WO2021195675A1 - Railway bogie side bearer - Google Patents

Railway bogie side bearer Download PDF

Info

Publication number
WO2021195675A1
WO2021195675A1 PCT/ZA2021/050020 ZA2021050020W WO2021195675A1 WO 2021195675 A1 WO2021195675 A1 WO 2021195675A1 ZA 2021050020 W ZA2021050020 W ZA 2021050020W WO 2021195675 A1 WO2021195675 A1 WO 2021195675A1
Authority
WO
WIPO (PCT)
Prior art keywords
railway bogie
bogie side
side bearer
formation
bearing formation
Prior art date
Application number
PCT/ZA2021/050020
Other languages
French (fr)
Inventor
Jean-Patrick LEGER
Original Assignee
Leger Jean Patrick
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 Leger Jean Patrick filed Critical Leger Jean Patrick
Publication of WO2021195675A1 publication Critical patent/WO2021195675A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/14—Side bearings
    • B61F5/142—Side bearings made of rubber elements, graphite or the like

Definitions

  • This invention relates to a railway bogie side bearer.
  • Railway bogie side bearers are typically manufactured from materials having relatively high mechanical and impact strength, coupled with acceptable, but not optimal, coefficient of friction (CoF) values.
  • CoF coefficient of friction
  • Composite materials having a relatively low coefficient of friction (CoF) value are associated with having relatively low impact and/or mechanical strength, thus while composites having relatively low CoF values may be suitable to enhance slidable displacement between moving parts, these types of composites typically lack the required degree of impact and/or mechanical strength to, when in use, withstand the forces impacting on the railway bogie side bearer.
  • CoF coefficient of friction
  • a railway bogie side bearer which includes: a body; and a bearing formation mountable about the body for defining a bearing surface; and wherein the bearing formation has a coefficient of friction value less than that of the body.
  • the body may include an upward facing portion for in use, receiving a part of a vehicle to be supported on a railway bogie.
  • the body may include a downward facing portion which is further dimensioned for mounting the railway bogie side bearer onto the railway bogie.
  • the body may include a metallic support frame mounted onto the downward facing portion.
  • the railway bogie side bearer may further include a biasing means for biasing the upward facing portion upward away from the downward facing portion.
  • the biasing means may include a spring-loaded device.
  • the body may include one or more receiving zones defined therein for complementarily receiving the bearing formation therein.
  • the receiving zone may take the form of a recess.
  • the receiving zone may take the form of an aperture.
  • the bearing formation may have a CoF value of less than about 0.2 when employing the formula as set out in document ASTM D3702 - 94(2019) entitled “Standard Test Method for Wear Rate and Coefficient of Friction of Materials in Self- Lubricated Rubbing Contact Using a Thrust Washer Testing Machine”.
  • Abovementioned international standard was developed in accordance with internationally recognised principles on standardisation established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organisation Technical Barriers to Trade (TBT) Committee.
  • the bearing formation and receiving zone may define a retaining arrangement for retaining the bearing formation in the receiving formation in a fixed and/or releasable manner.
  • the retaining arrangement may comprise male and female type formations defined circumferentially about a sidewall of the receiving zone, and, circumferentially about the bearing formation, respectively.
  • the male type formation may take the form of a ridge extending circumferentially towards the inner of the receiving zone.
  • the female type formation may take the form of a groove defined circumferentially about the bearing formation.
  • the bearing formation may further be shaped and sized to define the bearing surface protruding above the body when received in the receiving zone.
