Shopping cart wheels with polymeric bearing races

Details Shopping cart wheels with polymeric bearing races Shopping cart wheels with polymeric bearing races

1992-12-08

1994-01-04

Stormer, Russell D.

Land vehicles: wheels and axles

Wheel

Hub

301 647, 384492, B60B 502

Patent

active

052754731

ABSTRACT:
An improved shopping cart wheel which includes a hub which has bearing supporting cavities. The outer bearing is fabricated from a polymer, and the inner bearing is likewise fabricated from a polymer and has a cylindrical portion which extends into the center of the hub. This construction avoids the corrosion heretofore caused by cleaning solutions on the metal races.

REFERENCES:
patent: 2863701 (1958-12-01), Jones et al.
patent: 2955884 (1960-10-01), Marshall
patent: 3583511 (1971-06-01), Asberg
patent: 3695728 (1972-10-01), Haussels
patent: 4113328 (1978-09-01), Vander Meulen
patent: 4606657 (1986-08-01), Tanaka
patent: 5002163 (1991-03-01), Kidd
patent: 5058867 (1991-10-01), Hadano et al.

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