Patent ID: 6679634
Filing Date: 2004-01-20
Classification: F16C

Abstract:
In combination with a wheel and axle of conveyance apparatus, a bearing for providing relative rotation between the wheel and the axle, the bearing comprising an inner member having a bore for receiving the axle and an outer surface defining an inner race, an outer member attachable to the wheel and having an inner surface defining an outer race, a plurality of rolling elements disposed for bearing load between said inner and outer races, said inner and outer members and said rolling elements assembled together as a unit, said inner and outer members each having a thickness to provide sufficient rigidity that a tight fit is not required between said inner and outer members and the axle and wheel respectively to support said inner and outer members for bearing the load thereof whereby the assembled unit is self-supporting when attached to the axle and the wheel for relative rotation therebetween thereby defining a cartridge, a high temperature or ultra high temperature solid lubricant between said races, the axle being loosely received in said inner member bore and rigidly detachably attached to said inner member, and said outer member being loosely received in the wheel and rigidly detachably attached thereto whereby said inner and outer members are detachably attachable to the axle and the wheel respectively for replacement of the cartridge without disassembling the cartridge.