Non-reversible thrust washer

Details Non-reversible thrust washer Non-reversible thrust washer

1992-07-13

1993-10-05

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

384424, F16C 1704

Patent

active

052498700

ABSTRACT:
A non-reversible thrust washer is provided. One corner of the thrust washer is curved to abut against a shoulder in the element to which the thrust is being transferred. The other portions of the thrust washers are held in a groove in the part from which thrust is being transferred. The groove is asymmetrical and the thrust washer is provided with a corresponding asymmetry so that the thrust washer cannot be inserted into the groove backwards. The thrust washer preferably is manufactured out of sintered powdered metal in a die having the curved portion formed in the die, with the punch having the asymmetrical portion formed in the punch.

REFERENCES:
patent: 4236767 (1980-12-01), Feldle
patent: 4288172 (1981-09-01), Livesay et al.
patent: 4693699 (1987-09-01), Gregerson
patent: 4854751 (1989-08-01), Grassmuck et al.

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