  • the bearing formation may also be shaped and sized to define the bearing surface flush with the body when received in the receiving zone.
  • the body may be manufactured from a synthetic or metallic material.
  • the synthetic material may include a polymer material, or a mixture wherein the mixture includes a polymer material.
  • the body may be manufactured from a material having resiliently deformable properties.
  • a bearing formation for in use, defining a bearing surface of a railway bogie side bearer, which bearing formation is manufactured from a material having a coefficient of friction value less than that of the railway bogie side bearer.
  • the railway bogie side bearer may include a metallic support frame mounted onto a downward facing portion thereof.
  • the railway bogie side bearer may further include a biasing means for biasing an upward facing portion thereof upward away from the downward facing portion.
  • the biasing means may include a spring-loaded device.
  • the railway bogie side bearer may include one or more receiving zones defined therein for complementarily receiving the bearing formation therein.
  • the receiving zone may take the form of a recess.
  • the receiving zone may take the form of an aperture.
  • the bearing formation may have a CoF value of less than about 0.2 when employing the formula as set out in document ASTM D3702 - 94(2019) entitled “Standard Test Method for Wear Rate and Coefficient of Friction of Materials in Self- Lubricated Rubbing Contact Using a Thrust Washer Testing Machine”.
  • Abovementioned international standard was developed in accordance with internationally recognised principles on standardisation established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organisation Technical Barriers to Trade (TBT) Committee.
  • the bearing formation may be kept in place in the receiving zone in a fixed, or, a releasable manner.
  • a suitable adhesive may be incorporated for retaining the bearing formation in the receiving zone.
  • the bearing formation may fit in the receiving zone in a friction fit manner.
  • the bearing formation and receiving zone may define a retaining arrangement for retaining the bearing formation in the receiving formation in a fixed and/or releasable manner.
  • the retaining arrangement may comprise male and female type formations defined circumferentially about a sidewall of the receiving zone, and, circumferentially about the bearing formation, respectively.
  • the male type formation may take the form of a ridge extending circumferentially towards the inner of the receiving zone.
  • the female type formation may take the form of a groove defined circumferentially about the bearing formation.
  • the bearing formation may further be shaped and sized to define the bearing surface protruding above the body when received in the receiving zone.
  • the bearing formation may also be shaped and sized to define the bearing surface flush with an upper facing surface of the railway bogie side bearer when received in the receiving zone.
  • the railway bogie side bearer may be manufactured from a synthetic or metallic material.
  • the synthetic material may include a polymer material, or a mixture wherein the mixture includes a polymer material.
  • the railway bogie side bearer may be manufactured from a material having resiliently deformable properties.
  • the bearing formation and complementarily shaped receiving zones may take any geometric shape and size and the amount of bearing formations, spacing about the body, and material properties thereof may be varied and selected as per user requirements.
  • Figures 1 and 2 depict a first embodiment
  • Figure 3 illustrates the retaining arrangement
  • Figure 4 depicts a second embodiment 110;
  • Figures 5 and 6 depict a third embodiment 210;
  • Figures 7 and 8 are top perspective, and, transverse cross-sectional views of the bearing formation, respectively, in accordance with the invention.
  • reference numeral 10 generally depicts a railway bogie side bearer in accordance with the invention.
