generation of the seal at any speed. The enhanced protection from the external environment by the multi-stage labyrinth allows a reduction of the seal radial load and therefore of the friction. Moreover the rubber on the inner side of the flinger reduces the heat dissipation to the bearing inner ring and therefore the lubrication problems due to too high temperature between the roller flange and the raceway.
The sealing arrangement is normally sealing a bearing arrangement which is typically greased with a first type of grease. At the other hand, the sealing arrangement can be greased with a second type of grease, wherein the two types of grease are beneficially separated by the first labyrinth seal. That is, the mentioned labyrinth seal prevents a grease mixture between bearing grease and seal grease. This allows the use of a specific grease in the sealing arrangement.
The sealing arrangement may seal a roller bearing, especially a taper roller 5 bearing. The machine arrangement is preferably a railway bearing unit. That is, the present invention is preferably used in the railway field and here specifically in traction bearing units. More specifically, the proposed sealing design is preferably employed in a railway taper rolling bearing unit and provides an optimized labyrinth seal and a radial lip seal. Thus, the friction of the seal at io high speeds is significantly reduced compared with pre-known sealing concepts. Also the protection from the environment is improved.
The proposed arrangement ensures a compact design and an effective sealing effect.
The proposed sealing concept allows to reduce the friction and heat generation in the seal. The sealing arrangement can therefore be used for high speed applications. Moreover the labyrinth provides sufficient sealing capability at high speed.
Brief description of the drawing
The drawing shows an embodiment of the invention. The single figure shows a radial cross section through a sealing arrangement which is part of a railway bearing unit.
Detailed description of the invention
In the figure a sealing arrangement 1 is shown which is part of a railway bear-s ing unit in the present case. In the left region of the figure a bearing (taper roller bearing) is arranged which is depicted only very schematically. The sealing arrangement 1 seals the bearing arrangement against the environment, which is located in the right region of the figure.
io The bearing arrangement 1 supports a rotating shaft 3 (which is a first component) in a stationary housing 4 (which is a second component; the housing can also be the outer bearing ring). The shaft 3 rotates around an axis a. That is, the sealing arrangement 1 seals a radial gap 2 between the first and second components 3 and 4.
The sealing arrangement I comprises a dynamic seal part 5 which is connected with the first component 3, i.e. with the shaft. Furthetmore, the sealing arrangement 1 comprises a static seal part 6 which is connected with the second component 4, i.e. with the housing.
As can be seen in the figure, the sealing arrangement 1 comprises a first labyrinth seal 7 which is formed by a first gap between one set of opposing surfaces of the dynamic and the static seal part 5 and 6. This first labyrinth seal 7 is arranged at a radially inner region of the sealing arrangement 1. In the de- picted example, the dynamic seal part 5 has a radial protrusion at its axially inner end, which extends in a radially outward direction from an inner cylindrical portion of the dynamic seal part. The static seal part 6 has an axial protrusion that extends over this radial protrusion. The static seal part 6 further has a radial extension that extends in a radially inward direction towards a ra-dially outer surface of the cylindrical portion of the dynamic seal part 5. The first labyrinth seal 7 thus comprises: a first axial gap section between radially opposing surfaces of the radial protrusion of the dynamic seal part 5 and the axial protrusion of the static D seal part 6; - a radial gap section between axially opposing surfaces of the radial pro-trusion of the dynamic seal part 5 and the radial extension of the static seal part 6; and - a second axial gap section between radially opposed surfaces of the inner cylindrical portion of the dynamic seal part 5 and the radial extension of the static seal part 6.
