Roller cone bit bearing with elastomeric seal having self...

Details Roller cone bit bearing with elastomeric seal having self... Roller cone bit bearing with elastomeric seal having self...

E - Fixed Constructions

21

B

E21B 10/25 (2006.01)

Patent

CA 2705607

A roller cone bit having an elastomeric seal with a self break-in property is disclosed. The elastomeric seal includes abrasive material on a sliding surface for facilitating break-in. Examples of abrasive materials include ground rock, hard metals, tungsten, tungsten carbide, tantalum, tantalum carbide, titanium carbide, titanium nitride, and minerals, diamonds and nanomaterial enhanced diamond.

L'invention concerne un trépan à molettes comportant un joint élastomère ayant une propriété d'autorodage. Le joint élastomère comprend un matériau abrasif sur une surface glissante pour faciliter le rodage. Les exemples de matériaux abrasifs comprennent la roche broyée, les métaux durs, le tungstène, le carbure de tungstène, le tantale, le carbure de tantale, le carbure de titane, le nitrure de titane, et les minéraux, le diamant et le diamant amélioré par nanomatériau.

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