  • Figures 1 and 2 depict a railway bogie side bearer 10 which includes a body 12 having an upward facing portion 14 for in use, receiving a part of a vehicle to be supported on a railway bogie, a downward facing portion 16 which is further dimensioned for mounting the railway bogie side bearer onto the railway bogie, a bearing formation 18 mountable about the upward facing portion 14 for defining a bearing surface 20, and wherein the bearing formation 18 has a coefficient of friction value less than that of the body 12.
  • Body 12 is shaped and configured to be receivably mounted about a portion of the railway bogie.
  • Figure 4 depicts a second embodiment 110 wherein the upper facing surface 114 includes a biasing means for biasing the upper facing surface 114 away from the body 112 to yield a constant contact railway bogie side bearer 110, ensuring constant contact between the bearing formation 118 and a railway truck supported by the bogie.
  • the biasing means can include a spring-loaded device.
  • Figures 5 and 6 depict a third embodiment 210 of the railway bogie side bearer in the form of an elongate body 212.
  • the elongate body 212 includes a frame 214 for ease of mounting, where the frame 214 will be tac welded to the railway bogie.
  • the body 12, 112 and 212 will include one or more receiving zones defined therein for complementarily receiving the bearing formation 18, 118 and 218 therein.
  • the receiving zone can take the form of a recess 22 as shown in figure 2, alternatively, the receiving zone can also take the form of an aperture.
  • the bearing formation 18, 118 and 218, will have a CoF value of less than about 0.2 when employing the formula as set out in document ASTM D3702 - 94(2019) entitled “Standard Test Method for Wear Rate and Coefficient of Friction of Materials in Self-Lubricated Rubbing Contact Using a Thrust Washer Testing Machine”.
  • the bearing formation 18, 118 and 218 and receiving zone further defines a retaining arrangement for retaining the bearing formation 18, 118 and 218 in the receiving formation in a fixed and/ or releasable manner.
  • the retaining arrangement comprises male and female type formations defined circumferentially about an inner sidewall of the receiving zone, and, circumferentially about the bearing formation 18, 118 and 218, respectively.
  • the male type formation takes the form of a ridge 24 extending circumferentially towards the inner of the receiving zone.
  • Figures 7 and 8 more clearly illustrate the female type formation taking the form of a groove 26 defined circumferentially about the bearing formation 18.
  • the bearing formation 18, 118 and 218, can further be shaped and sized to define the bearing surface protruding above an outer facing surface of the body 12, 112 and 212, when received in the receiving zone, alternatively, the bearing formation can also be shaped and sized to define the bearing surface flush with the body 12, 112 and 212, when received in the receiving zone.
  • the body 12, 112 and 212 can be manufactured from a synthetic or metallic material.
  • the synthetic material can include a polymer material, or a mixture wherein the mixture includes a polymer material.
  • the body 12, 112 and 212 can be manufactured from a material having resiliently deformable properties.
  • the Applicant considers the invention advantageous in that a railway bogie side bearer is disclosed wherein the bearing formations defining the bearing surfaces are manufactured from a material having a coefficient of friction (CoF) value less than that of the remaining structure.
  • CoF coefficient of friction
  • This combination of use of materials yields a railway bogie side bearer having a relatively high mechanical strength coupled with improved bearing characteristics.
  • the thickness dimension of the bearing formations in conjunction with the depth aspect of the receiving zone can further be such as to define the bearing surface flush with an outer surface of the upper portion, or such as to allow the bearing surfaces to protrude above the outer surface of the upper portion.