Furthermore, the sealing arrangement 1 comprises a second labyrinth seal 8 which is formed by a second gap between one set of opposing surfaces of the is dynamic and the static seal part 5 and 6 This second labyrinth seal 8 is arranged in a radially outer region of the sealing arrangement I. In the depicted example, the static seal part 6 has an essentially U-shaped section. The dyanmic seal part 5 has an outer cylindrical portion that extends in an axially inward direction into a radial gap between first and second legs of the U-shaped section. The second labyrinth seal 8 thus comprises first and second axial gap portions and a radial gap portion. The first radial gap portion is formed between a radially inner surface of an outer leg of the U-shaped section and a radially outer surface of the outer cylindrical portion. The second radial gap portion is formed between a radially outer surface of the inner leg of the U-shaped section and a radially inner surface of the outer cylindrical portion. The axial gap is formed between opposing axial side faces of the U-shaped section and the outer cylindrical portion.
Suitably, the radial dimension of the first radial gap portion, which is open to the environment, is very small e g 0 5 mm, in order to restrict the entry of contamination. Preferably, the axial gap portion of the second labyrinth seal 8 is larger in axial dimension, e.g. 1.5 mm, to accommodate axial displacements between the shaft 3 and the housing 4.
In the depicted embodiment, the second radial gap portion of the second labyrinth seal 8 is non-constant in radial dimension. The inner leg of the U-shaped section has a small radial protrusion, which defines a collection space 20 for 10 moisture and other contaminants.
According to the concept of the invention, the sealing arrangement 1 further comprises at least one further labyrinth seal; in the depicted example two further labyrinth seals 9 and 10 are provided. As can be seen the further labyrinth ii seals 9 and 10 are arranged radially between the first labyrinth seal 7 and the second labyrinth seal 8.
As can be seen further from the figure, the further labyrinth seals 9 and 10 are formed by a gap 11 and 12 respectively between a set of opposing surfaces 13 and 14 (for the gap 11) and 15 and 16 (for the gap 12). The opposing surfaces 13, 14, 15 and 16 are formed by the dynamic and the static seal parts 5 and 6 respectively, wherein those surfaces 13, 14, 15, 16 all have a tapered (conical) shape. The gaps 11 and 12 have at least along a certain extension a constant width W. Furthermore, a lip seal 17 is arranged effectively between the first and the second labyrinth seal 7 and 8. The lip seal 17 has a sealing lip 18 which is part of the static seal part 6. The sealing lip 18 is arranged for radially contacting its sliding counterpart, i.e. the inner cylindrical portion of the dynamic seal part 5.
The dynamic seal part 5 as well as the static seal part 6 comprises a sheet metal part which is shown in the figure in the radial cross section. More specifically, the sheet metal part of the dynamic seal part 5 has the shape of the number "3" in the radial cross section, forming opposing surfaces 14 and 16 which run under an angle a and 13 respectively, which is about 300 to the axis a of rotation in the depicted embodiment.
The sheet metal part of the dynamic seal part 5 is isolated by means of a layer 19 with a constant thickness d, which layer is made of rubber.
The static seal part 6 is also made of a sheet metal part, to which an elasto-meric material is attached by means of e.g. material bonding (vulcanization). The whole geometrical structure of the gaps of the labyrinth seals 7 and 8, the opposing surfaces 13 and 15 as well as the sealing lip 18 is formed from the el astomeric material.
A high speed sealing grease is used within the space between the two labyrinth seals 7 and 8, while a suitable bearing grease is used in the bearing arrangement. An effective separation of the two grease types is ensured by the first labyrinth seal 7.
Reference Numerals: 1 Sealing arrangement 2 Gap 3 Inner first component (shaft) 4 Outer / second component (housing) Dynamic seal part 6 Static seal part io 7 First labyrinth seal 8 Second labyrinth seal 9 Further labyrinth seal Further labyrinth seal 11 Gap i 12 Gap 13 Opposing surface 14 Opposing surface Opposing surface 16 Opposing surface 17 Lip seal 18 Sealing lip 19 Insulation layer Collection space for contaminants a Axis of rotation Width Thickness Angle Angle

