US 12,258,052 B2
Universal backing ring
Joseph Michael Shoup, Imperial, PA (US); Ryan Douglas Abel, Moon Township, PA (US); and Mark John Hiszem, Tallmadge, OH (US)
Assigned to A. Stucki Company, Moon Township, PA (US)
Filed by A. Stucki Company, Moon Township, PA (US)
Filed on Jun. 25, 2021, as Appl. No. 17/358,214.
Prior Publication US 2022/0410947 A1, Dec. 29, 2022
Int. Cl. B61F 15/22 (2006.01)
CPC B61F 15/22 (2013.01) 19 Claims
OG exemplary drawing
 
1. A one-piece, integrally formed universal backing ring, comprising:
an integrally formed, one piece annular structure having a center opening configured to be translated over a journal of a railcar axle and engage a dust guard and a dust guard fillet of the railcar axle, the annular structure comprising:
an inner contoured surface having a profile that is contoured for a fit with a complementary surface of the dust guard fillet;
a dust guard lip which projects over the dust guard fillet and is configured to engage the dust guard by a mechanical interference fit, the dust guard lip generally parallel with an axis of the annular structure and having a length of 0.000-0.375 inches; and
a relief groove disposed between the inner contoured surface and the dust guard lip, the relief groove having a radius of curvature and having a radial depth of 0.040-0.438 inches from the dust guard lip;
wherein the annular structure further comprises a radially contoured edge portion extending from the dust guard lip with a radius of curvature toward an outer surface of the annular structure and terminating at an edge of the annular structure.