Cast one-piece axle housing

Details Cast one-piece axle housing Cast one-piece axle housing

1991-09-23

1994-04-19

Stormer, Russell D.

Land vehicles: wheels and axles

Axle

301137, 74607, B60B 3508

Patent

active

053039858

ABSTRACT:
A structure for a housing for an axle assembly and method for manufacturing same is disclosed. The housing includes a tube which is formed by casting. The tube is cast having a brake flange, a spring seat, a shock absorber pad, and an outer end for mounting wheel bearings, all of which are integrally formed therewith. The tube is generally hollow and cylindrical in shape, but is formed having an outer circumferential surface which is generally circular in shape and an inner circumferential surface which is generally oval in shape. Thus, the wall thickness of the tube is not uniform about the circumference thereof. Rather, the wall thicknesses of the upper and lower portions of the tube are somewhat greater than the wall thicknesses of the side portions thereof. The wall thicknesses of the upper and lower portions of the tube are sized to accommodate vertically oriented loads induced therein which are generally larger than horizontally oriented loads which are normally encountered in use. The tube is cast from an iron alloy and is subjected to an austempering heat treatment process.

REFERENCES:
patent: 1439787 (1922-12-01), Beechler
patent: 1621007 (1927-03-01), Ford
patent: 1715135 (1929-05-01), Lambert
patent: 1978685 (1934-10-01), Mogford et al.
patent: 2148714 (1939-02-01), Urschel
patent: 3405952 (1968-10-01), Hertel et al.
patent: 3715935 (1973-02-01), Ebey
patent: 4048466 (1977-09-01), Toth et al.
patent: 4843906 (1989-07-01), Kuwahara
patent: 4893524 (1990-01-01), Ohashi et al.
patent: 4921036 (1990-05-01), Kuwahara

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