Bearing for liner-hanger assembly

Details Bearing for liner-hanger assembly Bearing for liner-hanger assembly

1978-11-13

1980-02-26

Phillips, Charles E.

Cutlery

F16C 1708

Patent

active

041903005

ABSTRACT:
An improved bearing assembly adapted for use in a liner-hanger assembly, which bearing assembly comprises: an upper cylindrical race element having a lower cylindrical surface; a lower cylindrical race element having an upper cylindrical surface and having adjoining inside and outside side surfaces; a load-bearing, low coefficient-of-friction bearing-liner material secured between the lower cylindrical surface of the upper race element and the upper cylindrical surface of the lower race element; inside and outside sealing-liner material secured to the inside and outside side surfaces of the lower race element; and inside and outside sleeve elements secured to and extending from the upper race element and extending parallel with the inside and outside liner material and into a close slidable and sealing relationship thereto, thereby providing an improved bearing assembly which prevents drilling mud or other debris from contacting the load-bearing bearing-liner material between the upper and lower face elements.

REFERENCES:
patent: 2696367 (1954-12-01), Robishaw
patent: 3797594 (1974-03-01), Goodfellow
patent: 4033640 (1977-07-01), Garcia

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