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Bill O’Donnell

Making the Case for Long Travel Constant Contact Side Bearings

January 3, 2014 | Filed under: Vehicle Design, Vehicle/Track

by Bill O’Donnell • July 4, 2005 As part of its efforts to reduce the stress state on North American railroads, the Association of American Railroads (AAR) mandated that all new cars ordered after January 1, 2002, must be equipped with constant contact side bearings. Constant contact side bearings (CCSBs) raise the threshold …

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