| 摘要 |
A side bearing unit for attachment to a bolster of a truck of a railroad car has a base which may be fastened to a top wall of the bolster. A housing, carried by the base, includes spaced sidewalls joined by end walls to define a cavity for an elastomeric device. A cap, positioned within the housing, is integrally joined to the elastomeric device with a top surface of the cap located above the housing for engagement with a wear plate attached to a bottom of a body of the car. During travel of the railroad car, sets of side bearing units are particularly effective in regulating independent rolling of the car body as well as impeding truck hunting.
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