Shopping cart wheel assembly with anti-friction bearing and fric

Details Shopping cart wheel assembly with anti-friction bearing and fric Shopping cart wheel assembly with anti-friction bearing and fric

1996-05-24

1997-11-25

Mitchell, David M.

Land vehicles: wheels and axles

Wheel

Hub

301 57, 384624, B60B 2700

Patent

active

056903952

ABSTRACT:
A shopping cart wheel assembly having an anti-friction or ball bearing portion and also having a journal bearing. Under severe side loads or conditions of wear, the journal bearing takes over and prevents the wheel from moving significantly out of alignment.

REFERENCES:
patent: 4095846 (1978-06-01), Agins
patent: 4592595 (1986-06-01), Freeman
patent: 4881828 (1989-11-01), Kato
patent: 4938610 (1990-07-01), Kato
patent: 5275472 (1994-01-01), Hicks
patent: 5275473 (1994-01-01), Hicks
patent: 5478140 (1995-12-01), Racosky
Boston Gear, North American Rockwell, pp. 832, 841, 843 1969.

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