IP Library › Granted Patent US 8,356,941
Granted Patent B2
US 8,356,941 · App. 12/660,916 · Granted Jan 22, 2013

Railway car bearing seal

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Quick Facts
Patent No.
US 8,356,941
App. No.
12/660,916
Granted
Jan 22, 2013
Kind
B2
Abstract

A bearing assembly is provided having a roller bearing with an inner raceway fitted around the journal portion of an axle. An outer raceway combines with the inner raceway to receive roller elements. An improved lubricant seal arrangement is provided between the wear ring and the supporting outer raceway comprising a stator element, a rotor element and a flinger element.

Claims (103)

1. A roller bearing assembly comprising:

a generally cylindrical cone having a generally cylindrical, outwardly directed raceway thereon,

a generally cylindrical cup having a generally cylindrical, inwardly directed raceway thereon,

the cone having a generally flat, axially inward face,

the cup having a radially inward facing cylindrical counterbore,

a generally cylindrical wear ring adjacent and axially inward from the generally flat, axially inward face of the cone,

the wear ring having a generally cylindrical outer surface,

a seal of generally cylindrical configuration,

the seal having a first end section, an intermediate section and a second end section,

the first end section received in the radially inward facing cylindrical counterbore of the cup,

a rotor element of a generally cylindrical configuration, the rotor element comprising a base section, a radially outer section, a radially intermediate section and a radially inner section,

the radially inner section of the rotor element having an outer surface parallel to the generally cylindrical outer surface of the wear ring,

a stator element of a generally cylindrical configuration, the stator element comprising a base section, a radially outer section, a radially intermediate section, and a radially inner section,

the radially outer section of the stator element having an outer surface adjacent the radially intermediate section of the seal,

the radially outer section of the stator extending between the seal intermediate section and the radially outer section of the rotor element,

the radially intermediate section of the stator element extending between the radially outer section of the rotor element and the radially intermediate section of the rotor element,

at least a portion of the radially inner section of the stator element extending between the radially intermediate section of the rotor element and the radially inner section of the rotor element,

and a flinger element of a generally cylindrical configuration having a base section extending between the generally cylindrical surface of the wear ring and the radially inner section of the rotor element.

2. The roller bearing assembly of claim 1 further comprising

a resilient sealing element affixed to the second end section of the seal, the flinger element includes a side section extending from the base section and the base section has an inner surface,

the resilient sealing element contacting the inner surface of the flinger element.

3. The roller bearing assembly of claim 1

wherein the flinger element includes a side section extending from the base section and the base section has radially outer surface,

and including a resilient sealing element affixed to the second end section of the seal,

the resilient sealing element contacting a radially outer surface of the base of the flinger element and an outer surface of the stator.

4. The roller bearing assembly of claim 1

wherein the flinger element includes a side section that extends normal to the base section, and the base section has an inner surface, and the flinger element includes an end section that extends normal to the side section,

and a resilient sealing element affixed to the second end section of the seal,

the resilient sealing element contacting a radially outer surface of the base of the flinger element.

5. The roller bearing assembly of claim 1

wherein the flinger element includes a side section that extends normal to the base section, and the base section has an inner surface, and the flinger element includes an end section that extends normal to the side section,

and a resilient sealing element affixed to the second end section of the seal,

the resilient sealing element contacting a radially outer surface of the base of the flinger element and an outer surface of the stator.

6. The roller bearing assembly of claim 1

wherein the seal first end section is fit against the radially inward facing cylindrical counterbore of the cup,

the seal intermediate section is comprised of a first intermediate section extending generally normal to the first end section, and a second intermediate section that extends generally normal to the first intermediate section and generally parallel to the generally cylindrical outer surface of the wear ring,

and the seal second end section extending generally normal to the second intermediate section and generally normal to the generally cylindrical outer surface of the wear ring.

