Track bushing

Bearings – Rotary bearing – Plain bearing

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Details

384625, 305 58R, 148570, F16C 3312, B62D 55205, C21D 104

Patent

active

052498689

ABSTRACT:
The invention relates to a track bushing having an outer peripheral surface, an inner peripheral surface, a longitudinal bore, first and second end portions, and a center portion. The outer peripheral surface and the inner end portions have a preselected hardness greater than the center portion.

REFERENCES:
patent: 2730472 (1956-01-01), Osborn, Jr.
patent: 3071981 (1963-01-01), Kuntzmann
patent: 3227586 (1966-01-01), Spencer
patent: 3567529 (1971-03-01), Burtnett
patent: 3762778 (1973-10-01), Boggs et al.
patent: 4639995 (1987-02-01), Garman et al.
patent: 4916981 (1990-04-01), Suzuki et al.
patent: 5049207 (1991-09-01), Sahara et al.

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