Abstract

A railway bogie side bearer which includes a body having an upward facing portion for in use, receiving a part of a vehicle to be supported on a railway bogie; a downward facing portion which is further dimensioned for mounting the railway bogie side bearer onto a railway bogie; and a bearing formation mountable about the upward facing portion for defining a bearing surface; and wherein the bearing formation has a coefficient of friction value less than that of the body.

Description

RAILWAY BOGIE SIDE BEARER
Technical field of the invention
This invention relates to a railway bogie side bearer.
Background to the invention
Railway bogie side bearers are typically manufactured from materials having relatively high mechanical and impact strength, coupled with acceptable, but not optimal, coefficient of friction (CoF) values.
Composite materials having a relatively low coefficient of friction (CoF) value are associated with having relatively low impact and/or mechanical strength, thus while composites having relatively low CoF values may be suitable to enhance slidable displacement between moving parts, these types of composites typically lack the required degree of impact and/or mechanical strength to, when in use, withstand the forces impacting on the railway bogie side bearer.
The need therefore exists for a railway bogie side bearer having improved bearing surface characteristics, while at the same time having a certain degree of impact and/or mechanical strength.
Summary of the invention
According to the invention there is provided a railway bogie side bearer which includes: a body; and a bearing formation mountable about the body for defining a bearing surface; and wherein the bearing formation has a coefficient of friction value less than that of the body. The body may include an upward facing portion for in use, receiving a part of a vehicle to be supported on a railway bogie.
The body may include a downward facing portion which is further dimensioned for mounting the railway bogie side bearer onto the railway bogie.
The body may include a metallic support frame mounted onto the downward facing portion.
The railway bogie side bearer may further include a biasing means for biasing the upward facing portion upward away from the downward facing portion.
The biasing means may include a spring-loaded device.
The body may include one or more receiving zones defined therein for complementarily receiving the bearing formation therein.
The receiving zone may take the form of a recess.
The receiving zone may take the form of an aperture.
The bearing formation may have a CoF value of less than about 0.2 when employing the formula as set out in document ASTM D3702 - 94(2019) entitled “Standard Test Method for Wear Rate and Coefficient of Friction of Materials in Self- Lubricated Rubbing Contact Using a Thrust Washer Testing Machine”. Abovementioned international standard was developed in accordance with internationally recognised principles on standardisation established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organisation Technical Barriers to Trade (TBT) Committee.
The bearing formation and receiving zone may define a retaining arrangement for retaining the bearing formation in the receiving formation in a fixed and/or releasable manner. The retaining arrangement may comprise male and female type formations defined circumferentially about a sidewall of the receiving zone, and, circumferentially about the bearing formation, respectively.
The male type formation may take the form of a ridge extending circumferentially towards the inner of the receiving zone.
The female type formation may take the form of a groove defined circumferentially about the bearing formation.
The bearing formation may further be shaped and sized to define the bearing surface protruding above the body when received in the receiving zone.
The bearing formation may also be shaped and sized to define the bearing surface flush with the body when received in the receiving zone.
The body may be manufactured from a synthetic or metallic material.
The synthetic material may include a polymer material, or a mixture wherein the mixture includes a polymer material.
The body may be manufactured from a material having resiliently deformable properties.
According to a second aspect of the invention there is provided a bearing formation for in use, defining a bearing surface of a railway bogie side bearer, which bearing formation is manufactured from a material having a coefficient of friction value less than that of the railway bogie side bearer.
The railway bogie side bearer may include a metallic support frame mounted onto a downward facing portion thereof.
The railway bogie side bearer may further include a biasing means for biasing an upward facing portion thereof upward away from the downward facing portion.
The biasing means may include a spring-loaded device. The railway bogie side bearer may include one or more receiving zones defined therein for complementarily receiving the bearing formation therein.
The receiving zone may take the form of a recess.
The receiving zone may take the form of an aperture.
The bearing formation may have a CoF value of less than about 0.2 when employing the formula as set out in document ASTM D3702 - 94(2019) entitled “Standard Test Method for Wear Rate and Coefficient of Friction of Materials in Self- Lubricated Rubbing Contact Using a Thrust Washer Testing Machine”. Abovementioned international standard was developed in accordance with internationally recognised principles on standardisation established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organisation Technical Barriers to Trade (TBT) Committee.
The bearing formation may be kept in place in the receiving zone in a fixed, or, a releasable manner.
As such a suitable adhesive may be incorporated for retaining the bearing formation in the receiving zone.
The bearing formation may fit in the receiving zone in a friction fit manner.
The bearing formation and receiving zone may define a retaining arrangement for retaining the bearing formation in the receiving formation in a fixed and/or releasable manner.
The retaining arrangement may comprise male and female type formations defined circumferentially about a sidewall of the receiving zone, and, circumferentially about the bearing formation, respectively.
