A railcar adapter for radially connecting a railcar body to a bearing. The railcar adapter includes an adapter body having two lateral channels each delimited by a pair of opposed lugs and a lateral surface perpendicular to the opposed lugs, lateral channels being adapted to cooperate with the railcar body. The railcar adapter also includes two frontal surfaces, an inner surface acting as a bearing seat for the bearing, and an outer surface. The railcar adapter provides two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing, and at least one of the flanges is distinct from the adapter body and is mounted to a frontal surface of the body.

A railcar adapter for radially connecting a railcar body to a bearing. The railcar adapter includes an adapter body having two lateral channels each delimited by a pair of opposed lugs and a lateral surface perpendicular to the opposed lugs, lateral channels being adapted to cooperate with the railcar body. The railcar adapter also includes two frontal surfaces, an inner surface acting as a bearing seat for the bearing, and an outer surface. The railcar adapter provides two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing, and at least one of the flanges is distinct from the adapter body and is mounted to a frontal surface of the body.

A railcar adapter for radially connecting a railcar body to a bearing. The railcar adapter includes two lateral channels each delimited by a pair of opposed lugs and a lateral guiding surface perpendicular to the opposed lugs, lateral channels being adapted to cooperate with the railcar body. The lateral guiding surfaces of lateral channels, in cross-section through a plane perpendicular to the axis of rotation of bearing, are curved.

A railcar adapter for radially connecting a railcar body to a bearing. The railcar adapter includes two lateral channels each delimited by a pair of opposed lugs and a lateral guiding surface perpendicular to the opposed lugs, lateral channels being adapted to cooperate with the railcar body. The lateral guiding surfaces of lateral channels, in cross-section through a plane perpendicular to the axis of rotation of bearing, are curved.

A railroad car bearing adapter assembly configured to be employed in combination with a high warp restraint truck (with or without an auxiliary or original warp restraint system), and including a low profile thickness and relatively longitudinally narrow roller bearing adapter, a low profile adapter shear pad with a shear stiffness in a range of 85,000 lbs/in to 125,000 lbs/inch, and side wear pad that in combination total clearance in a range of 0.09 inches to 0.36 inches between the side frame thrust lugs and the adapter with the side wear pads. This overall combination reduces wheel wear and damage, reduces fuel consumption, reduces the need for railroad track repair, improves high speed stability and curving performance for both empty cars and loaded cars, provides more truck stability under a loaded car in shallow curves and while encountering certain perturbations, and provides optimum curving performance that enables the axles to better align with curves of relatively high degrees.

A railroad car bearing adapter assembly configured to be employed in combination with a high warp restraint truck (with or without an auxiliary or original warp restraint system), and including a low profile thickness and relatively longitudinally narrow roller bearing adapter, a low profile adapter shear pad with a shear stiffness in a range of 85,000 lbs/in to 125,000 lbs/inch, and side wear pad that in combination total clearance in a range of 0.09 inches to 0.36 inches between the side frame thrust lugs and the adapter with the side wear pads. This overall combination reduces wheel wear and damage, reduces fuel consumption, reduces the need for railroad track repair, improves high speed stability and curving performance for both empty cars and loaded cars, provides more truck stability under a loaded car in shallow curves and while encountering certain perturbations, and provides optimum curving performance that enables the axles to better align with curves of relatively high degrees.

A railcar adapter for connecting a railcar body to a bearing is provided. The railcar adapter includes an adapter body having two lateral channels each delimited by a pair of opposed lugs adapted to cooperate with the railcar body, an inner surface acting as a bearing seat for the bearing and an outer surface in radial contact with the railcar body. The inner surface includes at least one central groove located on a first axis of symmetry of the railcar adapter emerging in each lateral channel. The inner surface further provides a second central groove located on a second symmetry axis of the railcar adapter, perpendicular to the first symmetry axis.

A railcar adapter for connecting a railcar body to a bearing is provided. The railcar adapter includes an adapter body having two lateral channels each delimited by a pair of opposed lugs adapted to cooperate with the railcar body, an inner surface acting as a bearing seat for the bearing and an outer surface in radial contact with the railcar body. The inner surface includes at least one central groove located on a first axis of symmetry of the railcar adapter emerging in each lateral channel. The inner surface further provides a second central groove located on a second symmetry axis of the railcar adapter, perpendicular to the first symmetry axis.

An elastomeric pad is provided for use in a railway car truck that includes two sideframes and a bolster. Each sideframe has a pedestal opening at each end to receive a bearing adapter assembly. The bearing adapter assembly includes a cast steel bearing adapter that is formed to fit on top of an axle bearing assembly. An elastomeric pad, comprised of a selected hardness elastomer, is fit on top of the bearing adapter. Contact buttons extend from the top surface and bottom surface of the elastomeric pad and are received in openings in the elastomeric pad. A conductor provides an electrical connection between the contact buttons.

An elastomeric pad is provided for use in a railway car truck that includes two sideframes and a bolster. Each sideframe has a pedestal opening at each end to receive a bearing adapter assembly. The bearing adapter assembly includes a cast steel bearing adapter that is formed to fit on top of an axle bearing assembly. An elastomeric pad, comprised of a selected hardness elastomer, is fit on top of the bearing adapter. Contact buttons extend from the top surface and bottom surface of the elastomeric pad and are received in openings in the elastomeric pad. A conductor provides an electrical connection between the contact buttons.