Patent ID: 7475765

Claim:
A roller for a conveyor system in a multi-chamber washer, said conveyor system operable to convey a rack along a path within said multi-chamber washer, said roller comprised of: an outer roller section generally cylindrical in shape with a planar inner surface having a boss and an annular protrusion extending therefrom, said boss and said annular protrusion defining an annular groove therebetween, said boss extending above said annular protrusion; an inner roller section generally cylindrical in shape with a planar inner surface having a boss and an annular protrusion extending therefrom, said boss and said annular protrusion defining an annular groove therebetween, said boss extending above said annular protrusion said boss of said inner roller mating with said boss of said outer roller whereby said annular groove and said annular protrusion in said inner roller and said annular groove and said annular protrusion in said outer roller form an opening therebetween; a friction element disposed between said outer roller and said inner roller, said friction element dimensioned to be retained in said opening, said friction element being generally cylindrical in shape with a outer cylindrical portion having a diameter greater than an outer diameter of said outer roller and said inner roller such that said outer cylindrical portion extends above said outer diameter of said outer roller and said outer diameter of said inner roller, said friction element formed of a resilient material.