Long-travel side bearing for an articulated railroad car
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United States of America Patent
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-
May 15, 1990
Grant Date -
N/A
app pub date -
Feb 21, 1989
filing date -
Feb 21, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An articulated railroad car, which includes an articulated connector, rail truck and car body units, has at least one standard short-travel railroad car side bearing which is designed to permit down travel of the car body unit of at least 5/8 inch. In a preferred embodiment, one rail truck portion includes a long-travel railroad car side bearing. The long-travel side bearing includes a top cap member and a bottom member with a resilient member interposed therebetween. The long-travel side bearing permits roll axis movement of one car body unit relative to another car body unit to reduce forces on the rail truck which would tend to prevent its successful negotiation of curves.
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