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US 4,035,040 AGranted
Self-aligning wheel mounting structure
AssigneeTowmotor Corporation
InventorWilliam T. Yarris
Life of this patent
Estimating the term…
Abstract
A self-aligning wheel mounting structure is disclosed of the type including a supporting axle shaft, an annular tread portion, and a bearing assembly mounted on the axle shaft for permitting the tread portion to make rolling engagement against a load bearing surface. Advantageously, the bearing assembly is limitedly permitted to rock on the axle shaft for improved self-aligning force transmission between the axle shaft, the bearing assembly, the tread portion, and the load bearing surface.
Claims7
A self-aligning wheel mounting structure, comprising:
- a supporting axle shaft having a crowned bearing seat thereon;
- a bearing assembly having an inner race and a plurality of bearing elements peripherally disposed about said inner race, said inner race having a substantially cylindrical internal bore rockably mounted on said crowned bearing seat;
- an annular tread portion freely rotatably supported on said bearing elements;
- and
- resilient means on said shaft for axially biasing said inner race to a preselected position on said seat.
2 more elements
A self-aligning wheel mounting structure, comprising:
- a supporting axle shaft having an external bearing seat;
- a bearing assembly having an inner race and a plurality of bearing elements peripherally disposed about said inner race, said inner race having an internal bearing seat;
- an annular tread portion freely rotatably supported on said bearing elements;
- and
- surface means for allowing limited rocking movement of said internal bearing seat of said inner race on said external bearing seat of said shaft, said surface means including interengaging contact of a substantially cylindrical surface with a crowned surface.
2 more elements
Dependencies are inferred from the claim text.