Wheeled support assembly for conveyors with locking and fastening feature

A trolley wheel assembly for use with an overhead conveyor of the type including a track having a central vertical web and a lower flange, a conveyor chain, and a bracket having a lower portion secured to the chain and an upper portion supporting the trolley wheel assembly, said assembly comprising:

• an outer race having an outer peripheral surface riding on the lower flange of the track;
• an inner race defining a recess joining a race through bore, said bore through bore having a noncircular cross section;
• a plurality of rolling elements retained by and disposed between said races so that said outer race may rotate with respect to said inner race;
• a closure plug secured to said outer race and closing a face of said wheel assembly which faces the track vertical web;
• shaft means engaging said inner race through bore and said bracket upper portion for supporting said inner race on said bracket and preventing relative rotation of said inner race and said bracket;
• and
• a fastener extending through said bracket and engaging said shaft means for removably securing said shaft means to said bracket means, said shaft means having a noncircular in cross section outer surface engaging said inner race through bore and a head portion disposed within said inner race recess, said bracket upper portion defining a noncircular aperture engaging the outer surface of said shaft means whereby said inner race, said shaft means and said bracket are locked against relative rotation and said inner race is clamped between said shaft means head portion and said bracket upper portion.