Relieved bearing adapter for railroad freight car truck
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United States of America Patent
Stats
-
May 13, 2014
Grant Date -
Apr 25, 2013
app pub date -
Sep 15, 2012
filing date -
Jul 8, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A rail road freight car truck has a truck bolster mounted transversely between a pair of side frames. The mounting interface between the wheelset axle ends and the sideframe pedestals includes a bearing adapter. It has an upper portion that seats in the sideframe pedestal. The underside, lower portion, of the bearing adapter defines sits on the wheelset bearing casing. The lower portion has an apex, and has a first land portion for engaging a first portion of the bearing casing, and a second land portion for engaging a second portion of the bearing casing. The apex lies circumferentially between the first and second lands portions. There is a relief formed at the apex over the bearing race, so that vertical load is split to enter the casing to either side of top dead center.
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