Patent ID: 8662557

Claim:
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.