7. The roller bearing assembly of claim 1

wherein the rotor element base section includes an outer surface that abuts the generally flat, axially inward face of the cone,

and the radially outer section of the rotor, the radially intermediate section of the rotor each extend from and are generally normal to the base section of the rotor,

and the radially outer section of the rotor is adjacent to and radially spaced from the radially intermediate section of the rotor,

and the radially intermediate section of the rotor is adjacent to and radially spaced from the radially inner section of the rotor.

8. The roller bearing assembly of claim

wherein the stator element base section includes an outer surface that abuts an outer surface of the second end section of the end,

and the radially outer section of the stator,

the radially intermediate section of the stator and the radially inner section of the stator each extend from and are generally normal to the base section of the stator,

and the radially outer section of the stator is adjacent to and radially spaced from the radially intermediate section of the stator,

and the radially intermediate section of the stator is adjacent to and radially spaced from the radially inner section of the stator.

9. The roller bearing assembly of claim 1

wherein the flinger element includes a side section that extends normal to the base section, and the base section has a radially outer facing surface that is adjacent a radially inner facing surface of the radially inner section of the rotor,

and wherein retention assembly comprising a protrusion and a receiving structure is present on the radially outer facing surface of the base section of the flinger element and the radially inner facing surface of the radially inner section of the rotor.

10. A roller bearing assembly comprising:

a generally cylindrical cone having a generally cylindrical, outwardly directed raceway thereon,

a generally cylindrical cup having a generally cylindrical, inwardly directed raceway thereon,

the cone having a generally flat, axially inward face,

the cup having a radially inward facing cylindrical counterbore,

a generally cylindrical wear ring adjacent and axially inward from the generally flat, axially inward face of the cone,

the wear ring having a generally cylindrical outer surface

the seal having a first end section, an intermediate section and a second end section, inward facing cylindrical counterbore of the cup,

a seal of a generally cylindrical configuration,

a rotor element of a generally cylindrical configuration, the rotor element comprising a base section, a radially outer section, a radially intermediate section and a radially inner section,

the radially inner section of the rotor element having an outer surface parallel to the generally cylindrical outer surface of the wear ring,

a stator element of a generally cylindrical configuration, the stator element comprising a base section, a radially outer section, a radially intermediate section and a radially inner section,

the radially outer section of the stator element having an outer surface adjacent the radially intermediate section of the seal,

at least a portion of the radially outer section of the stator extending between the seal intermediate section and the radially outer section of the rotor element,

at least a portion of the radially intermediate section of the stator element extending between the radially outer section of the rotor element and the radially intermediate section of the rotor element,

at least a portion of the radially inner section of the stator element extending between the radially intermediate section of the rotor element and the radially inner section of the rotor element,

and a flinger element of a generally cylindrical configuration having a base section a portion of which extending between the generally cylindrical outer surface of the wear ring and the radially inner section of the rotor element.

11. The roller bearing assembly of claim 10 further comprising,

a resilient sealing element affixed to the second end section of the seal, the flinger element includes a side section extending from the base section and the base section has an inner surface,

the resilient sealing element contacting the inner surface of the flinger element.

12. The roller bearing assembly of claim 10

wherein the flinger element includes a side section extending from the base section and the base section has radially outer surface,

and including a resilient sealing element affixed to the second end section of the seal,

the resilient sealing element contacting a radially outer surface of the base of the flinger element and an outer surface of the stator.

13. The roller bearing assembly of claim 10

wherein the flinger element includes a side section that extends normal to the base section, and the base section has an inner surface,

and the flinger element includes an end section that extends normal to the side section,

and a resilient sealing element affixed to the second end section of the seal,

the resilient sealing element contacting a radially outer surface of the base of the flinger element.

14. The roller bearing assembly of claim 10

wherein the flinger element includes a side section that extends normal to the base section, and the base section has an inner surface, and the flinger element includes an end section that extends normal to the side section,

and a resilient sealing element affixed to the second end section of the seal,

the resilient sealing element contacting a radially outer surface of the base of the flinger element and an outer surface of the stator.

