Railcar adapter for connecting a railcar body to a bearing

A railcar adapter for radially connecting a railcar body to a bearing, and comprising an adapter body having:

• two lateral channels each delimited by a pair of opposed lugs and a lateral surface perpendicular to the opposed lugs, the lateral channels being adapted to cooperate with the railcar body,
• two frontal surfaces,
• an inner surface acting as a bearing seat for the bearing, and
• an outer surface, wherein
• the railcar adapter also comprises two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing, wherein
• the railcar adapter is further provided with a top cover mounted onto the outer surface of adapter body, the top cover being adapted to be in direct radial contact with the railcar body and comprising an outer surface having an upper central groove extending along an axis parallel to the axis of rotation of the bearing, and wherein
• the top cover is provided with at least one recess receiving a radially outwardly projecting pin provided to the outer surface of adapter body.

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 an adapter body having:
• two lateral channels each delimited by a pair of opposed lugs and a lateral surface perpendicular to the opposed lugs, the lateral channels being adapted to cooperate with the railcar body,
• two frontal surfaces,
• an inner surface acting as a bearing seat for the bearing, and
• an outer surface, wherein
• the railcar adapter also comprises two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing, wherein
• the railcar adapter is further provided with a top cover mounted onto the outer surface of adapter body, the top cover being adapted to be in direct radial contact with the railcar body, and wherein
• the top cover is provided with at least one recess receiving a radially outwardly projecting pin provided to the outer surface of adapter body.

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 an adapter body having:

• two lateral channels each delimited by a pair of opposed lugs and a lateral surface perpendicular to the opposed lugs, the lateral channels being adapted to cooperate with the railcar body,
• two frontal surfaces,
• an inner surface acting as a bearing seat for the bearing, and
• an outer surface, wherein
• the railcar adapter also comprises two frontal flanges that inwardly protrude with respect to the inner surface, and that delimit with the inner surface a housing for the bearing, wherein
• the railcar adapter is further provided with a top cover mounted onto the outer surface of adapter body, the top cover being adapted to be in direct radial contact with the railcar body, and wherein
• the top cover is provided with at least one recess receiving a radially outwardly projecting pin provided to the outer surface of adapter body.