Train axle assembly

1. A train axle assembly comprising:

a train axle;

a ring assembly coaxially mounted on said train axle, said ring assembly having a main section comprising a surface with a substantially constant outer diameter, said ring assembly comprising:

a projection extending axially from said main section, said projection located at a diameter less than said outer diameter of said main section;

said projection having a portion of an inner diameter contacting said train axle wherein said ring assembly is affixed to said train axle to provide resistance to relative rotational and axial movement between said ring assembly and said train axle;

said main section and said projection bounding a cavity opening in an axial direction such that said main section extends in an axial direction less than said projection extends in said axial direction;

said main section having a connecting portion extending continuously in a radial direction from said outer diameter to a point where said projection extends from said main portion, said main portion having a lateral portion extending continuously in the radial direction from said outer diameter to said cavity; and

a structure operatively engaged by said ring assembly and mounted on said train axle.

2. The train axle assembly of claim 1 , wherein said main section extends radially from said outer diameter to said projection.

3. The train axle assembly of claim 2 wherein said cavity extends an entire circumferential length of said ring assembly.

4. The train axle assembly of claim 3 wherein said cavity faces in an axial direction.

5. The train axle assembly of claim 4 wherein said structure operatively engaged by said ring assembly comprises one of a bearing housing, a backing plate, a ring or a housing.

6. The train axle assembly of claim 5 wherein the inside diameter of said ring assembly is less than an outside diameter of said train axle.

7. The train axle assembly of claim 5 wherein the inside diameter of said ring assembly is less than an outside diameter of said train axle.

8. The train axle assembly of claim 7 wherein the cavity of said ring assembly is deformed.

9. The train axle assembly of claim 7 wherein the cavity of said ring assembly is deformed.

10. The train axle assembly of claim 9 wherein said ring assembly comprises a ring shape.

11. The train axle assembly of claim 9 wherein said ring assembly comprises a ring shape.

12. The train axle assembly of claim 2 wherein said structure operatively engaged by said ring assembly comprises one of a bearing housing, a backing plate, a ring or a housing.

13. A method of assembling a train axle assembly comprising:

providing a train axle;

coaxially mounting a ring assembly on said train axle, said ring assembly having a main section comprising a surface with a substantially constant outer diameter, said ring assembly comprising:

a projection extending axially from said main section, said projection located at a diameter less than said outer diameter of said ring assembly;

said projection having a portion of a diameter contacting said train axle wherein said ring assembly is affixed to said train axle to provide resistance to relative rotational and axial movement between said ring assembly and said train axle;

said main section comprising a first lateral side and a second lateral side connected by an axial side at said outer diameter;

said main section and said projection bounding a cavity opening in an axial direction such that said main section extends in an axial direction less than said projection extends in said axial direction;

the main section having a connecting portion extending continuously in a radial direction from the outer diameter to a point where the projection extends from the main portion, the main portion having a lateral portion extending continuously in the radial direction from the outer diameter to the cavity;

mounting a structure on said train axle and operatively engaging said structure by said ring assembly.

14. The method of claim 13 , wherein main section extends radially from said outer diameter to said projection.

15. The method of claim 14 wherein said cavity extends an entire circumferential length of said ring assembly.

16. The method of claim 15 wherein said cavity faces in an axial direction.

17. The method of claim 15 wherein said structure comprises one or more of a bearing housing, a backing plate, a ring or a housing.

18. The method of claim 17 wherein the inside diameter of said ring assembly is less than an outside diameter of said train axle.

19. The method of claim 18 further comprising deforming the cavity of said ring assembly.

20. The method of claim 19 wherein said ring assembly comprises a ring shape.

21. A train axle assembly comprising:

a train axle;

a ring assembly coaxially mounted on said train axle, said ring assembly having a main section comprising a surface with a substantially constant outer diameter, said ring assembly comprising:

a projection extending axially from said main section, said projection located at a diameter less than said outer diameter of said ring assembly;

said main section comprising a first lateral side and a second lateral side connected by an axial side at said outer diameter;

said projection having an inner surface contacting said train axle wherein said ring assembly is affixed to said train axle to provide resistance to relative rotational and axial movement between said ring assembly and said train axle; and

said main section and said projection bounding a cavity opening in an axial direction, said main section having a connecting portion extending continuously in a radial direction from said outer diameter to a point where said projection extends from said main portion, said main portion having a lateral portion extending continuously in the radial direction from said outer diameter to said cavity; and

a structure operatively engaged by said ring assembly and mounted on said train axle, said inner surface extending upwardly from a radially innermost point of said inner surface toward an open end of said cavity.