Drive axle assembly for use in tandem axle arrangements and pini

Details Drive axle assembly for use in tandem axle arrangements and pini Drive axle assembly for use in tandem axle arrangements and pini

1992-06-04

1993-12-07

Braun, Leslie A.

Machine element or mechanism

Elements

Gear casings

475332, 475237, 475230, F16H 3706

Patent

active

052674894

ABSTRACT:
A drive axle assembly and subassembly for use in tandem driving axle arrangements has a removable drive pinion shaft subassembly. An input shaft is journalled in an axle housing and is coupled to an output shaft also journalled in the housing by an inter-axle differential for torque sharing of driveline power. An input gear receives power from the inter-axle differential and drives a countershaft gear mounted on the drive pinion shaft. The drive pinion shaft is journalled in primary and secondary bearings which straddle the countershaft gear and are mounted on a removable cage which substantially surrounds the countershaft gear. The drive pinion shaft with countershaft gear is assembled into the primary and secondary bearings on the cage and is shimmed between the bearings to form a pinion shaft and subassembly. A threaded nut is torqued over the end of the drive primary shaft to retain and preload the drive pinion shaft in the bearings. The cage has a peripheral mounting flange which permits the subassembly to be shimmed and bolted against the axle housing to locate the drive pinion on the axle ring gear. Upon installation of the subassembly into the axle housing, a drive pinion pilot shaft portion is journalled in a third bearing in the axle housing.

REFERENCES:
patent: 2064262 (1936-12-01), Keese
patent: 2693244 (1954-11-01), Rockwell et al.
patent: 3000456 (1961-09-01), Christie
patent: 4046210 (1977-09-01), Nelson
patent: 4050534 (1977-09-01), Nelson et al.
patent: 4207780 (1980-06-01), Saxton
patent: 4852426 (1989-08-01), DeRees

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