Claims (15)

  1. Patent Claims: Sealing arrangement (1) for sealing a radial gap (2) between relatively rotatable inner and outer first and second components (3, 4), wherein the first component (3) is rotational around an axis of rotation (a) and the second component (4) is coaxially arranged around the first component (3), wherein the sealing arrangement (I) comprises a dynamic seal part (5) which is connected with the first component (3), wherein the sealing arrangement (1) comprises a static seal part (6) which is connected with the second component (4), wherein the sealing arrangement (1) comprises a first labyrinth seal (7) which is formed by a first gap between one set of opposing surfaces of the dynamic and the static seal part (5, 6) and wherein the sealing arrangement (1) comprises a second labyrinth seal (S) which is formed by a second gap between one set of opposing surfac-es of the dynamic and the static seal part (5, 6), characterized in thatDthe sealing arrangement (1) further comprises at least one further labyrinth seal (9, 10), wherein the at least one further labyrinth seal (9, 10) is arranged radially between the first labyrinth seal (7) and the second labyrinth seal (8) and wherein the at least one further labyrinth seal (9, 10) is formed by a gap (11, 12) between a set of opposing surfaces (13, 14; 15, 16) of the dynamic and the static seal part (5, 6), wherein the opposing surfaces (13, 14; 15, 16) have a tapered shape.
  2. 2. Sealing arrangement according to claim 1, characterized in that the gap (11, 12) between the set of opposing surfaces (13, 14; 15, 16) of the dynamic and the static seal part (5, 6), which form the at least one further labyrinth seal (9, 10), has at least partially a constant width (W).
  3. 3. Sealing arrangement according to claim 1 or 2, characterized in that two further labyrinth seals (9, 10) are arranged at a radial distance.
  4. Sealing arrangement according to one of claims 1 to 3, further comprising a lip seal (17).
  5. Sealing arrangement according to claim 4, characterized in that the lip seal (17) is arranged between the first and second labyrinth seals (7, 8).
  6. Sealing arrangement according to claim 5, characterized in that the lip seal (17) comprises a highly flexible sealing lip (18) which is arranged at one of the seal parts (5, 6), wherein one of the tapered opposing surfaces D (15) of the at least one further labyrinth seal (9, 10) is formed by a sur-face of the sealing lip (18).
  7. Sealing arrangement according to one of claims 1 to 6, characterized in that the angle (cc, 13) of the tapered opposing surfaces (13, 14; 15, 16) lies between 15° and 45° to the axis of rotation (a), preferably between 25° and 35°.
  8. 8. Sealing arrangement according to one of claims 1 to 7, characterized in that the dynamic seal part (5) is made of a sheet metal part which has a profile in a radial cross section by which the at least one tapered opposing surface (14, 16) is formed.
  9. Sealing arrangement according to claim 8, characterized in that the dynamic seal part (5) has a radial cross section which has the shape of the number three.
  10. Sealing arrangement according to claim 8 or 9, characterized in that a layer (19) made of elastomeric or rubber material is arranged between the dynamic seal part (5) and the first component (3).
  11. 11. Sealing arrangement according to claim 10, characterized in that the layer (19) has a substantially constant thickness (d).
  12. 12 Sealing arrangement according to one of claims 1 to 11, characterized in that the static seal part (6) is made of a sheet metal part to which an elastomeric or rubber material is attached, wherein the elastomereic or rub-ber material fon is the at least one tapered opposing surface (13, 15).D
  13. 13 Sealing arrangement according to claim 12, characterized in that the elastomeric or rubber material is attached to the sheet metal part by adhesive bonding, especially by vulcanization.
  14. 14. Sealing arrangement according to one of claims 1 to 13, characterized in that the first component (3) is a rotating shaft or a bearing inner ring.
  15. 15. Sealing arrangement according to one of claims 1 to 14, characterized in that the second component (4) is a stationary housing or a bearing outer ring.
GB1509176.2A 2015-05-28 2015-05-28 Sealing arrangement Withdrawn GB2538771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1509176.2A GB2538771A (en) 2015-05-28 2015-05-28 Sealing arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1509176.2A GB2538771A (en) 2015-05-28 2015-05-28 Sealing arrangement

Publications (2)

Publication Number Publication Date
GB201509176D0 GB201509176D0 (en) 2015-07-15
GB2538771A true GB2538771A (en) 2016-11-30

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Family Applications (1)

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GB1509176.2A Withdrawn GB2538771A (en) 2015-05-28 2015-05-28 Sealing arrangement

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233835A (en) * 2021-11-23 2022-03-25 重庆清平机械有限责任公司 Sealing mechanism of speed reducer
DE102022003477B3 (en) 2022-09-21 2024-02-15 C&U Europe Holding GmbH Method for assembling a wheel bearing assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2623972Y (en) * 2003-06-05 2004-07-07 东莞市隆泰实业有限公司 Sealing device for non-contact carrying roller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2623972Y (en) * 2003-06-05 2004-07-07 东莞市隆泰实业有限公司 Sealing device for non-contact carrying roller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233835A (en) * 2021-11-23 2022-03-25 重庆清平机械有限责任公司 Sealing mechanism of speed reducer
CN114233835B (en) * 2021-11-23 2023-07-18 重庆清平机械有限责任公司 Sealing mechanism for speed reducer
DE102022003477B3 (en) 2022-09-21 2024-02-15 C&U Europe Holding GmbH Method for assembling a wheel bearing assembly

Also Published As

Publication number Publication date
GB201509176D0 (en) 2015-07-15

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