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US 10,960,904 B2Granted
Railcar adapter for connecting a railcar body to a bearing
AssigneeAktiebolaget Skf
InventorsGautier Jenart, Ludovic Fenayon, Thierry Le Moigne
Life of this patent
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Abstract
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.
Claims24
A railcar adapter for radially connecting a railcar body to a bearing, and comprising:
- two lateral channels each delimited by a pair of opposed lugs and a lateral guiding surface perpendicular to the pair of opposed lugs, each of the two lateral channels being adapted to cooperate with the railcar body, wherein the lateral guiding surface has a top edge, a bottom edge, and first and second lateral edges, two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing, an inner surface acting as a bearing seat for the bearing, and an outer surface adapted to be in direct radial contact with the railcar body, wherein the top edge of the lateral guiding surface is located on the outer surface, the bottom edge of the lateral guiding surface is located on the bearing, and the first and second lateral edges are each located at a separate one of the pair of opposed lugs, wherein the outer surface, in cross-section through the axis of rotation of bearing, is curved, and wherein the lateral guiding surface of each of the two lateral channels, when viewed in cross-section through a plane parallel to the axis of rotation of bearing, is curved at all points between the top edge and the bottom edge.
A railcar adapter for radially connecting a railcar body to a bearing, and comprising:
- two lateral channels each delimited by a pair of opposed lugs and a lateral guiding surface perpendicular to the pair of opposed lugs, each of the two lateral channels being adapted to cooperate with the railcar body, wherein the lateral guiding surface has a top edge, a bottom edge, and first and second lateral edges,
- two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing,
- an inner surface acting as a bearing seat for the bearing, and
- an outer surface adapted to be in direct radial contact with the railcar body, wherein the top edge of the lateral guiding surface is located on the outer surface, the bottom edge of the lateral guiding surface is located on the bearing, and the first and second lateral edges are each located at a separate one of the pair of opposed lugs,
- wherein the outer surface, in cross-section through the axis of rotation of bearing, is curved, and
- wherein the lateral guiding surface of each of the two lateral channels, when viewed in cross-section through a plane parallel to the axis of rotation of bearing, is curved at all points between the top edge and the bottom edge.
3 more elements
A railcar adapter assembly comprising:
- a railcar adapter,
- a bearing mounted inside the railcar adapter,
- a backing ring adapted to come into axial contact with the bearing at a first side, and
- an end cap assembly adapted to come into axial contact with the bearing at another side, opposite to the first side, the railcar adapter comprising:
- two lateral channels each delimited by a pair of opposed lugs and a lateral guiding surface perpendicular to the pair of opposed lugs, each of the two lateral channels being adapted to cooperate with the railcar body, wherein the lateral guiding surface has a top edge, a bottom edge, and first and second lateral edges,
- two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing,
- an inner surface acting as a bearing seat for the bearing, and
- an outer surface adapted to be in direct radial contact with the railcar body, wherein the top edge of the lateral guiding surface is located on the outer surface, the bottom edge of the lateral guiding surface is located on the bearing, and the first and second lateral edges are each located at a separate one of the pair of opposed lugs,
- wherein the lateral guiding surface, when viewed in cross-section through a plane perpendicular to the axis of rotation of bearing, is curved such the lateral guiding surface is smooth between the top edge, the bottom edge, and the first and second lateral edges.
6 more elements
A railcar adapter assembly comprising:
- a railcar adapter, a bearing mounted inside the railcar adapter, a backing ring adapted to come into axial contact with the bearing at a first side, and an end cap assembly adapted to come into axial contact with the bearing at another side, opposite to the first side, the railcar adapter comprising:
- two lateral channels each delimited by a pair of opposed lugs and a lateral guiding surface perpendicular to the pair of opposed lugs, each of the two lateral channels being adapted to cooperate with the railcar body, wherein the lateral guiding surface has atop edge, a bottom edge, and first and second lateral edges, two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing, an inner surface acting as a bearing seat for the bearing, and an outer surface adapted to be indirect radial contact with the railcar body, wherein the top edge of the lateral guiding surface is located on the outer surface, the bottom edge of the lateral guiding surface is located on the bearing, and the first and second lateral edges are each located at a separate one of the pair of opposed lugs, wherein the outer surface, in cross-section through the axis of rotation of bearing, is curved, and wherein the lateral guiding surface of each of the two lateral channels, when viewed in cross-section through a plane parallel to the axis of rotation of bearing, is curved at all points between the top edge and the bottom edge.
A railcar axle comprising:
- a railcar adapter assembly including a bearing mounted inside the railcar adapter,
- a backing ring adapted to come into axial contact with the bearing at a first side, and
- an end cap assembly adapted to come into axial contact with the bearing at another side, opposite to the first side,
- a shaft being rotatably mounted about an axis of rotation relative to a railcar adapter, inside the bearing, the shaft comprising a first end mounted radially inside the backing ring and a second end, opposite to the first end, secured to the end cap assembly, the railcar adapter comprising:
- two lateral channels each delimited by a pair of opposed lugs and a lateral guiding surface perpendicular to the pair of opposed lugs, each of the two lateral channels being adapted to cooperate with the railcar body, wherein the lateral guiding surface has a top edge, a bottom edge, and first and second lateral edges,
- two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing,
- an inner surface acting as a bearing seat for the bearing, and
- an outer surface adapted to be in direct radial contact with the railcar body, wherein the top edge of the lateral guiding surface is located on the outer surface, the bottom edge of the lateral guiding surface is located on the bearing, and the first and second lateral edges are each located at a separate one of the pair of opposed lugs,
- wherein the lateral guiding surface of each of the two lateral channels, when viewed in cross-section through a plane parallel to the axis of rotation of bearing, is curved at all pints between the top edge and the bottom edge.
6 more elements
A railcar axle comprising:
- a railcar adapter assembly including a bearing mounted inside the railcar adapter,
- a backing ring adapted to come into axial contact with the bearing at a first side, and
- an end cap assembly adapted to come into axial contact with the bearing at another side, opposite to the first side,
- a shaft being rotatably mounted about an axis of rotation relative to a railcar adapter, inside the bearing, the shaft comprising a first end mounted radially inside the backing ring and a second end, opposite to the first end, secured to the end cap assembly, the railcar adapter comprising:
- two lateral channels each delimited by a pair of opposed lugs and a lateral guiding surface perpendicular to the pair of opposed lugs, each of the two lateral channels being adapted to cooperate with the railcar body, wherein the lateral guiding surface has a top edge, a bottom edge, and first and second lateral edges,
- two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing,
- an inner surface acting as a bearing seat for the bearing, and
- an outer surface adapted to be in direct radial contact with the railcar body, wherein the top edge of the lateral guiding surface is located on the outer surface, the bottom edge of the lateral guiding surface is located on the bearing, and the first and second lateral edges are each located at a separate one of the pair of opposed lugs,
- wherein the outer surface, in cross-section through the axis of rotation of bearing, is curved, and
- wherein the lateral guiding surface, when viewed in cross-section through a plane perpendicular to the axis of rotation of bearing, is cured such the lateral guiding surface is smooth between the top edge, the bottom edge, and the first and second lateral edges.
7 more elements
Dependencies are inferred from the claim text.