The male type formation may take the form of a ridge extending circumferentially towards the inner of the receiving zone. The female type formation may take the form of a groove defined circumferentially about the bearing formation.
The bearing formation may further be shaped and sized to define the bearing surface protruding above the body when received in the receiving zone.
The bearing formation may also be shaped and sized to define the bearing surface flush with an upper facing surface of the railway bogie side bearer when received in the receiving zone.
The railway bogie side bearer may be manufactured from a synthetic or metallic material.
The synthetic material may include a polymer material, or a mixture wherein the mixture includes a polymer material.
The railway bogie side bearer may be manufactured from a material having resiliently deformable properties.
The bearing formation and complementarily shaped receiving zones may take any geometric shape and size and the amount of bearing formations, spacing about the body, and material properties thereof may be varied and selected as per user requirements.
Brief Description of the Drawings
The invention will now be described by way of the following, non-limiting example with reference to the accompanying drawings.
In the drawings: -
Figures 1 and 2 depict a first embodiment 10,
Figure 3 illustrates the retaining arrangement;
Figure 4 depicts a second embodiment 110; Figures 5 and 6 depict a third embodiment 210;
Figures 7 and 8 are top perspective, and, transverse cross-sectional views of the bearing formation, respectively, in accordance with the invention.
Detailed description of the drawings
In the drawings, reference numeral 10 generally depicts a railway bogie side bearer in accordance with the invention.
Figures 1 and 2 depict a railway bogie side bearer 10 which includes a body 12 having an upward facing portion 14 for in use, receiving a part of a vehicle to be supported on a railway bogie, a downward facing portion 16 which is further dimensioned for mounting the railway bogie side bearer onto the railway bogie, a bearing formation 18 mountable about the upward facing portion 14 for defining a bearing surface 20, and wherein the bearing formation 18 has a coefficient of friction value less than that of the body 12.
Body 12 is shaped and configured to be receivably mounted about a portion of the railway bogie.
Figure 4 depicts a second embodiment 110 wherein the upper facing surface 114 includes a biasing means for biasing the upper facing surface 114 away from the body 112 to yield a constant contact railway bogie side bearer 110, ensuring constant contact between the bearing formation 118 and a railway truck supported by the bogie.
The biasing means can include a spring-loaded device.
Figures 5 and 6 depict a third embodiment 210 of the railway bogie side bearer in the form of an elongate body 212.
In figure 6 the elongate body 212 includes a frame 214 for ease of mounting, where the frame 214 will be tac welded to the railway bogie. The body 12, 112 and 212 will include one or more receiving zones defined therein for complementarily receiving the bearing formation 18, 118 and 218 therein.
The receiving zone can take the form of a recess 22 as shown in figure 2, alternatively, the receiving zone can also take the form of an aperture.
The bearing formation 18, 118 and 218, will have a CoF value of less than about 0.2 when employing the formula as set out in document ASTM D3702 - 94(2019) entitled “Standard Test Method for Wear Rate and Coefficient of Friction of Materials in Self-Lubricated Rubbing Contact Using a Thrust Washer Testing Machine”.
Abovementioned international standard was developed in accordance with internationally recognised principles on standardisation established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organisation Technical Barriers to Trade (TBT) Committee.
The bearing formation 18, 118 and 218 and receiving zone further defines a retaining arrangement for retaining the bearing formation 18, 118 and 218 in the receiving formation in a fixed and/ or releasable manner.
The retaining arrangement comprises male and female type formations defined circumferentially about an inner sidewall of the receiving zone, and, circumferentially about the bearing formation 18, 118 and 218, respectively.
Shown in figures 2 and 3 the male type formation takes the form of a ridge 24 extending circumferentially towards the inner of the receiving zone.
Figures 7 and 8 more clearly illustrate the female type formation taking the form of a groove 26 defined circumferentially about the bearing formation 18. The bearing formation 18, 118 and 218, can further be shaped and sized to define the bearing surface protruding above an outer facing surface of the body 12, 112 and 212, when received in the receiving zone, alternatively, the bearing formation can also be shaped and sized to define the bearing surface flush with the body 12, 112 and 212, when received in the receiving zone.
The body 12, 112 and 212, can be manufactured from a synthetic or metallic material.
The synthetic material can include a polymer material, or a mixture wherein the mixture includes a polymer material.
The body 12, 112 and 212 can be manufactured from a material having resiliently deformable properties.
The Applicant considers the invention advantageous in that a railway bogie side bearer is disclosed wherein the bearing formations defining the bearing surfaces are manufactured from a material having a coefficient of friction (CoF) value less than that of the remaining structure. This combination of use of materials yields a railway bogie side bearer having a relatively high mechanical strength coupled with improved bearing characteristics. The thickness dimension of the bearing formations in conjunction with the depth aspect of the receiving zone can further be such as to define the bearing surface flush with an outer surface of the upper portion, or such as to allow the bearing surfaces to protrude above the outer surface of the upper portion.
It shall be understood that the examples are provided for illustrating the invention further and to assist a person skilled in the art with understanding the invention and are not meant to be construed as unduly limiting the reasonable scope of the invention.

