Stub shaft and bearing assembly and conveyor idler roller incorporating same

摘要

A stub shaft assembly (30) comprising a stub shaft or axle (14) and a bearing assembly for rotatably supporting the stub shaft or axle (14), the stub shaft or axle (14) having or being connected to a main body having a radially extending body (15) defining inner ball races (16) and a pair of outer members (12) defining outer ball races (22) with ball bearings (13) disposed between the inner and outer ball races (16, 22). In other embodiments the bearings are roller bearings. A conveyor idler roll is also disclosed which comprises a tubular shell mounted to a stub shaft assembly (30) at least at one end.

主权项

1. An apparatus for a conveyor idler roll, said apparatus comprising
an end hub having a hub body adapted to be received in an end portion of a tubular shell of said idler roll, said body of said end hub having an outer land of a substantially constant external diameter substantially the same as an inner diameter of the end of the tubular shell to enable said end hub to support the end of the tubular shell, said hub body having an annular groove in its outer surface, said annular groove being adapted to receive a radially deformed outer end of said tubular shell as the outer end is swaged into the annular groove for connection of said tubular shell to said end hub, a blind recess in said hub body, and a stub shaft assembly for supporting said end hub, said stub shaft assembly comprising
a main body anda bearing assembly, said bearing assembly being located within said blind recess, said bearing assembly comprising
first and second spaced apart bearings, each said bearing comprising
an inner bearing race formed in or on said main body,an opposing outer bearing race, andsets of rotatable or roll bearing elements arranged between respective said inner and outer bearing races, said bearing assembly being adapted to resist both radial loads and thrust loads in opposite directions.