Patent ID: 7028825
Filing Date: 2006-04-18
Classification: B65G

Abstract:
1. A roller insert for a conveyor roller tube, comprising: (a) a cartridge having inner and outer ends and configured to be inserted into an end of a conveyor roller tube; (b) a stub axle positioned within said cartridge, said stub axle including an elongate body portion, a cylindrical tip portion extending away from said body portion, said cylindrical tip portion having an outer end surface and a threaded bore extending from said outer end surface towards said body portion, and a hollow end cap having distal and proximal ends and a hardness less than that of said tip portion, the interior of the end cap including a threaded shaft extending from the distal end of the end cap, said end cap threadingly secured on said cylindrical tip portion by threading engagement of said threaded shaft and said threaded bore; and (c) at least one bearing mounted within said cartridge and supporting said axle such that said cartridge is rotatable with respect to said axle and said axle is slidable with respect to said bearing; wherein said axle is biased outwardly from said cartridge such that said end cap projects outwardly from said cartridge outer end.