Claims

Claims
1. A railway bogie side bearer which includes: a body having; and a bearing formation mountable about the body for defining a bearing surface; and wherein the bearing formation has a coefficient of friction value less than that of the body.
2. A railway bogie side bearer as claimed in claim 1 wherein the body includes an upward facing portion for in use, receiving a part of a vehicle to be supported on a railway bogie.
3. A railway bogie side bearer as claimed in claim 1 or 2 wherein the body includes downward facing portion which is further dimensioned for mounting the railway bogie side bearer onto the railway bogie.
4. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the body includes a metallic support frame mounted onto the downward facing portion.
5. A railway bogie side bearer as claimed in any one or more of the preceding claims which includes a biasing means for biasing the upward facing portion upward away from the downward facing portion.
6. A railway bogie side bearer as claimed in claim 5 wherein the biasing means includes a spring-loaded device.
7. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the body includes a receiving zone for complementarily receiving the bearing formation therein.
8. A railway bogie side bearer as claimed in claim 7 wherein the receiving zone takes the form of a recess.
9. A railway bogie side bearer as claimed in claim 7 wherein the receiving zone takes the form of an aperture.
10. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the bearing formation is kept in place in the receiving formation in a fixed manner.
11. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the bearing formation is kept in place in the receiving formation in a releasable manner.
12. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the bearing formation is kept in place in the receiving formation by incorporating a suitable adhesive.
13. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the bearing formation and receiving zone define a retaining arrangement for retaining the bearing formation in the receiving formation in a fixed and/ or releasable manner.
14. A railway bogie side bearer as claimed in claim 13 wherein the retaining arrangement comprises a male and female type formation.
15. A railway bogie side bearer as claimed in claim 14 wherein the male and female type formations are defined circumferentially about a sidewall of the receiving zone, and, circumferentially about the bearing formation, respectively.
16. A railway bogie side bearer as claimed in claim 15 wherein the male type formation takes the form of a ridge extending circumferentially about the receiving zone.
17. A railway bogie side bearer as claimed in claim 15 wherein the female type formation takes the form of a groove defined circumferentially about the bearing formation.
18. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the bearing formation is shaped and sized to define the bearing surface protruding above the body when received in the receiving zone.
19. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the bearing formation is shaped and sized to define the bearing surface flush with the body when received in the receiving zone.
20. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the body is manufactured from a synthetic and/or metallic material.
21. A railway bogie side bearer as claimed in claim 20 wherein the synthetic material includes a polymer material, or a mixture wherein the mixture includes a polymer material.
22. A railway bogie side bearer as claimed in any one or more of the preceding claims wherein the body is manufactured from a material having resiliently deformable properties.
23. A bearing formation for in use, defining a bearing surface of a railway bogie side bearer, which bearing formation is manufactured from a material having a coefficient of friction value less than that of the railway bogie side bearer.
24. A bearing formation as claimed in claim 23 having a coefficient of friction (COF) value of less than about 0.2.
25. A bearing formation as claimed in claim 23 onwards which is shaped and sized to, in use, define a bearing surface protruding above an upper facing surface of the railway bogie side bearer.
26. A bearing formation as claimed in claim 23 onwards which is shaped and sized to, in use, define a bearing surface flush with an upper facing surface of the railway bogie side bearer.
PCT/ZA2021/050020 2020-03-24 2021-03-24 Railway bogie side bearer WO2021195675A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA202001848 2020-03-24
ZA2020/01848 2020-03-24

Publications (1)

Publication Number Publication Date
WO2021195675A1 true WO2021195675A1 (en) 2021-09-30

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ID=77890653

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2021/050020 WO2021195675A1 (en) 2020-03-24 2021-03-24 Railway bogie side bearer

Country Status (1)

Country Link
WO (1) WO2021195675A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912343A (en) * 1974-04-03 1975-10-14 Hamilton Neil King Paton Vehicle side bearing and friction damper
US7966946B1 (en) * 2010-10-21 2011-06-28 Amsted Rail Company, Inc. Railway truck pedestal bearing adapter
WO2012142081A1 (en) * 2011-04-15 2012-10-18 Wabtec Holding Corp. High friction railroad car components with friction modifying inserts
US20140060380A1 (en) * 2012-08-31 2014-03-06 Strato, Inc. Wheelset to side frame interconnection for a railway car truck
WO2016099876A1 (en) * 2014-12-19 2016-06-23 Strato, Inc. Bearing adapter side frame interface for a railway car truck

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912343A (en) * 1974-04-03 1975-10-14 Hamilton Neil King Paton Vehicle side bearing and friction damper
US7966946B1 (en) * 2010-10-21 2011-06-28 Amsted Rail Company, Inc. Railway truck pedestal bearing adapter
WO2012142081A1 (en) * 2011-04-15 2012-10-18 Wabtec Holding Corp. High friction railroad car components with friction modifying inserts
US20140060380A1 (en) * 2012-08-31 2014-03-06 Strato, Inc. Wheelset to side frame interconnection for a railway car truck
WO2016099876A1 (en) * 2014-12-19 2016-06-23 Strato, Inc. Bearing adapter side frame interface for a railway car truck

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