| 摘要 |
A small integral molded vehicle wheel comprising a rim, a hub and connecting support structure. A roller bearing assembly comprising a split outer race, rollers and cage structure, is disposed within the hub and a resilient retaining end cap lockingly engages the hub bore retaining the rollers and cage in proper axial alignment. An integral seal is formed with the end cap so as to prevent the ingress of dirt and foreign material. A method for making the above-described wheel comprising the steps of: injection molding the rim, connecting support structure and hub; inserting a split outer race into the bore of the hub while the injection-molded piece is still hot; and cooling the structure so as to cause the inner diameter of the hub to contract and thereby to secure the split outer race in position in the hub.
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