Greaseless hanger assembly for a railcar door

The A railcar door assembly comprising:

• a substantially planar door;
• at least one elongated support member rotatable mounted to said door;
• a drive mechanism operatively connected to said elongated support member for selectively rotating said support member about its length;
• a crank disposed at least adjacent an end of said support member and being rotatable therewith, said crank including a crank pin;
• a roller assembly operatively secured to said crank pin to facilitate relative rotation therebetween about an axis normal to the axis of rotation of a roller associated with said roller assembly;
• and,
• said crank pin including a shaft portion received in a well defined in said roller assembly, said shaft portion having a peripherally recessed area therearound with a self-lubricating sleeve received therein, said shaft portion with said sleeve being closely received in said well for selective rotational movement therein during opening and closing of said door wherein said well in said roller assembly has a side wall and a bottom wall and said shaft portion of said crank pin has an end face, at least one self-lubricating member being interposed between said bottom wall and said end face.

A greaseless connection between a crank assembly and a roller hanger assembly used for movably supporting a railcar door on a track, said connection comprising:

• said crank assembly including a crank pin with a shaft portion having an elongated body with an outer terminal end and a peripherally extending recess axially spaced therealong from said outer terminal end, and a self-lubricating sleeve closely received in said peripheral recess;
• said roller hanger assembly including a housing having an elongated well dimensioned to closely rotatably receive said shaft portion with said sleeve, said well having a bottom wall;
• and,
• at least one self-lubricating member interposed between said bottom wall and said shaft portion outer terminal end.