| 摘要 |
A wheel structure wherein a hub includes both a hub body and a rubber support member which closes an opening of the hub body. A right bearing disposed on the hub body side and a left bearing disposed on the rubber support member side are rotatably mounted on an axle. An inner collar fitted on the axle is provided for maintaining a constant distance between the right and left bearings. The right bearing is brought into abutment against the rubber support member through a cylindrical outer collar which surrounds the inner collar. When the right bearing is press-fitted into the hub body hole, a press-fit load imposed on the right bearing can be borne by the rubber support member through the outer collar. The rigidity of the hub can be enhanced while preventing deformation. A higher load can be borne to act on the hub during vehicular operation.
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