Baker Hughes, a Ge Compnay, LLC

Michal Benes

Jon David Schroder

Jiaxiang Ren

John Abhishek Raj Bomidi

Bearing systems configured for use on a downhole tool may include a tensioner bolt having a complementary nut, the tensioner bolt and nut sized and shaped to secure the rolling cutter member to a head. A radial bearing may include an annular sleeve sized and shaped to surround the head. A shaft washer may be sized and shaped to surround the head between an enlarged head of the tensioner bolt and the annular sleeve. A bearing element may be configured for positioning proximate the head, the bearing element comprising an upper surface configured for sliding, frictional contact with a lower surface of the shaft washer.

Bearings for downhole tools, downhole tools incorporating such bearings, and related methods

A method of forming a modified thermoplastic structure for a down-hole application comprises forming a thermoplastic structure comprising at least one thermoplastic material formulated for crosslinking using an electron beam process. The thermoplastic structure is exposed to at least one electron beam to crosslink polymer chains of the thermoplastic structure. Other methods of forming a modified thermoplastic structure, and a down-hole tool are also described.

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The Woodlands, TX, United States of America

Michal Benes