Differential case insert

Details Differential case insert Differential case insert

1998-08-06

1999-11-09

Wright, Dirk

Planetary gear transmission systems or components

Differential planetary gearing

Bevel gear differential

F16H 4808

Patent

active

059804173

ABSTRACT:
A case-driven differential for a vehicle has a pair of inserts, one of which is used in each of a pair of opposing bores in the differential case. These bores in which the inserts are used receive the ends of the pinion shaft. The inserts are plug-like elements which are press fitted into the bores. The inserts are preferably formed from powdered metal in a net forming technique. Such an insert will be harder and more wear-resistant than the metal used in the differential case and will possess additional porosity for providing and retaining lubricant in critical wear areas. The end of the insert which projects into the interior of the case may be used to provide a flat thrust surface against which one of the pinion mates on the pinion shaft may bear.

REFERENCES:
patent: 741931 (1903-10-01), Sandell
patent: 1097653 (1914-05-01), Lindsay
patent: 1158439 (1915-11-01), Bunting
patent: 1445865 (1923-02-01), Alden
patent: 3872741 (1975-03-01), Berchtold
patent: 4289047 (1981-09-01), Hopkins
patent: 5131894 (1992-07-01), Hilker
patent: 5281034 (1994-01-01), Hertlein
patent: 5545102 (1996-08-01), Burgman
patent: 5896775 (1999-04-01), Southcott
patent: 5897452 (1999-04-01), Schreier et al.

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