Shopping cart wheel with roller/ball bearings

Details Shopping cart wheel with roller/ball bearings Shopping cart wheel with roller/ball bearings

1994-12-30

1996-05-21

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384492, 384504, 384516, 384589, F16C 1300, F16C 3358

Patent

active

055183220

ABSTRACT:
A shopping cart wheel bearing which has a smooth inner race and an outer bearing holding with many semi-cylindrical openings. Each of these openings support a roller bearing or a pair of ball bearings which extend inwardly from the outer bearing to contact the inner race. As the wheel turns, each roller or ball bearing turns in the semi-cylindrical opening.

REFERENCES:
patent: 1612170 (1926-12-01), Bingham
patent: 2983557 (1961-05-01), Blinder
patent: 2986430 (1961-05-01), Banerian
patent: 3807817 (1974-04-01), Black
patent: 4886377 (1989-12-01), Adachi et al.
patent: 5275473 (1994-01-01), Hicks
patent: 5332317 (1994-07-01), Niwa et al.

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