Abstract
The contact surface of a hinge suffers huge pressure in particularly bad lubrication conditions. Reinforced polymer bearing pads offers low friction under dry sliding conditions. Load transfer between contact surfaces was studied, showing that the pressure and positions are related to the power output of the loco. The friction coefficient of concave bearings with polymer pads was low, and would not totally failed in a high contact stress. Performances of polymer pads on loads were simulated, and provided a global analysis for the design of the pads.
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