15. The roller bearing assembly of claim 10

wherein the seal first end section is fit against the radially inward facing cylindrical counterbore of the cup,

the seal intermediate section is comprised of a first intermediate section extending generally normal the first end section, and a second intermediate section that extends generally normal to the first intermediate section and generally parallel to the generally cylindrical outer surface of the wear ring,

and the seal second end sections extending generally normal to the second intermediate section and generally normal to the generally cylindrical outer surface of the wear ring.

16. The roller hearing assembly of claim 10

wherein the rotor element base section includes an outer surface that abuts the generally flat, axially inward face of the cone,

and the radially outer section of the rotor, the radially intermediate section of the rotor and the radially inner section of the rotor each extend from and are generally normal to the base section of the rotor,

and the radially outer section of the rotor is adjacent to and radially spaced from the radially intermediate section of the rotor,

and the radially intermediate section of the rotor is adjacent to and radially spaced from the radially inner section of the rotor.

17. The roller bearing assembly of claim 10

wherein the stator element base section includes an outer surface that abuts an outer surface of the second end of the seal,

and the radially outer section of the stator,

the radially intermediate section of the stator and the radially inner section of the stator each extend from and are generally normal to the base section of the stator,

and the radially outer section of the stator is adjacent to and radially spaced from the radially intermediate section of the stator,

and the radially intermediate section of the stator is adjacent to and radially spaced from the radially inner section of the stator.

18. The roller bearing assembly of claim 10

wherein the finger element includes a side section that extends normal to the base section, and the base section has a radially outer facing surface that is adjacent a radially inner facing surface of the radially inner section of the rotor,

and wherein a retention assembly comprising a protrusion and a receiving structure is present on the radially outer facing surface of the base section of the flinger element,

and the radially inner facing surface of the radially inner section of the rotor.

Assignments (3)
NOTICE OF SUCCESSOR AGENT AND ASSIGNMENT OF SECURITY INTEREST AT REEL/FRAME 027253/0488 Recorded Feb 10, 2025
From: BANK OF AMERICA, N.A., AS THE RESIGNING AGENT
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SUCCESSOR AGENT
Reel/Frame 070157/0268 →
SECOND AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Nov 18, 2011
From: AMSTED INDUSTRIES INCORPORATED; ABC RAIL PRODUCTS CHINA INVESTMENT CORPORATION; AMCONSTRUCT CORPORATION; AMRAIL CORPORATION; AMSTED INTERNATIONAL SERVICES, INC.; AMSTED RAIL COMPANY, INC.; AMSTED RAIL INDIA COMPANY INC.; AMSTED RAIL INTERNATIONAL HOLDINGS, INC.; AMSTED RAIL INTERNATIONAL, INC.; AMSTED RAIL VENTURES, INC.; AMVEHICLE CORPORATION; ASF-KEYSTONE MEXICO HOLDING CORP.; ASF-KEYSTONE, INC.; BAC INDIA HOLDING CO.; BAC INTERNATIONAL HOLDINGS INC.; BALTICARE, INC.; BALTIMORE AIRCOIL COMPANY, INC.; BALTIMORE AIRCOIL INTERNATIONAL SALES CO.; BN MEXICO HOLDING COMPANY, INC.; BURGESS-NORTON CHINA INC.; BURGESS-NORTON MFG. CO., INC.; CONSOLIDATED METCO CHINA INC.; CONSOLIDATED METCO, INC.; DIAMOND CHAIN CHINA COMPANY INC.; DIAMOND CHAIN COMPANY, INC.; GRIFFIN PIPE PRODUCTS CO., INC.; MEANS INDUSTRIES, INC.; MERIDIAN RAIL CHINA INVESTMENT CORP.; TRANSFORM AUTOMOTIVE, LLC; TRANSOLUTIONS, INC.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 027253/0488 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 8, 2010
From: MASON, MICHAEL; FETTY, MARK; HUBBARD, PAUL A.
To: AMSTED RAIL COMPANY, INC.
Reel/Frame 024102/0380 →