초록 ▼

A side frame for a railway car is disclosed comprising a pedestal jaw and an integral crown shaped pedestal jaw roof. A liner matching the shape of the crowned pedestal jaw roof is removably mounted to the pedestal jaw roof. In operation, the crown shaped pedestal jaw roof and snap-on liner reduce w

A side frame for a railway car is disclosed comprising a pedestal jaw and an integral crown shaped pedestal jaw roof. A liner matching the shape of the crowned pedestal jaw roof is removably mounted to the pedestal jaw roof. In operation, the crown shaped pedestal jaw roof and snap-on liner reduce wear on the pedestal jaw roof and permit swinging of the side frames relative to the railcar axles. The integral crown shaped pedestal roof and snap-on liner eliminate the traditional rocker seat, shims, and welded retainers, thereby reducing the maintenance and cost of traditional side frames.

대표청구항 ▼

[ What is claimed is:] [1.] A railcar truck assembly comprising transversely spaced longitudinally extending side frames, the transversely spaced longitudinally extending side frames defining a pedestal jaw, a bracket and a pedestal jaw roof defining a downwardly extending crown, a liner removably m

[ What is claimed is:] [1.] A railcar truck assembly comprising transversely spaced longitudinally extending side frames, the transversely spaced longitudinally extending side frames defining a pedestal jaw, a bracket and a pedestal jaw roof defining a downwardly extending crown, a liner removably mounted to the crown of the pedestal jaw roof, whereby the crown of the pedestal jaw roof and the liner reduce wear on the pedestal jaw roof and permit swinging of the transversely spaced longitudinally extending side frames.