Patent ID: 6422155
Filing Date: 2002-07-23
Classification: B61F

Abstract:
In combination, a rail car truck side frame having a pedestal, a roller bearing adapter for use with the side frame in supporting the side frame on a rail car truck wheel set, and a shear pad positioned on top of the roller bearing adapter and supporting the side frame pedestal, said shear pad including an upper plate and a lower plate, said plates being layered together and encapsulated with an elastomeric material,interlocking means on the shear pad and the roller bearing adapter preventing relative movement therebetween in a direction parallel with a longitudinal dimension of the side frame, including projections extending outwardly from the roller bearing adapter and in a direction generally perpendicular to the longitudinal dimension of the side frame, said shear pad lower steel plate having down-turned edges parallel to the side frame, which down-turned edges extend about the roller bearing adapter when the shear plate is seated on the roller bearing adapter, notches in said down-turned edges, with said roller bearing adapter projections extending into said notches, and interlocking means on the side frame pedestal and shear pad preventing relative movement therebetween in a direction parallel with the longitudinal dimension of the side frame including a pair of projections extending laterally outwardly from the side frame pedestal, said shear pad upper plate having up-turned edges parallel to the side frame formed and adapted to seat the side frame pedestal, notches in said upper plate up-turned edges, which notches receive the laterally extending projections from the side frame pedestal.