Process for manufacturing a bearing

Details Process for manufacturing a bearing Process for manufacturing a bearing

2011-02-08

2011-02-08

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Process for making bearing or component thereof

C029S898040, C029S898047, C029S898059, C029S898120, C029S558000, C029S402180, C029S516000

Reexamination Certificate

active

07882638

ABSTRACT:
A process for manufacturing a bearing. The bearing may be used in a tool disposed within a bore hole. The process comprises providing a tubular sleeve and applying a hard facing material on the outer diameter of the tubular sleeve so that the hard facing material is fused onto the outer diameter, and thereafter applying a material layer on the outer diameter so that the material layer is fused onto the outer diameter. The method further includes machining the outer diameter so that a portion of the material layer is removed, and then machining the inner diameter so that only the hard facing material is left as an inner diameter. The method further includes machining the outer diameter and the inner diameter in order to form the bearing. In the most preferred embodiment, the method further includes placing the bearing into a housing, and inserting a mandrel into the bearing, and wherein a hard coating of the mandrel abuts the bearing. A mud motor for rotating a bit in a well bore is also disclosed.

REFERENCES:
patent: 2164737 (1939-07-01), Ford
patent: 3153990 (1964-10-01), Kunzog
patent: 3409966 (1968-11-01), Hilbish
patent: 4273159 (1981-06-01), Bolton et al.
patent: 6309762 (2001-10-01), Speckert
patent: 6561290 (2003-05-01), Blair et al.
Bortech Model 306-P, www.bortech.com, web pages downloaded, Bortech Corporation.
Dyna-Drill Technologies Brochure, “New Matrix-3 Coated Bearings boost Performance of Mud Motors”.
Elizabeth Carbide Components, Inc. Brochure, “Bushings, Pins, Shafts, and Bearings”.
A Pullman Company Brochure, “Conforma Clad”.
Arocoy Brochure, “Quick Tip”.
UK Intellectual Property Office, Examination Report, Jan. 15, 2010.

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