Patent ID: 7926428

Claim:
A railway car truck comprising two sideframes and a bolster, each sideframe having a pedestal opening at each end, each pedestal opening formed by a laterally outboard pedestal jaw, a laterally inboard vertical face and a roof section extending between the pedestal jaw and the vertical face, a bearing adapter received in each pedestal opening, each bearing adapter comprising a generally rectangular center section having a top surface, and lateral end sections each forming a concave opening to receive a bearing, each bearing adapter having a longitudinally spaced end sections, each end section forming a generally rectangular opening, each generally rectangular opening formed by a laterally extending adapter wall end and two laterally spaced, depending adapter shoulders, an adapter pad mounted on top of the bearing adapter, the adapter pad comprising a base section, a generally rectangular raised top section that extends laterally for less than the lateral width of the base section of the adapter pad and longitudinally for less than the longitudinal length of the base section of the adapter pad, and two pair of depending legs that extend downwardly from each longitudinal end of the adapter pad, and the pair of adapter pad legs at each longitudinal end of the adapter pad received in the generally rectangular opening at each longitudinal end of the bearing adapter, wherein the lower leg portion has tabs which extend longitudinally from the bearing adapter a distance sufficient to control the amount of roll of the side frame.