Independently rotatable, split tread, single wheel assembly

Details Independently rotatable, split tread, single wheel assembly Independently rotatable, split tread, single wheel assembly

2005-04-19

2005-04-19

Mah, Chuck Y. (Department: 3676)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Casters

Wheels

C016S045000, C016S03100R, C016S040000

Reexamination Certificate

active

06880203

ABSTRACT:
An independently rotating, split tread wheel assembly includes a pair of disks each having an outer tread formed of rubber or polyurethane compounds and supported on the periphery thereof. Each disk includes a central opening that receives a ball bearing assembly. A pair of hub inserts have central annular surfaces in adjacent relationship. A cylindrical spacer extends about the central annular surfaces and supports the inner races of the bearing assemblies so that the two disks turn independently about the hub inserts on their respective bearing assemblies. A pair of spaced apart caster bracket arms straddle the wheel assembly and impinge on the opposed outer surfaces of the hub inserts. An axle extends through aligned holes in the arms and through central bores in the hub inserts, and is secured thereto.

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