DEVICE FOR IMPROVING WARP STIFFNESS OF A RAILCAR TRUCK.

摘要

A sideframe pedestal jaw accommodates a bearing adapter which locks the adapter to sideframe, thereby preventing it from all of movement within the pedestal jaw opening. Locking the bearing adapter forces the truck axles to remain at a right angle with respect to the sideframes. Maintaining this right angular relationship substantially curtails truck warpage, which induces wheel misalignment that leads to undesirable truck hunting high speed instability.