CPC B61F 5/142 (2013.01) [B61F 3/02 (2013.01); B61F 5/06 (2013.01); B61F 5/125 (2013.01); B61F 5/14 (2013.01); B61F 5/26 (2013.01); B61F 5/30 (2013.01); B61F 5/305 (2013.01); B61F 5/32 (2013.01); B61F 5/50 (2013.01); Y10T 29/49622 (2015.01)] | 21 Claims |
1. A roller bearing adapter pad system configured for use with a three-piece truck comprising:
a roller bearing adapter configured to engage a roller bearing, the roller bearing adapter comprising:
a crowned top surface;
a bottom surface configured to engage a roller bearing;
first and second vertical shoulders that project upwardly from opposite lateral edges of the crowned top surface, each vertical shoulder having a lifting lug;
first and second longitudinal stops that project upwardly from opposite longitudinal edges of the top surface;
wherein the roller bearing adapter is symmetrical about a lateral centerline and symmetrical about a longitudinal centerline; and wherein the lifting lugs do not protrude laterally outward beyond an outer edge of each of the vertical shoulders;
an adapter pad engaged with the roller bearing adapter and configured to engage a side frame pedestal roof, the adapter pad comprising:
a continuous top plate having a central portion, first and second upturned regions projecting upwardly from opposite edges of the central portion, a first lateral flange projecting outwardly from the first upturned region, the first lateral flange having a first lateral edge, and a second lateral flange projecting outwardly from the second upturned region, the second lateral flange having a second lateral edge, the continuous top plate having first and second longitudinal edges;
a continuous bottom plate having a central portion, first and second upturned regions projecting upwardly from opposite edges of the central portion, a first lateral flange projecting outwardly from the first upturned region, the first lateral flange having a first lateral edge, and a second lateral flange projecting outwardly from the second upturned region, the second lateral flange having a second lateral edge, the continuous bottom plate having first and second longitudinal edges; and
an elastomeric member disposed between the top and bottom plate;
wherein the first and second laterally projecting flanges of the top plate and the bottom plate are entirely disposed above the vertical shoulders of the roller bearing adapter.
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